TY - JOUR
T1 - Relationship between body weight of primiparous sows during late gestation and subsequent reproductive efficiency over six parities
AU - Kim, Jin Soo
AU - Yang, Xiaojian
AU - Baidoo, Samuel K
N1 - Publisher Copyright:
Copyright © 2016 by Asian-Australasian Journal of Animal Sciences.
PY - 2016/6
Y1 - 2016/6
N2 - The present study investigated the impact of parity 1 gilt body weight during late gestation (d 109) on subsequent reproductive performance of sows and performance of suckling pigs. A total of 2,404 farrowing records over 6 parities were divided into six groups on the basis of body weight (190, 200, 210, 220, 230, and 240 kg) at d 109 of gestation of 585 gilts. Significant effects (p< 0.05) of body weight on sow retention rate was noticed, with the 210 kg group having the lowest culling rate and highest total number of piglets born alive over the 6 parities. With increase of body weight, a linear increase (p<0.05) in losses of body weight and backfat during the lactation period of parity 1 and a linear decrease (p<0.05) in backfat loss for parities 4 and 6 were found. Compared with light sows, heavy sows had higher (p<0.05) litter weight at birth for parities 1 and 2 and at weaning in parity 1. Sow weaning-to-estrus interval of sows was not influenced (p>0.05) by body weight. In conclusion, maintaining optimal body weight during gestation would be beneficial to sows and suckling piglets.
AB - The present study investigated the impact of parity 1 gilt body weight during late gestation (d 109) on subsequent reproductive performance of sows and performance of suckling pigs. A total of 2,404 farrowing records over 6 parities were divided into six groups on the basis of body weight (190, 200, 210, 220, 230, and 240 kg) at d 109 of gestation of 585 gilts. Significant effects (p< 0.05) of body weight on sow retention rate was noticed, with the 210 kg group having the lowest culling rate and highest total number of piglets born alive over the 6 parities. With increase of body weight, a linear increase (p<0.05) in losses of body weight and backfat during the lactation period of parity 1 and a linear decrease (p<0.05) in backfat loss for parities 4 and 6 were found. Compared with light sows, heavy sows had higher (p<0.05) litter weight at birth for parities 1 and 2 and at weaning in parity 1. Sow weaning-to-estrus interval of sows was not influenced (p>0.05) by body weight. In conclusion, maintaining optimal body weight during gestation would be beneficial to sows and suckling piglets.
KW - Gestation body weight
KW - Parities
KW - Reproductive efficiency
KW - Sow
UR - http://www.scopus.com/inward/record.url?scp=84968779716&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84968779716&partnerID=8YFLogxK
U2 - 10.5713/ajas.15.0907
DO - 10.5713/ajas.15.0907
M3 - Article
C2 - 26954198
AN - SCOPUS:84968779716
SN - 1011-2367
VL - 29
SP - 768
EP - 774
JO - Asian-Australasian Journal of Animal Sciences
JF - Asian-Australasian Journal of Animal Sciences
IS - 6
ER -