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香型中草药饲料添加剂使用香型中草药作饲料添加剂,进行艾维菌商品代肉仔鸡的饲喂试验,结果表明:试验组鸡的日增重、饲料转化率、成活率明显高于对照组。且试验组的鸡舍臭味降低,环境改善。中草药添加剂的成分:藿香、佩兰、厚朴、草豆蔻、白术、苍术、甘草、小茴香等... 相似文献
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中草药饲料添加剂对肉仔鸡生长性能和免疫器官指数的影响 总被引:2,自引:0,他引:2
为了研究日粮中添加不同剂量的中草药饲料添加剂对肉仔鸡生长性能和免疫器官指数的影响,选取体重接近的健康1日龄AA肉仔鸡288只,按体重均匀分为4组,每组6个重复,每个重复12只鸡,即每组72只鸡。设对照组:日粮中不添加中草药饲料添加剂;试验Ⅰ组:日粮中添加0.5%中草药饲料添加剂;试验Ⅱ组:日粮中添加1%中草药饲料添加剂;试验Ⅲ组:日粮中添加2%中草药饲料添加剂。进行为期42d的饲养试验,测定各组的采食量、日增重、料重比以及脾脏指数和法氏囊指数。结果表明,肉仔鸡日粮中添加复方中草药制剂能够显著提高生长性能及免疫器官指数,日粮中添加1%复方中草药制剂效果最好。 相似文献
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选用360只艾维菌肉仔鸡,随机分成4组.对照组饲喂基础日粮,试验组在基础日粮中分别添加金霉素(5mg/kg)、1%和2%的有益生物菌群,比较试验鸡的生产性能。研究结果表明:日粮中添加1%和2%的有益生物菌群可显著提高肉鸡的日增重、饲料效率、成活率和屠宰率(P〈0.05);有益生物菌群可替代金霉素提高肉鸡生产性能。 相似文献
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中草药饲料添加剂对肉仔鸡肉品质的影响 总被引:1,自引:0,他引:1
为了研究中草药饲料添加剂对肉仔鸡肉品质的影响;选取体重接近的健康1日龄AA肉仔鸡288只,按体重均匀分为4组,每组6个重复,每个重复12只鸡,即每组72只鸡。设对照组:日粮中不添加中草药饲料添加剂;试验Ⅰ组:日粮中添加0.5%中草药饲料添加剂;试验Ⅱ组:日粮中添加1%中草药饲料添加剂;试验Ⅲ组:日粮中添加2%中草药饲料添加剂。进行为期42 d的饲养试验。结果表明:添加复方中药制剂对肉仔鸡的肉品质有一定的改善作用,能够提高肉仔鸡粗蛋白、粗脂肪含量及肉色,并有降低滴水损失的趋势;日粮中添加1%复方中药制剂效果最好。 相似文献
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香辛型中草药添加剂对肉仔鸡生长和屠宰性能的影响 总被引:10,自引:0,他引:10
选用120只21日龄肉仔鸡,随机分成对照组和试验组2组,每组3个重复,对照组饲喂基础日粮,试验组饲喂在基础日粮中添加0.5%香辛型中草药添加剂的日粮,经21天的饲喂试验,研究香辛型中草药添加剂对肉用仔鸡生长和屠宰性能的影响,结果表明:在肉用仔鸡日粮中添加香辛型中草药添加剂可显著提高肉用仔鸡的体重、平均日增重、腿肌率和胸肌pH值,显著降低腹脂率和皮脂厚。 相似文献
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刘彦慈 《兽药与饲料添加剂》2009,14(3):4-5
270羽艾维菌肉仔鸡随机分为6组,每组3个重复,试验期42d,第Ⅰ组为基础对照组;第Ⅱ组在基础日粮中添加50mg/kg杆菌肽锌,第Ⅲ、Ⅳ、Ⅴ、Ⅵ组在基础日粮基础上分别添加0.5%、1.0%、1.5%、2.0%香型中草药添加剂。结果表明,香型中草药添加剂能提高肉仔鸡日增重,效果与抗生素组相近,其中以1.5%添加量效果最佳。 相似文献
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中草药饲料添加剂对肉仔鸡血液指标的影响 总被引:1,自引:0,他引:1
为了研究日粮中添加不同剂量的中草药饲料添加剂对内仔鸡血液指标的影响,选取体重接近的健康1日龄AA肉仔鸡288只,按体重均匀分为4组,每组6个重复,每个重复12只鸡,即每组72只鸡.设对照组:日粮中不添加中草药饲料添加剂;试验Ⅰ组:日粮中添加0.5%中草药饲料添加剂:试验Ⅱ组:日粮中添加1%中草药饲料添加剂;试验Ⅲ组:日粮中添加2%中草药饲料添加剂.进行为期42 d的饲养试验.测定各组的总蛋白(TP)、白蛋白(ALB)、碱性磷酸酶(ALP)、谷丙转氨酶(GPT)、谷草转氨酶(GOT)、尿素氮(BUN)、免疫球蛋白A(IgA)、免疫球蛋白M(IgM)、免疫球蛋白G(IgG).结果表明,添加复方中草药制剂能够提高肉仔鸡血清总蛋白、白蛋白、球蛋白以及免疫球蛋白含量,降低血清尿素氮含量,改善蛋白质的利用率,提高免疫功能.日粮中添加1%复方中药制剂效果最好. 相似文献
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根据中草药和抗菌素的助长原理配制而成的复合增重剂,以1%的比例添加于艾维菌肉仔鸡日粮中,观察49 d,试验组鸡只平均出栏重比对照组提高11.73%,饲料消化率提高9.77%,肉仔鸡饲养期发病率、死亡率、腿疾、腹水症等都显著得到改善;冬季生产条件下,舍内氨气浓度降低66.04%;使用安全,饲养效益提高2.23倍。 相似文献
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日粮中添加溪黄草对三黄肉仔鸡生长性能及血液生化指标的影响 总被引:1,自引:0,他引:1
试验选用1日龄三黄肉仔鸡210只随机分为7组,每组3个重复,每个重复10只,研究溪黄草对三黄肉仔鸡生长性能和血液生化指标的影响。Ⅰ组饲喂基础日粮,Ⅱ组和Ⅲ组分别在基础日粮中添加0.2%恩诺沙星粉末和1%双黄连粉末,Ⅳ~Ⅶ组分别在基础日粮中添加0.5%、1%、2%和4%溪黄草,进行为期49 d的饲养试验,测定肉仔鸡的生长性能和血液生化指标。结果表明,日粮中添加2%溪黄草可使4周龄以后三黄肉仔鸡平均日增重比空白对照组显著提高13.1%~22.7%,料重比比空白对照组降低8.1%~14.2%,其效果优于双黄连和恩诺沙星;同时可提高血清TP、GLO和GLU含量,维持血清ALB含量基本稳定,降低35日龄后鸡血清TC。 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献