Study of influence of proteolytic action fodder additive in the composition of feed on productivity and development of broilers chickens' internal organs
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Kuupäev
2020
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Abstrakt
In the system of comprehensive assessment of feed nutritional value, protein plays a
special role. With the correct selection of proteolytic enzymes in the diet and with appropriate
conditions (pH, temperature, duration and quantity of enzymes), most feed proteins can be
degraded to preferred degree in the body: either partially, limited by proteolysis, or deep and
complete – to individual amino acids, which is accompanied by an increase in animal
productivity.
The objective was to study the efficiency of using the exogenous enzyme Sibenza DP 100 in the
diet on productivity and development of broilers chickens’ internal organs. The experimental part
of the work was carried out under the industrial conditions of private limited company
'LISKoBroiler' on Ross 308 broiler chickens. When the proteolytic enzyme was added to the
birds’ diet without decreasing the nutritional value of crude protein and digestible aminoacids,
higher values of the average daily gain were observed among all experimental groups compared
to the control group, while reducing feed output per 1 kg of gain. While reducing the nutritional
diet value in accordance with the matrix by 2.5% for crude protein and digestible amino acids
and with the addition of the Sibenza DP 100 enzyme (500 g t-1), growing broilers was
characterized by a slight lag in live weight compared to the control group, but with the most
effective consumption feed per 1 kg of gain. The abovementioned system for the proteolytic
enzyme use had the most positive effect on the morphological structure of the pancreas of broiler
chickens.
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Märksõnad
enzyme preparation, protease, broiler chickens, pancreas, nutrient digestibility, intestinal length, articles