[Productivity of hens at use of feed additives produced by method of microbiological synthesis in compound feeds]
2008
Dadashko, V.V., Belarus Regional Experimental Poultry Station, Zaslavl (Belarus) | Gorchakov, V.Yu., Grodno State Agrarian Univ. (Belarus)
Application of fodder additives KD-K and KD-L in mixed fodders of hens instead of a part of sunflower oil - seed meal (shrot) has promoted preservation of productivity at high level. The morphological structure and incubatory qualities of eggs of hens provide reception of high-grade and healthy young growth. From two tested fodder additives the best indicators on the majority of signs are established at the hens receiving 5,0% of fodder additives KD-K and KD-L from weight of mixed fodder. Use of the fodder additive of KD-L in feeding of hens has allowed to receive economic benefit counting on 1000 heads - 690 $ in comparison with the control and 25 $ in comparison with the fodder additive KD- K. The optimum norm of the fodder additive KD-L from weight of forage in mixed fodders for hens-layers - 5% is established. The highest indicators of insemination (90,2% and 90,8%) and breeding of chickens (85,9% and 85,5%) are established. For an establishment of viability the chickens after incubation have been placed in poultry house for husbandry of remontant young growth and they were observed within 10 days. A diet for the first age without entering of studied fodder additives for feeding of chickens was used. During experience chickens of all experimental groups possessed good appetite and actively added in alive weight. It is not established at chickens of any diseases. Safety of young growth was high (99 - 100%)
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