G.G. Miguel-Pacheco
Increased dietary protein in the second trimester of gestation increases live weight gain and carcass composition in weaner calves to 6 months of age
Miguel-Pacheco, G.G.; Curtain, L.D.; Rutland, Catrin S.; Knott, L.; Norman, S.T.; Phillips, N.J.; Perry, V.E.A.
Authors
L.D. Curtain
Catrin S. Rutland
L. Knott
S.T. Norman
N.J. Phillips
V.E.A. Perry
Abstract
Genetically similar nulliparous Polled Hereford heifers from a closed pedigree herd were used to evaluate the effects of dietary protein during the first and second trimester of gestation upon fetal, placental and postnatal growth. Heifers were randomly allocated into two groups at 35d post AI (35dpc) to a single bull and fed High (15.7%CP) or Low (5.9%CP) protein in the first trimester (T1). At 90dpc, half of each nutritional treatment group changed to a High or Low protein diet for the second trimester until 180dpc (T2). High protein intake in the second trimester increased birthweight in females (P = 0.05) but there was no effect of treatment upon birthweight when taken over both sexes. Biparietal diameter was significantly increased by high protein in the second trimester with the effect being greater in the female (P = 0.02) but also significant overall (P = 0.05). Placental weight was positively correlated with birth weight, fibroblast volume, and relative blood vessel volume (P < 0.05). Placental fibroblast density was increased and trophoblast volume decreased in the high protein first trimester treatment group (P
Citation
Miguel-Pacheco, G., Curtain, L., Rutland, C. S., Knott, L., Norman, S., Phillips, N., & Perry, V. (2017). Increased dietary protein in the second trimester of gestation increases live weight gain and carcass composition in weaner calves to 6 months of age. animal, 11(6), 991-999. https://doi.org/10.1017/S1751731116002330
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 29, 2016 |
Online Publication Date | Nov 8, 2016 |
Publication Date | Jun 1, 2017 |
Deposit Date | Oct 18, 2016 |
Publicly Available Date | Mar 28, 2024 |
Journal | Animal |
Print ISSN | 1751-7311 |
Electronic ISSN | 1751-732X |
Publisher | Cambridge University Press |
Peer Reviewed | Peer Reviewed |
Volume | 11 |
Issue | 6 |
Pages | 991-999 |
DOI | https://doi.org/10.1017/S1751731116002330 |
Keywords | fetal programming; bovine; calf growth; gestation diet |
Public URL | https://nottingham-repository.worktribe.com/output/863225 |
Publisher URL | https://www.cambridge.org/core/journals/animal/article/div-classtitleincreased-dietary-protein-in-the-second-trimester-of-gestation-increases-live-weight-gain-and-carcass-composition-in-weaner-calves-to-6-months-of-agediv/F074C0E360136AD81D19002AC29D86F7 |
Additional Information | License: © The Animal Consortium 2016This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. |
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Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
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