Prevention of diseases of growing of replacement young chickens kept in cages

Acute and chronic diseases of the extremities (arthrosis, arthritis, necrosis of the thighbone, dislocation, injury, etc.) of chickens, especially of roosters, with their subsequent raising and keeping in cages, cause significant economic damage to poultry farms. The article presents the results of scientific and production experience consisting in using non-steroidal anti-inflammatory medications “Paracetam-AVZ” and “Ketoquin 10%” for the prevention of limb diseases in the terms of raising chickens of cross Hisex Brown in the cages. The studied medications contributed to an increase in the live weight in the experimental group: females – by 3.8% (P <0.05), males – by 6.6% (P <0.05), homogeneity in the live weight of females – by 2.3%, males – by 15.6% compared with the results in control group. The safety of males taking into account mortality and culling in the experimental group exceeded this parameter in control group by 6.3%. At the same time, the number of rejected males due to limb disease in the experimental group was 2.2 times lower than in the control group. Evaluation of the development of reproductive organs showed that in males the difference in testes mass in favor of the experimental group was 16.7% (P <0.01), the length of the oviduct in chickens was 20.8% (P <0.01). Thus, the use of the studied medications had a positive effect on the development of the reproductive organs of hens and roosters in the experimental group, which accelerated their sexual maturation and increased the intensity of egg-laying.