Animal Production
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Animal Production
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Item Application of path coefficient analysis in assessing the relationship between growth-related traits in indigenous Nigerian sheep (Ovis aries) of Niger State, Nigeria(Agricultural Science and Technology, 2015-06-05) Egena, S. S. A; Tsado, D. N; Kolo, P. S; Banjo, A.A; Shehu-Adisa, M.Indigenous Nigerian sheep raised under extensive management were evaluated with the aim of assessing variability among body weight and body measurement traits thereby deducing components that best describe the relationship using path coefficient analysis. The parameters measured were body weight (BW), body length (BL), head length (HL), head width (HW), height at withers (HAW), chest depth (CD), chest girth (CG) and shin circumference (SC). Pair wise correlation between body weight and body measurements were positive and significant (r = 0.475 – 0.655 in males, 0.262 – 0.449 in females, and 0.336 – 0.509 in the combined population, P<0.01). Path analysis showed that shin circumference and chest depth had the greatest direct effect on body weight in male, female and the combined population (path coefficient = 0.250, 0.252 and 0.250, respectively) while the least direct effect was observed for head width (in male and female with path coefficient = 0.007 and -0.017, respectively), and height at withers in the combined population (path coefficient = -0.020). Percentage direct contribution to body weight was 6.25, 6.35 and 6.25% from shin circumference (male), chest depth (in female and the combined population 2 respectively). The optimum linear regression models with coefficient of determination (R ) value of 0.45, 0.31 and 0.37 included forecast indices such as chest depth and shin circumference in males, body length, head length and chest depth in females and the combined population, respectively.Item Carcass yield, organoleptic and serum biochemistry of broiler chickens fed activated charcoal(Scienceweb Publishing, 2014-05) Jiya, E. Z; Ayanwale, B. A; Adeoye, A. B.; Kolo, P. S.; Tsado, D. N.; Alabi, O. J.Two hundred and twenty five (225) unsexed Marshal Broiler chicks were used to investigate the carcass yield, organoleptic and serum biochemistry of broilers fed activated charcoal. The broiler chicks were randomly allotted to five dietary treatments, supplemented with activated charcoal at 0, 0.5, 1, 1.5 and 2% and designated as T1, T2, T3, T4 and T5, respectively. Each treatment was grouped in three replicate with 15 birds per replicate. At the end of 8 weeks experimental period, a total of 15 broiler chickens were used for both carcass and blood analysis with three birds per treatment. Data was collected on carcass characteristics, sensory evaluation, and blood serum cholesterol. There were significant (P < 0.05) differences in the values of dressed weight, eviscerated weight, gizzard, abdominal fat, heart and spleen, while other carcass parameters were not significantly (P > 0.05) different. The result of the sensory evaluation were significant in all the parameters measured, while the serum biochemical analysis showed that SGOT (serum glutamine oxaloacetic transminase, SGPT (serum glutamine phosphates transminase), albumin, cholesterol and triglycerides were significantly (P < 0.05) different except alkaline phosphates and SGPT that were not significantly different. However, activated charcoal would serve as a good source of growth promoter for broiler birds to improve feed efficiency and their health. It is therefore concluded that at 0.5% activated charcoal supplementation increased relative organ weights, reduced cholesterol level of the broiler meat as a result or efficient mineral intake and nutrient utilization due to the absorptive effect of the activated charcoal.Item Path coefficient analysis of body weight and body measurements in Red Sokoto goats (Caprahircus l.) of Niger State, Nigeria(Revue Agriculture, 2014-06) Egena, S.S.A; Tsado, D.N.; Kolo, P. S; Banjo, A. A; Shehu-Adisa, M.Indigenous Red Sokoto goats raised under extensive system of management were used to evaluate the relationship between body weight (BW), head length (HL), head width (HW), height at withers (HAW), chest depth (CD), chest girth (CG), shin circumference (SC) and body length (BL). The objective of the study was to assess variability among body weight and its related characters using path coefficient analysis. Pair wise correlation between body weight and linear body measurements were positive and mostly significant (r= 0.053 - 0.826 in males; -0.020 - 0.667 in females and 0.072 – 0.690 in the combined population; P<0.05, 0.01). Path analysis showed that chest depth, shin circumference and body length made the greatest direct effect on body weight in male, female and the combined population (path coefficient = 0.360, 0.341 and 0.322, respectively) while the least direct effect was observed for height at withers, chest depth and height at withers in the male, female and the combined population (path coefficient = -0.019, -0.104 and -0.001 respectively). The optimum linear regression model with a coefficient of determination (R2) value of 0.684, 0.635 and 0.628 included forecast indices such as chest depth and body length in the male, head length, height at withers, chest depth, chest girth, shin circumference and body length in the female and head length, head width, chest girth, shin circumference and body length in the combined population. The optimum regression equations could be used in predicting body weight of indigenous goats in the field and for selection purposes.