The influence of alimentary factors on productivity hens


  • B. Ya. Kyryliv Institute of animal biology NAAS
  • A. V. Hunchak Institute of animal biology NAAS
Keywords: young chickens, laying hens, egg, egg yolk, biologically active substances

Abstract

In the process of ontogenetic development chickens determined appropriate age periods characterized by inhibition of metabolism. These changes are most clearly observed changes during the primary feathers on second (main), and at the age preceding puberty and lead to lower projected laying hens. Therefore there is a need for correction of metabolic processes in the body of young birds by using biologically active substances.The results of studies on the efficiency in feeding of young chickens egg productive direction sulfate and polyenzyme drug «Natuzym». It is shown that in comparison with those of control group in poultry, the introduction into the diet of chickens egg productive direction cross «Hayseks brown» Sodium Sulphate with 10 days old and polyenzyme drug «Natuzym» of 20– to 40–day and 80–110 –days age led to an increase in average daily increments calves and body weight at the beginning of entry of birds. The positive effect of additives on the performance puberty of birds. The difference between age of first egg demolished bird control and experimental groups of four days. Later chickens experimental group also characterized higher ripening indicators such as age reaching 50% egg age and achieve peak performance. In particular, the difference of analog control group was 2 days. Was higher and egg chickens 18.53 pc. eggs per laying hen high. In this group of bird egg shell weight and his strength were higher compared with those in the control, respectively, 9.23% and 9.26% (P <0.05). However, biological and food quality was improving of eggs obtained by increasing the content of carotenoids, vitamins A and E (P <0.05) and soluble protein (P <0.001)

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Published
2016-10-28
How to Cite
Kyryliv, B., & Hunchak, A. (2016). The influence of alimentary factors on productivity hens. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences, 18(2), 287–291. https://doi.org/10.15421/nvlvet6762