Effects of glucosinolates and their hydrolysis products on biochemical and performance parameters in broiler chicken diets

Authors: BELENLI, DENIZ - Uludag University; POLAT, UMIT - Uludag University; Berhow, Mark; ORMAN, ABDULKADIR - Uludag University; YESILBAG, DERYA - Uludag University

Submitted to: Indian Journal of Animal Sciences
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/16/2016
Publication Date: 10/1/2016
Citation: Belenli, D., Polat, U., Berhow, M.A., Orman, A., Yesilbag, D. 2016. Effects of glucosinolates and their hydrolysis products on biochemical and performance parameters in broiler chicken diets. Indian Journal of Animal Sciences. 86(10):1165-1171.

Interpretive Summary: Glucosinolates are important bioactive molecules and widely found in Brassicaceae species (cress, brussels sprouts, mustard, broccoli, kale etc.). Depending on the amount of these vegetables consumed, both positive and negative metabolic effects from glucosinolate metabolites may occur. The aims of this study were to; investigate inexpensive animal food sources that both increase weight gain and provides enhanced performance parameters without adversely affecting the animal’s health and metabolism; to evaluate dose adjustment of food containing glucosinolates in animals; and to evaluate changes in the biochemical and performance status of chickens on these glucosinolate containing diets. Brolier chicks were fed diets containing 0.05%, 0.1% and 0.15% cress seeds which contain glucosinolates. Serum samples were evaluated for serum glucose, adiponectin, leptin, growth hormone, estradiol and cortisol levels. Performance parameters investigated included feed intake, live body weight and feed conversion ratio. The results showed that dietary glucosinolate supplementation as feed additive did not significantly improved the dietary performance, or carcass parameters of broiler chickens. Feed intake and female live weights were the highest in those receiving 0.1% cress seed in their diets. This study shows that glucosinolate containing seed meals do not have a substantial negative impact on feeding chickens.

Technical Abstract: Glucosinolates are important bioactive molecules and widely found in Brassicaceae species (cress, brussels sprouts, mustard, broccoli, kale etc.). Depending on the amount of these vegetables consumed, both positive and negative metabolic effects from glucosinolate metabolites may occur. The aims of this study were to; investigate inexpensive animal food sources that both increases weight gain and provides enhanced performance parameters without adversely affecting the animal’s health and metabolism; to evaluate dose adjustment of food containing glucosinolates in animals; and to evaluate changes in the biochemical and performance status of chickens on these glucosinolate containing diets. A total of 624 one day-old Ross 308 broiler line chicks were divided into one control and three treatment groups. Chicks were fed ad libitum with commercial broiler diets with cress seed added according to the treatment groups. Cress seed (Lepidium sativum) was added 0,05% for the first treatment groups (Group 1, 10 g/kg), 0,10% for the second treatment groups (Group 2, 20 g/kg) and 0,15% for the last treatment groups (Group 3, 31 g/kg) to the diet. Serum samples were evaluated for serum glucose, adiponectin, leptin, growth hormone, estradiol and cortisol levels. Performance parameters investigated included feed intake, live body weight and feed conversion ratio. The results showed that dietary glucosinolate supplementation as feed additive (0.05, 0.10 and 0.31 g/kg) did not significantly improved the dietary performance, or carcass parameters of broiler chickens. Feed intake was the highest in group 2 (0.10 g/kg), female live weight was the highest in group 2 (0.10 g/kg) and 3 (0.31 g/kg).