Causes of Hair –Cracked and Dirty Eggs in Laying Hens
Keywords:
dirty eggs, hair-cracked eggs, laying hensAbstract
Egg quality characteristics play a crucial role, particularly in the context of production efficiency. Special emphasis is placed on the quality of the eggshell, as cracked shells lead to significant losses for market-egg producers. In this respect, evaluate factors affecting the egg quality characteristics are very important. Maintaining clean eggs is crucial not only for the fresh-egg market but also for hatcheries, where dirty eggs significantly lower the likelihood of producing healthy chicks. Several factors contribute to the presence of dirty eggs in laying hens, with key issues being their health and nutrition, which are frequently interconnected. The percentages of eggshell breakage and dirty eggs are influenced by water consumption, flock age, perches, cage design, group size hen density, genotype.
Regarding the different causes of hair crack and dirty eggs we conclude that diets with increasing sodium concentrations gave a significant increase in the proportion of excreta contaminated (dirty) eggs. In diet when you give vitamins only at NRC levels presented an extremely high cracked egg and dirty egg rate. Furnished cages systems give a higher proportion of cracked eggs; In organic housing system the proportion of dirty egg increase and the litter system cracked eggs proportion is higher. Hy-line Brown (HYB) had more cracked eggs proportion than Hy-line White (HYW) and Lohmann Selected Leghorns (LSL) which had more proportion of dirty egg. White egg hens have a more incidence of cracked eggs than tinted, brown and dark brown egg hens. Perches access during egg laying resulted in a greater percentage of dirty eggs. Increasing in the bird age resulted in increase of cracked eggs.
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