[Biological foundation, development and use of complete feeds and premixes for boars, sows and growing swine in the conditions of intensive pork production]
2008
Niyazov, N.S.
The research aim is to develop and to demonstrate formulations of compound feeds, premixes and feed additives for increasing a productivity of boars, sows and growing swine. Another aim is to correct the nutrient requirement of swine at complex control of ration productive effect. The feeds and premixes developed contain different levels of raw protein, essential amino acids, metabolizable energy, grass meal, animal fat, the additions of ascorbic acid, choline chloride, feed antibiotic phradizine 5, manganese and selenium salts. They are tested in farming conditions. It is shown that the feeds suggested contribute to boar ejaculate volume increase by 18.7%, improve sperm number and its survival rate. It is recommended for sows to use the compound feeds with protein level of 145 g per kg in a pregnant period, the one of 153 g per fk in a lactation period and with grass meal of 12% and 9% per weight respectively. It is necessary to normalize metabolism and to realize sow productive potential. It is recommended to use the choline chloride containing premixes, the ones with Mn, ascorbic acid and Frazidin 5 for improving reproduction productivity of pregnant and lactating sows.
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