بررسي اثر منابع مختلف پروتيين حيواني و گياهي بر عملكرد جوجه هاي گوشتي

Effects of various vegetable and animal protein sources on broilers performance parameters

This experiment was conducted to evaluate various protein sources with animal or vegetative origin and their mixture in broiler diets. The diets were isocaloric and isonitrogenous and similar in their levels of two limited amino acids (methionine and lysine); six diets were formulated with respect to sources of proteins and their combination including: fish meal (diet A), soybean meal (diet B), and sunflower meal (diet E) and soybean meal+sunflower meal (diet F). Each diet was fed to five replicates of fifteen broiler chicks (one-day old), Diet A compared with other diets decreased weight gain, feed intake and feed efficiency (p<0.05). The best results were obtained by chicks fed diets D and E that had a mixture of animal and vegetative protein sources and improved chicks performance (p<0.05). During of this study no significant differences were observed in chicks performances by diets B and C. Chicks fed diet F had maximum feed intake but weight gain was not accordance to feed intakes and therefore, lowere feed efficiency.