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<正>油茶(Camellia oleifera Abel),属山茶科(Theaceae)山茶属(Camellia L.)植物,为常绿小乔木或灌木,是我国特有的木本食用油料树种。目前,我国油茶面积约有4500万亩,油茶籽年产量100万t左右。榨油后的茶籽饼粕含有茶籽多糖、 相似文献
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油茶粕饲料在异育银鲫养殖中的应用研究 总被引:9,自引:3,他引:6
油茶(Cam ellia Oleifera)是我国南方丘陵地区的一种重要油料植物,盛产于湖南、湖北、江西、广西等地。我国油茶林种植面积达400万hm2,占全国木本食用油料作物的80%以上,是世界上油茶品种最多、分布最广、茶籽产量最高的国家,年产油茶籽约54.98万吨、茶油15万余吨、油茶籽副产品——油茶饼粕的年平均产量约为39.71万吨[1]。由此可见,我国的油茶粕资源十分丰富。目前,我国对油茶籽的利用基本上仅限于榨油,对榨油后剩余茶籽饼粕的利用还很不够,大多直接作清塘剂或肥料使用。经检测分析,油茶饼粕中富含茶皂素、蛋白质、脂肪、淀粉和粗纤维等成… 相似文献
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蜜蜂油茶蜜中毒物质的分析研究 总被引:2,自引:0,他引:2
油茶[Camellia Qleifera Abel]是我国南方的主要经济木本植物。它花期长、泌蜜量大。但是油茶蜜中未知成份的毒性作用很大,使蜜蜂采食后群势下降而难以越冬,对养蜂业造成极大危害。为找出油茶蜜中引起蜜蜂中毒的毒性成份,本实验以洋槐蜜作为对照,进行比较研究,采用化学分析、薄层 相似文献
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油茶籽及茶枯饼中氨基酸的测定与营养评价的研究 总被引:2,自引:0,他引:2
油茶籽及茶枯饼中氨基酸的测定与营养评价的研究江西农业大学刘晓庚前言油茶(CameliaoleiferaAbel)是我国最主要的木本油料植物。在我国油茶的栽培面积大、分布广、产量高,勘称世界之最。据统计,我国近年来油茶籽平均年产量约为54~56万吨,油... 相似文献
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油茶蜜源究竟能否利用席芳贵对蜜蜂是否可利用油茶蜜源的研究和讨论从1957年开始,历经三四十年,其间报道采油茶失败的很多,但报道采油茶成功的也不少。我从事养蜂工作十几年,从未听说供销社或蜂业公司收购了多少吨油茶蜜。如果全国333万多hm2油茶能被蜜蜂利... 相似文献
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本试验通过研究茶籽提取物对生长猪生长性能和血清生化指标的影响,旨在探讨茶籽提取物替代抗生素的可行性。将20头(31.03±2.13)kg的长×大健康阉公猪按照体重随机分为2组,每组10头,采用FIRE誖全自动生长性能测定系统对试验猪生长性能进行精确化测定,用茶籽提取物和抗生素进行饲养对比试验,试验期48d。其中抗生素组为基础日粮添加120mg/kg的吉他霉素(50%),试验组为基础日粮添加600mg/kg的茶籽提取物。结果表明:与抗生素组相比,茶籽提取物组生长猪的平均日增重(ADG)提高了4.7%(P0.05),平均日采食量(ADFI)提高了4.5%(P0.05),料重比(F/G)降低了4.2%(P0.05),血清尿素氮(SUN)浓度降低了24.3%(P0.05),血清免疫球蛋白G(IgG)水平提高了15.2%(P0.05),血清γ-干扰素(INF-γ)水平提高了17.3%(P0.05)。这表明,日粮中用600mg/kg的茶籽提取物取代抗生素,生长猪的生长性能得到改善,免疫功能得到提高。 相似文献
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试验选用体重相近([31.03±2.13)kg]的长×大健康阉公猪20头,按照体重随机分为2个处理,每个处理10个重复,每个重复1头,采用FIRE全自动生长性能测定系统对试验猪生长性能进行精确化测定,用茶籽提取物和抗生素进行饲养对比试验,试验期48d。其中抗生素组为基础日粮添加120mg/kg的吉他霉素(50%),试验组为基础日粮添加600mg/kg的茶籽提取物。结果表明:与抗生素组相比,茶籽提取物组生长猪的平均日增重提高了4.7%,平均日采食量提高了4.5%,料重比降低了4.2%;血清超氧化物歧化酶活力提高了9.9%,总抗氧化能力提高了13.1%,丙二醛含量降低了4.8%。试验提示,生长猪日粮中用600mg/kg的茶籽提取物取代抗生素,生长猪的生长性能得到改善,抗氧化能力得到增强。 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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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
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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