BDPA - Bases de Dados da Pesquisa Agropecuária Embrapa
 






Registro Completo
Biblioteca(s):  Embrapa Caprinos e Ovinos.
Data corrente:  22/11/2002
Data da última atualização:  22/11/2002
Autoria:  ADAM, C. L.; FINDLAY, P. A.; KYLE, C. E.; YOUNG, P.
Título:  Effect of restricted nutrition on timing of puberty in female Soay sheep.
Ano de publicação:  1998
Fonte/Imprenta:  Journal of Reproduction and Fertility, v. 112, n. 1, p. 31-37, 1998.
Idioma:  Inglês
Conteúdo:  Ovariectomized, oestradiol-implanted Soay ewe lambs from 21 September (aged 21 weeks) had restricted (liveweight maintenance) (n = 4) or unrestricted food (n = 4); ovary-intact lambs had unrestricted food (n = 8). LH activation in ovariectomized lambs on restricted and unrestricted food and onset of ovulatory cycles in ovary-intact lambs all occurred on 7 December (SED 8.8 days) (32 weeks), but at different liveweights (24.2, 17.9 and 18.3 kg, respectively, SED 1.22). LH pulse frequency was similar in ovariectomized lambs on restricted and unrestricted food. From 29 August (aged 18 weeks), Soay ewe lambs in seasonally advanced decreased artificial daylength were given restricted food, unrestricted food, or food was restricted for 8 weeks and then unrestricted (n = 8 per group). Ovarian cycles started 3 weeks earlier than in lambs in natural photoperiod on similar dates for all three groups (14, 18 and 19 November, respectively, SED 5.5 days) (29 weeks), but at different liveweights (16.2, 20.7, and 18.4 kg, respectively, SED 0.87). From 1 August, Suffolk x Greyface ewe lambs (aged 16 weeks) had restricted food, unrestricted food, or food restricted for 8 weeks and then unrestricted (n = 8 per group). By 1 November (29 weeks), 0/8lambs on restricted food (29.3 +- 0.92 kg) but 8/8lambs on unrestricted food and 5/8 lambs on 8 weeks of restricted food had ovulated (mean dates: 16 October :t 2.5 days (27 weeks, 40.1 +- 1.02 kg), and 1 November +- 3.0 days (29 weeks, 35.5 +- 1.23 ... Mostrar Tudo
Palavras-Chave:  Puberdade.
Thesagro:  Nutrição Animal; Ovino.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Caprinos e Ovinos (CNPC)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPC15129 - 1ADCAP - --v.112, n.1

Voltar

Nenhum registro encontrado para a expressão de busca informada.
Nenhum registro encontrado para a expressão de busca informada.
 
 

Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área Restrita

Embrapa Informática Agropecuária
Av. André Tosello, 209 - Barão Geraldo
Caixa Postal 6041- 13083-886 - Campinas, SP
PABX: SAC (19) 3211-5743
SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional