Two different feeding levels during late gestation in gilts and sows under commercial conditions: impact on piglet birth weight and female reproductive performance

Journal of Animal Science
André L MallmannF P Bortolozzo

Abstract

The increase in the litter size in past decades has caused reduction in the individual piglet birth weight. Therefore, nutritional strategies employed in the last third of gestation in order to improve the piglet birth weight have been studied. This study aimed to evaluate the effects of 2 different feeding levels (1.8 and 2.2 kg/d) in the last third of gestation on the piglet birth weight and the female reproductive performance. A total of 407 females were fed on a diet based on corn-soybean meal (3.25 Mcal ME per kg and 0.65% standardized ileal digestible lysine) from day 90 of gestation until farrowing. The females were weighed on day 90 and day 112 of gestation, and at weaning. Born alive and stillborn piglets were weighed within 12 h of birth. The lactation feed intake and the litter growth rate were measured in a randomly selected subsample of 53 sows from each treatment. The data were analyzed using the generalized linear mixed models, considering the females as the experimental unit. Parity, treatment, and their interaction were analyzed for all responses. The females fed on 2.2 kg/d of diet from day 90 to day 112 exhibited greater body weight gain compared to the females fed on 1.8 kg/d (P < 0.001). No evidence of the ...Continue Reading

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Citations

Dec 11, 2019·Animals : an Open Access Journal From MDPI·Laura MartíJavier Álvarez-Rodríguez
Feb 13, 2021·Animal : an International Journal of Animal Bioscience·S V FerreiraD O Fontes
Jan 29, 2021·Animals : an Open Access Journal From MDPI·Laia BlaviJosé Francisco Pérez
Jan 13, 2021·Porcine Health Management·Joe CrenshawJavier Polo
Apr 17, 2021·Tropical Animal Health and Production·Rafael Dal Forno GianluppiFernando Pandolfo Bortolozzo

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