Determining biological effects of functional amino acid supplementation in low crude protein diet on growth performance of layer chicken

• Main Authors: Mohan, Tenesa, Loh, Teck Chwen, Foo, Hooi Ling, Samsudin, Anjas Asmara @ Ab Hadi, Saad, Wan Zuhainis, Mohamad, Rosfarizan, Abdul Rahim, Raha
• Format: Conference or Workshop Item
• Language: English
• Published: Faculty of Veterinary Medicine, Universiti Putra Malaysia 2013
• Online Access: http://psasir.upm.edu.my/id/eprint/41220/1/41220.pdf; http://psasir.upm.edu.my/id/eprint/41220/; http://www.vet.upm.edu.my/dokumen/90301_proceeding_WPSA_V2_first_second_XX_new_20121013_%281%29.pdf

This investigation sought to determine the biological effects of functional amino acids on the growth performance of layer chickens. A total of 144 Hisex Brown hens were allocated into 4 groups that were each fed low crude protein diet from 16 to 32 weeks of age. Diets contained 17.5% CP (control group), 17.5% CP, 17% CP and 16.5% CP and were supplemented with limiting AA (methionine, lysine and threonine). Weekly feed intake, egg weight, hen-day egg production and feed conversion ratio (FCR) were collected. There was no significant difference (P>0.05) among the treatment groups on overall feed intake, egg weight and egg mass. Significant higher (P<0.05) overall hen-day egg production was observed in all treatment groups compared with the control. Overall, 17.5% CP diets resulted in better egg production than other treatments.