Yuzo Koketsu

Lab. Publication List, Revised as of June 3, 2019

 

 

<2019>

1.       Iida, R. Piñeiro, C. and Koketsu, Y. 2019. Incidences and risk factors for prolapse removal in Spanish sow herds. Preventive Veterinary Medicine. 163:79-86. https://doi.org/10.1016/j.prevetmed.2018.12.016

 

2.      Piñeiro, C., Morales, J., Rodríguez, M., Aparicio, M., Manzanilla, E. G., Koketsu, Y. 2019. Big (pig) data and the internet of the swine things. A new paradigm in the industry. Animal Frontiers. 9:6-15. https://doi.org/10.1093/af/vfz002

 

3.       Yatabe Y., Iida R., Piñeiro C.,  Koketsu Y. 2019. Recurrence patterns and lifetime performance of parity 1 sows in breeding herds with different weaning-to-first-mating intervals. Porcine Health Management. 5(15) https://doi.org/10.1186/s40813-019-0122-0

 

4.        Iida R., Yatabe Y., Piñeiro C., Koketsu Y. 2019. Nurse sows’ reproductive performance in different parities and lifetime productivity in Spain. Journal of Agricultural Science. 11 (10):29-38. DOI:10.5539/jas.v11n10p29

 

<2018>

5.       Tani, S., Piñeiro, C. and Koketsu, Y. 2018. Culling in served females and farrowed sows at consecutive parities in Spanish pig herds. Porcine Health Management. 4:3. DOI.org/10.1186/s40813-018-0080-y

 

6.        Tani, S., Piñeiro, C. and Koketsu, Y. 2018. High-performing farms exploit reproductive potential of high or low prolific sows better than low-performing farms. Porcine Health Management. 4:15, https://doi.org/10.1186/s40813-018-0091-8.

 

7.        Iida, R., Kobayashi., M, Yasuda, H., and Koketsu, Y. 2018. Characteristics of age, breeds and lipoprotein concentrations of lipoprotein cholesterol and triglyceride in adult dogs with hypercorticosteroidism. Kanto Journal of Animal Science. 69:2-10.(飯田涼介・小林茉央・安田英巳・纐纈雄三. 犬の属性と血中リポプロテインコレステロール値及び中性脂肪値における副腎皮質機能亢進症の特徴. 関東畜産学会69:2-10)

 

<2017>

 

8.        Koketsu, Y., Tani S. and Iida, R. 2017. Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds. Porcine Health Management. 3:1. DOI 1186/s40813-016-0049-7.

 

9.       Tani S. and Koketsu, Y. 2017. Climatic factors and production factors associated with culling risks due to pregnancy failure for female pigs in commercial herds located in a humid subtropical climate zone. Journal of Agricultural Science. 9:1:1-13. doi:10.5539/jas.v9n1p109-117.

 

10.   Tani S., Piñeiro, C. and Koketsu, Y. 2017. Mortality and Survival Probability of Female Pigs in Southern European Commercial Breeding Herds. Journal of Agricultural Science. 9:4:1-13. doi:10.5539/jas.v9n4p1-13.

 

11.    Tani S., Piñeiro, C. and Koketsu, Y. 2017. Characteristics and risk factors for severe repeat-breeder female pigs and their lifetime performance in commercial breeding herds. Porcine Health Management. 3:12 doi:10.1186/s40813-017-0059-0

 

12.    Koketsu, Y. and Iida, R. 2017. Sow housing associated with reproductive performance in breeding herds. Molecular Reproduction and Development. 84: 979–986. DOI: 10.1002/mrd.22825

 

13.    Iida, R. Piñeiro, C. and Koketsu, Y. 2017. Behaviors, displacement and pregnancy loss in pigs under an electronic sow feeder system. Journal of Agricultural Science. 912: 43-53. doi:10.5539/jas.v9n12p43-53.

 

14.    Ishikawa, Y. Tani, S., Iida, R. and Koketsu, Y. 2017. Origin of breeding stock supply has an effect on number of pigs born alive on swine breeding farms. Meiji University Agriculture Research Bulletin. 67:11-19.

 

15.    Tani S., Nakamura K., Iida R. and Koketsu, Y. 2017. Risks of sows farrowing 8 or fewer pigs born alive in commercial breeding herds associated with production factors and served months or outdoor temperature. Kanto Journal of Animal Science. 68:2-9.

(谷 里実・中村 楓・飯田 涼介・纐纈 雄三. 2017.生産農場での繁殖雌豚の次産次生存産子数8頭以下になるリスクと種付け月または戸外気温および生産因子の関連性.関東畜産学会68:2-9.

 

<2017>

16.   Tani S., Piñeiro, C. and Koketsu, Y. 2017. Mortality and Survival Probability of Female Pigs in Southern European Commercial Breeding Herds. Journal of Agricultural Science. 9:4:1-13. doi:10.5539/jas.v9n4p1-13.

 

17.    Tani S., Piñeiro, C. and Koketsu, Y. 2017. Characteristics and risk factors for severe repeat-breeder female pigs and their lifetime performance in commercial breeding herds. Journal of Porcine Health Management. Porcine Health Management. Accepted.

 

18.    Koketsu, Y. and Iida, R. 2017. Sow housing associated with reproductive performance in breeding herds. Molecular Reproduction and Development. 2017. Accepted.

 

<2016>

 

19.   Tani S., Piñeiro, C. and Koketsu, Y. 2016. Recurrence patterns and factors associated with regular, irregular and late returns-to-service of female pigs and their lifetime performance on southern European farms. Journal of Animal Science. 94:1924-1932.

 

20.   Tani S. and Koketsu, Y. 2016. Climatic factors and production factors associated with culling risks due to pregnancy failure for female pigs in commercial herds located in a humid subtropical climate zone. Journal of Agricultural Science. 9:1:1-9. doi:10.5539/jas.v9n1p1

 

21.   I Iida, R., Piñeiro, C. and Koketsu, Y. 2016. Abortion occurrence, repeatability and factors associated with abortions in female pigs in commercial herds. Livestock Science. 185:131-135.

 

22.   Usui, S., Yasuda, H. and Koketsu, Y. 2016. Characteristics of obese or overweight dogs visited at in private Japanese veterinary clinics. Asian Pacific Journal of Tropical Medicines. 6(4):338-343.

 

23.    Tani S., Iida, R. and Koketsu, Y. 2015.Climatic factors, parity and total number of pigs born associated with sows having stillborn piglets during hot and humid or cold seasons in Japanese breeding herds. Veterinary Medicine and Animal Sciences. 2016; 4:3. Online journal. http://dx.doi.org/10.7243/2054-3425-4-3.

 

24.   Yamamoto S. and Koketsu, Y. 2016. Predictions of adjusted 21-day weaning litter weights during summer using Markov Chain Monte Carlo methods and Bayesian inference. Journal of Jpn. Swine Science. 53:105-110. (山元駿太郎・纐纈雄三. 資料:マルコフ連鎖モンテカルロ法を用いたベイズ推定による夏期の21日齢子豚体重の予測.日本養豚学会)53:105-110.

 

<2015>

 

25.  Iida, R. and Koketsu, Y. 2015. Number of pigs born alive in parity 1 sows associated with lifetime performance and removal hazard in high- or low-performing herds in Japan. Preventive Veterinary Medicine. 121:108-114.

 

26.  Iida, R. Koketsu, Y. and Piñeiro, C. 2015. High lifetime and reproductive performance of sows in southern European Union commercial farms can be predicted by high numbers of pigs born alive at parity one. Journal of Animal Science. 93:2501-2508.

 

27.  Iida, R. and Koketsu, Y. 2015. Climatic factors and risk factors associated with abortion occurrences in Japanese commercial pig herds. Animal Reproduction Science. 157:78-86.

 

28.  Usui, S., Yasuda, H. and Koketsu, Y. 2015. Characteristics of dogs having diabetes mellitus; analysis of data from private Japanese veterinary clinics. Veterinary Medicine and Animal Sciences. 2015; 3:5. Online journal. http://dx.doi.org/10.7243/2054-3425-3-5.

 

29.  Usui, S., Yasuda, H. and Koketsu, Y.2015. Effect of dog body condition score on lipoprotein cholesterol and triglyceride concentrations; effect of recommended fasting duration on sample concentrations. Journal of Veterinary Medical Science. 77:1063-1069.

 

30.  Usui, S. and Koketsu, Y. 2015. Lifetime reproductive performance and survival of English Berkshire female pigs raised in commercial herds in subtropical Japan. Tropical Animal Health and Production. 47:479-482.

 

31.  Iida, R., Kaneko, M. and Koketsu, Y. 2015. Low retention rate by parity 3 associated with gilt development, reproductive performance and culling pattern of female pigs in commercial swine herd. Journal of Jpn. Swine Science. 52:8-16.

 

32.  Koketsu, Y., Iida, R., Polson, D. and Dial, G. 2015. A survey on farrowing space utilization efficiency on commercial swine farms. Jpn. J. Swine Science. 52 (4):153-160.

 

<2014>

 

33.  Iida, R. and Koketsu, Y. 2014.Interactions between pre- or post-service climatic factors, parity, weaning-to-first-mating interval for total number of pigs born in female pigs serviced during hot and humid or cold seasons. Journal of Animal Science. 92:2014-7636.

 

34.  Iida, R. and Koketsu, Y. 2014. Climatic factors associated with peripartum pig deaths during hot and humid or cold seasons. Preventive Veterinary Medicine. 115:166-172.

 

35.  Ichikawa, H. Usii, S., Kaneko, M. and Koketsu, Y. 2014.Characteristics of production efficiency and management procedures operated by large swine breeding herds in Japan. Journal of Jpn. Swine Science. 51 (2), 54-62.

 

36.  Usui, S., Mizoguchi, Y., Yasuda, H., Arai, N. and Koketsu, Y. 2014. Dog age and breeds associated with high plasma cholesterol and triglyceride concentrations. Journal of Veterinary Medical Science. 76:269-272.

 

37.  Usui, S., Kaneko, M. Ruen, P. and Koketsu, Y. 2014. Assessment of commercial genotype female lines for number of pigs born alive in a U.S.A. production system. Agriculture Research Bulletin Meiji University 64:41-47.

 

38.  Usui, S. Nanjo, K. and Koketsu, Y. Feeding management for pre-farrowing female pigs and subsequent performance in commercial herds. Meiji University Agriculture Research Bulletin. Meiji. 64:53-58.

 

39.  Yasuda, H., Usui, S., Koketsu, Y. 2014. De-sexing is associated with lipoprotein cholesterol and triglyceride concentrations in dogs. Jpn. J. Vet. Clin. Pathol. 12:11-17. 安田英巳・薄井 志保・纐纈雄三. 2014. イヌの中性化とリポプロテインコレステロール値および­中性脂肪値との関連性. 獣医臨床病理学. 12:11-17.

 

40.  Usui, S., Nouguchi, Y. Kawakami, D. Maruyama, K. and Koketsu, Y. 2014. Associations between lactational rectal temperature, feed disappearance and reproductive performance of sows. Kanto Anim. Sci. J. 65:1-10. (薄井 志保・納口 結貴・川上 弾・丸山 恵市・纐纈 雄三. 母豚における授乳期直腸温度と飼料摂取量および繁殖成績の関連性.) 関東畜産学会報. 65:1-10.

 

41.  Usui, S. Kakinuma, F. and Koketsu, Y. 2014. A comparison for sternal lying and lateral lying types by parity and season and repeatability and an association between postural behaviors and reproductive performance of pregnant pigs on a commercial farm. Meiji University Agriculture Research Bulletin. 63:37-43.薄井志保・柿沼文紀・纐纈雄三. 妊娠豚の腹臥と側臥姿勢行動の反復率および産次と季節間の比較と繁殖成績との関連性. 明治大学農学部研究報告63:37-43.

 

<2013>

 

42.  Iida R. and Koketsu, Y. 2013. Delayed age of gilts at first mating associated with photoperiod and number of hot days in humid subtropical areas. Animal Reproduction Science. 139:115-120.

   

43.  Iida R. and Y. Koketsu, Y. 2013. Climate factors associated with female pigs returning to service during summer in Japanese commercial breeding herds. Theriogenology. 80:487-493.

 

44.  Usui, S. and Koketsu, Y. 2013. Increased number of pigs weaned from pigs born alive of parity 1 sows and subsequent reproductive performance in Japanese commercial breeding herds. Journal of Veterinary Epidemiology. 17:36-43.

 

45.  Yasuda, H., Matsuzaki, T., Arai, N., Iida, R. and Koketsu, Y. 2013. Profiles of lipoprotein cholesterol and triglyceride concentrations in periparturient cows. Journal of Veterinary Epidemiology. 17:52-56. 安田英巳・松崎勉・荒井延明・飯田涼介・纐纈雄三. 2013. 分娩前後の乳牛のリポタンパク質中のコレステロール値とトリグリセライド値のプロファイル. 獣医疫学雑誌17:52-56.

 

46.   Kaneko, M. Iida, R. and Koketsu, Y., 2013. A questionnaire survey about the mating schedules of sows in commercial swine herds in Japan using a recording system. Journal of Veterinary Epidemiology. 17:117-124.

 

47.  Iida, R. and Koketsu, Y. 2013. Quantitative associations between climate data and weaning-to-first-mating interval or adjusted 21-day litter weights during summer in Japanese swine breeding herds. Livestock Science. 152:253-260.

 

48.  Kaneko, M. and Koketsu, Y., 2013. Herd management procedures and factors associated with low farrowing rate of female pigs in Japanese commercial herds. Preventive Veterinary Medicine. 109:69-75.

 

<2012>

 

49.  Kaneko, M and Koketsu, Y. 2012. Gilt development and mating in commercial swine herds with varying reproductive performance. Theriogenology. 77, 840846.

 

50.  Sasaki Y. and Koketsu, Y. 2012. A herd management survey on culling guidelines and actual culling practices in three herd groups based on reproductive productivity in Japan. Journal of Animal Science. 90:1995-2002.

 

51.   Ichikawa, H. and Koketsu, Y. 2012. Standard operating procedures for farrowing and lactating sows with piglets in Japanese commercial herds. Journal of Veterinary Medical Science. 74:1423-1428.

 

52.   Kaneko, M., Takanashi, A. and Koketsu, Y. 2012. Low Lifetime Efficiency Sows in Low Parity Were Culled Due to Reproductive Failure in Commercial Herds. Journal of Veterinary Epidemiology.16: 46-51.

 

53.   Sasaki, Y., McGartt, I. and Koketsu, Y. 2012. Evaluation of Lifetime Economic Returns of Sow by Parity at Culling in Commercial Breeding Herds. Journal of Veterinary Epidemiology.16: 37-45.

 

54.  Arai, N., Usui, S. and Koketsu, Y. 2012. Age of Onset and Clinical Signs in Canine Atopic Dermatitis. Journal of Veterinary Epidemiology. (荒井延明・薄井志保・纐纈雄三. イヌのアトピー性皮膚炎の臨床症状と発症年齢の記述疫学.日本獣医疫学会雑誌) 16:126-134

 

55.   Sasaki, Y., Takemura, Y. and Koketsu, Y. 2012. An assessment of four components of sow lifetime nonproductive days and lifetime performance on high-, intermediate- and low-performance commercial breeding farms. Journal of Veterinary Epidemiology. 16:135-141

 

56.   Iida, R. Ogi, A. and Koketsu, Y. 2013. Abortion risk of female pigs and the subsequent reproductive performance in commercial breeding herds. (飯田涼介・扇喜あやな・纐纈雄三. 国内農場における繁殖雌豚の流産発生リスクとその後の繁殖成績) 明治大学農学部研究報告. 61:65-70

 

57.  Kaneko, M. Maekawa, A., Matsuda, T. and Koketsu, Y. 2012. An association between feed intake in farrowing barns and reproductive performance for Landrace and Large White female pigs.(金子麻衣・前川綾香・松田哲哉・纐纈雄三.61:52-63.ランドレース種と大ヨークシャー種における妊娠末期と授乳期の飼料摂取量と授乳・繁殖成績との関連性) 明治大学農学部研究報告.61:52-63

 

<2011>

 

58.  Enokida, M., Sasaki, Y., Hoshino, Y., Saito, H. and Koketsu, Y. 2011. Claw lesions in lactating sows were associated with culling risk and behavior, but not with reproductive performance on commercial farms. Livestock Science. 136256-261.

 

59.  Saito, H., Sasaki, Y., and Koketsu, Y. 2011. Age at first mating and lifetime efficiency in commercial herds. Journal of Veterinary Medical Science. 73:555-559.

 

60.  Sasaki, Y., Saito, H., Shimomura, A. and Koketsu, Y. 2011. Consecutive reproductive performance after parity 2 and lifetime performance in sows that had reduced pigs born alive from parity 1 to 2 in Japanese commercial herds. Livestock Science. 139:252-257.

 

61.  Takanashi, A. and Koketsu, Y. 2011. Factors associated with sows having low-lifetime efficiency in commercial herds. Journal of Veterinary Epidemiology. 15:10-14.

 

62.  Enokida, M. and Koketsu, Y. 2011. Floor slat direction related to severity of superficial claw lesions in gestating pigs, but not reproductive performance or behavior. Journal of Veterinary Epidemiology.15:32-38.

 

63.   Ichikawa, H. and Koketsu, Y. 2011. Farrowing induction practices for periparous sows and reproductive performance in commercial swine herds. Journal of Veterinary Epidemiology. 15:15-21.

 

64.   Sasaki, Y. and Koketsu, Y. 2011. Reproductive profile and lifetime efficiency of female pigs by culling reason in high-performing commercial breeding herds. J. Swine Health and Production. 19 (5): 284-291.

 

65.   Ichikawa, H. and Koketsu, Y. 2011. A comparison between artificial insemination and natural mating for reproductive performance in swine commercial herds. Journal of Veterinary Epidemiology. In press

 

66.   Takanashi, A., McTaggart, I.  and Koketsu, Y. 2011. Swine Herds Achieve High Performance by Culling Low Lifetime Efficiency Sows in Early Parity. Journal of Veterinary Medical Science. 73(11):1405-1409.

 

67.  Ichikawa, H. Kakinuma, F., and Koketsu, Y. 2011. An occurrence of vacuum chewing and reproductive performance of pregnant pigs on a commercial farm.市川大樹・柿沼文紀・纐纈雄三.生産農場における妊娠豚の偽咀嚼の発生と繁殖成績との関連性. 関東畜産学会.61:34-41. Kanto Animal Science Journal. 61:34-41.

 

68.  Kaneko, M. Kurose, T. and Koketsu, Y. 2011. Reproductive performance and factors associated with female pigs exhibiting weak estrus in a commercial herd. Meiji University Agriculture Research Bulletin. 61:1-5. 生産農場において見られた発情徴候が微弱な繁殖雌豚の繁殖成績とその関連因子.明治大学農学部研究報告.61:1-5.

 

69.   Takanashi, A., K. Fujimoto, K. and Koketsu, Y. 2011. An association between the reservice interval and farrowing performance of female pigs in Japanese commercial breeding herds. (高梨ありこ・藤本佳那・纐纈雄三. 国内生産農場における繁殖母豚の種付け後不受胎による再種付け間隔と分娩成績の関連性. 関東畜産学会)Kanto Animal Science Journal.62:1-6.

 

<2010>

 

70.  Saito, H., Sasaki, Y. Hoshino and Koketsu, K. 2010. An occurrence of decreased numbers of pigs born alive in parity 2 sows in commercial herds. Livestock Science. 128: 189-192.

 

71.  Sasaki, Y. and Koketsu, Y. 2010. Culling intervals and culling risks in non-return to service and reserviced female pigs in commercial herds. Theriogenology. 73:587-594.

 

72.  Enokida, M., Sasaki, Y., Takai, Y. and Koketsu, Y. 2010. Survivals and risk factors associated with claw lesions of female pigs on a commercial farm. Journal of Veterinary Epidemiology. 14:118-123.

 

73.  Takai, Y. Sasaki, Y. and Koketsu, Y. 2010. Comparisons in financial returns between double and triple matings in first-serviced and reserviced female pigs in commercial herds. Journal of Veterinary Epidemiology. 14:47-54.

 

74.  Sasaki, Y. and Koketsu, Y. 2010. Euthanasia for gilts and sows on Japanese swine farms. Journal of Veterinary Epidemiology. 14:124-129.

 

75.    Koketsu, Y, Sasaki,Y., Ichikawa, H. and Kaneko, K. 2010. Benchmarking in animal agriculture: concepts and applications. Journal of Veterinary Epidemiology. 14:105-117.

 

76.  Takai, Y. Sasaki, Y., and Koketsu, Y. 2010. Comparisons in financial returns between double and triple matings in first-serviced and reserviced female pigs in commercial herds. Journal of Veterinary Epidemiology. 14:47-54.

 

77.  Fujimoto, K., Takanashi, A. and Koketsu, K. An association between farrowing performance and reservice interval of female pigs in the three herd groups based on herd reproductive productivity. Meiji University Agriculture Research Bulletin. 60:7-12藤本佳那・高梨ありこ・纐纈雄三.2010.高生産性農場における雌豚の種付け回数と再種付け間隔及び分娩成績との関連性.明治大学農学部研究報告.60:7-12.

 

78.  Yosuke Sasaki, Keiji Endo and Yuzo Koketsu. 2010. A comparison in behavior between prefarrowing female pigs and lactating sows using on-farm point sampling. Meiji University Agriculture Research Bulletin. 59:61-66.佐々木羊介・遠藤圭二・纐纈雄三. 2010. ポイントサンプリング法を用いた生産農場における妊娠末期豚と授乳豚の行動比較. 明治大学農学部研究報告59:61-66.

 

79.  Ogasawara, A., Enokida, M., and Koketsu, Y. 2010. Mating frequency associated with reproductive performance in first-serviced and reserviced female pigs in commercial herds.小笠原輝・榎田将司・纐纈雄三.2010. 繁殖雌豚の交配回数と農場生産性による分娩成績との関連性. 関東畜産学会.Kanto Animal Science Journal.61:1-8.

 

80.  Sasaki, Y. Tsukahara, T. and Koketsu, Y. 2010. A percentage of sows mated within six days post weaning in four three-month periods in commercial breeding herds that were performing differently. Japanese Society of Farm Animal Veterinary Medicine. 63: 187-190.佐々木羊介・塚原健史・纐纈雄三. 2010.繁殖成績レベルが異なる農場における3ヶ月ごとの離乳後6日以内交配母豚割合.  日本産業動物獣医学会会誌.63:187-190.

 

<2009>

 

81.  Hoshino, Y., Sasaki, Y. and Koketsu, Y. 2009. A high percentage of pigs born dead for sows in high-, intermediate- and low-performing herds.  Journal of Veterinary Medical Science. 71(12): 1579-1583

 

82.  Koketsu, Y. and Sasaki, Y. 2009. Boar culling and mortality in commercial swine herds. Theriogenology. 71, 1186-1191.

 

83.  Takai, Y. and Koketsu, Y. 2009. Double and triple matings associated with reproductive performance in first-serviced and reserviced female pigs in commercial herds. Journal of Veterinary Medical Science. 71: 635-639.

 

84.  Takai, Y. Saito, K., and Koketsu, Y. 2009. Factors associated with a single-mating occurrence in first-
serviced and reserviced female pigs on commercial farms
. Journal of Veterinary Medical Science. 71: 631-634.

 

85.  Hoshino, Y. and Koketsu, Y. 2009. Assessment of post-farrowing performance in sows having a high number of pigs born dead on commercial farms. Livestock Science. 125244-248.

 

86.  Saito, H. and Koketsu, K. 2009. Factor associated with an occurrence of decreased numbers of pigs born alive in parity 2 in sows. Journal of Veterinary Epidemiology. 13:40-45.

 

87.  Takai, Y. and Koketsu, Y. 2009. Double and triple matings associated with reproductive performance in first-serviced and reserviced female pigs in commercial herds. Journal of Veterinary Medical Science. 71: 635-639.

 

88.  Takai, Y. Saito, K., and Koketsu, Y. 2009. Factors associated with a single-mating occurrence in first-
serviced and reserviced female pigs on commercial farms
. Journal of Veterinary Medical Science. 71: 631-634.

 

89.  Hoshino, Y. and Koketsu, Y. 2009. An evaluation of increased lactation length on reproductive efficiency of sows in commercial herds. Journal of Veterinary Medical Science. 71299-303.

 

90.  Koketsu, Y. and Sasaki, Y. 2009. By-parity nonproductive female days in commercial swine herds. Journal of Veterinary Medical Science. 71263-267.

 

91.  Hoshino, Y. Mizoguchi, Y., Sasaki, Y. and Koketsu, Y. 2009. The development of methods for the isolation of DNA and identification of missense variants from hair roots of sows. Meiji University Agriculture Research Bulletin. 59:9-13.星野侑子・溝口康*・佐々木羊介・纐纈雄三. 2009. 繁殖母豚の毛根の付いた体毛からのDNAの抽出法と遺伝子多型の検出法の開発. 明治大学農学部研究報告59(1):9-13.

 

92.  余西竜平・佐々木羊介・纐纈雄三.繁殖雌豚農場における雌豚の淘汰までの日数パターン. 2009. 関東畜産学会報59: 59-64. (Culling intervals and culled reasons in females pigs on commercial breeding farms in Japan. Kanto Animal Science Journal 59: 59-64.)

 

93.  余西竜平・佐々木羊介・纐纈雄三.繁殖雌豚農場における雌豚の淘汰までの日数パターン. 2009. 関東畜産学会報59: 59-64. (Culling intervals and culled reasons in females pigs on commercial breeding farms in Japan. Kanto Animal Science Journal 59: 59-64.)

 

<2008>

 

94.  Sekiguchi, T. and Koketsu, Y. 2008. A field study of the relationships between behavior, lifetime reproductive performance and salivary cortisol in stalled gestating female pigs. Journal of Veterinary Epidemiology.12:99-104.

 

95.  Hoshino, Y. Tanaka, Y. and Koketsu, Y. 2008. Sitting behavior in lactating sows was not related with longevity and lifetime performance. Journal of Veterinary Epidemiology. 12:105-109.

 

96.  Hoshino, Y. and Koketsu, Y. 2008. A repeatability assessment of sows mated 4-6 days after weaning in breeding herds. Animal Reproduction Science. 108:22-28.

 

97.  Sasaki, Y. and Koketsu, Y. 2008. Sows having high lifetime efficiency and high longevity associated with herd productivity in commercial herds. Livestock Science 118:140-146.

 

98.  Sasaki, Y. and Koketsu, Y. 2008. Mortality, death interval, survivals, and herd risk factors for female pigs in commercial breeding herds. Journal of Animal Science. 86: 3159-3165.

 

99.  Takai, Y., Tanaka, Y. and Koketsu, Y. 2008. A field study of relationships between salivary progesterone concentrations, backfat thickness, and reproductive performance in sows weaned one litter and nursed sows. Journal of Veterinary Epidemiology 12: 36-42.

 

100.Takai, Y. and Koketsu, Y. 2008. Number of services and the reservice intervals in relation to suboptimal reproductive performance in female pigs on commercial farms. Livestock Science. 114:42-47.

 

101.Tanaka, Y. and Koketsu, Y. 2008. A survey of reproductive performance and growth performance of pigs on commercial farrow-to-finish swine farms. Journal of Veterinary Epidemiology. 11(1):18-22.

 

102.Tanaka, Y. and Koketsu, Y. 2008. Lactational performance improving postweaning reproductive performance and lifetime performance on commercial farms. Journal of Veterinary Medical Science. 70:71-75.

 

103.Koketsu, Y. 2008. Five-year trends in female pig mortality on commercial breeding farms in Japan. Journal of Veterinary Medical Science. 70:25-25.

 

104.田中祐樹・高井康孝・星野侑子・佐々木羊介・纐纈雄三. 2008.大規模生産農場における授乳母豚の24時間中の昼と夜間の授乳・姿勢・摂食行動の比較. 関東畜産学会5871-76. (Tanaka, Y., Takai, Y., Hoshino, Y., Sasaki, Y., and Koketsu, Y. 2008. Comparisons of behaviors in lactating sows between daytime and nighttime during 24 hours on a large commercial farm. Kanto Animal Science Journal5871-76.).

 

105.佐々木羊介・余西竜平・纐纈雄三.2008.国内繁殖雌豚農場における雌豚の死亡までの日数とパターン. 関東畜産学会報. 59: 14-21. ( Sasaki, Y., Yonishi, R. and Koketsu, Y. 2008.Death intervals in female pigs on commercial breeding farms in Japan) 59: 14-21.

 

106.澤田賢・佐々木羊介・纐纈雄三.2008. 繁殖雌豚の妊娠期と授乳期における背脂肪厚の測定値と繁殖成績との関連性.関東畜産学会報.(Sawada, K., Sasaki, Y. and Koketsu, Y. 2008. A relationship between backfat thickness and reproductive performance on a commercial swine farm) 59: 22-28.

 

107.佐々羊介・大峰広宣・纐纈雄三. 2008. 妊娠末期豚と授乳豚の姿勢と常同行動と繁殖成績との関連性. 明治大学農学部研究報告 58:13-18.(Sasaki, Y., Oomine, H. and Koketsu, Y. 2008.A relationship between behaviors and reproductive performance in prefarrowing female pigs and lactation sows. Meiji University Agriculture Research Bulletin. 58:13-18.)

 

<2007>

 

108.Koketsu, Y. 2007. Longevity and efficiency associated with age structures of female pigs and herd management in commercial breeding herds. Journal of Animal Science. 85:1086-1091.

 

109.Takai, Y. and Koketsu, Y. 2007. Identification of a female-pig profile associated with lower productivity on commercial farms. Theriogenology 68(1):87-92.

 

110.Sasaki, Y. and Koketsu, Y. 2007.Variability and repeatability in gestation length related with litter performances in female pigs on commercial farms. Theriogenology. 68(2):123-127.

 

111.Koketsu, Y. 2007. High-performing swine herds improved reproductive performance differently from ordinary herds for five years. Journal of Animal Science. 85:3110-3115.

 

112.Tanaka, Y. and Koketsu, Y. 2007. A field study on associations of suckling, eating, and postural behaviors with reproductive performance in lactating sows. Journal of Veterinary Medical Science. 69:1229-1233..

 

113.Koketsu, Y. 2007. Female pig longevity and herd-management factors. Journal of Veterinary Epidemiology 10:73-77.

 

114.纐纈雄三・田中祐樹・関口知典. 2007.行動テストにおける肥育豚の反応および唾液中コルチゾール濃度, 明治大学農学部研究報告57:19-24.(Koketsu, Y., Tanaka, Y., Sekiguchi, T. 2007. Responses to behavioral tests and concentrations of salivary cortisol in growing pigs. Meiji Agriculture Research Bulletin 57:19-24.)

 

115.纐纈雄三・渡邉浩一郎・田中祐樹. 2007生産農場におけるF1交雑種とランドレース種の妊娠豚の姿勢・行動と繁殖成績. 関東畜産学会58:25-31. (Koketsu, Y., Watanabe, K., and Tanaka, Y. 2007. Behaviors and reproductive performance in F1 crossbred and Landrace female pigs on a commercial swine farm. 58:25-31.).

 

116.関口知典・纐纈雄三.2007.赤外線放射カメラを用いた繁殖雌豚の皮膚表面温度および豚舎内表面温度と繁殖成績との関連性.明治大学農学部研究報告57:85-92.Sekiguchi, T. and Koketsu, Y. 2007. Relationships between the Body Surface Temperature of Breeding Female Pigs Measured by Use of Infrared Thermography, the Ambient Temperature and Reproductive Performance, Meiji Agriculture Research Bulletin. 57:85-92.

 

117.Koketsu, Y., Oodate, M. 2007. Valuation of young consumers for welfare friendly livestock and poultry products. Kanto Animal Science Journal. 纐纈雄三・大館美佳.動物介在教育による学生消費者の動物福祉を考慮された畜産物への支払い意思金額の変化.関東畜産学会57(2):39-48.

 

<2006>

 

118.Koketsu, Y., Takenobu, S., and Nakamura, R. 2006. Preweaning mortality risks and recorded causes of death associated with production factors in swine breeding herds. Journal of Veterinary Medical Science 68: 821-826.

 

119.Koketsu, Y. 2006. Herd-management factors associated with nonproductive days by breeding-female pigs on commercial farms in Japan.  Journal of Veterinary Epidemiology 9, 79-83.

 

120.Koketsu, Y. 2006. Reproductive efficiency and herd-management factors in swine breeding herds. Meiji Agriculture Research Bulletin. 55, 55-60.

 

121.纐纈雄三・酒井芙優子. 2006. 農学部学生における食に対する安全・安心意識の現状と動物教育ファームでの教育による認識の変化. 明治大学農学部研究報告56(2):51-57(Koketsu, Y. and Sakai, F. Influence of animal assisted education using an education farm on perceptions and opinions regarding food safety in agricultural students, Meiji Agriculture Research Bulletin).

 

122.纐纈雄三・松井明日香・門間俊・関口知典. 2006. 養豚教育ファームでの活動が都市生活を営む農学部学生の心理・生理と養豚への理解に及ぼす影響(Influence of the Education using a Swine Education Farm on Perceptions Regarding Pig Production, Psychological and Physiological Measures of Agricultural Students Living in Urban Areas). 日本養豚学会誌, 43:1-10.

 

<2005>

 

123.Koketsu, Y. 2005. Six component intervals of nonproductive days in breeding-female pigs on commercial farms in Japan.  Journal of Animal Science, 83: 1406-1412.

 

124.Koketsu, Y. 2005. Within-farm variability in age structure of breeding-female pigs and reproductive performance on commercial swine breeding farms. Theriogenology. 631256-1265.

 

<2004>

 

125.Nagai, K., Sato, R., and Koketsu, Y. 2004. Influence of animal assisted activity on perceptions, mood profiles and physiological measurements in agricultural students living in urban areas. Meiji Agriculture Research Bulletin. 140: 9-23. (永井久美子・佐藤塁・纐纈雄三.滞在型の動物介在教育が都市生活を営む農学部学生の農業動物への認識と気分・生理に及ぼす影響)

 

126.Abe, S. and Koketsu, Y. 2004. Financial benchmarking in Japanese swine farm enterprises. Journal of Veterinary Epidemiology 8, 21-28.

 

127.Sekiguchi, T. and Koketsu, Y. 2004. Behaviors in stalled pregnant females and reproductive performance on a commercial swine farm. Journal of Animal Science. 82:1482-1487.

 

128.Urabe, K. and Koketsu, Y. 2004. Development of environment enrichment devices for growing pigs Kanto J. Anim. Sci. 541):1-10.

 

<2003>

 

129.Koketsu, Y. 2003. Re-serviced Females on Commercial Swine Breeding Farms.  Journal of Veterinary Medical Science 65 (12): 1287-1291.

 

130.Koketsu, Y. 2003. Factors associated with farrowing failure occurrences in reserviced females on commercial swine farms. Journal of Veterinary Epidemiology. 7:23-29.

 

131.Koketsu, Y and Kameyama, T. 2003. Consciousness of farm animal welfare and necessity for an educational animal farm in young generations. Kanto J. Anim. Sci. 531):10-22.

 

132.Matsumoto, K. and Koketsu, Y. 2003. Reproductive performance and behavior pattern in breeding females on British Berkshire farm. Japanese Journal of Swine Science. 40(1):21-25.

 

<2002>

 

133.Koketsu, Y. and Nomura, K. 2002. Meat preferences and life style of young consumers in the Kanto urban area using an internet system. Kanto J. Anim. Sci. 521):916.

 

134.Kondo, T. and Koketsu, Y. 2002. A survey on farm production and management priority in Japanese pork producers. Japanese Journal of Swine Science. 39 (4):230-237.

 

135.Koketsu, Y. 2002. Reproductive productivity measurements in Japanese swine breeding herds. Journal of Veterinary Medical Science 64(3):195-198.

 

136.Koketsu, Y and G. D. Dial. 2002. Administration of prostaglandin F2" after farrowing alters the association between lactation length and subsequent litter size in mid- or older parity sows. Theriogenology. 572):837843

 

<2001>

<2000>

 

137.Koketsu, Y. 2000. Retrospective analysis of trends and production factors associated with sow mortality on swine breeding farms in the U.S.A. Preventive Veterinary Medicine. 46:249-256.

 

138.Koketsu, Y. 2000. Productivity characteristics of high-performing swine farms. Journal of American Veterinary Medical Association 215(2):376-379.

 

139.Yang H., J. E. Pettigrew, L. J. Johnston, G. C. Shurson, J. E. Wheaton, M. White, Y. Koketsu, A. Sower, and J. Rathmacher. 2000. Effects of dietary lysine intake during lactation on blood metabolites, hormones, and reproductive performance in primiparous sows. Journal of Animal Science 78:1001-1009.

 

<1999>

 

140.Koketsu, Y.1999. Assessment of sows mated during the low productive period after weaning on pigs farms using early weaning: a field study. Theriogenology. 51(8):1525-1532.

 

141.Koketsu, Y., H. Takahashi and K. Akachi. 1999. Longevity, lifetime pig production, and age at first mating in a cohort of gilts over 6 years. Journal of Veterinary Medical Science 61(42):1001-1005.

 

142.Koketsu, Y., C. Duangkaew, G. D. Dial and D. Reeves. 1999. Within-farm variability in number of females mated per week during one-year period and breeding herd productivity on swine farms. Journal of American Veterinary Medical Association  214(4):520-524.

 

143.Koketsu, Y.1999. Influence of cumulative feed intake during early and mid-lactation on luteinizing hormone secretion and weaning-to-estrus interval in primiparous sows. Journal of Veterinary Medical Science 61(42):325-329.

 

<1998>

 

144.Koketsu, Y. and G. D. Dial. 1998. Interactions between the associations of parity, lactation length, and weaning-to-conception interval with subsequent litter size in swine herds using early weaning. Preventive Veterinary Medicine 37:113-120.

 

145.Koketsu, Y., G. D. Dial, J. E. Pettigrew, J-L Xue, H. Yang and T. Lucia. 1998. Influence of lactation feed intake on the relationship between lactation length and reproductive performance, circulating levels of glucose, insulin and LH in primiparous sows. Animal Reproduction Science, 52(2):153-163.

 

146.King, V. L., Y. Koketsu, D. Reeves, JL. Xue, G. D. Dial. 1998. Management factors associated with swine breeding herd productivity in the USA. Preventive Veterinary Medicine 35:255-264.

 

147.Xue, J-L., T. Lucia, Y. Koketsu, G. D. Dial, and W. E. Marsh. 1998. Effect of mating frequency and weaning-to-mating interval on sow reproductive performance. Swine Health and Production 6(4):157-162.

 

148.Koketsu, Y and G. D. Dial. 1998. Factors associated with average pig weight at weaning on farms using early weaning. Animal Science 68:247-253.

 

<1997>

 

149.Koketsu, Y and G. D. Dial. 1997. Quantitative relationships between reproductive performance in sows and its risk factors. Pig News and Information 18(2):47N-52N.

 

150.Koketsu, Y. and G. D. Dial. 1997. Factors associated with prolonged weaning-to-mating interval among sows on farms that wean early. Journal of American Veterinary Medical Association 211:894-898.

 

151.Koketsu, Y., G. D. Dial and V. L. King. 1997. Influence of various factors on farrowing rate on farms using early weaning. Journal of Animal Science 75(10):2580-2587.

 

152.Xue, JL. Y. Koketsu, G. D. Dial, J. E. Pettigrew, and A. F. Sower. 1997. Glucose tolerance, leuteinizing hormone release, and reproductive performance of first-litter sows fed two levels of energy diets during gestation. Journal of Animal Science 75:1845-1852.

 

153.Koketsu, Y., G. D. Dial, J. E. Pettigrew, and V. L. King. 1997. Influence of feed intake during individual weeks of lactation on reproductive performance of sows. Livestock Production Science. 49:217-225.

 

154.Koketsu, Y. and G. D. Dial. 1997. Factors influencing the post weaning reproductive performance of sows on commercial farms. Theriogenology. 47(7):1445-1461.

 

155.Koketsu, Y., G. D. Dial, and V. L. King. 1997. Returns to service after mating and removal of sows for reproductive reasons from commercial swine farms. Theriogenology. 47(7):1347-1363.

 

<1996>

 

156.Koketsu, Y., G. D. Dial, J. E. Pettigrew, and V. L. King. 1996. Feed intake pattern during lactation and subsequent reproductive performance of sows. Journal of Animal Science 74(12):2875-2884.

 

157.Koketsu, Y., G. D. Dial, J. E. Pettigrew, W. E. Marsh, and V. L. King. 1996. Characterization of feed intake patterns during lactation on commercial swine herds. Journal of Animal Science 74(6):1202-1210.

 

158.Koketsu, Y., G. D. Dial, J. E. Pettigrew, W. E. Marsh, and V. L. King. 1996. Influence of imposed feed intake patterns during lactation on reproductive performance, circulating levels of glucose, insulin and luteinizing hormone in primiparous sows. Journal of Animal Science 74(5):1036-1046.

 

159.Koketsu, Y., J. E. Pettigrew, G. D. Dial, and V. L. King. 1996. The influence of nutrient intake on biological measures of breeding herd productivity. Swine Health and Production. 4(2):85-93.

 

<1995>

<1994>

<1993>

<1992>

 

160.Tokach, M. D., J. E. Pettigrew, G. D. Dial, J. E. Wheaton, B. A. Crooker, and Y. Koketsu. 1992. Influence of glucose infusion on luteinizing hormone secretion in the energy-restricted primiparous, lactating sows. Journal of Animal Science 70(9):2202-2206.