Data/hora: 17/06/2024 14:53:36

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 03/03/2016
Data da última atualização: | 03/03/2016
Autoria: | BISHOP, S. C.; ALLAIN, D.
Título: | Selection for fibre production in Angora and Cashmere goats.
Ano de publicação: | 2000
Fonte/Imprenta: | In: INTERNATIONAL CONFERENCE ON GOATS, 7., 2000, Tours, Poitiers, France. Proceedings... Paris: INRA: IGA: Institut de Elevage, 2000. v. 1, p. 201-202.
Idioma: | Inglês
Conteúdo: | Abstract: This paper considers the genetic improvement of fibre production in goats, specifically mohair and cashmere. We will consider the genetic control of traits relating to both the quantity and quality of fibre produced. Traits describing the quality and quantity of mohair tend to be moderately inherited, with the following heritability values obtained for the French national selection scheme: greasy fleece weight (0.19), mean fibre diameter (0.32), kemp score (0.39), lock type score (0.24), staple length (0.18), body cover score (0.53) and fleece homogeneity (0.06). Fleece weight and fibre diameter are moderately positively correlated. Cashmere quality and quantity traits tend to be more strongly inherited, with the following heritability values obtained in the breeding programme: fibre diameter (0.64), estimated annual cashmere production (0.59), fibre length (0.57) and staple structure (0.78). Weight, diameter and length of fibre are all strongly positively correlated. Selection for the improvement of goat fibres, specifically cashmere and mohair, is one of the most interesting and satisfying breeding goals in goat production, or even the whole of animal production. We have demonstrated that there are many traits controlling both fibre quality and quantity, and that these traits tend to be moderately to strongly inherited.
Palavras-Chave: | Animal fibres; Cashmere; Genetic control; Selection.
Thesagro: | Caprino; Controle genético; Fibra animal; Genética animal; Melhoramento genético animal; Seleção.
Thesaurus Nal: | Genetic improvement; Goats.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (30313-1) - ADD - PL - PP - 636.39 - I61p - 2001.00843 - DIS