O.V. Ivanova
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Summary. Purpose of the research was to study the different ways of growing of piglets to better develop the capacitive system of breast sows, retain and grow not only large but also small-fruited piglets. The research was conducted in swine farms in the Krasnoyarsk region in 2006-2007 on cross-breed pigs, received as a result of breeding sows of big white breed with breed Landrace, in 2008 – on pigs Landrace. Pigs of the control group were grown under natural mother. During the formation of the test groups on not occupied by the relatives piglets and functioning nipples sows offer them newborn piglets from several nests, so that the newly formed nests all the piglets were strangers in relation to the admission sow. Term farrowing foster mothers was in time with the birth подсаживаемых piglets. In each of the control and experimental group was formed on 5 jacks sows with piglets. In the first experiment studied the effectiveness of various ways of replanting piglets under sows. Nests in which all pigs were prescribed and Alexander received on the functioning nipples to nonnative the sow had a live weight, exceeding targets by 0,1 %, milking sows – by 8.7 %. In the second experiment studied the effectiveness of the growing of piglets in the nests formed selected. It is established, that in nests, consisting of «medium» at the birth of pigs (weight 1,300-1,599 kg) were obtained the best results beyond the data of the control group in live weight of 4.6 %, milk of sows – by 15.7 %. In the third group experience manned the newborn piglets, depending on their gender: in the 2nd experimental group were concentrated mumps, in the 3rd experimental group – хрячки. The studies found that when the 40 days of age live weight of pigs exceeded the benchmark by 5.0 %, boars – by 0.2 %. In sows feeding pigs milking was higher than in the control group by 8.5%, feeding boars – by 4.3%. Safety of piglets experimental groups was the same and exceeded the benchmark of 4.7%. Thus, in order to increase the efficiency of production of pork can be recommended commodity farms mass опоросах redistribute newborn piglets between the pockets. In the newly formed nests number of pigs must match the number of lactating nipples sows. All pigs in the nest must be alien in relation to the sow, aligned live-weight (large, small, medium), and be of the same sex (only хрячки or only pigs). This will allow better use of natural milking sows, reduce the risk of occurrence of diseases of the breast, to increase live weight and safety of pigs, to ensure equal conditions of existence, taking into account their physiological and ethological features.
Keywords: piglets-сосуны, newborn piglets, the infusion of pigs, gender, large-fruited, Jack, safety, milking sows.