| Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds Y Koketsu, S Tani, R Iida Porcine health management 3, 1-10, 2017 | 279 | 2017 |
| High lifetime and reproductive performance of sows on southern European Union commercial farms can be predicted by high numbers of pigs born alive in parity one R Iida, C Piñeiro, Y Koketsu Journal of Animal Science 93 (5), 2501-2508, 2015 | 52 | 2015 |
| Sow housing associated with reproductive performance in breeding herds Y Koketsu, R Iida Molecular reproduction and development 84 (9), 979-986, 2017 | 46 | 2017 |
| Interactions between pre-or postservice climatic factors, parity, and weaning-to-first-mating interval for total number of pigs born of female pigs serviced during hot and … R Iida, Y Koketsu Journal of Animal Science 92 (9), 4180-4188, 2014 | 40 | 2014 |
| Farm data analysis for lifetime performance components of sows and their predictors in breeding herds Y Koketsu, R Iida Porcine Health Management 6, 1-12, 2020 | 38 | 2020 |
| Climatic factors associated with peripartum pig deaths during hot and humid or cold seasons R Iida, Y Koketsu Preventive veterinary medicine 115 (3-4), 166-172, 2014 | 37 | 2014 |
| A 10-year trend in piglet pre-weaning mortality in breeding herds associated with sow herd size and number of piglets born alive Y Koketsu, R Iida, C Piñeiro Porcine Health Management 7, 1-8, 2021 | 35 | 2021 |
| Number of pigs born alive in parity 1 sows associated with lifetime performance and removal hazard in high-or low-performing herds in Japan R Iida, Y Koketsu Preventive Veterinary Medicine 121 (1-2), 108-114, 2015 | 26 | 2015 |
| Incidences and risk factors for prolapse removal in Spanish sow herds R Iida, C Piñeiro, Y Koketsu Preventive veterinary medicine 163, 79-86, 2019 | 24 | 2019 |
| Interactions between climatic and production factors on returns of female pigs to service during summer in Japanese commercial breeding herds R Iida, Y Koketsu Theriogenology 80 (5), 487-493, 2013 | 24 | 2013 |
| Herd management procedures and factors associated with low farrowing rate of female pigs in Japanese commercial herds M Kaneko, R Iida, Y Koketsu Preventive Veterinary Medicine 109 (1-2), 69-75, 2013 | 22 | 2013 |
| Increased age at first-mating interacting with herd size or herd productivity decreases longevity and lifetime reproductive efficiency of sows in breeding herds Y Koketsu, R Iida, C Piñeiro Porcine Health Management 6, 1-10, 2020 | 20 | 2020 |
| Quantitative associations between outdoor climate data and weaning-to-first-mating interval or adjusted 21-day litter weights during summer in Japanese swine breeding herds R Iida, Y Koketsu Livestock Science 152 (2-3), 253-260, 2013 | 20 | 2013 |
| Abortion occurrence, repeatability and factors associated with abortions in female pigs in commercial herds R Iida, C Piñeiro, Y Koketsu Livestock Science 185, 131-135, 2016 | 18 | 2016 |
| Climatic factors associated with abortion occurrences in Japanese commercial pig herds R Iida, Y Koketsu Animal reproduction science 157, 78-86, 2015 | 18 | 2015 |
| Lower farrowing rate in female pigs associated with higher outdoor temperatures in humid subtropical and continental climate zones in Japan R Iida, Y Koketsu Animal Reproduction (AR) 13 (2), 63-68, 2018 | 16 | 2018 |
| Removal of sows in Spanish breeding herds due to lameness: incidence, related factors and reproductive performance of removed sows R Iida, C Piñeiro, Y Koketsu Preventive veterinary medicine 179, 105002, 2020 | 13 | 2020 |
| Timing and temperature thresholds of heat stress effects on fertility performance of different parity sows in Spanish herds R Iida, C Piñeiro, Y Koketsu Journal of animal science 99 (7), skab173, 2021 | 11 | 2021 |
| Recurrence patterns and lifetime performance of parity 1 sows in breeding herds with different weaning-to-first-mating intervals Y Yatabe, R Iida, C Piñeiro, Y Koketsu Porcine Health Management 5, 1-10, 2019 | 10 | 2019 |
| Behavior, displacement and pregnancy loss in pigs under an electronic sow feeder R Iida, C Piñeiro, Y Koketsu J. Agric. Sci 9 (12), 43, 2017 | 10 | 2017 |
