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选择18日龄杜长大仔猪(未去势)16窝,按窝平均体重分为4组,每组4个重复,每个重复1窝。参试猪均于21日龄断奶。试验1、2、3、4组仔猪全价饲粮的大豆蛋白源分别为膨化全脂大豆、膨化豆粕、膨化去皮豆粕和大豆浓缩蛋白,各试验组饲粮营养水平一致,重点考察不同大豆蛋白饲料对仔猪断奶后第1周生长性能的影响。试验期为1周。结果表明,试验2组平均日增重为73.36g,与试验3、1、4组相比分别提高27.29%、17.38%和6.50%;料重比为2.05,分别降低45.48%、12.39%和18.33%;腹泻指数为1.33,分别降低60.06%、55.67%和64.53%。虽然统计分析均差异不显著,但可见膨化豆粕在提高仔猪断奶早期生长性能方面优于其它大豆蛋白饲料。 相似文献
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不同温度湿法挤压膨化全脂大豆在仔猪饲料中的应用效果 总被引：4，自引：0，他引：4
本试验采用 4个膨化温度处理全脂大豆饲喂断奶前后的仔猪 ,研究不同膨化温度生产的全脂大豆对仔猪生产性能以及腹泻的影响。结果表明 ,断奶前仔猪采食量低 ,其生产性能受母猪泌乳能力影响远远大于日粮因素影响 ;4种膨化全脂大豆日粮可提高断奶后仔猪的生产性能 ,其中以采食 135℃膨化大豆日粮仔猪的生产性能最好 ;与其它 3种膨化大豆日粮相比 ,15 0℃膨化大豆日粮可减轻仔猪过敏反应 ,降低仔猪腹泻 ,与豆粕 +油日粮相比 ,膨化大豆日粮可明显缓减断奶仔猪腹泻 相似文献
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不同加工处理的大豆蛋白日粮对仔猪断奶后腹泻影响的研究 总被引：5，自引：0，他引：5
将36头35日龄断奶仔猪随机分为4组,分别喂给4种不同加工处理的大豆蛋白日粮(炒大豆曰粮、嘭化全脂大豆日粮、豆粕日粮和膨化豆粕日粮),每个处理3个重复,检测对仔猪皮褶厚度、木糖吸收能力、腹泻和粪中大肠肝菌的影响。结果表明,大豆蛋白都有一定程度的致敏性。膨化豆粕处理组仔猪皮褶厚度低于膨化全脂大豆和豆粕处理组仔猪(P<0.01),对木糖的吸收能力前者高于后二者(P<0.01);(?)以膨化豆粕日粮的仔猪的粪中大肠杆菌数比采食含有膨化全脂大豆和豆粕日粮(?)仔猪低(P<0.05),腹泻情况也明显好于其余各处理组仔猪,但无显著差异。 相似文献
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试验旨在研究不同大豆源蛋白对断奶仔猪生长性能、腹泻率和养分消化率的影响。试验1选取(21±1)d杜×长×大断奶仔猪500头,采用完全随机设计分为5个组,每组5个重复,每个重复20头,各组分别饲喂两种大豆浓缩蛋白和三种豆粕源日粮;试验2选择(21±1)d杜×长×大断奶仔猪300头,采用完全随机设计分为3个组,每组5个重复,每个重复20头,各组分别饲喂三种豆粕源日粮,试验时间为21~57 d。结果显示:仔猪饲喂大豆浓缩蛋白日粮与豆粕型日粮对生长性能无显著影响(P0.05),但大豆浓缩蛋白日粮显著降低了仔猪的腹泻率(P0.05)。美国源豆粕较巴西和阿根廷源豆粕显著提高了平均日增重和饲料报酬(P0.05)。大豆浓缩蛋白日粮较豆粕型日粮显著提高了仔猪粗蛋白质的表观消化率(P0.05)。美国和巴西源豆粕较阿根廷源豆粕显著降低了仔猪腹泻率(P0.05)。结果表明:日粮中用等量的大豆浓缩蛋白替代豆粕对断奶仔猪的生长性能无显著影响,但可以提高粗蛋白质的表观消化率和降低仔猪腹泻率。在本试验条件下,美国豆粕较巴西和阿根廷豆粕提高了仔猪的生长性能,降低了仔猪腹泻率。 相似文献
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根据遗传、性别、体重等相一致的原则,将30头35日龄断奶的杜洛克仔猪随机分为3个组,每组设2个重复,研究膨化全脂大豆对仔猪生产性能和饲粮养分消化率的影响。对照组以玉米豆粕等配制饲粮,试验1组以膨化全脂大豆替代50%的豆粕,试验2组以膨化全脂大豆替代全部豆粕,其他饲粮组成保持不变,进行40 d的饲养试验。在试验第20 d开始,连续收集粪便3 d,测定饲粮养分消化率。结果表明,试验1组日增重比对照组提高了17.6%,差异显著(P<0.05),试验2组比对照组提高了7.4%(P>0.05);试验1组和试验2组饲料利用率分别比对照组提高11.7%和7.6%。试验2组干物质消化率显著高于对照组(P<0.05),蛋白质的消化率三个组基本接近,但含有膨化大豆的试验1组和试验2组的粗脂肪和粗灰分的消化率均比对照组有提高趋势。 相似文献
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根据遗传、性别、体质量等相一致的原则,将30头35日龄断奶的杜洛克仔猪随机分为3组,每组设2个重复,研究膨化全脂大豆对仔猪生产性能和饲粮养分消化率的影响。对照组以玉米豆粕等配制饲粮,试验1组以膨化全脂大豆替代50%的豆粕,试验2组以膨化全脂大豆替代全部豆粕,其他饲粮组成保持不变,进行40d的饲养试验。在试验第20天开始,连续收集粪便3d,测定饲粮养分消化率。结果表明,试验1组日增重比对照组提高了17.6%,差异显著(P<0.05),试验2组比对照组提高了7.4%(P>0.05);试验1组和试验2组饲料利用率分别比对照组提高11.7%和7.6%。试验2组干物质消化率显著高于对照组(P<0.05),蛋白质的消化率3组基本接近,但含有膨化大豆的试验1组和试验2组的粗脂肪和粗灰分的消化率均比对照组有提高趋势。 相似文献
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不同大豆加工产品对早期断奶仔猪生长及日粮养分消化率的影响 总被引：5，自引：0，他引：5
膨化全脂大豆 (ＥＦＳ)与豆粕 (ＳＢＭ)相比 ,油脂的含量相对较高 ,因此越来越多地作为氨基酸和能量饲料应用于畜禽日粮中。饲养试验结果发现 ,二者对断奶仔猪饲喂效果差别较大。如Ｋｉｍ等 (1 998ｂ)发现 ,用ＥＦＳ取代ＳＢＭ时 ,断奶仔猪平均日增重 (ＡＤＧ)和饲料转化率 (ＦＣＲ)不受影响 ;但Ｐｉａｏ等 (1 999)研究发现 ,ＳＢＭ对早期断奶仔猪的饲喂效果明显差于ＥＦＳ。本试验旨在比较ＳＢＭ与ＥＦＳ对早期断奶仔猪日粮养分消化率的影响 ,为大豆加工产品的有效利用提供试验依据。1 材料与方法1 1 试验动物 选择 2 1日龄断奶体重为 … 相似文献
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试验旨在研究普通豆粕、膨化豆粕和全脂膨化大豆粗蛋白质体外消化率的差异,以及以膨化豆粕和全脂膨化大豆替代玉米-豆粕型基础日粮中部分豆粕对仔猪生长性能、养分表观消化率、血清生化指标的影响。以胃蛋白酶-胰蛋白酶两步消化法测定体外消化率。动物试验选用108头初始体重为（10.10±0.57）kg的42日龄健康杜×长×大仔猪（公母各半）,按区组随机分为3组,每组6个重复,每个重复6头猪。对照组饲喂玉米-豆粕型基础日粮,膨化豆粕组以9.66%膨化豆粕替代对照组日粮中9.66%的豆粕,全脂膨化大豆组以12%全脂膨化大豆替代对照组日粮中9.66%豆粕和2.34%豆油。试验期为28 d。结果表明：膨化豆粕与全脂膨化大豆的体外粗蛋白质消化率均高于普通豆粕（P<0.05）,且膨化豆粕高于全脂膨化大豆（P<0.05）;与对照组相比,膨化豆粕组降低了仔猪耗料增重比（P<0.05）,其他生长性能指标无显著差异;与对照组相比,膨化豆粕组与全脂膨化大豆组均提高了干物质、总能、粗蛋白质、粗脂肪以及有机物的表观消化率（P<0.05）;膨化豆粕组血清中白蛋白含量高于对照组和全脂膨化大豆组（P<... 相似文献
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根据遗传、性别、体重等相一致的原则,将30头35日龄断奶的杜洛克仔猪随机分为3个组,每组设2个重复,研究膨化全脂大豆对仔猪生产性能和饲粮养分消化率的影响。对照组以玉米豆粕等配制饲粮,试验1组以膨化全脂大豆替代50%的豆粕,试验2组以膨化全脂大豆替代全部豆粕,其他饲粮组成保持不变,进行40d的饲养试验。在试验第20d开始,连续收集粪便3d,测定饲粮养分消化率。结果表明,试验1组日增重比对照组提高了17．6％,差异显著（P〈0．05）,试验2组比对照组提高了7．4％（P〉0．05）;试验1组和试验2组饲料利用率分别比对照组提高11．7％和7．6％。试验2组干物质消化率显著高于对照组（P〈0．05）,蛋白质的消化率三个组基本接近,但含有膨化大豆的试验1组和试验2组的粗脂肪和粗灰分的消化率均比对照组有提高趋势。 相似文献
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Effects of protein and carbohydrate sources on digestibility and digesta flow rate in weaned pigs fed a high-fat, dry diet 总被引：1，自引：0，他引：1
Two trials were conducted to evaluate the effects of protein source (48% CP soybean meal or casein) and carbohydrate source (25% dextrose or 25% lactose) on digestibility and digesta flow rate in early-weaned pigs. Diets contained 10% crude soybean oil and were formulated to contain 3.5 g lysine, 2.3 g Ca and 2.0 g P per 1,000 kcal DE of diet. In Trial 1, nutrient digestibility was greater for older than for younger pigs. Apparent digestibilities for energy, DM, CP and fat were lower (P less than .08) for younger and older pigs fed soybean meal rather than casein. Digestibility of soluble carbohydrates was less (P less than .02) for younger pigs fed soybean meal rather than casein as a protein source. Fat digestibility was lower (P less than .05) in younger pigs fed dextrose than in pigs fed lactose. A protein X carbohydrate source interaction (P less than .01) existed for fat digestibility by older pigs. In Trial 2, pigs were euthanatized, and digestibilities anterior to the ileum and the colon (pre-ileal and pre-cecal) were determined. At the ileum, fat digestibility was lower (P less than .05) for pigs fed soybean meal, whereas CP digestibility was lower (P less than .05) for pigs fed either soybean meal or dextrose. A protein X carbohydrate interaction was observed for ileal digestibilities of DM (P less than .06) and total carbohydrates (P less than .03) with lowest values obtained for the soybean meal plus dextrose diet. For casein diets, digestibility values were similar between the two carbohydrate sources.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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本试验研究不同粉碎粒度的豆粕对断奶仔猪生长性能和养分消化率的影响,选用26～28日龄断奶(7.9±0.7)kg杜×长×大健康仔猪80头,按体重、性别相同原则随机分为4个处理,每处理设5个重复,每个重复4头猪。各个处理组采用相同的日粮组成,对照组饲喂含常规粉碎豆粕(目标粒径为750μm)的日粮,处理1、2、3分别饲喂含目标粒径为150、30、6μm豆粕的日粮。结果表明:使用粉碎粒度低于30μm豆粕的日粮提高了断奶仔猪日增重(P<0.05),明显提高采食量(P>0.05),降低饲料增重比(P<0.05),显著降低断奶仔猪的腹泻频率;使用粉碎粒度低于30μm豆粕的日粮提高断奶仔猪日粮氮、磷表观消化率(P<0.05),改善能量消化率(P=0.063)和有机物表观消化率(P=0.082),显著提高必需氨基酸的表观消化率(P<0.05)。粉碎粒度低于30μm的超微粉碎豆粕可显著提高断奶仔猪日粮蛋白质的消化效率,提高断奶仔猪的生长性能,改善了豆粕作为蛋白质营养源的生物适应性。 相似文献
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Forty crossbred barrows (initial average BW of 20 kg) were fitted with T-cannulas in the distal ileum to determine the effects of extrusion of soybean meal on the apparent ileal and fecal digestibilities of lysine, N, and GE. A basal corn-soybean meal diet was formulated to contain .525% lysine. Nonextruded soybean meal (SM), extruded soybean meal (ESM), and L-lysine.HCl (LLH) replaced cornstarch in the basal diet to make diets containing .60, .675, and .75% total dietary lysine for each lysine source. Treatments were arranged as a 3 x 3 factorial with the basal diet as an additional treatment. Ileal and fecal digestibilities of lysine were not affected (P greater than .05) by source of lysine. However, linear increases (P less than .05) occurred in ileal lysine digestibilities with increasing concentrations of dietary lysine provided as LLH, but not when lysine was provided as SM or ESM. Apparent ileal and fecal retention of N as percentages of N absorbed or consumed were greater (P less than .05) for diets containing LLH than for diets containing SM, and diets containing ESM were intermediate. Linear increases (P less than .05) occurred in ileal and fecal N retained as percentages of N absorbed or consumed with increasing concentration of dietary lysine provided as LLH or ESM, but not when provided as SM. Fecal DE and ME (kilocalories per gram of diet) for diets containing LLH and ESM were similar and greater (P less than .05) than the values obtained for diets containing SM.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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Soybean meal from roundup ready or conventional soybeans in diets for growing-finishing swine 总被引：14，自引：0，他引：14
Cromwell GL Lindemann MD Randolph JH Parker GR Coffey RD Laurent KM Armstrong CL Mikel WB Stanisiewski EP Hartnell GF 《Journal of animal science》2002,80(3):708-715
Dehulled soybean meal prepared from genetically modified, herbicide (glyphosate)-tolerant Roundup Ready soybeans containing the CP4 EPSPS protein and near-isogenic conventional soybeans were assessed in an experiment with growing-finishing pigs. The soybeans were grown in the yr 2000 under similar agronomic conditions except that the Roundup Ready soybeans were sprayed with Roundup herbicide. Both were processed at the same plant. The composition of the two types of soybeans and the processed soybean meal were similar. Corn-soybean meal diets containing conventional or Roundup Ready soybean meal and fortified with minerals and vitamins were fed to 100 cross-bred pigs from 24 to 111 kg BW. Diets contained approximately 0.95% lysine initially and were reduced to 0.80 and 0.65% lysine when pigs reached 55 and 87 kg BW, respectively. There were 10 pens (five pens of barrows and five pens of gilts) per treatment with five pigs per pen. All pigs were scanned at 107 kg mean BW and all barrows were killed at the end of the test for carcass measurements and tissue collection. Rate and efficiency of weight gain, scanned backfat and longissimus area, and calculated carcass lean percentage were not different (P > 0.05) for pigs fed diets containing conventional or Roundup Ready soybean meal. Gilts gained slower, but they were more efficient and leaner (P < 0.05) than barrows. Responses to the type of soybean meal were similar for the two sexes with no evidence of a diet x sex interaction for any of the traits. In most instances, carcass traits of barrows were similar for the two types of soybean meal. Longissimus muscle samples from barrows fed conventional soybean meal tended (P = 0.06) to have less fat than those fed Roundup Ready soybean meal, but water, protein, and ash were similar. Sensory scores of cooked longissimus muscles were not influenced (P > 0.05) by diet. The results indicate that Roundup Ready soybean meal is essentially equivalent in composition and nutritional value to conventional soybean meal for growing-finishing pigs. 相似文献
15.
We investigated the effects of rice feeding on growth performance and protein (amino acids) metabolism of weanling piglets. In all, 16 weanling piglets with an average initial weight of 7.5 kg were divided into two groups. One group was fed a corn‐soybean meal‐based diet, and the other was fed a rice‐soybean meal diet, containing around 46% of corn or rice, respectively. A two‐week growth trial was conducted. The average daily gain (p = .025) and feed efficiency (p = .011) in rice‐fed piglets were significantly higher than those in corn‐fed piglets. Liver lysine‐ketoglutarate reductase activity tended to be lower (p = .073) in rice‐fed piglets than in corn‐fed piglets. Plasma urea nitrogen concentration in rice‐fed piglets was significantly lower than that in corn‐fed piglets. Plasma glucose and insulin concentrations were significantly higher in rice‐fed piglets than in corn‐fed piglets. Plasma‐free valine, isoleucine, and tryptophan concentrations were significantly higher in rice‐fed piglets than in corn‐fed piglets. In contrast, plasma histidine concentration was significantly lower in rice‐fed piglets than in corn‐fed piglets. Overall, these results show that rice feeding improves the growth performance and affects the protein (amino acids) metabolism in weanling piglets. 相似文献
16.
本试验旨在研究发酵蚕蛹豆粕粉替换鱼粉对断奶仔猪生长性能、血清生化指标及器官指数的影响,及确定其适宜的替换水平。选用120头(28±1)日龄断奶、初始体重为(7.64±0.67)kg的健康"杜×长×大"三元杂交仔猪,分为4组,每组3个重复,每个重复10头猪。对照组饲喂基础饲粮,3个试验组分别用发酵蚕蛹豆粕粉替换基础饲粮中25%、50%、100%的鱼粉。预试期3 d,正试期21 d。结果表明:1)各组试验全期平均日增重、平均日采食量(ADFI)、料重比均差异不显著(P0.05),但对照组第1周ADFI显著高于25%替换组(P0.05),50%、100%替换组第2周ADFI显著高于25%替换组(P0.05)。2)25%替换组血清总胆固醇含量显著高于对照组(P0.05),25%替换组血清高密度脂蛋白胆固醇含量显著高于对照组和50%替换组(P0.05),25%替换组血清载脂蛋白B含量显著高于50%替换组(P0.05),对照组血清总蛋白含量显著高于50%替换组和100%替换组(P0.05)。3)各组腹泻率、器官指数、血清免疫球蛋白含量均差异不显著(P0.05)。综合各项指标,发酵蚕蛹豆粕粉可替代饲粮中25%的鱼粉,而不影响断奶仔猪的生长性能。 相似文献
17.
Interrelationship between hypersensitivity to soybean proteins and growth performance in early-weaned pigs. 总被引：14，自引：0，他引：14
D F Li J L Nelssen P G Reddy F Blecha R Klemm R D Goodband 《Journal of animal science》1991,69(10):4062-4069
The objective of this growth trial was to determine the interrelationship between immunological criteria, gut morphology, and performance of starter pigs fed soybean proteins processed by different methods. One hundred twenty-five pigs were orally infused with 6 g/d of either dried skim milk, soybean meal (48% CP), soy protein concentrate, extruded soy protein concentrate, or experimental soy protein concentrate from 7 to 11 d of age and then fed a diet containing the same protein sources from weaning (d 21) to 35 d of age. All pigs were fed a corn-soybean meal diet containing 10% dried whey, 1.25% lysine, and 3% soybean oil for the remaining 21 d of the experiment. Xylose absorption and anti-soy immunoglobulin G (IgG) titers were measured on d 6 postweaning, and skin-fold thickness after intradermal injection of protein extracts was measured on d 7 postweaning. A total of 25 pigs (five pigs/treatment) was euthanatized on d 7 postweaning. Villus height and crypt depth from duodenum samples were measured. These measurements were obtained to elucidate a relationship between the hypersensitivity responses to soybean products and growth performance of baby pigs. Pigs fed diets containing soybean meal had a lower (P less than .05) rate of gain (d 0 to 14) and villus height, higher (P less than .01) serum anti-soy IgG titers, and increased skin-fold thickness (d 6 and 7 postweaning) after intradermal injection compared with those fed dried skim milk. Pigs fed other soy proteins also had lower ADG from d 0 to 14 postweaning; however, pigs fed moist extruded soy protein concentrate tended (P less than .09) to have higher ADG and improved feed utilization when compared with pigs fed soybean meal (d 0 to 14).(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
18.
Dietary rice improves growth performance,mucosal enzyme activities and plasma urea nitrogen in weaning piglets 
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下载免费PDF全文 In this study, we evaluated the nutritional functions of rice for weaning piglets. Sixteen weaning piglets with an average initial weight of 7.2 kg were divided into two groups. One group was fed a corn‐soybean meal based diet, and the other was fed a rice‐soybean meal based diet, containing 50% corn and rice, respectively. A 2 weeks growth trial was conducted and growth performance, intestinal mucosal enzyme activities and plasma urea nitrogen were measured. The average daily gain in rice‐fed piglets was significantly higher than that in corn‐fed piglets and the average daily feed intake tended to be higher in rice‐fed piglets than in corn‐fed piglets. Maltase and aminopeptidase activities (mol/g tissue) in the jejunum in rice‐fed piglets were significantly higher than those in corn‐fed piglets, although these enzyme activities were not different in the duodenum. Sucrase and dipeptidyl peptidase IV activities in the two groups were not different in either the duodenum or jejunum. Although the feed (nitrogen) intake was higher in rice‐fed piglets, the plasma urea nitrogen in rice‐fed piglets was significantly lower (P = 0.006) than that in corn‐fed piglets. These results indicate that rice is a good alternative feedstuff for the diet of weaning piglets. 相似文献
19.
试验采用2×2因子设计,共分4个处理,即粉料和颗粒料2种类型,每种类型2种状态(液态和固态)。试验选用96头(21±1)d断奶的三元(D×L×Y)杂交仔猪,试验期21 d。其中液态料按12∶.5的料水比进行浸泡。试验期间考察仔猪的耗料量、增重、腹泻情况、粪便pH值及木糖吸收情况等,并测定饲料的pH值和淀粉糊化度。结果表明:①与粉料组相比,颗粒料组仔猪平均日增重提高了9.7%(P<0.05),平均日采食量提高了13.5%(P<0.10)。②颗粒料的淀粉糊化度比粉料高15%-16%。③液态组仔猪全期平均日采食量和日增重均高于固态组(P<0.05),分别提高了10.3%和12.9%。④液态料组仔猪血清木糖含量比固态料组高52%(P<0.05),且腹泻程度显著(P<0.05)降低。 相似文献