学会発表


2017年

Characteristics of high and low prolific sows on high-performing Spanish farms

Tani, S. Pineiro, C. and Koketsu, Y. The European Federation of Animal Science, Proc.Talin, Estonia. Aug. 25, 2017.


Culling risks for served females and farrowed sows at consecutive parities in commercial herds

Tani, S. Pineiro, C. and Koketsu, Y. The European Federation of Animal Science, Proc.Talin, Estonia. Aug. 25, 2017.


Productivity of both high and low prolific sows on high-performing farms is greater than those on low-performing farms

Tani, S. Pineiro, C. and Koketsu, Y. International Conference on Pig Reproduction, Proc.Columbia, Missouri. Jun. 12, 2017.


Mortality and survival probability of breeding-female pigs in southern European commercial herds

Tani, S. Pineiro, C. and Koketsu, Y. American Society of Animal Science, Proc.Omaha, Nebraska. Mar. 9, 2017.


2016年

Three-level mixed-effects model analysis of female pig reproductive performance on commercial breeding-farms: superior performance based on higher farrowing rates and more pigs born alive

Tani, S. Pineiro, C. and Koketsu, Y. Conference on Experimental Design and Analysis, Proc. Taipei, Taiwan. Dec. 15, 2016.


Mortality risks and survival probability of breeding-female pigs in southern European commercial herds

Tani, S. Pineiro, C. and Koketsu, Y. Federation of Asian Veterinary Associations Congress, Proc. Ho Chi Minh, VietNam. Sep. 8, 2016.


Third re-service occurrences of female pigs on southern EU commercial farms.

Tani, S. Pineiro, C. and Koketsu, Y. Federation of Asian Veterinary Associations Congress, Proc. Ho Chi Minh, VietNam. Sep. 8, 2016.


Benchmarking reproductive performance and lifetime performance of female pigs on high-performing farms in Southern Europe.

Tani, S. Pineiro, C. and Koketsu, Y. International Pig Veterinary Society Congress, Proc. Dublin, Ireland. 559. Jun. 7, 2016.


Characteristics of repeat-breeding female pigs on southern EU commercial farms.

Tani, S. Pineiro, C. and Koketsu, Y. International Pig Veterinary Society Congress, Proc. Dublin, Ireland. 557. Jun. 7, 2016.


Characteristics of newspaper and google searched articles about porcine epidemic diarrhea compared to dengue fever.

Tani, S. and Koketsu, Y. International Pig Veterinary Society Congress, Proc. Dublin, Ireland. 555. Jun. 7, 2016.


2015年

Repetition patterns of regular, irregular and late returns to service of female pigs on southern european commercial farms, and their longevity.

Tani, S. Pineiro, C. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 94: 1924-1932. Sep. 16, 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.

Iida, R., Tani, S. and Koketsu, Y. American Society of Animal Science, Proc.Orland, Florida. Jul. 15, 2015.


Climatic factors associated with abortion occurrences in Japanese commercial pig herds.

Iida, R., Tani, S. and Koketsu, Y. American Society of Animal Science, Proc.Orland, Florida. Jul. 15, 2015.


Climatic factors associated with reproductive performance in English Berkshire pigs raised in a subtropical climate region of Japan.

Usui, S. Tani, S. and Koketsu, Y. American Society of Animal Science, Proc.Orland, Florida. Jul. 15, 2015.


2011年

A comparison between replacement gilt supplier groups for reproductive performance and risk of death or euthanasia related to locomotor problems of sows on Japanese commercial farms.

Ishikawa, Y. Enokida, M. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 38: 291. Sep. 18, 2011.


A multi-level analysis using a herd management survey and reproductive data of sows indicates standard operating procedures should consider day postweaning and parity.

Kaneko, M. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 38:289. Sep. 18, 2011.


Standard operating procedures for farrowing and lactating sows with piglets in Japanese commercial herds.

Ichikawa, H and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 38: 279. Sep. 18, 2011.


An assessment of four components of sow lifetime nonproductive days and lifetime performance on high-, intermediate- and low-performance commercial breeding farms.

Sasaki, Y. and Koketsu, Y. 2011. American Society of Animal Science. 88. Supple 3. Mar. 15. 2011.


2010年

Floor slat direction related to severity of superficial claw lesions in gestating pigs, but not reproductive performance or behavior.

Enokida, M. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 37: 191. Sep. 19, 2010.


Low lifetime efficiency sows in commercial herds culled early due to reproductive failure.

Takanashi, A. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 37: 184. Sep. 19, 2010.


Lactation management practices can improve lactational performance of sows in commercial swine herds.

Ichikawa, H and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 37: 185. Sep. 19, 2010.


Evaluation of lifetime economic returns of sow by parity of culled sows in commercial breeding herds.

Sasaki, Y. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 37: 186. Sep. 19, 2010.


A herd management survey and reproductive data indicate how to improve gilt performance in commercial swine herds.

Kaneko, M and Koketsu, Y. 2010. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 37: 182. Sep. 19, 2010.


A 5-year comparison between a selection of swine farms from Japan and USA for reproductive performance.

Koketsu,Y., Morrison, R. B. and Deen, J. 2010. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 37: 183. Sep. 19, 2010.


2009年

Reproductive failure and lifetime efficiency of female pigs by culling reason in commercial breeding herds that were differently performing.

Sasaki, Y. and Koketsu, Y. 2009. Congress of Asian Pig Veterinary Society, Proc. Tsukuba, Japan. 4:174. Oct. 27, 2009.


A field study of the relationship of leg scores with survivability, backfat thickness and behavior in stalled females.

Kaneko, M., Sasaki, Y., Takai, Y. and Koketsu, Y. Congress of Asian Pig Veterinary Society, Proc. Tsukuba, Japan. 4:199. Oct. 27, 2009.


A comparison between artificial insemination and natural mating for reproductive performance in swine commercial herds.

Ichikawa, H and Koketsu, Y. 2009. Congress of Asian Pig Veterinary Society, Proc. Tsukuba, Japan. 4:179. Oct. 27, 2009.


Factors associated with sows having low-lifetime efficiency in commercial herds.

Takanashi, A. and Koketsu, Y. Congress of Asian Pig Veterinary Society, Proc. Tsukuba, Japan. 4: 170. Oct. 27, 2009.


A questionnaire survey about the mating schedules in commercial swine herds in Japan using a recording system.

Kaneko, M. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 36: 207. Sep, 2009.


A comparison between early and late farrowing induction for reproductive performance in commercial swine herds.

Ichikawa, H and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 36: 203. Sep, 2009.


Low-lifetime efficiency sows in high-, intermediate- and low-performing herds.

Takanashi, A. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 36: . Sep, 2009.


Survivals and risk factors associated with claw lesions in female pigs.

Enokida, M. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 36: 208. Sep, 2009.


Lifetime efficiency and longevity of sows based on a difference in the number of pigs born alive between parity 1 and 2 in commercial herds.

Saito, H. and Koketsu, K. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 36: 205. Sep, 2009.


Culling intervals in four stages of reproductive life of first service and reserviced female pigs in commercial herds.

Sasaki, Y. and Koketsu. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 36: 206. Sep, 2009.


2008年

Lifetime efficiency and culling interval in female pigs by culling reasons in breeding herds that were differently performing.

Sasaki, Y. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 35:42. Sep, 2008.


Associations between claw lesions, reproductive performance, longevity, and postural behavior in prefarrowing female pigs and lactating sows on commercial farms.

Enokida, M., Sasaki, Y., Hoshino, Y., Saito, H., Takai, Y. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 35:45. Sep, 2008.


Sitting behavior in lactating sows was not related to longevity and lifetime performance.

1. Hoshino, Y. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 35:43. Sep, 2008.


An association between age at first mating and lifetime reproductive performance in high-performing herds.

Saito, H. and Koketsu, K. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 35:41. Sep, 2008.


Sow performance and factors associated with a percentage of stillborn and mummified piglets at birth in commercial herds.

Hoshino, Y. and Koketsu, Y. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.35:40. Sep, 2008.


2007年

Sow and herd factors associated with death intervals and mortality risks in commercial herds.

Sasaki, Y. and Koketsu, Y. 2007. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.34:42. Sep, 2007.


Sows having high lifetime efficiency and high longevity associated with herd productivity.

Sasaki, Y. and Koketsu, Y. 2007. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.34:41. Sep, 2007.


Impact of increased lactation length on reproductive efficiency of sows in commercial herds using early weaning and conventional weaning.

Hoshino, Y. and Koketsu, Y. 2007. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.34:45. Sep, 2007.


An occurrence of decreased numbers of pigs born alive in parity 2 in sows and in herds for 5 years.

Saito, H. and Koketsu, K. 2007. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.34:40. Sep, 2007.


2006年

A field study of relationships between salivary progesterone concentrations, backfat thickness, and reproductive performance in sows weaned one litter and nursed sows.

Takai, Y., Y. Tanaka, Y. and Koketsu, Y. 2007. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.34:39. Sep, 2007.


Lifetime assessment of sows mated 4 to 6 days after weaning in commercial breeding herds.

Hoshino Y. and Koketsu, Y. J. Anim. Sci. Supple1. 83:186,2006. Sep, 2006.


Variability and repeatability of gestation length across parity associated with reproductive performance in a cohort of gilts on commercial farms.

Sasaki Y. and Koketsu, Y. J. Anim. Sci. Supple1. 83:185,2006. Sep, 2006.


Association of number of services and reservice intervals with reproductive performances in female pigs on commercial farms.

Takai Y. and Koketsu, Y. J. Anim. Sci. Supple1. 83:184,2006. Sep, 2006.


Maximized lactational performance for improving postweaning reproductive performance on commercial farms.

Tanaka, Y. and Koketsu, Y. J. Anim. Sci. Supple1. 83:398,2006. Sep, 2006.


2005年

Opportunity breeding-female pigs for improving herd productivity on commercial farms in Japan.

Takai Y. and Koketsu, Y. 2005. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota. 32:38.


A field study on associations of suckling, eating, and postural behaviors for 24 h with reproductive performance of lactating sows in Japan.

Tanaka, Y. and Koketsu, Y. 2005. Allen D. Leman Swine Conf., Proc. St. Paul, Minnesota.32:37.


2004年

Six component intervals of nonproductive days by mated breeding-female pigs on commercial farms.

Koketsu, Y. 2004. Proc. Conference of Research Workers in Animal Disease. Chicago, Illinois. 85: 113.


Relationships between reproductive and growth measurements on commercial swine farms in Japan.

Tanaka, Y. and Koketsu, Y. 2004. Proc. Conference of Research Workers in Animal Disease. Chicago, Illinois. 85: 89.


Lifetime reproductive performance and behavior by stalled breeding-female pigs on a commercial swine farm.

Sekiguchi, T. and Koketsu, Y. 2004. Proc. Conference of Research Workers in Animal Disease. Chicago, Illinois. 85:89.


Behaviors in stalled pregnant females and reproductive performance on a commercial swine farm.

Sekiguchi, T. and Koketsu, Y. 2003. J. Anim. Sci. Supple1. 80:7.