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Chromium propionate improves performance and carcass traits in broilers

Animal Nutrition 2020年第4期6卷 480-487页

作者： Veerle van Hoeck Mahendra Sonawane Antonio L.Gonzalez Sanchez iris van dosselaer Chris Buyens Dany Morisset Kemin Europa N.V. Animal Nutrition and Health EMENAToekomstlaan 422200HerentalsBelgium

There is evidence to suggest that poultry may have a dietary requirement for metabolically available chromium(Cr)that exceeds the amount provided through wheat soybean meal *** objective of the present study was to investigate the effects of dietary supplemental organic Cr from Cr propionate at different dose levels(control=0μg/kg,T1=200μg/kg,T2=400μg/kg)on the growth performance,carcass traits,and meat quality of *** gain and feed intake of each treatment were recorded at the start and after 14,28 and 35 d,and feed conversion ratios(FCR)were calculated ***35 d of age,birds were randomly selected and euthanized for carcass *** of the first trial indicate that both Cr propionate treatments increased final body weight(P<0.05),feed efficiency(P<0.05)and body weight gain(P<0.0001).Furthermore,Cr propionate supplementation improved(P<0.0001)all carcass ***,with increased Cr dosage,carcass yield,dressing percentage and breast meat yield increased linearly(P<0.0001).The second study reveals that the feed intake in the control group was significantly higher compared to both Cr propionate supplemented groups(T1&T2).Furthermore,the Cr propionate supplemented T2 group displayed a significantly lower FCR than the control and T1 group(P=0.027).Finally,Cr propionate supplementation increased the dressing percentage compared to control birds(P<0.0001).In the third experiment,Cr propionate supplementation(T1&T2)increased final body weight and decreased FCR compared with the control *** effects were highly significant(P<0.0001)throughout all feeding phases of the *** propionate supplementation also increased(P<0.0001)carcass yield,dressing percentage,breast meat yield,leg and thigh weights compared with the control *** conclusion,growth performance,feed conversion,carcass yield,breast and leg meats of broiler birds can be significantly improved by dietary inclusion of Cr *** pro

关键词： Chromium propionate Broiler Performance Carcass trait

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