Data/hora: 18/06/2024 03:45:15

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 01/08/2007
Data da última atualização: | 16/11/2023
Autoria: | ALLISON, A. J.; DAVIS, G. H.
Título: | Studies of mating behaviour and fertility of Merino ewes. II. Effects of age of ewe, live weight, and paddock size on duration of oestrous and ram-seeking activity.
Ano de publicação: | 1976
Fonte/Imprenta: | New Zealand Journal of Experimental Agriculture, v. 4, n. 3, p. 269-274, 1976.
DOI: | https://doi.org/10.1080/03015521.1976.10425882
Idioma: | Inglês
Conteúdo: | Abstract: The mean duration of oestrus in two-tooth and mixed-age Merino ewes was 10.8 and 12.8 hours respectively (not significant, range 2?24 hours). Live weight of ewes also had no significant effect on the duration of oestrus. Ram-seeking activity was higher in mixed-age ewes than in two-tooths (P < 0.01) and was also increased in groups with a higher mean live weight (P < 0.01). An increase in paddock size reduced the percentage of ewes in both age-groups which were mated by tethered rams (P < 0.01).
Palavras-Chave: | Oestrous cycle.
Thesagro: | Ciclo Estral; Fisiologia; Merino; Ovino; Reprodução.
Thesaurus Nal: | Estrous cycle; Reproduction; Sheep.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (20146-1) - ADD - AP - PP - SP 01535 -  - SP 01535 - DIS