Reproduction in White Leghorn Males Fed Various Levels of Dietary Calcium
نویسندگان
چکیده
منابع مشابه
Effect of Different Levels of Dietary Crude Protein, Lysine and Methionine on Performance of White Leghorn Laying Hens
Objective: An experiment was conducted to study the effect of feeding of different levels of dietary crude protein (17.5, 16.5 and 15.5%) with varying levels of lysine (0.77, 0.73 and 0.68%) and methionine (0.36, 0.34 and 0.32%) on performance of white leghorn layers from 34-53 weeks of age. Methodology: Each diet was fed ad libitum to 12 replicates consisting of 88 birds in each replicate. Egg...
متن کاملPhytase supplementation improved growth performance and bone characteristics in broilers fed varying levels of dietary calcium.
An experiment was conducted to investigate the effect of dietary Ca level on the efficacy of phytase. A total of 288 male Ross × Ross 708 broilers with initial and final BW of 37 and 705 g, respectively, were used in brooder batteries from 0 to 21 d posthatch. Each treatment had 8 replications with 6 broilers/replicate pen. All diets were corn-soybean meal based and formulated to contain 1.26% ...
متن کاملVarious dietary levels of protein and energy interaction on growth performance of white plumage japanese quails
Aim Materials and Methods
متن کاملBone-Remodeling Transcript Levels Are Independent of Perching in End-of-Lay White Leghorn Chickens
Osteoporosis is a bone disease that commonly results in a 30% incidence of fracture in hens used to produce eggs for human consumption. One of the causes of osteoporosis is the lack of mechanical strain placed on weight-bearing bones. In conventionally-caged hens, there is inadequate space for chickens to exercise and induce mechanical strain on their bones. One approach is to encourage mechani...
متن کاملeggshell formation in Tsaiya ducks and Leghorn hens. DIETARY CALCIUM EFFECT ON CALCIUM AND MAGNESIUM CONTENT IN EGGSHELL
Tsaiya ducks and Leghorn hens are the two major laying birds raised in Taiwan. They are all excellent egg layers. Tsaiya ducks are small in body size (1.3 kg) with bigger egg weight (65 g) and stronger eggshell breaking strength than eggs from hens. The eggshell consists mainly of calcium carbonate, hence calcium plays an important role in the eggshell formation. Magnesium is also present in eg...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1969
ISSN: 0032-5791
DOI: 10.3382/ps.0480798