Efecto de la alimentación sobre desempeño reproductivo de la cerda criolla cajamarquina durante los dos primeros ciclos reproductivos.

Abstract

An experiment was conducted to evaluate the effects feeding in Cajamarca Black Creole sows on reproductive performance. Sows (24 nulliparous) were assigned randomly within to 2 treatments and maintained on these treatments for up to 2 reproductive cycles. A Sows group were fed with concentrated feed (CON) and the other group with restaurant food waste (DAR), from 5 months of age, during gestation, lactation and weaning-to-mating interval and were housed either in individual pens. Sows fed DAR had smaller (p< 0.05) weaning litter weight (40.33 vs. 45.72 kg) and had more (p< 0.05) piglets dead in lactation (4.2 vs. 1.7) than sows fed CON. Sows of first parity tended to farrow litters with less weight (born alive, 8.4 vs. 9.3 kg; p< 0.10) and had fewer pigs at weaning (6.7 vs. 7.5; p< 0.10) compared with second parity sows. Body weight of sows weaning sows increase (p< 0.05) in the second reproductive cycle (82.4 vs. 86.0 kg). Sows fed DAR produced fewer (p< 0.05) body weight in mating (85.0 vs. 90,0 kg) and had less body weight at weaning (81.2 vs. 87.2 kg) over 2 reproductive cycles compared with sows fed CON. Sows fed CON had better weaning-to-mating interval (p< 0.05) (7.8 vs. 8.9 d). In conclusion, feeding of DAR decreased litter weight at weaning, body weight and weaning-to-mating interval of sow but did not affect litters size, and generates a greater economic benefit in relation to use of concentrated feed in creoles sow.