The influence of weaning age and biocholine supplementation to post-weaning growth and puberty in Brangus heifers

This experiment was conducted to determine the effect of earlier weaning in addition to biocholine supplementation on age at puberty of Brangus heifers. Brangus calves were randomized and divided into three weaning ages groups, at 30 (Hyper-early weaning; HW), 75 (Early weaning; EW) and 180 days (Co...

Full description

Saved in:
Bibliographic Details
Published in:Research in veterinary science 2022-12, Vol.152, p.107-114
Main Authors: de Lima, Vanessa, Pereira, Gabriel Ribas, da Rocha, Marcela Kuczynski, de Oliveira, Tamara Esteves, Fagundes, Helena Xavier, Lima, Julia Abud, Barcellos, Júlio Otávio Jardim
Format: Article
Language:English
Subjects:
Age
Animals
Beef heifers
Body weight
Calves
Cattle
Corpus luteum
Diet
Evaluation
Feeds
Ovulation
Pasture
Puberty
Supplements
Thorax
Veterinary medicine
Vitamin supplementation
Weaning
Weaning age
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This experiment was conducted to determine the effect of earlier weaning in addition to biocholine supplementation on age at puberty of Brangus heifers. Brangus calves were randomized and divided into three weaning ages groups, at 30 (Hyper-early weaning; HW), 75 (Early weaning; EW) and 180 days (Conventional weaning; CW). Then, calves were supplemented using the additive Biocholine (BIO) or not (CON). Animals were subjected to puberty induction and the presence of estrus was observed for 7 days. In addition, transrectal ultrasonography was performed to assess the ovarian activity and the presence of corpus luteum to determine heifer puberty. We also evaluated the body weight (BW; Kg), hip height (HH; cm), thoracic perimeter (TP; cm) and BW:HH ratio during the experimental period. BIO group showed higher ADG (>226 g/day) when the animals were exposed to ryegrass pasture compared to CON (P 
ISSN:0034-5288
1532-2661
DOI:10.1016/j.rvsc.2022.07.027