Effects of calcium sources on egg production and egg shell quality of laying hens
1998
Niwat Muangkeow | Suda Chaumchayhan | Kasorn Khaengsong | Watcharin Chumanee | Sunaree Nhuthong | Ekgkapon Bhunyasa (Rajamangala Institute of Technology. Nakhon Si Thammarat Campus, Nakhon Si Thammarat (Thailand). Faculty of Agriculture. Dept. of Animal Science)
Experiment was conducted to determine dietary calcium sources on egg production and egg shell quality of laying hens. 144-Dekalb Warren were fed broken rice-soy bean meal-fish meal diets containing calcium as oyster shell, limestone+0.75 percent vegetable oil, limestone+3.0 percent vegetable oil and gypsum. Egg production performance was significantly decreased (P=0.05) when gypsum supplied. Egg weight was not adversely affected with dietary calcium sources. Egg mass was respond the same trend with hen day egg production. Feed consumption was no significance different (P
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