Analysis of the feeding schemes has shown that higher nutritious diet of the calves raised up to 6 months of age can be provided by increasing the share of mineral substances of organic nature-the organic microelement complex (OMEC). The research studies have found that the OMEC has a positive impact on the feed palatability and beef production. As evidenced by morphological and biochemical composition of blood, the organic microelement complexes intervention into the mixed fodders MF-1, MF-2 and MF-3 activates metabolic processes in the body of the animals, with the total protein concentration accurately to increase by 7.7-7.8% (Р<0.05), glucose-by 4.7-6.3% (Р<0.05), and the urea level to be down by 13.0-14.3%. The tendency of red blood cells, hemoglobin, alkali reserve, calcium, phosphorus, magnesium, iron, zinc, copper to increase by 1.6-10.3% has also been established. The OMEC integration into the composition of the complete fodders MF-1, MF-2 and MF-3 for young cattle increases the average daily gains by 9.5-12.3% (P<0.05) depending on the age, with the feed costs for 1 kg of gain to be cut by 7-10%. The organic microelement complex helps to reduce the gain costs by 7.0-10.9%, depending on the age of the animals. Taking into account positive results of testing the premixes containing the OMEC on young cattle in a production environment, it is recommended to use the supplement studied as a component of a feedstuff in industrial complexes and specialized farms for beef production at the rate of 10% of the existing norms of trace elements in model formulations.
The purpose of this research was to study the possibility of cattle breeding in a radioactively contaminated area and to develop methods of purifying the animal body from cesium-137 before slaughter to obtain environmentally safe meat. Experiments were conducted on 4 groups of calves of Simmental breed grown with the cows and after weaning in a feedlot or in a fattening complex. The density of radioactive contamination by cesium-137 in the core sector was up to 925 kBq/m 2 , out at grass 851-1110 kBq/m 2 , in the "Clean" area, where the fattening complex was located to 185 kBq/m 2. For the period of cleaning the calves-body with clean feeds, the decrease multiplicity of the cesium-137 content in comparison with the control was 17.0-33.7 times, respectively. Similar results were obtained in the study of animal internal organs (heart, liver, lungs and kidneys). The meat production was safe for use in human food.
Abstract. Levakhin VI, Gorlov IF, Azhmuldinov EA, Levakhin YI, Duskaev GK, Zlobina EY, Karpenko EV. 2017. Change in physiological parameters of calves of various breeds under the transport and pre-slaughter stress. Nusantara Bioscience 9: 1-5. The purpose of the research was to study the effect of the animal breed on the stress resistance of young cattle during the motor transportation. Six groups of animals were chosen for the experiment. The first group consisted of calves crossbred from dairy Black and White cows with Hereford bulls, the second -of calves crossbred from dairy cows of Bestuscheff breed with Hereford bulls, the third -of calves purebred of Simmental, the fourth -of calves purebred of Hereford, the fifth -of calves purebred of Aberdeen-Angus, and the sixth -of calves purebred of Limousine breed. The total length of transport was 180 km of highways and local roads. The route consisted of a 5-hour trip without a rest period. The greatest loss in the body weight was determined in the Limousine calves. The calves purebred of Hereford and Simmental breeds are more stress-resistant during the transporting and the pre-slaughter treatment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.