Protected lipids and fatty acids in rations of feeding of cattle

Abstract

The purpose. To analyze results of domestic and foreign scientific probes of last years as to productive and metabolic influence, increase of productivity of fatty additives in rations of feeding of different age and productive groups of cattle. Methods. Analytical, theoretical generalization. Results. Results of own probes, domestic and foreign authors carried out in last years concerning metabolic and productive action of protected lipids and fatty acids at use of their additives in rations of feeding of different age and productive groups of cattle are brought. Conclusions. Utilization in structure of rations of different age and productive groups of cattle of additives of the protected fats and polyene fatty acids of vegetable origin stimulates metabolism at animals, increases their productivity and improves quality of milk and beef. The most effective is use in structure of rations of young stock and adult animals of additives of calcium salts of fatty acids made on the basis of sunflower, soybean, canol rape, linen and palm oils.Key words: cattle, feeding, lipids, fatty acids.Introduction. Numerous researches prove that application of added vegetable and animal fats in animal diet makes stimulating effect on metabolism, intensity of the animal growth and development, forage payments, slaughtering output, food and biological value of animal products [3]. Such effect is forced by high-energy coefficient of fats, their nitrogen-holding action in bodies, positive impact on regulation of metabolic processes, accumulation of fat-soluble vitamins in tissues [5]. Modern intensive technologies of animal breeding expect, as a rule, application of added fats in diets.Peculiarities of anatomy and functioning of intestinal track force some substantial differences in application of added fats in diel of ruminants, as compared to nonruminant ones. Particularly, there are some peculiarities in application of added fats in diets of cattle because of presence of forestomaches and importance of symbiotic rumen microorganisms in digestive processes and metabolism [26]. It is confirmed that high level of vegetable and animal fats in cattle diets, in the period of active functioning of forestomaches, inhibits metabolic activity of a set of rumen microorganisms. It is also demonstrated that intensive breakdown of alimentary lipids and hydrogenation of polyenoic fatty acids by ferment systems of microorganisms in cattle forestomaches, results in degradation of a considerable amount of essential (linoleic and linolenoic) and other fatty acids, making negative impact on food and biological quality of milk and beef. Considering the above-mentioned reasons, countries with developed cattle farming have lately carried intensive scientific researches concerning increase of efficiency of added fats application in diet of the kind of animals.The present article gives results of personal researches, as well as of domestic and foreign authors of the latest years concerning metabolic and productive effect of protected lipids and fatty acids ...

Effect of supplementation different levels of calcium salts of fatty acids on performance and some blood biochemical in male Holstein calves

“…They suggested that rumen-inert dry fats are used to avoid interference with rumen function that in turn could decrease nutrients supplied by the rest of the ration ingredients. It is known that application of fat supplements in a diet of cattle increases their caloric content and makes positive impact on milk productivity, feed payment as well as growth and development of animals [VOVK et al, 2006] .…”

“…Such products are easily handled and are more inert in the rumen than native fats. The unsaturated fatty acids in calcium soap products are only partially protected [VOVK et al, 2006] .…”