Yen J T, Cromwell G L, Allee G L, Calvert C C, Crenshaw T D, Miller E R
NCR-42 Committee on Swine Nutrition, U. S. Department of Agriculture, Agricultural Research Service, Clay Center, NE 68933.
J Anim Sci. 1991 Feb;69(2):656-63. doi: 10.2527/1991.692656x.
A cooperative study using 215 sows during two parities (349 litters) was conducted at six stations to determine the effect of raw soybeans in gestation and lactation diets on sow and litter performance. Sows were bred and allotted to fortified corn diets containing either soybean meal (control) or raw soybeans. A corn-soybean meal-soybean oil diet, isocaloric to the raw soybean diet, was included as a third treatment at three stations. All diets contained 14% CP. These diets were fed during both gestation and lactation through two parities. The daily gestation feed intake ranged from 1.8 to 2.3 kg/sow, depending on station. During lactation, the sows were allowed ad libitum access to their respective diets. Gestational weight gain was not influenced by diet, but sows fed raw soybeans consumed less (P less than .01) feed during lactation and had greater (P less than .01) lactational weight loss and their pigs were lighter in weight (P less than .05) both at 21 d and at weaning (varied between 3 and 5 wk of age). Sows fed the diet with supplemental oil had reproductive and lactational performance similar to those fed the control diet. Milk obtained at d 10 to 14 of lactation from sows fed raw soybeans had lower (P less than .05) protein content than milk from sows fed the other two diets, but fat content of the milk tended to be increased by raw soybeans or by added soybean oil. Return to estrus was not affected by diet.(ABSTRACT TRUNCATED AT 250 WORDS)
在六个试验站进行了一项合作研究,使用215头经产母猪(共349窝),以确定在妊娠和泌乳日粮中使用生大豆对母猪及其仔猪生产性能的影响。母猪配种后被分配到含有豆粕(对照)或生大豆的强化玉米日粮组。在三个试验站,将一种与生大豆日粮等热量的玉米-豆粕-大豆油日粮作为第三种处理方式。所有日粮的粗蛋白含量均为14%。这些日粮在妊娠和泌乳期的两个胎次中使用。根据试验站的不同,妊娠期间母猪的日采食量为1.8至2.3千克/头。泌乳期间,母猪可自由采食各自的日粮。妊娠增重不受日粮的影响,但采食生大豆的母猪在泌乳期采食量较少(P<0.01),泌乳期失重更大(P<0.01),其仔猪在21日龄和断奶时(断奶日龄在3至5周之间)体重更轻(P<0.05)。采食添加油日粮的母猪繁殖性能和泌乳性能与采食对照日粮的母猪相似。泌乳第10至14天,采食生大豆的母猪所产乳汁的蛋白质含量低于采食其他两种日粮的母猪(P<0.05),但生大豆或添加大豆油使乳汁中的脂肪含量趋于增加。日粮对母猪返情没有影响。(摘要截选至250词)