| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
POST WEANING FEEDING MANAGEMENT AND PERFORMANCE OF MERINO EWES GRAZING ON NATURAL AND IMPROVED PASTURES AT MATING SEASON
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| Autores: |
Bianchi,Gianni
Burgueño,Juan
Fernández Abella,Daniel
Garibotto,Gustavo
Cáceres,Rosario
Cesar,Rómulo
Jones,Guillermo
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| Data: |
2001-02-01
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| Ano: |
2001
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| Palavras-chave: |
Body condition
Mating
Reproduction
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| Resumo: |
In the uruguayan Basalt region, the reproductive performance of 300 Merino ewes and the effect of 3 post-weaning feeding managements (PWFM: I: 1.2 cm height of available forage and 16 ewes/ha; II: 2.03 cm height of available forage and 5 ewes/ha; III: 2.5cm height of available forage and 1 ewe/ha) as well as 2 feeding levels before and during the breeding season (FLM: native pastures: green DM/ha: 883kg, CP: 114g/kg DM, NDF: 781g/kg DM and improved pastures: DM /ha: 1270kg, CP: 194g/kg DM, NDF: 598g/kg DM) were studied with a factorial arrangement of treatments. The PWFM extended for 70 days, ewes were mated in the period from 13/4/96 to 13/5/96 and FLM were applied for 30 days, starting 15 days before beginning of breeding. There were not differences on the ovulation rate (P>0.05); however, the P values might indicate some effect of the treatments. The number of born lambs/ewe served increased with the ovulation rate because the higher number of ovulations balanced their less viability, individually considered. Actually, the number of born lambs/ewe served was higher with animals coming from PWFM III (1.18, 1.11 and 0.96, PWFM III, II and I, respectively; P = 0.02) and with the animals grazing on improved pastures at mating period (1.13 and 1.03, improved pastures and natural pastures, respectively; P = 0.10), were those which showed slight higher ovulation rate.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782001000100017
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/S0103-84782001000100017
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.31 n.1 2001
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| Direitos: |
info:eu-repo/semantics/openAccess
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