effects of refined Montmorillonite with and without some medicine plants extract as broiler feed additives.
2009
Mir A`bd Ol-Baqi, Zhaleh | Lotf Ol-Lahiyan, Hushang | Aqa Shahi, A`li Reza | Hosseini, A`bd Ol-Lah | Mahdi Zadeh, Mozaffar | Mahdavi, A`li | Gholami, A`li | Mo`azzezi, Faramarz | Qasem Lu, Vahid | Khamushi, Behruz
This experiment was conducted to study the effects of tow kind new additives in broilers nutrition. For production of one feed additive first of all bentonite get floured and then mixed with water solution (one part bentonite and 9 part water). Mixed suspension sieved 325 mash to obtain net montmorilonite. Mixed solution were purified, dried and analyzed in mineralogical lablatory. 3 experimental diets were studied (1- diet without montmorilonite, 2- diet with 0.5 % purified montmorilonite and 3- diet with 0.5 % purified montmorilonite plus some medicine plants extract). 120 day old male broiler chicks(Ross) were used and feed intake, weight gain, feed conversion ratio, mortality percentage and production index were studied. Result showed that feed additives had no significant effects on feed intake, but differences between weight gain means in day 21 were significant( P 0.05 ). Daily weight gain in group consumed diet include net montmorilonite in day 21 were 15 percent higher than control group also feed conversion ratio in this group were 12 percent better than control group. Same results were obtained with diets include net montmorilonite plus essential oils in day 21. In 21 _ 42 days there were not possitive effects but with using of montmorilonite additives in diets mortality percentages decreased about 39 % and production index increased about 7 %. This additive may have possitive effects on health and improvement of broiler performance.
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