The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows

The present study tested the effect of biostimulation by bull exposure on the early postpartum reproductive performance of well fed and permanently suckled Angus cows. At 1 week postpartum, 90 Angus cows with no history of calving problems and their calves were allocated by parity, body weight, and...

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Main Authors: Antonio Landaeta-Hernández, Pedro Meléndez, Julián Bartolomé, Owen Rae, Louis Archbald
Format: Article
Language:English
Published: Universidad del Zulia 2010-04-01
Series:Revista Científica
Subjects:
Online Access:http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15413
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author Antonio Landaeta-Hernández
Pedro Meléndez
Julián Bartolomé
Owen Rae
Louis Archbald
author_facet Antonio Landaeta-Hernández
Pedro Meléndez
Julián Bartolomé
Owen Rae
Louis Archbald
author_sort Antonio Landaeta-Hernández
collection DOAJ
description The present study tested the effect of biostimulation by bull exposure on the early postpartum reproductive performance of well fed and permanently suckled Angus cows. At 1 week postpartum, 90 Angus cows with no history of calving problems and their calves were allocated by parity, body weight, and body frame into 3 isolated groups of 30 cows each. Cows from groups A and B were permanently exposed to mature bulls (BE) while cows from Group C (NE) served as a control. Analyzed variables included; intervals from calving to resumption of ovarian activity (ICR), and first behavioral estrus (ICE), length of the first estrous cycle (ECL), number of cows showing estrus/group, and number of estrus periods (NEP) occurred per cow during the 90 days previous to the breeding season. The ICR (38.1 Ó 3.4 vs 51.0 Ó 4.4; P
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spelling doaj.art-c558ea32a3a64484a67d0473968fae2d2023-02-28T15:27:56ZengUniversidad del ZuliaRevista Científica0798-22592521-97152010-04-01186The effect of bull exposure on the early postpartum reproductive performance of suckling angus cowsAntonio Landaeta-Hernández0Pedro Meléndez1Julián Bartolomé2Owen Rae3Louis Archbald4University of FloridaUniversity of FloridaUniversity of FloridaUniversity of FloridaUniversity of Florida The present study tested the effect of biostimulation by bull exposure on the early postpartum reproductive performance of well fed and permanently suckled Angus cows. At 1 week postpartum, 90 Angus cows with no history of calving problems and their calves were allocated by parity, body weight, and body frame into 3 isolated groups of 30 cows each. Cows from groups A and B were permanently exposed to mature bulls (BE) while cows from Group C (NE) served as a control. Analyzed variables included; intervals from calving to resumption of ovarian activity (ICR), and first behavioral estrus (ICE), length of the first estrous cycle (ECL), number of cows showing estrus/group, and number of estrus periods (NEP) occurred per cow during the 90 days previous to the breeding season. The ICR (38.1 Ó 3.4 vs 51.0 Ó 4.4; Phttp://www.produccioncientificaluz.org/index.php/cientifica/article/view/15413male-effectbiostimulation
spellingShingle Antonio Landaeta-Hernández
Pedro Meléndez
Julián Bartolomé
Owen Rae
Louis Archbald
The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
Revista Científica
male-effect
biostimulation
title The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
title_full The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
title_fullStr The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
title_full_unstemmed The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
title_short The effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
title_sort effect of bull exposure on the early postpartum reproductive performance of suckling angus cows
topic male-effect
biostimulation
url http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15413
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