The Effect of Yeast Culture on the Performance of Two Poultry Types Fed under Various Regimes
نویسندگان
چکیده
Two studies were conducted utilizing 270 chickens to evaluate the efficacy of yeast culture (YC) for both broiler and layer ayian types. In the first experiment, three dietary levels (0, 1.25, 2.50 percent) of YC were included in a nutritionally complete ration and fed to 14-day-old broiler chicks for 8 days. Body weight gain, feed consumption (g) and feed efficiency were not influenced by yeast culture supplementation. In the second experiment, YC was fed at two dietary levels (0, 2.5 percent) to 14-week-old Shaver pullets receiving two ration types varying in nutrient density. Rations evaluated with and without YC included: 1) a low fiber ration; 2) a high fiber ration and 3) a low phosphorus ration. Body weight gain, feed consumption, and dry matter and phosphorus digestibility were not influenced by YC addition.
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