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中草药饲料添加剂淫羊藿散对定安鹅产蛋性能影响的研究 总被引：1，自引：0，他引：1
为了研究中草药饲料添加剂淫羊藿散对定安鹅繁殖性能的影响,研究在饲料中添加一定剂量中草药饲料添加剂淫羊藿散对定安鹅进行喂养试验。结果表明:添加中草药饲料添加剂淫羊藿散后,对母鹅的总产蛋量作用不大,但对种鹅的受精率、孵化率影响较大,其中试验组的平均受精率为77.37%,孵化率为74.32%,分别比对照组高23.00%和22.54%,差异显著(P0.05)。说明中草药饲料添加剂淫羊藿散可通过激活种鹅性腺提高公鹅精液的品质和配种能力,促进卵泡的生长发育和排卵,以达到提高受精率和孵化率的目的。 相似文献
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中草药增蛋饲料添加剂由黄芪，淫羊藿，松针，梧桐叶等５味中草药组成，粉碎后按２％比例添加在饲料中饲喂产蛋鸡，产蛋率可提高１０．１个百分点，增产１７．５％，提高经济效益１７％，饲料报酬提高１２．２％。应用本添加剂每只鸡年多产蛋２．２４ｋｇ，增收２．８８元。 相似文献
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中草药饲料添加剂对蛋鸡生产性能的影响 总被引：12，自引：0，他引：12
为开发推广中草药作为饲料添加剂，笔者于３月１日至５月２３日在试验养鸡场进行了为期８４ｄ筛选两种复方中草药饲料添加剂最佳添加比例的饲喂试验。１试验药物及组方 以中兽医学理论为依据，经过反复论证筛选，研制成两种中草药添加剂。方１由淫羊藿、何首乌、麦饭石等中草药组成，具有温肾壮阳、滋补肾精等作用。方２由蛇床子、淫羊藿、何首乌等中草药组成，具有温肾壮阳、补肾益精等作用。 配制方法：将上述两复方中的中草药干燥后，加工粉碎为细末，过６０目筛，按配方比例混合均匀，分装后存放于通风干燥处备用。２试验方法２．１试鸡… 相似文献
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传统抗菌剂（抗生素和化学合成药）添加剂常能产生耐药性,且易残留于肉、蛋、奶等畜产品中,给人类健康造成危害,因此很多国家已禁止人畜共用的抗生素类及磺胺类药物作为饲料添加剂使用,并都在寻找改进和替代抗生素等添加剂。我国传统的天然中药添加剂因具成本低廉、作用广泛、毒副作用小、无耐药性和低残留等优点而倍受重视。笔者选取资源较广价格较价廉的广东土牛膝、穿心莲、大青叶、锁阳、淫羊藿和胡芦巴等6种药材组方,通过饲养试验筛选出3个具有良好促进肉鸡生长的复方（①穿心莲-大青叶-锁阳-胡芦巴、②广东土牛膝-大青叶-锁阳-淫羊藿和③广东土牛膝-大青叶-胡芦巴-淫羊藿）。其中①号复方在添加量为1．5％时可提高黄羽肉鸡增重8％,降低耗料增重比6％;②号复方在添加量为1．0％时可提高0周～3周黄羽肉鸡增重9％和降耗料增重比6％,提高4周-7周龄黄羽肉鸡增重26％和降耗料增重比19％;③号复方在添加量为1．0％时可提高0周-3周黄羽肉鸡增重3％和降耗料增重比2％,提高4周-7周龄黄羽肉鸡增重22％及降低耗料增重比16％。 相似文献
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日粮中分别添加0．5％、1％、1．5％的中草药添加剂对60日龄育肥兔进行试验，结果表明，中草药添加剂能提高育肥兔的的增重率和饲料报酬，降低料肉比，获得较好的经济效益。3个试验组中，以1％的添加组效果最好。 相似文献
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《中国畜牧兽医》2015,(9)
试验旨在研究益生菌—中草药复方制剂对蛋鸡输卵管组织、生产性能及蛋品质的影响。选取体质优良的45周龄的海兰褐蛋鸡720只,随机分成4组,每组3个重复,每个重复60只。对照组饲喂不含抗生素的基础日粮,Ⅰ、Ⅱ和Ⅲ组为试验组,分别在基础日粮中添加1.0‰中草药组方一(败酱草、蒲公英、板蓝根、连翘等)、1.0‰中草药组方二(金银花、黄芪、淫羊藿、益母草等)和1.0‰中草药组方三(大青叶、黄柏、黄芩、栀子等),且各试验组均添加1.5‰复合益生菌。预试期7d,正试期28d。结果表明:1益生菌—中草药复方制剂能修复蛋鸡受损的输卵管组织,减少输卵管与周围组织的黏连,使输卵管保持通畅性,降低蛋鸡输卵管组织中肿瘤坏死因子-α(TNF-α)和表皮生长因子受体(EGFR)含量,尤以Ⅱ组效果最好,分别较对照组降低40.85%和17.79%,差异显著(P0.05);2与对照组相比,Ⅱ组可显著提高蛋鸡产蛋率(P0.05),显著降低料蛋比和软破蛋率(P0.05);3与对照组相比,Ⅱ组可显著提高48和50周龄蛋鸡的蛋形指数和蛋黄比率(P0.05)。由此可知,日粮中添加益生菌—中草药复方制剂能在一定程度上减轻蛋鸡输卵管炎症反应,提高产蛋率,改善蛋品质,其中以Ⅱ组益生菌和金银花、黄芪、淫羊藿、益母草等中草药联合使用效果最好。 相似文献
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选用中草药数味，经适当炮制（炒制）、粉碎后按比例与营养类物质及载体混匀而成粉状饲料添加剂，进行了两批试验，在试验1中，48只425日龄的产蛋鸡分2组。试验组基础日粮中添加0．20％的该复合饲料添加剂，饲喂28天。结果表明，试验组平均产蛋率提高19．68％，料蛋比降低14．88％。在饲养试验2中，640只168日龄的产蛋鸡分为4组，采用单因子四水平试验设计，在玉米－大豆饼粉基础日粮中分别添加0％、0．15％、0．20％和0．25％的中草药复合饲料添加剂，预试期15天，正试期80天，结果表明，在产蛋鸡基础日粮中添加0．15％的该复合饲料添加剂，可显著提高平均产蛋率（P＜0．01），和饲料利用率，同时能获得相当可观的经济效益，锔喂蛋鸡亦无任何毒副作用。 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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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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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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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