Effect of Dietary Protein on Egg Production and Immunity Responses of Laying Hens During Peak Production Period
نویسندگان
چکیده
منابع مشابه
effect of dietary crude protein and methionine on egg production and egg quality of laying hens during phase ii
an experiment was conducted to evaluate the effect of dietary crude protein and methionine levels on quality and quantity of egg production. fifteen diets formulated with 3 levels of protein (13, 14 and 15%) and 5 levels of methionine (0.25, 0.28, 0.31, 0.34 and 0.37%) and fed to 420 birds in a 3×5 factorial arrangement. each diet was randomly fed to 4 replicates of 7 birds each and fed for 3 p...
متن کاملEffect of dietary protein sources on production performance, egg quality, and plasma parameters of laying hens
OBJECTIVE This study was conducted to evaluate the effects of dietary protein sources (soybean meal, SBM; low-gossypol cottonseed meal, LCSM; double-zero rapeseed meal, DRM) on laying performance, egg quality, and plasma parameters of laying hens. METHODS A total of 432 32-wk-old laying hens were randomly divided into 6 treatments with 6 replicates of 12 birds each. The birds were fed diets c...
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Eggshell quality is one of the most common problems in layer stocks. Results from the field have shown that the incidence of cracked eggs in layer stocks ranges from 1-2% to 30-35% (ALTAN and ALTAN, 1992). This problem is more specific in older flocks when the birds were raised under high environmental temperatures. The eggshell consists of 98% calcium carbonate. The necessary Ca for shell form...
متن کاملEffect of Dietary Supplementation of Liquid Prebiotic and Antibiotic on Egg Production, Egg Quality, Blood Parameters, Immune System Response of Layer Hens at Post Molt Period
Extended Abstract Introduction and Objective: The inclusion of prebiotics in layer hen diets can act as a growth-promoting antibiotic replacer and have beneficial effects on egg production and egg quality. This study aimed to investigate the effects of liquid prebiotic on the post-molt laying performance, egg quality at different storage temperatures and times, immune system function, and bloo...
متن کاملEffects of Dietary Marine Algae (Spirulina platensis) on Egg Quality and Production Performance of Laying Hens
In this experiment, a total of 128 Hy-line W36 hens at 63 weeks of age were used. The hens were put at random into 4 treatment groups (4 replicates and 32 hens per treatment) and were fed four different diets: three diets with different levels of Spirulina (1.5, 2.0 and 2.5%) and one control group based on wheat and soybean meal. All birds were housed in commercial cages, had ad libitum access ...
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ژورنال
عنوان ژورنال: International Journal of Poultry Science
سال: 2005
ISSN: 1682-8356
DOI: 10.3923/ijps.2005.701.708