Effect of full fat soybean and dehulled soybean meal on laying performance and egg quality
2011
Reya Mathong(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Suwanvajokkasikit Animal Research and Development Institute. Poultry Production Research and Development Center) | Sarassanan Sukphimai(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Suwanvajokkasikit Animal Research and Development Institute. Poultry Production Research and Development Center) | Sukanya Juttupornpong(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Suwanvajokkasikit Animal Research and Development Institute. Poultry Production Research and Development Center) | Waraphan Jintanavich(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Suwanvajokkasikit Animal Research and Development Institute. Animal Nutrition Research and Development Center)
Total of 288 pullets aged 25 weeks were divided into 4 groups. Each group of the animals contained 6 replications of 12 pullets each. The animals were randomly assigned to be fed with 4 experimental diets as following. Diet1: corn-soybean meal and rice bran diet, Diet 2: Corn-soybean meal and extruded full-fat soybean diet,Diet 3: Corn-dehulled soybean meal and rice bran diet and Diet 4: Corn-de-hulled soybean meal and extruded full-fat soybean diet. Results showed that layers fed diet 1 had the highest feed intake in every period. Layers on diet 3 and 4 tended (P = 0.07) to have better hen-day production and layers fed Diet 2, 3 and 4 had significantly (P LT 0.05) better feed per dozen egg values than those fed Diet 1. Hens fed Diet 2 and 4 had higher yolk colour scores than those fed Diet 1 and 3 (P LT 0.01). Results showed that substitution of de-hulled soybean meal and extruded full-fat soybean for regular (non-dehulled) soybean meal and rice bran can reduce the egg production cost as well.
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