共查询到19条相似文献，搜索用时 609 毫秒
1.
《黑龙江畜牧兽医》2017,(14)
为研究不同添加水平复合微生态制剂对断奶仔猪养分表观消化率和血液生化指标的影响,试验选择21日龄断奶仔猪120头,随机分成4组(对照组、Ⅰ组、Ⅱ组、Ⅲ组),对照组饲喂基础日粮,Ⅰ组、Ⅱ组、Ⅲ组分别在基础日粮中添加0.5,1.0,2.0 g/kg的复合微生态制剂。结果表明:与对照组相比,Ⅰ组、Ⅱ组、Ⅲ组粗蛋白、总钙、总磷消化率显著提高(P0.05),总蛋白、白蛋白含量显著提高(P0.05),尿素氮、碱性磷酸酶含量显著降低(P0.05);与Ⅰ组、Ⅱ组相比,Ⅲ组粗蛋白、总蛋白、总磷消化率显著提高(P0.05)。说明复合微生态制剂可显著提高仔猪的养分表观消化率,改善血液生化指标,且2.0 g/kg添加剂量的作用效果更为显著。 相似文献
2.
试验探讨复合微生态制剂对育肥期藏香猪生长和血清免疫球蛋白的影响。选择90头60日龄藏香猪育肥猪,随机分为3组,每组30头。3组的基础日粮相同,Ⅰ组的日粮中添加0.1%的复合微生态制剂,Ⅱ组的日粮中添加含0.03%敌它霉素和0.01%吉他霉素的抗生素,Ⅲ组以基础日粮为主,试验期120 d。结果表明:试验30 d和60 d的体重,Ⅰ组显著高于Ⅱ组和Ⅲ组(P0.05),90、120 d体重及试验期日增重,3组之间无显著差异(P0.05);试验期料重比Ⅰ组Ⅱ组Ⅲ组;试验期发病率和死亡率Ⅰ组Ⅱ组Ⅲ组;添加复合微生态制剂组的血清免疫球蛋白IgM和Ig A含量显著高于抗生素组和对照组(P0.05);IgG和CH含量各组之间差异不显著(P0.05)。因此,在本试验条件下,育肥期日粮中添加0.1%复合微生态制剂替代抗生素,可促进育肥藏香猪生长发育(2～4月龄),提高饲料报酬,降低发病率和死亡率。 相似文献
3.
《中国饲料》2019,(21)
为研究复合微生态制剂对仔猪生长性能和养分表观消化率的影响,试验选取120头(60头雌性和60头雄性)28日龄断奶的三元杂交仔猪,称重后随机分为4组。对照组饲喂基础日粮,试验Ⅰ、Ⅱ、Ⅲ组在基础日粮中分别添加0.05%、0.1%、0.2%的复合微生态制剂,试验期30 d。试验结果显示:相比于对照组,试验Ⅱ、Ⅲ组仔猪平均末重分别增加9.3%、6.5%(P 0.05),平均日增重分别增加20.6%、14.7%(P 0.05),Ⅱ组料肉比降低11.3%(P 0.05)。试验Ⅱ组粗蛋白质的表观消化率较对照组提高9.6%(P 0.05),Ⅰ、Ⅱ、Ⅲ组粗纤维表观消化率较对照组分别提高19.0%、64.9%、35.3%(P 0.05),试验Ⅱ、Ⅲ组粗脂肪表观消化率较对照组分别提高10.5%、8.1%(P 0.05),Ⅱ组总钙表观消化率提高5.1%(P 0.05),其他指标差异不显著(P 0.05)。综述,饲料中添加复合微生态制剂有助于仔猪的生长并能显著提高仔猪对营养物质的表观消化率,其中添加量为0.1%时效果较好。 相似文献
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试验旨在研究日粮中添加番茄渣对育肥猪生长性能、抗氧化性能和经济效益的影响。采用单因子试验设计,选择体重为（95.20±3.95） kg的杜洛克猪×长白猪×大白猪育肥母猪80头,随机分为4组,每组4个重复,每个重复5头猪：对照组喂基础日粮,Ⅰ、Ⅱ、Ⅲ组在基础日粮中分别添加100、200、300 g/（头·d）番茄渣。试验期为37 d。结果显示：与对照组比,Ⅰ组平均日增重和平均日采食量分别增加8.93%、18.81%（P<0.01）,Ⅰ组料重比较对照组降低11.03%,其他组间差异不显著（P>0.05）;Ⅱ组干物质和粗灰分表观消化率分别增加5.66%（P<0.05）、14.81%（P<0.01）,Ⅱ、Ⅲ组粗纤维表观消化率极显著降低9.25%、11.88%（P<0.01）,各组间粗蛋白质、粗脂肪表观消化率无显著差异（P>0.05）;Ⅱ、Ⅲ组总超氧化物歧化酶（SOD）活性分别极显著增加了40.99%、36.54%（P<0.01）,Ⅰ、Ⅱ、Ⅲ组丙二醛（MDA）含量均显著降低（P<0.05）,各组血清总抗氧化能力（T-AOC）、谷胱甘肽（GSH）活性无显著差异（P>0.05）;Ⅰ组增重收入586.26元/头,较对照组、Ⅱ组、Ⅲ组分别高48.06、52.20、52.92元;Ⅰ组利润最高,为466.90元。综上所述,添加番茄渣能够提高育肥猪生长性能、养分表观消化率、抗氧化性能及经济效益,但需控制用量。 相似文献
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为研究复合微生态制剂对三穗鸭生长性能的影响,试验选取1日龄、健康三穗鸭共180只,随机分为3个组：即对照组（饲喂基础日粮）、试验Ⅰ组（基础日粮+0.1%复合微生态制剂）、试验Ⅱ组（基础日粮+0.15%复合微生态制剂）,每组3个重复,每个重复20只鸭子,试验周期120 d。结果显示：试验Ⅰ组和试Ⅱ组体重分别在第5周和第7周显著高于对照组（P ＜ 0.05）,在第5周试验Ⅰ组和试验Ⅱ组体重比对照组分别高111.83、88.58 g（P ＜ 0.05）,在第7周试验Ⅰ组和试验Ⅱ组比对照组分别高231.37、236.59 g（P ＜ 0.05）,但试验Ⅰ组和试验Ⅱ组体重相比差异不显著。从体重增幅来看,对照组整个试验期每周增重差异不显著,而试验Ⅰ组第5周与第4周相比,增幅达185.47 g（P ＜ 0.05）,试验Ⅱ组第5周与第4周相比,增幅达189.62 g（P ＜ 0.05）。试验Ⅰ组第7周与第6周相比,增幅达276.8 g（P ＜ 0.05）,试验Ⅱ组第7周与第6周相比,增幅为83.34 g（P ＜ 0.05）。研究表明,添加0.1%和0.15%的复合微生态制剂可以不同程度提高三穗鸭的生长速度。[关键词] 复合微生态制剂|三穗鸭|生长性能 相似文献
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文章旨在研究日粮添加不同水平油茶籽粕对育肥猪生长性能、消化代谢及免疫能力的影响。试验将240头130日龄的育肥猪随机分为4组，每组6个重复，每个重复10头猪。对照组饲喂基础日粮，试验Ⅰ、Ⅱ和Ⅲ组猪分别饲喂用油茶籽粕等量替代5%、10%和15%豆粕的试验日粮。预饲期7d，正式期42d。结果表明，与对照组相比，日粮中添加油茶籽粕能显著降低试验猪的平均日采食量、平均日增重（P <0.05），试验Ⅰ组育肥猪的料重比显著降低（P <0.05）。油茶籽粕显著降低了育肥猪粗蛋白质、粗脂肪的表观消化率（P <0.05）。日粮中添加油茶籽粕对育肥猪的食入氮无显著影响（P> 0.05），而尿氮显著升高，沉积氮显著降低（P <0.05）。与对照组相比，油茶籽粕显著增加了育肥猪血清中ⅠgM、ⅠgG的含量（P <0.05），试验Ⅰ组育肥猪血清中ⅠgA含量显著高于对照组（P <0.05），而油茶籽粕对育肥猪血清中ⅠL-8、ⅠL-10、TNF-α的含量无显著影响（P> 0.05）。综合测定指标，日粮中添加5%的油茶籽粕替代豆粕饲喂育肥猪的效果更佳。 相似文献
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本试验旨在探讨在玉米-豆粕型日粮中添加不同外源酶对断奶羔羊血液生化指标和营养物质消化率的影响。试验选择25只2月龄断奶羔羊(12 kg)随机分为5个处理组(Ⅰ组:对照组,基础日粮;Ⅱ组:基础日粮+纤维素酶+淀粉酶+蛋白酶;Ⅲ组:基础日粮+淀粉酶;Ⅳ组:基础日粮+蛋白酶;Ⅴ组:基础日粮+纤维素酶),每个处理组5只羊,研究添加不同种类的外源消化酶对断奶羔羊血液生化指标以及营养物质消化率的影响。试验结果表明:试验Ⅱ组谷草转氨酶、总蛋白、白蛋白、尿素氮、肌酸激酶、乳酸脱氢酶的平均值比对照组提高36.8%、2.8%、12.4%、71.1%、16.8%、8.5%。与对照组相比,白蛋白的含量有增高的趋势,外源消化酶对谷丙转氨酶、球蛋白、葡萄糖的含量影响较小。试验Ⅱ组、Ⅲ组、Ⅴ组羔羊采食量极显著低于对照组(P0.01);试验Ⅳ组羔羊采食量显著低于对照组(P0.05);试验Ⅱ组、Ⅲ组NDF消化率显著低于对照组(P0.05);试验Ⅲ组ADF消化率极显著低于对照组(P0.01)。由此可见,在本试验条件下,添加外源酶制剂影响了羔羊的采食量;淀粉酶显著或极显著降低NDF、ADF消化率;纤维素酶+淀粉酶+蛋白酶混合会极显著地降低NDF消化率。断奶羔羊日粮中添加外源消化酶对其血液生化指标和营养物质消化率并无显著效果。添加复合酶制剂对血液生化指标造成一定的影响。 相似文献
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《中国饲料》2015,(15)
为研究饲料中添加微生态制剂对生长猪生产性能、饲料养分消化率以及粪中微生物的影响,本试验选择体重20 kg左右的"长×大"二元杂交生长猪90头,采用单因素随机区组设计,分为3组,每组3个重复,每个重复10头猪。对照组饲喂基础日粮,试验Ⅰ组饲喂基础日粮+0.10%微生态制剂,试验Ⅱ组饲喂基础日粮+0.15%微生态制剂。结果表明:(1)与对照组相比,添加微生态制剂能够显著提高日增重,试验Ⅰ组和试验Ⅱ组分别提高了6.38%和8.51%(P0.05);料重比分别降低了6.28%和6.73%(P0.05);腹泻率分别降低了8.26%和9.68%(P0.05),但对采食量影响不显著(P0.05)。(2)与对照组相比,添加微生态制剂对粗蛋白质、粗脂肪的表观消化率有提高的趋势,但差异不显著(P0.05),试验Ⅰ组和试验Ⅱ组粗蛋白质分别提高2.95%和2.21%,粗脂肪分别提高2.86%和5.50%。干物质、能量、钙、磷的表观消化率无显著影响(P0.05)。(3)与对照组相比,添加微生态制剂能够提高粪中乳酸菌和双歧杆菌数量,降低大肠杆菌数量,但差异不显著(P0.05)。试验Ⅰ组和试验Ⅱ组大肠杆菌分别降低了1.21%和1.89%,乳酸菌分别提高1.04%和1.27%,双歧杆菌分别提高0.47%和0.70%。综合考虑,0.15%微生态制剂添加组在提高生长猪生产性能,降低腹泻率,提高粪中双歧杆菌数量,降低大肠杆菌数量方面效果优于0.10%微生态制剂添加组。 相似文献
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试验旨在研究乳酸菌微生态制剂对冬毛期北极狐生长性能、营养物质消化率及血清生化指标的影响。选取135日龄、体重相近的健康雌性北极狐40只,随机分为4组,每组10个重复,每个重复1只。Ⅰ组饲喂基础日粮;Ⅱ组饲喂基础日粮+0.02%硫酸黏杆菌素;Ⅲ组饲喂基础日粮+1 mL乳酸菌微生态制剂（乳酸菌活菌数为3×109 CFU/mL）;Ⅳ组饲喂基础日粮+10 mL乳酸菌微生态制剂。结果显示：与对照组相比,添加乳酸菌微生态制剂可显著提高冬毛期北极狐平均日增重（P<0.05）,并显著降低料重比（P<0.05）;可显著提高冬毛期北极狐粗脂肪和总能表观消化率（P<0.05）;添加高水平乳酸菌微生态制剂可显著降低冬毛期北极狐血清总胆固醇水平（P<0.05）。此外,抗生素组北极狐血清谷丙转氨酶水平极显著高于其他各组（P<0.01）,谷草转氨酶水平显著高于对照组（P<0.05）。综上所述,在本试验条件下,当北极狐日采食活乳酸菌数达到3×109 CFU/mL时即可促进其生长,粗脂肪和总能表观消化率显著提高;当北极狐日采食活乳酸菌数达到3×1010 CFU/mL时,血清总胆固醇水平显著降低;长期添加硫酸黏杆菌素可能造成北极狐肝脏损伤。 相似文献
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文章旨在评估不同纤维原料对育肥猪生长性能、养分消化及氮代谢的影响。试验选择平均体重为（32.40±0.27）kg的10周龄育肥猪450头,随机分为3组,每组5个重复,每个重复30头。对照组与处理组分别饲喂20%麸皮、20%木薯叶粉和20%豆腐渣的日粮,日粮中非淀粉多糖水平分别为8%、10%和10%,试验持续8周。结果：处理2组18 w育肥猪体重及15～18 w饲料报酬显著高于处理1组（P＜0.05）。同时,对照组和处理2组15～18 w和10～18 w育肥猪平均日增重及10～18 w饲料报酬均显著高于处理1组（P＜0.05）。与处理1组相比,处理2组育肥猪干物质表观消化率显著高于处理1组（P＜0.05）,处理2组和对照组有机物和粗蛋白质表观消化率显著高于处理1组（P＜0.05）。对照组粗脂肪表观消化率显著高于处理1组（P＜0.05）。处理1组育肥猪粪氮排泄量显著高于对照组（P＜0.05）,但其氮沉积量显著低于对照组和处理2组（P＜0.05）。处理2组育肥猪粪中丁酸和戊酸浓度均显著高于对照组和处理1组（P＜0.05）。结果：日粮用20%豆腐渣替代麸皮对育肥猪生长性能和大部分养分表观消化率无负面影响,但其提高了粪中丁酸和戊酸含量。
[关键词]纤维|育肥猪|生长性能|养分消化|氮代谢 相似文献
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【目的】 研究以发酵麸皮多糖、肉桂醛、丁香酚和辣椒油树脂为主的复合营养素对杜寒育肥羊生长性能、养分表观消化率及血清指标的影响,以期为复合营养素在肉羊生产中的应用提供一定的理论依据。【方法】 试验采用单因素完全随机试验设计,选择体重为(29.69±3.11)kg的36只2~3月龄杜寒杂交母羊,随机分为3组,每组6个重复,每个重复2只羊。对照组(CON)饲喂基础饲粮,试验Ⅰ和Ⅱ组分别饲喂添加2.5和5.0 g/kg复合营养素的试验饲粮。预试期14 d,正试期60 d。试验开始和结束当天晨饲前称重测定其生长性能指标,并采集血液样品测定血清生理生化、免疫与抗氧化能力等指标;在正试期第24~30和54~60天持续采集7 d粪样和饲料样,早晚各采集1次,用于测定营养物质表观消化率。【结果】 ①与对照组相比,试验Ⅰ组育肥羊的终末重和平均日增重均显著增加(P<0.05),料重比降低,但差异不显著(P>0.05),试验Ⅰ和Ⅱ组育肥羊干物质采食量均显著升高(P<0.05)。②与对照组相比,在第24~30天时,试验Ⅰ组育肥羊对干物质和有机物的表观消化率显著提高(P<0.05)。③饲粮中添加复合营养素对育肥羊血清生化各指标均无显著影响(P>0.05);与对照组相比,试验结束时,试验Ⅰ和Ⅱ组育肥羊血清中超氧化物歧化酶(superoxide dismutase,SOD)和免疫球蛋白M(immunoglobulin M,IgM)含量均显著升高(P<0.05),试验Ⅱ组育肥羊血清中谷胱甘肽(glutathione,GSH)和免疫球蛋白G(immunoglobulin G,IgG)含量均显著降低(P<0.05),试验Ⅰ组育肥羊血清中丙二醛(malondialdehyde,MDA)含量显著降低(P<0.05)。【结论】 饲粮中添加2.5 g/kg复合营养素能够增加育肥羊干物质采食量和表观消化率,并改善其免疫功能,提高机体抗氧化水平。 相似文献
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复合微生态制剂对断奶仔猪生长性能、腹泻率、免疫性能和肠道菌群的影响 总被引：3，自引：0，他引：3
本试验旨在研究复合微生态制剂对断奶仔猪生长性能、腹泻率、免疫性能和肠道菌群的影响。选取(30±2)日龄平均体重为(8.15±0.05)kg的莱芜黑猪断奶仔猪96头,随机分为4组,每组6个重复(公母各占1/2),每个重复4头猪。Ⅰ组为对照组,饲喂不添加任何益生菌和抗生素的基础饲粮;Ⅱ组为复合微生态制剂组,在基础饲粮中添加1.0‰肽菌素;Ⅲ组为抗生素组,在基础饲粮中添加500 mg/kg硫酸黏杆菌素;Ⅳ组为肽菌素和抗生素混用组,在基础饲粮中添加1.0‰肽菌素的同时添加200 mg/kg的喹乙醇和110 mg/kg的吉他霉素。预试期3 d,正试期28 d。结果表明,1)Ⅱ组平均日增重较Ⅰ、Ⅲ和Ⅳ组分别显著提高了13.16%、15.77%和10.66%(P0.05),F/G分别显著降低了8.54%、12.10%和6.50%(P0.05)。与Ⅰ组相比,Ⅱ、Ⅲ和Ⅳ组均显著降低了仔猪腹泻率(P0.05)。2)与Ⅰ和Ⅲ组相比,Ⅱ组肝脏指数和脾脏指数分别提高了12.13%、24.76%和14.60%、12.45%,血清免疫球蛋白G和免疫球蛋白A含量分别提高了49.73%、37.50%和61.05%、46.67%,且差异均显著(P0.05)。3)与Ⅰ和Ⅲ组相比,Ⅱ组显著降低了胃和十二指肠内容物的p H(P0.05),且显著提高了盲肠和结肠中乳酸杆菌数量(P0.05)。由此可知,本试验条件下,饲粮添加1.0‰复合微生态制剂肽菌素可改善断奶仔猪生长性能,降低腹泻率,促进免疫器官的发育,提高血清中免疫球蛋白含量,增强仔猪免疫力,降低胃和十二指肠内容物p H,改善肠道菌群平衡。 相似文献
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This experiment was to study the effects of corn germ meal in different levels on use value of finishing pigs.120 health PIC piglets aged 45 days with similar body weight （17±2.1）kg were randomly divided into 4 groups of 5 replicates for each group and 6 pigs for each replicates （male and female were the same in each replicate）.Control group was fed basic diet,group one to three were fed diets containing different amounts of corn germ meal （5%，10% and 15%） with the same concentration of the main nutrient items.The results showed that compared with the control group，feed conversion rate in group one was no significant difference （P＞0.05），feed conversion rate in group two had a significantly decreased （P＜0.05），feed conversion rate in group three was significantly increased （P＜0.05)，average daily feed intake in control group was significantly lower than that in other groups （P＜0.05），and there were no significant differences in daily feed intake among experimental groups （P＞0.05）.With the corn germ meal level increasing，the daily feed intake was increased slightly.Group one and group two had a tendency to reduce the serum urea nitrogen content，but group two had a significant difference （P＜0.05），the content of serum urea nitrogen in group three was increased significantly （P＜0.05），there were no significant differences in serum albumin，total protein and glucose levels among all groups （P＞0.05）. Compared with the control group，the apparent digestibility of crude protein and crude fiber in group one had no significant differences （P＞0.05）.The apparent digestibility of crude protein and crude fiber in group two increased significantly （P＜0.05）,and the apparent digestibility of crude protein and crude fiber in group three decreased significantly （P＜0.05）.There were no significant differences in the apparent digestibility of crude fat and crude ash compared with the control group （P＞0.05）.Theses results indicate that the best supplementation level of corn germ meal was 10%，the anti-nutritional factors of corn germ meal may be the cellulose. 相似文献
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This experiment was conducted to study the effects of different levels of compound Chinese medicine on growth performance,nutrients apparent digestibility,immune function and slaughter performance of weaning Rex rabbits.70 healthy Rex rabbits at age of 60 days were divided into 7 groups with 5 replicates per group and 2 rabbits per replicate.Group Ⅰ was fed with basic diet as control group,group Ⅱ was fed the basal diet supplemented with antibiotic (contains 50 mg/kg milligrams bacitracin zinc,10 mg/kg colistin sulfate).The other five groups (Ⅲ,Ⅳ,Ⅴ,Ⅵ and Ⅶ) were fed the basal diet supplemented with 1%,2%,3%,4%,5% compound Chinese medicine,respectively.The pre-test period lasted for 7 days and the trial period lasted for 45 days.The results showed as follows:①The ADG in group Ⅳ was significantly higher than that in groups Ⅰ,Ⅱ and Ⅲ (P< 0.05),the F/G in group Ⅳ was significantly lower than that in other groups (P< 0.05).②The apparent digestibility of DM in group Ⅳ was significantly higher than that in groups Ⅰand Ⅱ (P< 0.05),the apparent digestibility of DM in group Ⅶ was significantly higher than that in group Ⅰ (P< 0.05).The apparent digestibility of CF in group Ⅳ was extremely significantly higher than that in group Ⅰ (P< 0.01),the apparent digestibility of CF in group Ⅶ was significantly higher than that in group Ⅰ (P< 0.05).The apparent digestibility of NDF in group Ⅳ was extremely significantly higher than that in group Ⅰ (P< 0.01),and significantly higher than that in groups Ⅱ,Ⅲ,Ⅴ and Ⅶ (P< 0.05).The apparent digestibility of ADF in group Ⅳ was significantly higher than that in groups Ⅰ,Ⅱ,Ⅴ and Ⅶ (P< 0.05).The apparent digestibility of CP in group Ⅳ was significantly higher than that in groups Ⅰ and Ⅱ (P< 0.05).③ There were no significant differences in the contents of IgG,IgA and IgM of serum among all groups (P> 0.05),the spleen index in group Ⅳ was significantly higher than that in groups Ⅰ,Ⅱ,Ⅲ and Ⅴ (P< 0.05).④There were no significant differences in the slaughter rate,half eviscerated slaughter rate and all eviscerated slaughter rate among all groups (P> 0.05).In summary,adding compound Chinese medicine and antibiotics in the feed both could improve the growth performance,nutrients apparent digestibility,immune function and slaughter performance of weaning Rex rabbits,and the appropriate compound Chinese medicine level in the diet of weaning Rex rabbits was 2%. 相似文献
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WANG Meng-zhu LIU Yan-feng WANG Wen-qi NIE Cun-xi TANG Shu-zhen ZHANG Wen-ju 《中国畜牧兽医》2015,42(9):2345-2351
This experiment was conducted to evaluate the effect of alfalfa flavonoids (Medicago sativa) on growth performance and serum indexes of sheep.This experiment was performed with hybrid F1 sheep of Suffolk sheep×Small-tailed Han sheep.Twenty-eight sheep with the body weight of (27.02±3.03) kg were randomly divided into 4 groups with 7 replicates in each group and 1 sheep per replicate.Sheep in different groups were fed diets with 0 (group Ⅰ), 0.1% (group Ⅱ), 0.2%(group Ⅲ) and 0.4% (group Ⅳ) alfalfa flavonoids, respectively.The experiment was cosisted of 7-day-preliminary trial and 41-day-formal trial.The results showed as follows:① Dietary supplementation of alfalfa flavonoids had no significant effects on growth performance of sheep(P>0.05).② Dietary supplementation of alfalfa flavonoids had significant effects on the contents of GLB, ASP, BUN, HDL and P in serum (P<0.05).Serum GLB content at the 1st day in group Ⅲ was significantly lower than that in groupsⅠand Ⅱ(P<0.05), serum ASP contents at the 1st and 21th days in group Ⅳ were significantly lower than those in group Ⅰ(P<0.05), serum BUN content at the 1st day in group Ⅳ was significantly lower than that in group Ⅰ(P<0.05), serum HDL content at the 21th day in group Ⅱ was significantly lower than that in groups Ⅰ and Ⅲ (P<0.05), serum P content in group Ⅳ at the 21th day was significantly lower than that in groups Ⅱ and Ⅲ (P<0.05).In conclusion, dietary supplementation of alfalfa flavonoids might modulate lipid metabolism, improve nitrogen utilization, maintain energy metabolic and balance Ca and P contents, and have the potential function for promoting growth and no adverse effect on liver.The results suggested that the appropriate supplemental level of alfalfa flavonoids for sheep was 0.2%. 相似文献
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WANG Zhuo SUN Wei-li YANG Ya-han WANG Kai-ying BAO Kun LI Dan-li LI Guang-yu 《中国畜牧兽医》2014,41(7):104-108
This experiment was aimed to explore the effect of different ratios of food to water of dry powder feed on growth performance,nutrient digestibility and nitrogen metabolism of growing Wusuli raccoon dogs.Thirty 11-week-old healthy Wusuli raccoon dogs with average body weight of （3.47±0.20） kg were randomly assigned into 3 groups.The Wusuli raccoon dogs were fed experimental diets with dry powder feed of ratio of food to water of 1∶2.5 （group Ⅰ）,1∶3.5（group Ⅱ）,1∶4.5 （group Ⅲ）,respectively.The pre-test period lasted for 7 days and the trial period lasted for 67 days.The results showed that the average daily feed intake of each week from 11,12 to 13 weeks in groupⅠ was significantly less than that in groups Ⅱ and Ⅲ （P＜0.05）,the average daily feed intake of each week from 14,15 to 20 weeks was no significant difference among all groups （P＞0.05）.The total intake in group Ⅰ was significantly less than that in group Ⅱ （P＜0.05）.The average daily gain of each week from 15 to 17 weeks in group Ⅲ was significantly higher than that in group Ⅰ （P＜0.05）,while the average daily gain,total weight and the rate of feed intake to body gain in other week-old were no significant differences among all groups （P＞0.05）.The protein digestibility,fat digestibility and dry matter digestibility were no significant differences among all groups （P＞0.05）.The amount of urine in group Ⅲ was extremely significantly higher than that in groups Ⅰ and Ⅱ （P＜0.01）.The nitrogen intake,fecal nitrogen,urine nitrogen,nitrogen deposition,net protein utilization and biological value of protein were no significant differences among all groups （P＞0.05）.In conclusion,the appropriate ratios of food to water of dry powder feed of growing Wusuli raccoon dogs was 1∶3.5 to 1∶4.5. 相似文献
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本试验旨在研究不同水平的复方中药对断奶獭兔生长性能、营养物质表观消化率、免疫功能及屠宰性能的影响.将70只60日龄断奶仔獭兔随机分为7组,每组5个重复,每个重复2只.Ⅰ组为空白对照组,饲喂基础日粮;Ⅱ组为抗生素对照组,饲喂在基础日粮中添加抗生素(含50 mg/kg杆菌肽锌、10 mg/kg硫酸黏杆菌素)的日粮;Ⅲ、Ⅳ、Ⅴ、Ⅵ、Ⅶ组为中药试验组,分别饲喂在基础日粮中添加1%、2%、3%、4%、5%复方中药的日粮.预试期7 d,正试期45 d.结果表明:①Ⅳ组平均日增重显著高于Ⅰ、Ⅱ、Ⅲ组(P< 0.05),料重比显著低于其他各试验组(P< 0.05).②在干物质表观消化率上,Ⅳ组显著高于Ⅰ、Ⅱ组(P< 0.05),Ⅶ组显著高于Ⅰ组 (P< 0.05);在粗纤维表观消化率上,Ⅳ组极显著高于Ⅰ组(P< 0.01),Ⅶ组显著高于Ⅰ组(P< 0.05);在中性洗涤纤维表观消化率上,Ⅳ组极显著高于Ⅰ组(P< 0.01),显著高于Ⅱ、Ⅲ、Ⅴ、Ⅶ组(P< 0.05);在酸性洗涤纤维表观消化率上,Ⅳ组显著高于Ⅰ、Ⅱ、Ⅴ、Ⅶ组(P< 0.05);在粗蛋白质表观消化率上,Ⅳ组显著高于Ⅰ、Ⅱ组(P< 0.05).③各试验组间免疫球蛋白(IgG、IgA、IgM)含量差异均不显著(P> 0.05);Ⅳ组脾脏指数显著高于Ⅰ、Ⅱ、Ⅲ、Ⅴ组(P< 0.05).④各试验组间屠宰率、半净膛屠宰率、全净膛屠宰率差异均不显著(P> 0.05).综上所述,日粮中添加复方中药和抗生素都可提高断奶獭兔生长性能、营养物质表观消化率、免疫功能及屠宰性能,且添加2%复方中药效果最好. 相似文献
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试验旨在研究苜蓿黄酮对绵羊生长性能和血清指标的影响。选择体重为(27.02±3.03)kg的萨福克羊×小尾寒羊杂交F1代公羊28只,采用单因素随机区组试验设计,分成4组,每组7个重复,每个重复1只。Ⅰ、Ⅱ、Ⅲ、Ⅳ组分别在基础日粮中添加0(对照组)、0.1%、0.2%、0.4%苜蓿黄酮。预试期7 d,正试期41 d。结果表明:①日粮中添加苜蓿黄酮对绵羊生长性能无显著影响(P>0.05)。②日粮中添加苜蓿黄酮对绵羊血清中球蛋白(GLB)、天冬氨酸(ASP)、尿素氮(BUN)、高密度脂蛋白(HDL)、磷(P)含量有显著影响(P<0.05),其中Ⅲ组GLB含量在第1天时显著低于Ⅰ、Ⅱ组(P<0.05);Ⅳ组ASP含量在第1和21天时显著低于Ⅰ组(P<0.05),BUN含量在第1天时显著低于Ⅰ组(P<0.05);Ⅱ组HDL含量在第21天时显著低于Ⅰ、Ⅲ组(P<0.05);Ⅳ组P含量在第21天时显著低于Ⅱ、Ⅲ组(P<0.05)。综上所述,日粮中添加苜蓿黄酮可调节绵羊脂类代谢,提高氮的利用率;维持体内能量代谢及平衡Ca、P含量;具有潜在的促生长功能;对肝脏功能无不良影响。建议绵羊日粮中苜蓿黄酮的适宜添加量为0.2%。 相似文献