Krasnoyarsk, Krasnoyarsk, Russian Federation
employee from 01.01.2010 until now
Nazarovo, Krasnoyarsk, Russian Federation
VAK Russia 4.1.2
VAK Russia 4.1.3
VAK Russia 4.1.4
VAK Russia 4.1.5
VAK Russia 4.2.1
VAK Russia 4.2.2
VAK Russia 4.2.3
VAK Russia 4.2.4
VAK Russia 4.2.5
VAK Russia 4.3.3
VAK Russia 4.3.5
UDC 63
UDC 636.92
The aim of the study is to evaluate the effect of the lactulose-containing prebiotic feed additive Vetelact on the digestibility of nutrients in complete granulated compound feed and the balance of minerals. Objec-tives: to determine the consumption and digestibility of nutrients by rabbits; to calculate the coefficients of nutrient digestibility; to study the average daily balance of nitrogen, calcium and phosphorus. The studies were conducted at the zoo farm of the Institute of Biology and Veterinary Medicine, and the zooanalysis laboratory of the Department of Zoology and Polytechnical Sciences. The experimental design consisted of the following options: control group (CG), the first experimental group: CG + 0.1 ml (prebiotic) per 1 kg of live weight, the second experimental group: CG + 0.2 ml (prebiotic) per 1 kg of live weight. Upon com-pletion of the experiment, the indicators of the control group rabbits were inferior to the indicators of their analogs from the first and second experimental groups in terms of metabolizable energy consumption by 19.42 and 9.28 MJ, or by 3.86 and 1.88 %; dry matter – by 1.44 and 0.69 kg, or by 3.87 and 1.89 %; crude protein – by 0.36 and 0.17 kg, or by 3.89 and 1.87 %; crude fat – by 0.07 and 0.03 kg, or by 4.29 and 1.88 %; crude fiber – by 0.14 and 0.07 kg, or by 3.70 and 1.89 %; NFE – by 1.07 and 0.51 kg, or by 3.89 and 1.90 %, respectively. Rabbits in the first and second experimental groups demonstrated superiority over animals in the control group in terms of dry matter intake (1.83 to 3.83 g/head), digestibility coeffi-cients (2.00 to 3.48 %), nitrogen deposition in the body (0.05 to 0.12 g/head), calcium absorption (0.04 to 0.11 g/head), and phosphorus absorption (0.04 to 0.1 g/head).
rabbits, Californian rabbit breed, prebiotic, lactulose, Vetelact, digestibility coefficient, nut¬rients, diet
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