Performance of yankasa rams fed varying ratio of Brachiaria ruziziensis-Centrosema pascuorum hay mixtures

Ibrahim Sani, Joshua T. Amodu, Mohammed R. Hassan and Rogers J. Tanko

ABSTRACT    The performance of Yankasa rams fed varying ratios of Brachiaria ruziziensis-Centrosema pascuorum hay with concentrate was investigated. Twelve yearling rams having 10.25±0.1 kg average initial weight were assigned to three different diets of B. ruziziensis and C. pascuorum hays at varying proportions (75 B.R: 25 C.P, 50 B.R: 50 C.P and 25 B.R: 75C.P, respectively) in a Completely Randomized Design for 90 days. Forage mixtures (basal diet) were fed to the rams at 3% body weight while the concentrate diet was fed at fixed ratio. The growth trial showed that rams fed a mixture of 25% B.R: 75% C.P had the highest weight gain (3.92 kg). Similarly, the feed conversion ratio (18.07) obtained in 25% B.R: 75% C.P mixture was higher (P<0.05) than other treatment diets. Blood chemistry after feeding was mostly not significant (P>0.05) except glucose, alkaline phosphatase (ALP) and Urea Nitrogen (Urea N) which were significant (P<0.05). Animals fed 75 BR: 25 CP diets had better glucose (54 mmol) and ALP (18 µ/l) values after feeding, while Urea-N was higher (28.80 mmol) in animals fed 25BR:75CP diets. Animals on 25BR:75CP diets had best values after feeding for White Blood Cell (14.40 x106mm3) and Urea-N (28.80 mmol). The feed cost per kilogram gain ranged from N1629.30 in 25% B.R: 75% C.P to 1845.50 in 50% B.R: 50% C.P diet, which showed that 25% B.R: 75% C.P diet had best weight gain relative to feed cost. Gross profitability margin was higher in the 25 BR: 75 CP diet (54%), but 5% lower (49%) in the 50 BR: 50 CP diet and 13% lower (41%) in 75 BR: 25 CP diet. In conclusion, 25 BR: 75 CP (1: 3) performed best and is recommended in diet of Yankasa rams for best performance. © 2021 Department of Agricultural Sciences, AIOU

Keywords: Diets, Mixtures, Profitability, Rations, Weight gain, Yankasa rams

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