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Effects of Maternal Protein Supplementation at Mid-Gestation of Cows on Intake, Digestibility, and Feeding Behavior of the Offspring.
- Source :
-
Animals : an open access journal from MDPI [Animals (Basel)] 2022 Oct 20; Vol. 12 (20). Date of Electronic Publication: 2022 Oct 20. - Publication Year :
- 2022
-
Abstract
- This study aimed to assess the effects of maternal protein supplementation and offspring sex (OS) on the intake parameters of the offspring. Forty-three Tabapuã cows were randomly allocated in the following treatments: protein supplementation (PS) during days 100-200 of gestation (RES, 5.5% total crude protein (CP), n = 2, or CON, 10% total CP, n = 19) and OS (females, n = 20; males, n = 23). The offspring were evaluated during the cow-calf (0-210 days), backgrounding (255-320 days), growing 1 (321-381 days), and growing 2 (382-445 days) phases. The CON offspring tended to present higher dry matter intake (DMI) at weaning ( p = 0.06). The CON males presented lower digestibility of major diet components in the growing 2 phase ( p ≤ 0.02). The CON offspring spent 52% more time per day eating supplements at 100 days and 17% less time in idleness at 210 days. The CON males spent 15 min more per day ruminating than RES males in the feedlot phase ( p = 0.01). We concluded that protein supplementation over gestation alters the offspring feed intake pattern as a whole, while protein restriction promotes compensatory responses on nutrient digestibility in males.
Details
- Language :
- English
- ISSN :
- 2076-2615
- Volume :
- 12
- Issue :
- 20
- Database :
- MEDLINE
- Journal :
- Animals : an open access journal from MDPI
- Publication Type :
- Academic Journal
- Accession number :
- 36290250
- Full Text :
- https://doi.org/10.3390/ani12202865