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- Title
Effect of Feeding Hatchery Waste Meal Processed by Different Techniques on Egg Quality and Production Performance of Laying Hens.
- Authors
Mahmud, Athar; Saima; Jabbar, Makhdoom Abdul; Sahota, Abdul Waheed; Hayat, Zafar; Ullah Khan, Muhammad Zafar
- Abstract
Three hundred White Leghorn hens were randomly divided into 10 groups. One group was fed control diet prepared without hatchery waste meal (HWM), while nine groups were fed on experimental diets containing 4, 8 or 12 % of cooked, autoclaved or extruded HWM, respectively. Results showed that maximum egg production was achieved with 4% HWM processed by autoclaving. Processing of hatchery waste (HW) with extrusion significantly reduced egg production and more pronounced decrease was found with 12 % of extruded HWM. Egg mass and feed conversion followed the same trend observed for egg production. Average egg weight due to different treatments fell within very narrow range and showed no difference (P>0.05) among them. Shell, yolk and albumen weights, as a percentage of egg weight, were not significantly affected with the use of different levels and processing of HWM. Maximum value of albumen height as well as Haugh units were obtained with the feeding of 4 % autoclaved HWM. Other egg quality parameters like shell thickness, yolk index and color were independent of the dietary treatments. The findings of this study suggest that autoclaving of hatchery waste is better than extrusion and cooking techniques and 4 % of autoclaved HWM may be included in layers ration for improve production than diets without HWM. Nevertheless, layer diets up to 8 % HWM could be used to feed the laying hens to maintain reasonably good production without detrimental effects on egg quality.
- Subjects
LEGHORN chicken; EGGS; POULTRY hatcheries; INCUBATORS; POULTRY housing
- Publication
Pakistan Journal of Zoology, 2015, Vol 47, Issue 4, p1059
- ISSN
0030-9923
- Publication type
Article