Beyer M, Jentsch W, Hoffmann L, Schiemann R
Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere, Dummerstorf-Rostock, Germany.
Arch Tierernahr. 1993;44(4):317-38. doi: 10.1080/17450399309386078.
The influence of litter number (1, 2 and 4, age of sows) as well as gestation and lactation stage of sows on the chemical composition and on the quantities of protein and fat of their bodies was investigated. The slaughter of 46 pregnant, 18 non-pregnant and 17 lactating sows were carried out at the 1st, 56th, 84th, 98th, 105th and 113th day of gestation, 113th day of experiment (non-pregnant sows) and 26th day of lactation. The results were related to the sows' energy supply (120, 100 and 80%) with equal supply of protein, vitamins and minerals. Within the tested litter numbers the chemical composition of the bodies was nearly constant during the whole time of gestation and lactation. A good agreement existed for the chemical composition of the sows' bodies of litter number 1 and 2. In comparison to them the bodies of litter number 4 contained more protein and less fat per kg dry matter. The quantities of body protein and fat increased in the gestation and decreased in the lactation period, in each case the quantities of fat exceeded than the quantities of protein. The quantities of body protein increased with higher litter number. The quantities of body fat increased from litter number 1 to 2 and were nearly equal in the sows of litter numbers 1 and 4. Within one litter number the amounts of body protein and fat attained the same level in pregnant, non-pregnant and lactating sows.
研究了窝产仔数（1、2和4，母猪年龄）以及母猪的妊娠和泌乳阶段对其身体化学成分以及蛋白质和脂肪含量的影响。在妊娠第1天、第56天、第84天、第98天、第105天和第113天、实验第113天（未怀孕母猪）以及泌乳第26天，对46头怀孕母猪、18头未怀孕母猪和17头泌乳母猪进行了屠宰。结果与母猪的能量供应（120%、100%和80%）相关，蛋白质、维生素和矿物质供应相同。在测试的窝产仔数范围内，整个妊娠和泌乳期间身体的化学成分几乎保持不变。窝产仔数为1和2的母猪身体化学成分吻合度良好。与之相比，窝产仔数为4的母猪每千克干物质中蛋白质含量更高，脂肪含量更低。身体蛋白质和脂肪的含量在妊娠期增加，在泌乳期减少，每种情况下脂肪含量均超过蛋白质含量。身体蛋白质含量随着窝产仔数的增加而增加。身体脂肪含量从窝产仔数1增加到2，在窝产仔数为1和4的母猪中几乎相等。在同一窝产仔数内，怀孕、未怀孕和泌乳母猪的身体蛋白质和脂肪含量达到相同水平。
