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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
04/11/2015 |
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Data da última atualização: |
04/11/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RAJAB, M. H.; CARTWARIGHT, T. C.; DAH, P. F.; FIGUEIREDO, E. A. P. de. |
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Afiliação: |
Department of Statistics and Department of Animal Science, Texas A&M University, College Station; T. C. Cartwright; P. F. Dah; ELSIO ANTONIO PEREIRA DE FIGUEIREDO, CNPC. |
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Título: |
Performance of three tropical hair sheep breeds. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 70, p. 3351-3359, 1992. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The performance of three hair sheep breeds (Brazilian Somali, Morada Nova, and Santa Ines) was evaluated in the production environment of northeastern Brazil. Data from a total of 524 lambs sired by 21 rams and out of 190 ewes were analyzed. These data were collected from 1980 to 1983 at Sobral, Brazil from an experiment designed to compare performance of the three breeds. The traits included weights of lambs at birth, weaning, 8 mo, 10 mo, and yearling ages and ewe characters of weight at lambing (EWT), total lamb weight born (LWBI, total lamb weight weaned (Lm, and prolificacy rate (PR1. Differences (P < .011 among breeds were found for all characters. The Brazilian Somali, the smallest and slowest-gaining breed, was less sensitive to yearly variation than were the other breeds. The Santa Ines, the largest and fastest-gaining breed, was superior in LWB and LWW per ewe lambing. Averaged over the 4-yr period, the Morada Nova had the highest PR (1.821, and the Brazilian Somali and Santa Ines had similar PR (1.39 and 1.31, respectively). Environmental effects on PR due to yearly raidall quantity and distribution pattern influenced lamb growth up to weaning and ewe reproduction performance. Breed x year (P < .051 interaction effects on PR were largely attributable to the Somali breeds exhibiting higher PR than the Santa Ines and Morada Nova breeds during the relatively wet years of 1981 and 1982. |
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Palavras-Chave: |
Genotypes; Lamb; Morada Nova; Santa Ines; Somalis. |
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Thesagro: |
Cordeiro; Crescimento; Ovino; Performance; Produtividade. |
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Thesaurus Nal: |
Sheep. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/132369/1/CNPC-1992-Performance.pdf
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Marc: |
LEADER 02137naa a2200289 a 4500
001 2027856
005 2015-11-04
008 1992 bl uuuu u00u1 u #d
100 1 $aRAJAB, M. H.
245 $aPerformance of three tropical hair sheep breeds.
260 $c1992
520 $aAbstract: The performance of three hair sheep breeds (Brazilian Somali, Morada Nova, and Santa Ines) was evaluated in the production environment of northeastern Brazil. Data from a total of 524 lambs sired by 21 rams and out of 190 ewes were analyzed. These data were collected from 1980 to 1983 at Sobral, Brazil from an experiment designed to compare performance of the three breeds. The traits included weights of lambs at birth, weaning, 8 mo, 10 mo, and yearling ages and ewe characters of weight at lambing (EWT), total lamb weight born (LWBI, total lamb weight weaned (Lm, and prolificacy rate (PR1. Differences (P < .011 among breeds were found for all characters. The Brazilian Somali, the smallest and slowest-gaining breed, was less sensitive to yearly variation than were the other breeds. The Santa Ines, the largest and fastest-gaining breed, was superior in LWB and LWW per ewe lambing. Averaged over the 4-yr period, the Morada Nova had the highest PR (1.821, and the Brazilian Somali and Santa Ines had similar PR (1.39 and 1.31, respectively). Environmental effects on PR due to yearly raidall quantity and distribution pattern influenced lamb growth up to weaning and ewe reproduction performance. Breed x year (P < .051 interaction effects on PR were largely attributable to the Somali breeds exhibiting higher PR than the Santa Ines and Morada Nova breeds during the relatively wet years of 1981 and 1982.
650 $aSheep
650 $aCordeiro
650 $aCrescimento
650 $aOvino
650 $aPerformance
650 $aProdutividade
653 $aGenotypes
653 $aLamb
653 $aMorada Nova
653 $aSanta Ines
653 $aSomalis
700 1 $aCARTWARIGHT, T. C.
700 1 $aDAH, P. F.
700 1 $aFIGUEIREDO, E. A. P. de
773 $tJournal of Animal Science$gv. 70, p. 3351-3359, 1992.
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Embrapa Caprinos e Ovinos (CNPC) |
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