Performance of Yankasa rams fed different ratios of Brachiaria ruziziensis forage and Concentrate in a total mixed ration.
Abstract
A feeding trial was conducted to evaluate the growth performance, nutrient digestibility, haematological parameters and carcass characteristics of broiler chickens fed diets containing raw and fermented Roselle seeds fermented at different period. Two hundred and seventy Ross broiler chickens were used for this experiment following a completely randomized design (CRD). The broiler chicks were assigned to six dietary treatments with three replicates each with 15 birds per replicate and forty-five birds per treatment. Six experimental diets were formulated for broiler starter and finisher phases respectively. Treatment one (T1) served as the control diet (0% Fermented Roselle Seed (FRS)), while treatments T2, T3, T4, T5 and T6 contained fermented Roselle seeds for 24hrs, 48hrs, 72hrs and 96hrs, respectively. The result at the starter phase showed that final body weight, weight gain, feed conversion ratio and total feed intake were significantly (P<0.05) higher in birds fed the control diet compared to all the other dietary treatments. Feed conversion ratio was best in birds fed the control diet (1.66) compared to other dietary treatments. Total feed intake was significantly (P<0.05) higher in birds fed the control diet (1244.60g/bird). Feed cost/kg gain was best at diets containing fermented Roselle seed at 96hrs (N158.16). At the finisher phase, final body weight, weight gain, feed conversion ratio and total feed intake increased linearly as the duration of fermentation increased. Birds fed diet containing raw Roselle seeds had the poorest feed conversion ratio (3.13). Feed cost/kg gain was lower in diets containing fermented Roselle seeds at 96hrs (N187.84). The dressing percentage was higher with birds fed the control diet (80.90%). The heamatological parameters showed significant (P<0.05) differences across dietary treatments except for WBC which showed no significant (P>0.05) differences across dietary treatment. Nutrient digestibility were significantly (P<0.05) different for dry matter, crude protein, crude fibre and ether extract except for nitrogen free extract. Based on the results of this study, it was concluded that 20% inclusion level of Roselle seed fermented for up to 96 hours can be incorporated in diets of broiler chickens without any adverse effect.
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References
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