Utilization of High Levels by Ruminant By-product Meal in Diets for Male Turkeys When Using Digestible Formu
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چکیده
s of papers 9 The objective of this experiment was to determine differences between 10 breed crosses with regards to eggshell properties and embryo metabolism. Eggs from the flocks (51 to 54 weeks of age) were incubated in a single machine, moisture loss measurements were recorded. Additionally, embryo weight with out yolk (EMB) and residual yolk weight (YLK) were determined at 15, 18 and 21 d. Average daily moisture loss (% of initial egg weight ) demonstrated significant differences and ranged from 0.665% to 0.561%. Significant differences in EMB and YLK existed at 15 and 18 d but not at 21 d. Correlation between EMB and YLK at 21 d ranged from r = -0.99 to -0.54. This information demonstrate differences between breed crosses for the functional properties of the eggshells. These differences may also influence metabolism and embryo growth.
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