Jacyno E, Czarnecki R, Owsianny J, Lachowicz K, Gajowiecki L
Lehrstuhl für Schweinezucht, Landwirtschaftliche Universität Szczecin, Polen.
Arch Tierernahr. 1996;49(2):169-79. doi: 10.1080/17450399609381875.
The studies were carried out on F1 progeny of multiparous Polish Large White sows and boars of Belgian Landrace, Hampshire x Pietrain hybrid, and Pietrain breed. The control group consisted of purebred Polish Large White pigs. The experimental part of the studies was performed on 120 fatteners divided up to 4 race groups, with 30 heads in each (namely 15 barrows and 15 gilts). Moreover, each group was divided into two following subgroups: the SoS one, which was given feed mixture with extracted soybean meal and the RpS one, which was given feed mixture with extracted rapeseed meal. The fattening started with 23 kg of body weight and was realized up to 100 kg. Twenty fatteners from each group (including 5 barrows and 5 gilts from a subgroup) were subjected to the control slaughter. The fatteners average daily body weight gains, and energy and digestible crude protein conversion per 1 kg of gain were as follows: after Belgain Landrace boars 788 g, 32.3 MJ and 358 g; after Hampshire x Pietrain boars 766 g, 33.6 MJ and 373 g; after Pietrain boars 720 g, 34.4 MJ and 382 g; after control group boars 705 g, 36.3 MJ and 403 g, respectively. It was found that hybrids after boars of evaluated breeds have positively (P < or = 0,01) better carcass meatness, and in a better way use digestible protein and metabolizable energy for production of 1 kg of meat. On that reason the best are hybrids after Belgian Landrace boars, carcasses of which yielded 52.4% of meat and converted 27% less of digestible crude protein and metabolizable energy for 1 kg meat production, than the White Large Polish fatteners. For no examined feature interaction between genotype and protein source in feeding diet was found. The growth rate and utilization of fodder were better for pigs fed on mixture with extracted soybean meal than for the ones fed on mixture with extracted rapeseed meal (P < or = 0.05). The fodders with high protein content did not differentiate meatness traits, whereas digestible crude protein and metabolizable energy conversion for 1 kg meat production in pigs, being given extracted soybean meal in diet, was lower (P < or = 0.05) than in pigs given extracted rapeseed meal.
这些研究是在多胎波兰大白母猪与比利时长白公猪、汉普夏×皮特兰杂交公猪以及皮特兰公猪的F1后代上进行的。对照组由纯种波兰大白猪组成。研究的实验部分在120头育肥猪上进行，分为4个品种组，每组30头（即15头阉公猪和15头小母猪）。此外，每组又分为以下两个亚组：SoS亚组，饲喂含提取大豆粕的饲料混合物；RpS亚组，饲喂含提取菜籽粕的饲料混合物。育肥从体重23千克开始，一直到100千克。每组20头育肥猪（包括每个亚组的5头阉公猪和5头小母猪）接受对照屠宰。育肥猪的平均日增重以及每增重1千克的能量和可消化粗蛋白转化率如下：比利时长白公猪后代分别为788克、32.3兆焦和358克；汉普夏×皮特兰公猪后代为766克、33.6兆焦和373克；皮特兰公猪后代为720克、34.4兆焦和382克；对照组公猪后代为705克、36.3兆焦和403克。结果发现，所评估品种公猪的后代杂种猪胴体肉质更好（P≤0.01），并且在生产1千克肉时能更好地利用可消化蛋白质和代谢能。因此，比利时长白公猪的后代杂种猪最好，其胴体产肉率为52.4%，生产1千克肉时可消化粗蛋白和代谢能的转化率比波兰大白育肥猪低27%。在饲料日粮中未发现基因型与蛋白质来源之间存在所检测的特征相互作用。饲喂含提取大豆粕混合物的猪的生长速度和饲料利用率比饲喂含提取菜籽粕混合物的猪更好（P≤0.05）。高蛋白含量的饲料并未使肉质性状产生差异，而日粮中饲喂提取大豆粕的猪生产1千克肉时可消化粗蛋白和代谢能的转化率比饲喂提取菜籽粕的猪更低（P≤0.05）。
