Effects of Feeding Betaine on Performance and Blood Hormone in Laying Hens
2006
Park, J.H. (Chonbuk National University, Jeonju, Republic of Korea) | Kang, C.W. (Chonbuk National University, Jeonju, Republic of Korea) | Ryu, K.S. (Chonbuk National University, Jeonju, Republic of Korea), E-mail: [email protected]
An experiment was conducted to investigate the effects of dietary betaine on egg production, estradiol, progesterone, and melatonin secretion in laying hens. Seventy two ISA-Brown laying hens were placed into individual cage and fed four different levels of betaine (0, 300, 600, 1,200 ppm) in diets for four weeks. Basal diets were mainly mixed with corn-soybean and contained 2,800 kcal/kg ME and 16% CP. Dietary supplementation of betaine showed significantly higher (p less than 0.05) egg weight and daily eggmass than controls, but did not have consistent influence on the egg production.
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