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- W2045355965 abstract "The decreasing longevity in female pigs(females)was a serious problem in sustaining animal resources in the swine industry. The main objective of this study was to identify herd management factors associated with female longevity on commercial farms. A database containing production measurements was created by abstracting the data files of 123 farms that participated in the PigCHAMP data-share program in Japan. Parity at culling was used as a prime measurement of female longevity. A model was built to assess the association between herd management factors and parity at culling. The mean parity at culling was 4.70 (SD = 0.94). In regression analysis using backward elimination with a centering technique, higher percentage of multiple matings, higher percentage of reserviced females, higher farrowing risk, and lower culling rate were found to be the herd management factors that were associated with higher parity at culling(P < 0.05). Lactation length, gilt pool size, herd size, and replacement rate were not associated with parity at culling(P > 0.10). It is recommended that producers change their management systems to increase the percentages of multiple matings, the percentage of reserviced females, and the farrowing risk, and to decrease the culling rate in order to improve female longevity." @default.
- W2045355965 created "2016-06-24" @default.
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- W2045355965 date "2006-01-01" @default.
- W2045355965 modified "2023-09-26" @default.
- W2045355965 title "Female Pig Longevity and Herd Management Factors on Commercial Breeding Farms" @default.
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- W2045355965 doi "https://doi.org/10.2743/jve.10.73" @default.
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