The Journal of Applied Poultry Research · 2002 · 14 citations · 11 references
AgricultureAnimal SciencesPoultry ScienceAnimal NutritionPoultry NutritionPoultry ReproductionEgg FertilityEgg ProductionEgg QualityLaying Hen NutritionNutrient UtilizationNutritional Effects On ReproductionDietary Mineral SupplementationDietary Supplementation EffectsEgg Fertility DeterminationEgg Moisture ContentHatch Residue AnalysisReduced Egg ProductionSoybean Meal InclusionSoybean Meal Supplementation
A 56-d experiment was conducted with 32-wk-old Single Comb White Leghorn hens to investigate the influence of dietary supplementation of vanadium (V) on performance, hatchability, hatch residue, and excreta moisture. Ammonium metavanadate was added to a corn and soybean meal control diet to supply 20, 40, or 60 mg V/kg diet. A concentration as low as 20 mg V/kg diet caused a decline in egg interior quality and percentage of total hatch and an increase in excreta moisture. Feeding 40 and 60 mg V/kg diet resulted in a significant increase (P ≤ 0.05) in excreta moisture and decreased feed consumption, egg fertility, hatchability, and egg production. Embryo malposition was unaffected by dietary V, but embryonic mortality and unpipped eggs were increased by dietary concentrations of 60 mg V/kg diet.
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THE HAUGH UNIT FOR MEASURING EGG QUALITY
R R Haugh · Medical Entomology and Zoology · 1937 · 967 citations
David E. Hapeman, Alan Agresti · Technometrics · 1991 · 814 citations
Metal toxicity for rabbit alveolar macrophages in vitro
Michael D. Waters, Donald E. Gardner, Catherine Aranyi et al. · Environmental Research · 1975 · 178 citations