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The research was conducted on 286 fattener carcasses chosen from mass population in three different regions of the country. On the carcasses, fat thickness measurements were performed on the carcass cross section as well as fat and the longest back muscle thickness measurements on two cross sections of the loin. Carcasses, depending on their weight, were divided into three groups, i.e. of the average...
The study was conducted on 32 crossbred fatteners (Polish Landrace x Polish Large White) x Pietrain fed a feed containing 0 or 6% soybean oil after they reached 70 kg of body weight. The fatteners were slaughtered at 0, 12, 24 and 36 days after commencement of feed administration. Feed supplementation with soybean oil did not cause any significant differences in daily gains or feed conversion per...
The aim of the respective investigations was to determine the intensity of body weight gain of fattened pigs and to assess their carcasses. The fattening lasted 100 days in the autumn-winter period of 1984/1985. The experimental material consisted of 80 fattened pigs (by 40 heads of each breed) kept in groups by 20 heads. The animals came from the massy rearing. The data obtained concerned 35 Puławy...
The respective investigations comrised 96 fattening pigs (young boars and gilts) of the White Large Polish breed of an initial body weight of about 30 kg, divided into 6 groups. Animals were fed full-ration mixtures. The digestible total protein content in feeds for animals of the I, II and III group was in accordance with values recommended by standards, while in the IV, V and VI group it was lowered...
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