Volume 12, Issue 43 (spring 2008)
jwss 2008, 12(43): 473-480 |
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Rastad A, Samie A, Daneshvar F. Effect of Bactocell and Dry Whey on Performance and Carcass Characteristics of Broiler Chickens. jwss 2008; 12 (43) :473-480
URL: http://jstnar.iut.ac.ir/article-1-855-en.html
URL: http://jstnar.iut.ac.ir/article-1-855-en.html
Abstract: (29222 Views)
This experiment was conducted in a completely randomized design with five treatments and four replications. There were 15 chicks in each replication during the first 30 days and 10 chicks from day 30 to the end of experiment. Diets were control (without probiotic and dry whey) and levels 500 and 750 gm/ton probiotic, and each level contained two diets with and without %2 dry whey. Daily weight gain, feed intake, feed conversion rate at the end of each experiment and carcass characteristics including weights of neck, Liver, wing, heart, and abdominal fat on the 49th day of experiment were measured. Chicks which received diets with 500 and 750 mg/ton probiotic +%2 dry whey were significantly heavier than other chicks (p<0/05) between 0-21 days. Feed intake significantly increased during 3 periods including 0-21, 21-42, and 42-49 days of experiment, when chicks used diets with dry whey, especially diets containing 750 gm/ton probiotic (P<0/05). Blood plasma cholesterol significantly decreased when chicks used diets with dry whey. Also an increase in white cells was observed in days 21 and 35. Treatments did not have any significant effect on feed conversion rate, mortality and carcass characteristics (P>0/05).
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