Berschauer F, Rupp J, Ehrensvärd U
Arch Tierernahr. 1984 Jan;34(1):19-33. doi: 10.1080/17450398409425167.
Rations containing 12% sunflower oil (Ration II) and 12% coconut fat (Ration III) were compared with a control ration (Ration I) in a 34 day experiment with growing boars of the German Landrace breed (12-30 kg body weight). The relationships between DP and ME were held constant for all 3 rations, and because of the higher ME contents of the two fat rations, this was achieved by reducing the feed intake, relative to that of the control ration. Parameters measured were growth, composition at slaughter, the apparent digestibility of the crude nutrients and energy, the N-balance and the concentrations of urea, insulin, glucose, triglyceride and cholesterol in the blood. In comparison to Ration I, the apparent digestibilities of crude protein in Rations II and III were 5 and 4% (p less than 0,05) higher, respectively. There was little difference in the apparent digestibility of crude fat between the Rations II and III. However, large differences in the values were determined depending upon method of extraction. There were little differences in the productive performance of the animals fed the fat diets. The control animals had, however, a 13% lower growth rate (p less than 0,05) when compared at similar ME-intakes. As the energy concentration and the growth rate were higher in groups II and III, the feed conversion efficiency and the ME required per kg growth were approximately 30 and 13% lower than that of the control animals. The efficiency of protein utilization of the animals in group III was 4% higher (p greater than 0.05) and the blood urea concentration 20% lower (p less than 0.05) than that in group II. The values for the control animals were intermediate. A similar result was obtained concerning the fat content of the animals. The fat content of the animals in group III was 15.9% and this was significantly lower (p less than 0.001) than that of 21.1% measured in group II. That of the control animals, 18.6%, was not significantly different from the above values. The differences in feeding over the relatively short period of 34 days lead to marked differences in the fatty acid pattern of the backfat. The contents of myristic acid and linoleic acid were significantly different between group II and III; for the former values of 0.8% and 16.9% were determined, respectively, with corresponding values of 48.7 and 11.3% for the latter.(ABSTRACT TRUNCATED AT 400 WORDS)
在一项为期34天的实验中，将含有12%向日葵油的日粮（日粮II）和含有12%椰子油的日粮（日粮III）与对照日粮（日粮I）进行比较，实验对象为德国长白猪品种的生长公猪（体重12 - 30千克）。所有三种日粮中可消化蛋白（DP）与代谢能（ME）的关系保持恒定，由于两种含脂肪日粮的ME含量较高，这是通过相对于对照日粮减少采食量来实现的。测量的参数包括生长情况、屠宰时的组成、粗养分和能量的表观消化率、氮平衡以及血液中尿素、胰岛素、葡萄糖、甘油三酯和胆固醇的浓度。与日粮I相比，日粮II和III中粗蛋白的表观消化率分别高5%和4%（p < 0.05）。日粮II和III之间粗脂肪的表观消化率差异不大。然而，根据提取方法的不同，测定值存在很大差异。饲喂含脂肪日粮的动物生产性能差异不大。然而，在相似的ME摄入量下进行比较时，对照动物的生长速度低13%（p < 0.05）。由于II组和III组的能量浓度和生长速度较高，其饲料转化率和每千克生长所需的ME比对照动物分别低约30%和13%。III组动物的蛋白质利用效率比II组高4%（p > 0.05），血液尿素浓度比II组低20%（p < 0.05）。对照动物的值处于中间水平。在动物脂肪含量方面也得到了类似的结果。III组动物的脂肪含量为15.9%，显著低于II组测得的21.1%（p < 0.001）。对照动物的脂肪含量为18.6%，与上述值无显著差异。在相对较短的34天饲喂期内的差异导致了背膘脂肪酸模式的显著差异。II组和III组之间肉豆蔻酸和亚油酸的含量有显著差异；前者分别测定为0.8%和16.9%，后者相应的值为48.7%和11.3%。（摘要截取自400字）
