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International Journal of Dairy Science

Year: 2009 | Volume: 4 | Issue: 4 | Page No.: 152-158
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Authors

K. El-Hassan

El- Abid

A.M.A. Abu Nikhaila

Keywords

Research Article

A Study on Some Non-Genetic Factors and their Impact on Some Reproductive Traits of Sudanese Nubian Goats

K. El-Hassan, El- Abid and A.M.A. Abu Nikhaila
The objective of the current study was to estimate reproductive parameters of Sudanese Nubian goat under extensive management system. The data of eighty-six parities of Sudanese Nubian goats were used; the parities occurred during the period from October 1998 to August 2000, to a parent stock raised on traditional pastoralism. These parities were used in completely randomized design to investigate the effects of grazing supplementation, season of kidding and parity order on the pattern of recurring estrous cycles during the year, gestation length, service period, kidding interval and kidding rate. The results indicated non seasonal pattern of ovarian cyclicity, the gestation length averaged 148.57±3.60 days. Nutritional supplementation, season of kidding and parity order had non-significant effect on gestation length. The service period averaged 148.29±62.38 days. Nutritional supplementation and season of kidding exerted a significant (p<0.05) effect on service period. However, the parity order had a non-significant effect on service period. The average kidding interval was 278.05±75.19 days. Nutritional supplementation, season of kidding and parity order had non-significant effect on kidding interval. Litter size was 1.12±0.36 kids. Nutritional supplementation, season of kidding and parity order had non-significant effect on litter size.
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