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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
26/06/1998 |
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Data da última atualização: |
08/09/2021 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
JOHNSON, W. L.; BARROS, N. N.; OLIVEIRA, E. R. de; SIMPLICIO, A. A.; RIERA, S. |
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Afiliação: |
NELSON NOGUEIRA BARROS, CNPC; EDERLON RIBEIRO DE OLIVERIA, CNPC; AURINO ALVES SIMPLÍCIO, CNPC; GERARDO SIMÓN RIERA, Consultor IICA / EMBRAPA-CNPC. |
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Título: |
Feeding to influence age of puberty in tropical hair sheep. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Raleigh: SR-CRSP, 1985. |
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Páginas: |
13 p. |
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Série: |
(SR-CRSP. Technical Report Series, 59). |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical hair sheep of the Morada Nova breed were utilized to study the effect of energy intake on age and weight at puberty. Twenty-four ewe-lambs, 140+/-1.2 days of age and weighing 12.5+/-.25Kg, were assigned to receive 50, 200, 350 or 500g of maize grain per day (T1, 2, 3 and 4, respectively) along with 150g of cottonseed cake and a ground maize stover/maize cob mixture ad libitum. Between the beginning of the experiment and first estrus, one lamb was removed from T3 and one from T4 due to rumen disorders. Also, one lamb from T1 was eliminated for reasons not related to experimental treatments. The remaining 21 lambs gained weight at rates of 42+/-6, 49+/-5, 60+/-8 and 74+/-9g.day-1 for T1, 2, 3 and 4, respectively. First estrus, detected by vasectomized teaser rams, was displayed at 283+/-13, 294+/-15, 310+/-16 and 266+/-16 days of age and 19.1+/-1.2, 20.6+/-1.2, 23.4+/-2.0 and 20.8+/-1.4Kg of weight for the four treatment groups. Treatments differences were not significant (P>.05) for age or weight at first estrus. Performance of Morada Nova ewe-lambs in this experiment indicates that postweaning feeding should provide for average daily gains within the range of 35 to 75g.day-1; that animals thus fed will display first estrus at 260-320 days of age (irrespective of weight) or at 18-22 Kg weight (irrespective of age); and that a higher energy intake level will not accelerate age of first estrus. |
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Palavras-Chave: |
Brasil; Feeding; Growth rate; Puberdade; Semiarid tropic; Semiárido; Supplementary feeding; Tropical regions. |
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Thesagro: |
Idade; Maturidade sexual; Nutrição animal; Ovino; Suplemento energético; Taxa de crescimento. |
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Thesaurus Nal: |
Age; Animal nutrition; Brazil; Energy; puberty; Sexual maturity; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/47383/1/NT-Feeding-to-influence.pdf
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Marc: |
LEADER 02507nam a2200433 a 4500
001 1514966
005 2021-09-08
008 1985 bl uuuu u0uu1 u #d
100 1 $aJOHNSON, W. L.
245 $aFeeding to influence age of puberty in tropical hair sheep.
260 $aRaleigh: SR-CRSP$c1985
300 $a13 p.
490 $a(SR-CRSP. Technical Report Series, 59).
520 $aTropical hair sheep of the Morada Nova breed were utilized to study the effect of energy intake on age and weight at puberty. Twenty-four ewe-lambs, 140+/-1.2 days of age and weighing 12.5+/-.25Kg, were assigned to receive 50, 200, 350 or 500g of maize grain per day (T1, 2, 3 and 4, respectively) along with 150g of cottonseed cake and a ground maize stover/maize cob mixture ad libitum. Between the beginning of the experiment and first estrus, one lamb was removed from T3 and one from T4 due to rumen disorders. Also, one lamb from T1 was eliminated for reasons not related to experimental treatments. The remaining 21 lambs gained weight at rates of 42+/-6, 49+/-5, 60+/-8 and 74+/-9g.day-1 for T1, 2, 3 and 4, respectively. First estrus, detected by vasectomized teaser rams, was displayed at 283+/-13, 294+/-15, 310+/-16 and 266+/-16 days of age and 19.1+/-1.2, 20.6+/-1.2, 23.4+/-2.0 and 20.8+/-1.4Kg of weight for the four treatment groups. Treatments differences were not significant (P>.05) for age or weight at first estrus. Performance of Morada Nova ewe-lambs in this experiment indicates that postweaning feeding should provide for average daily gains within the range of 35 to 75g.day-1; that animals thus fed will display first estrus at 260-320 days of age (irrespective of weight) or at 18-22 Kg weight (irrespective of age); and that a higher energy intake level will not accelerate age of first estrus.
650 $aAge
650 $aAnimal nutrition
650 $aBrazil
650 $aEnergy
650 $apuberty
650 $aSexual maturity
650 $aSheep
650 $aIdade
650 $aMaturidade sexual
650 $aNutrição animal
650 $aOvino
650 $aSuplemento energético
650 $aTaxa de crescimento
653 $aBrasil
653 $aFeeding
653 $aGrowth rate
653 $aPuberdade
653 $aSemiarid tropic
653 $aSemiárido
653 $aSupplementary feeding
653 $aTropical regions
700 1 $aBARROS, N. N.
700 1 $aOLIVEIRA, E. R. de
700 1 $aSIMPLICIO, A. A.
700 1 $aRIERA, S.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
06/01/2012 |
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Data da última atualização: |
24/01/2012 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
AGUIAR, A. V. de; SOUSA, V. A. de; SHIMIZU, J. Y. |
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Afiliação: |
ANANDA VIRGINIA DE AGUIAR, CNPF; VALDERES APARECIDA DE SOUSA, CNPF; Jarbas Yukio Shimizu, Pesquisador aposentado da Embrapa Florestas. |
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Título: |
Produção de sementes de alta qualidade genética. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Referência, v. 8, n. 121, p. 30-31, nov. 2011. |
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Idioma: |
Português |
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Palavras-Chave: |
Sementes. |
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Thesagro: |
Essencia florestal; Melhoramento genético vegetal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00463nam a2200157 a 4500
001 1911885
005 2012-01-24
008 2011 bl uuuu u00u1 u #d
100 1 $aAGUIAR, A. V. de
245 $aProdução de sementes de alta qualidade genética.
260 $aReferência, v. 8, n. 121, p. 30-31, nov. 2011.$c2011
650 $aEssencia florestal
650 $aMelhoramento genético vegetal
653 $aSementes
700 1 $aSOUSA, V. A. de
700 1 $aSHIMIZU, J. Y.
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Registro original: |
Embrapa Florestas (CNPF) |
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