RT Journal T1 EFFECTS OF FULL-FAT CANOLA SEED WITH AN EXOGENOUS ENZYME SUPPLEMENTATION ON PERFORMANCE, CARCASS CHARACTERISTICS AND THYROID HORMONES OF BROILER CHICKENS A1 V. Rezaeipour A1 A. Agharajabi A1 S. Ghareveisi A1 M. Norozi JF Journal of Animal and Plant Sciences JO JAPS SN 1018-7081 VO 25 IS 5 SP 1233 OP 1237 YR 2015 FD 2015/10/01 DO DOI NA AB

This research was performed to determine the effects of full-fat canola seed with enzyme supplementation on performance, carcass characteristics and thyroid hormones (T3 and T4) in broiler chickens. Two hundred and forty one_day-old chicks (ROSS 308) were used in a 2×4 factorial design with three replicates per each treatment. Treatments were 2 levels of enzyme supplementation (0 and 5 g/kg of diet) and 4 inclusion rates of full-fat canola seed (0, 30, 60 and 90 g/kg of diet). The results showed improved (P<0.05) broiler performance by inclusion of full-fat canola seed. Linear improvement was noted in feed conversion ratio (P<0.05) with an increase in dietary levels of canola seed. However, effect of enzyme supplementation on growth performance was not significant (P>0.05). Carcass characteristics, except for liver and pancreas percentage, did not influence by either full-fat canola seed levels or enzyme supplementation. The results of thyroid hormones indicated that use of canola seed, irrespective of enzyme supplementation, in diets changed T3 and T4 concentration at 7 and 42 days of age in broilers. In conclusion, use of full-fat canola seed in broiler diets had positive effect on growth performance.

K1 broiler; full-fat canola seed; performance; thyroid hormones PB Pakistan Agricultural Scientists Forum LK https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-168