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Experiments have been carried out on 28 sows of the wbp breed during three reproduction cycles. These experiments were to determine if it was better to wean the piglets after 21 /W/ days or 28 /P/ days and what influence on production results would have the use during the whole pregnancy of a mixture containing 12% of raw protein increase during the last month of pregnancy /I/ or the feeding with...
Experiments concerning the possibility of using large quantities of lucerne meal instead of barley for farrow and feeding sows throughout three breeding cycles. Gilts were divided at random into three groups of 10 and fed individually. Sows from the first group were given a fill containing 10% of lucerne meal instead of barley, the second group was fed 30% and the third group 50% of this component...
The selenium content in 171 grain and 12 potato samples (silaged steamed potatoes) from various parts of Wielkopolska has been determined. The mean content of the selenium in grains has been found to be 0.361 mg (from 0.127 to 0.813 mg), and in potatoes 0.143 mg (from 0.113 mg to 0.186 mg) per one kilogram of dry matter. No distinct regional differences have been observed. The retention of selenium...
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