Investigation of mohair production, clean yield, and fibre characteristics in coloured mohair goat and F₁ cross-bred kids of Angora goat x coloured mohair goat.

摘要

The aim of this study was to compare some fleece and fibre characteristics between the kids of Coloured Mohair goat and F₁ crossbred kids of Angora x Coloured Mohair goats in order to reveal the effects of crossbreeding on mohair production, clean yield and fibre quality. This study was carried out using goats of the Coloured Mohair breed at the Experimental Farm of the Faculty of Veterinary Medicine of Yuzuncu Yl University. Four Angora goats were used as male materials. In 2001, the greasy fleece weight, clean mohair yield, fibre diameter, fibre length, fibre elasticity, breaking strength, kemp fibre content and medullated fibre content of kids at 12 months of age (36 F₁ crossbreds and 18 purebreds) were examined. The greasy fleece weight and clean mohair yield were 420 g and 74.3% for Coloured Mohair kids and 830 g and 75.9% for F₁ crossbred kids, respectively. The mean values for fibre diameter, fibre length, fibre elasticity, breaking strength, kemp fibre content and medullated fibre content were 36.4 mm, 7.4 cm, 32.4%, 8.2 g, 16.2% and 13.1% for Coloured Mohair kids and 30.1 mm, 7.8 cm, 31.6%, 6.3 g, 3.4% and 2.3% for F₁ crossbred kids, respectively. The effects of genotype (but not sex) on greasy fleece weight, fibre diameter, breaking strength, kemp fibre content and medullated fibre content were significant (P<0.001). The effects of genotype and sex on the fibre length, fibre elasticity and clean yield were insignificant (P >0.05). It was concluded that an overall improvement of mohair production traits was observed on F₁ kids developed by crossing Angora goat and Coloured Mohair goat. It could be supposed that Angora goats were selected more for mohair production compared to Coloured Mohair goats. Thus, one way to improve the quality of mohair of Coloured Mohair goat could be crossbreeding.