Improving Performance of Lactating Goats Fed Rations Containing Boroccoli by Products (Brassica oleracea)
Improving Performance of Lactating Goats Fed Rations Containing Boroccoli by Products (Brassica oleracea)
Yasmin M.M. Mahmoud
ABSTRACT
A total of twenty-four lactating Damascus goats were selected one-month pre-calving, with an average body weight of 39.33±1.41 kg at the start point of the feeding trial and at the 3rd to 4th milking seasons. Experimental diets were used to estimate the effect of partially replacing berseem hay (BH) with broccoli by-products (BB) in goats, rations on nutrient digestibility, milk production, some physiological properties of blood and hematological profile. Animals were randomly divided individually into three comparable groups (eight does/group) in a comparative feeding trial. First group was received concentrate feed mixture (CFM) and BH (60:40 %) as control diet (T0). Tested groups T1 and T2 were given rations containing (BB) 10 % or 20 % as replacement of (BH) in the control diet, respectively, for 90 days as an experimental period. As digestibility trials were conducted on the goats to determine the digestion coefficients and feeding values of rations used. Results revealed that goat groups that received T1 and T2 recorded a significant increases (P < 0.05) in the digestion coefficients, feeding values, actual milk yield, 4 %-fat corrected milk, the composition of milk fat %, total solid %, lactose % and dry matter intake. Also, better (P < 0.05) feed conversion was observed with the tested rations based on control (T0). Blood analysis and hematological characteristics were also estimated. It is recommended to replace berseem hay with dried broccoli by-products up to 20 % in the diet of lactating goats regarding their digestibility, productive performance, blood parameters and hematological profile.
Keywords | Goats, Broccoli wastes, Productive performance, Digestibility
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July 2022
Vol. 10, Iss. 7, Pages 1423-1658
