Animal Production
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Animal Production
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Item Effect of sex, wattle, beard, hair type, and extra teat on growth-related traits of extensively managed goat (Capra aegagrus) population of Niger State, Nigeria.(Equity Journal of Science and Technology, 2016) Kolo, P. S.; Egena, S. S. A.; Tsado, D. N.; Adisa-Shehu, MAstudy that evaluated the effect of sex, wattle, beard, hair type and extra teat on growth traits of goats extensively managed in the three Senatorial zones ( i.e zones A, B and C) of Niger state was carried out. The growth traits evaluated include body weight, body length, height-at-withers, chest depth, chest girth, head length, head width, rump length, rump width, shin circumference, fore leg length and hind leg length.Male goats had better (p<0.05) measurement in all parameters considered in zone B of the state while the females were better (p<0.05) in all parameters measured in zones A and C except for shin circumference in which the males were better in zone A. Goats without wattle showed superiority (p<0.05) in most of the parameters measured in zone C. This was not so for goats in zones A and B as there was no clear demarcation between goats with or without wattle. Goats with beard were superior (p<0.05) in most of the parameters measured in zones B and C. Coarse hair type had significant (p<0.05) effect on body weight and all the other body measurements except for height-at-withers which was not significantly (p>0.05)affected. Soft hair had significant (p<0.05) effect on body weight, and all the body measurements except for hind leg length which showed no significant (p>0.05) difference. Extra teat had no significant (p>0.05) effect on body weight, body length height-at-withers, chest depth, chest girth, head length, rump width, shin circumference and hind leg length but significantly (p<0.05) influenced head width, rump length and fore leg length. Absence of extra teat had significant (p<0.05) effect on all the parameters measured except for head length which showed no significant (p>0.05) difference. At the end of the study, it was observed that sex and major genes had significant effect on most of the parameters measured. It is recommended based on the result emanating from the study that farmers be encouraged to rear goats with beard, those without extra teat and wattle since they were better in most of the parameters measured.Item Phenotypic and genetic categorization of qualitative traits in extensively managed local goat (Capra aegagrus) population of Niger State, Nigeria(Nigerian Journal of Genetics/Elsevier, 2015-10-09) Kolo, P.S.; Egena, S.S.A.; Tsado, D.N.; Adisa-Shehu, MA study on the distribution and frequencies of coat colour, wattle, beard, horn, and hair type using 375 extensively managed local goats was carried out in the three administrative zones of Niger state, Nigeria. The animals were scored for coat colour pigmentation pattern, presence or absence of wattle, beard, horn, hair type and extra teat. The study showed that light brown is the predominant colour in zones A (43.24%) and zone C (47.57%). Dark brown colour was predominant in zone B (37.82%) followed by light brown (31.09%). The observed frequencies for wattle (Waw) and extra teat (Ete) were above (p < 0.01) the expected Mendelian value of 75% for a dominant gene in all the zones (90.34, 86.55, 87.39 percent for wattle and 91.73, 96.64, 98.21, percent for extra teat in zones A, B, and C, respectively). The gene frequency for beard (Brb) were significantly lower (p < 0.01) than the expected Mendelian value of 75% for a dominant gene in zone A (66.20%) and zone B (55.46%), but was higher in zone C (83.78%). The gene frequency for polledness (Pop) was 0.00% for all the zones. The gene frequency for soft hair.was more than (p < 0.01) the expected Mendelian value of 75% for dominant genes in zone C (87.33%) but fell short in zone A (60.69%) andzone B (43.70%), respectively. It was concluded that coat colour variation exist in local goats reared extensively in Niger stateItem Phenotypic and genetic categorization of qualitative traits in extensively managed local goat (Capra aegagrus) population of Niger State, Nigeria(Nigerian Journal of Genetic/ Elsevier, 2015-10-09) Kolo, P.S.; Egena, S.S.A.; Tsado, D.N.; Adisa-Shehu, MA study on the distribution and frequencies of coat colour, wattle, beard, horn, and hair type using 375 extensively managed local goats was carried out in the three administrative zones of Niger state, Nigeria. The animals were scored for coat colour pigmentation pattern, presence or absence of wattle, beard, horn, hair type and extra teat. The study showed that light brown is the predominant colour in zones A (43.24%) and zone C (47.57%). Dark brown colour was predominant in zone B (37.82%) followed by light brown (31.09%). The observed frequencies for wattle (Waw) and extra teat (Ete) were above (p < 0.01) the expected Mendelian value of 75% for a dominant gene in all the zones (90.34, 86.55, 87.39 percent for wattle and 91.73, 96.64, 98.21, percent for extra teat in zones A, B, and C, respectively). The gene frequency for beard (Brb) were significantly lower (p < 0.01) than the expected Mendelian value of 75% for a dominant gene in zone A (66.20%) and zone B (55.46%), but was higher in zone C (83.78%). The gene frequency for polledness (Pop) was 0.00% for all the zones. The gene frequency for soft hair was more than (p < 0.01) the expected Mendelian value of 75% for dominant genes in zone C (87.33%) but fell short in zone A (60.69%) and zone B (43.70%), respectively. It was concluded that coat colour variation exist in local goats reared extensively in Niger stateItem Phenotypic and genetic categorization of qualitative traits in extensively managed local goat (Capra aegagrus) population of Niger State, Nigeria(Nigerian Journal of Genetics/Elsevier, 2015-10-09) Kolo, P. S; Egena, S.S.A.; Tsado, D.N.; Adisa-Shehu, MA study on the distribution and frequencies of coat colour, wattle, beard, horn, and hair type using 375 extensively managed local goats was carried out in the three administrative zones of Niger state, Nigeria. The animals were scored for coat colour pigmentation pattern, presence or absence of wattle, beard, horn, hair type and extra teat. The study showed that light brown is the predominant colour in zones A (43.24%) and zone C (47.57%). Dark brown colour was predominant in zone B (37.82%) followed by light brown (31.09%). The observed frequencies for wattle (Waw) and extra teat (Ete) were above (p < 0.01) the expected Mendelian value of 75% for a dominant gene in all the zones (90.34, 86.55, 87.39 percent for wattle and 91.73, 96.64, 98.21, percent for extra teat in zones A, B, and C, respectively). The gene frequency for beard (Brb) were significantly lower (p < 0.01) than the expected Mendelian value of 75% for a dominant gene in zone A (66.20%) and zone B (55.46%), but was higher in zone C (83.78%). The gene frequency for polledness (Pop) was 0.00% for all the zones. The gene frequency for soft hair. was more than (p < 0.01) the expected Mendelian value of 75% for dominant genes in zone C (87.33%) but fell short in zone A (60.69%) and zone B (43.70%), respectively. It was concluded that coat colour variation exist in local goats reared extensively in Niger state.