Animal Science and Food Technology

The various options effectiveness for meat production volume incensement has been investigated in conditions of modern poultry complex 71 (maintenance of Cobb-500 broilers in 3-tier cage batteries TBB-AB, produced by Ukrainian company Texha). Each group of broilers (1 control and 4 experimental) has been settled in 54 cages (area is 1.93 m2 ), including the first group settled within 40 broilers, the second one within 45, the third one – 50, the fourth one – 55, and the fifth one – 56 broilers. The growing age conducted to be 42 days. In contradistinction of other groups, 30 % (several amount) of the fifth group has been sent for slaughtering at the age of 31 days, and the remained part of broilers has been maintained for 42 days. During the experiment broilers the livability corresponded to the normative requirements (95,1-96,2 %), body weight at 42-day-old age (2718-2898 g), the increase (63,9-68,2 gram per day), coverage ( 345-495 cm² / broiler). But, the cage grid surface load in all groups except the fifth group has exceeded the permissible item (110 kg). In particular, in the second and fourth experimental groups this excess has reached 11.7-32.1 kg or 10.6-29.2 %. Two ways of eliminating this shortcoming have been analyzed. The first option is to reduce the broilers growth period for 35-40 days depending on their weight and density of keeping, which is associated with a number of technological inconveniences. According to another option, much more technological way, the broilers are grown to the preset age (38 or 42 days), sending before (at the age of 31 days) a certain number for slaughtering from each cage. This improvement of classical broilers growing cage technology provides an increase of production volume for 24.2 %, with unconditional fulfillment of the regulatory requirements for density and load of the cage grid surface.

growing of broilers, cage technology, density of keeping, a grid, poultry farming, and technology improvement