Data/hora: 18/06/2024 04:02:41

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 01/08/1992
Data da última atualização: | 30/03/2023
Autoria: | ALLISON, A. J.
Título: | The effect of mating pressure on characteristics of the ejaculate in rams and on reproductive performance in ewes.
Ano de publicação: | 1972
Fonte/Imprenta: | Proceedings of the New Zealand Society of Animal Production, v. 32, p. 112-113, Jan. 1972.
Idioma: | Inglês
Conteúdo: | Although there was a dramatic decline in total spermatozoa per ejaculate, concenption rates were unaffected. The fact that many ewes were mated by more than one ram and also that each ram will often mate each ewe more than once means that the total number of spermatozoa deposited in the anterior vagina has been more than adequate for normal fertility. It would seem than conventional ram/ewe ratios used under intensive farming conditions are unnecessarily high. Table 1: Percentages of ewes mated in first 17-day cycle and ?returns? to service.
Palavras-Chave: | Manejo reprodutivo; Sexual behaviour.
Thesagro: | Ovino; Reprodução.
Thesaurus Nal: | Reproduction; Sheep; Spermatozoa.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (9099-1) - ADD - AP - DD -  -  -  - DIS