Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves

This study aimed to investigate the influence of calf genetic group on the performance of Nellore lactating cows. The variables studied included milk ingestion, pasture intake, calf weight gain and cow body weight. A total of 13 Nellore calves and 8 crossbred Simental × Nellore calves were used, all...

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Main Authors: Fernando Miranda de Vargas Junior, Francisco Stefano Wechsler, Patrícia Rossi, Marcus Vinicius Morais de Oliveira, Patrick Schmidt
Format: Article
Language:English
Published: Sociedade Brasileira de Zootecnia 2011-11-01
Series:Revista Brasileira de Zootecnia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100040
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author Fernando Miranda de Vargas Junior
Francisco Stefano Wechsler
Patrícia Rossi
Marcus Vinicius Morais de Oliveira
Patrick Schmidt
author_facet Fernando Miranda de Vargas Junior
Francisco Stefano Wechsler
Patrícia Rossi
Marcus Vinicius Morais de Oliveira
Patrick Schmidt
author_sort Fernando Miranda de Vargas Junior
collection DOAJ
description This study aimed to investigate the influence of calf genetic group on the performance of Nellore lactating cows. The variables studied included milk ingestion, pasture intake, calf weight gain and cow body weight. A total of 13 Nellore calves and 8 crossbred Simental × Nellore calves were used, all born from Nellore mothers. During the experimental period of 210 days, calves were weighted at birth and at 30-day intervals, whereas cows were weighed every 14 days. Milk intake was estimated using the weigh-suckle-weigh method. Pasture intake was determined 6, 12, and 24 weeks after birth by using chromic oxide as an external marker and indigestible acid detergent fiber as an internal marker. Average weight of crossbred calves was 10.1 kg and their milk intake was 0.42 kg higher than in purebred calves. There was no difference, however, in pasture intake between genetic groups. In Nellore cows, body weight and pasture consumption (9.2 kg of DM/cow/day) were not influenced by calf heterosis.
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spelling doaj.art-636446d1eb854e2fbd981746686de2362022-12-22T02:47:17ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1516-35981806-92902011-11-0140112574258110.1590/S1516-35982011001100040Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calvesFernando Miranda de Vargas JuniorFrancisco Stefano WechslerPatrícia RossiMarcus Vinicius Morais de OliveiraPatrick SchmidtThis study aimed to investigate the influence of calf genetic group on the performance of Nellore lactating cows. The variables studied included milk ingestion, pasture intake, calf weight gain and cow body weight. A total of 13 Nellore calves and 8 crossbred Simental × Nellore calves were used, all born from Nellore mothers. During the experimental period of 210 days, calves were weighted at birth and at 30-day intervals, whereas cows were weighed every 14 days. Milk intake was estimated using the weigh-suckle-weigh method. Pasture intake was determined 6, 12, and 24 weeks after birth by using chromic oxide as an external marker and indigestible acid detergent fiber as an internal marker. Average weight of crossbred calves was 10.1 kg and their milk intake was 0.42 kg higher than in purebred calves. There was no difference, however, in pasture intake between genetic groups. In Nellore cows, body weight and pasture consumption (9.2 kg of DM/cow/day) were not influenced by calf heterosis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100040crossinggrazingmilkweight gain
spellingShingle Fernando Miranda de Vargas Junior
Francisco Stefano Wechsler
Patrícia Rossi
Marcus Vinicius Morais de Oliveira
Patrick Schmidt
Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
Revista Brasileira de Zootecnia
crossing
grazing
milk
weight gain
title Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
title_full Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
title_fullStr Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
title_full_unstemmed Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
title_short Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
title_sort voluntary intake of dry matter and performance of nellore cows and their nellore and crossbred simental nellore calves
topic crossing
grazing
milk
weight gain
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100040
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AT patriciarossi voluntaryintakeofdrymatterandperformanceofnellorecowsandtheirnelloreandcrossbredsimentalnellorecalves
AT marcusviniciusmoraisdeoliveira voluntaryintakeofdrymatterandperformanceofnellorecowsandtheirnelloreandcrossbredsimentalnellorecalves
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