Gas-energy metabolism in heifers of a new population of hornless beef Simmental cattle under different housing technologies under the conditions of the Bukovina region
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 104, Issue
Abstract
Based on research materials, the gas-energy metabolism of Simmental heifers of a new population under different housing conditions in the forest-steppe zone of the Bukovina region is highlighted. It is established that the amount of oxygen consumed by the animals of the second experimental group was reliably low (1.50 l / min), which is 12.3% less than in control. It was concluded that the highest frequency of respiration was in the animals of the first experimental group (21.00 times / min.), whereas in the control and second experimental group this indicator was 18.61 and 19.94 times / min, respectively. It is shown that an increase in heat production in stabled animals was higher due to more intensive ventilation of the lungs and higher frequency of respiration compared with the heifers of the second experimental group, which were loose inside. Studies have shown that the pure energy reflected in the increment of live weight per 1 kg of exchangeable mass of experimental animals was the lowest in the control group (178.29 kJ), in the first and second test groups it was by 7.09 and 59.07 kJ higher, respectively.
Authors and Affiliations
А. К. Калинка, О. Б. Лесик, М. Б. Довгань-Мартинюк, Л. В. Казьмірук
Keywords
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