| ||||
|
|
|
|
|
Hatchery By-Product Meal, Hatchery Waste MealDescription:The wastes associated with a poultry hatchery (shells of hatched eggs, infertile eggs, dead chicks, unsaleable chickens, etc.) can be made into a supplemental protein and mineral source, by cooking, drying and grinding the material into a meal. The calcium content can be quite high depending upon what proportion is derived from eggs. Caution:Needs to be properly heat treated during the processing to assure that all pathogenic organisms are destroyed. Raw eggs contain avidin (a protein), which ties up biotin making unavailable to the animal, thus resulting in a biotin deficiency. Heating will destroy the avidin. Feeding Experiments:When hatchery by-product meal was incorporated into diets at the 8 and 16% level replacing soybean meal and meat and bone meal and fed to layers performance was not found to be different (1) (CAB 771462738) (Vanderpopuliere, 1977). Hatchery by-product meal was included in diets being fed to pullets at 3.6, 7.25, 10.5, or 14.1 % and the 7.25 % and 10.5 % was found to reduce egg production and feed conversion (2) (CAB 771453673) (Zohari, 1975). Another experiment showed no difference in performance when hatchery by-product meal was fed to layers (5) (CAB N223792) (Dufloth, 1987). Broiler growth, feed conversion and intake was decreased when hatchery by-product meal fed, but this might have been related to the elevated levels of dietary calcium (3) (CAB 771453710) (Zohari, 1975). A turkey feeding trial shown that feed conversion improved when hatchery by-product meal was compared to bone meal (6) (AGRIS 97-162837) (Lilburn, 1997). Hatchery by-product meal improved intake and dry matter digestibility when fed to goats rice hulls (4) (CAB 981412033) (Belewu, 1998). Nutrient Characteristics:
ReferencesAbstracts | ||||||||||||