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W.R. Teague 《African Journal of Range and Forage Science》2013,30(3):122-124
Abstract The leaf and shoot growth of Acacia karroo plants defoliated by goats was compared to that of plants in which leaf only or leaf plus shoot‐tips were removed by hand, to simulate goat browsing. There were no differences in leaf or shoot production between plants whose leaf only was removed compared to those that had both leaf and shoot‐tips removed. Leaf growth on the plants defoliated by goats at moderate levels was approximately three‐fold that on plants defoliated moderately by hand. The plants defoliated by hand produced approximately twice the amount of leaf that the undefoliated plants produced. Heavy defoliation by both hand and goat, produced approximately half the leaf growth that moderately defoliated plants produced, following equivalent defoliation. Shoot production of all plants defoliated by hand was no different to that of the undefoliated control plants and was considerably less than that of the plants defoliated by goats. 相似文献
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E M Bernoth 《DTW. Deutsche tier?rztliche Wochenschrift》1990,97(4):161-164
In the Federal Republic of Germany, 7% of the electric power is generated by Hydro-electric plants. A water current is used to drive a turbine, to generate electricity. Fish are passively drawn into the turbines by the water flow, or they migrate actively downstream (eels). Fish then may be injured or even killed. The national Countries' Fishery Acts are not sufficient to compel the prevention of fish gaining access to the turbines. To compensate for losses to the fishery, the owners of Hydro power plants can re-stock their water supplies. Superior to the Fishery Acts of the various Countries is the Federal Animal Protection Law. According to its principle, it is not allowed to cause pain, suffering or damage to an animal without a reasonable cause. It cannot be the intention of either the Fishery Acts or the Animal Protection Law to compensate losses in the fish population by re-stocking. On the contrary, the damage has to be prevented in advance. A suitable means to achieve this is the combination of electrified barriers with a bypass for fish. 相似文献
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作为改革开放前沿地带,广东省的畜牧和饲料行业一直走在国内前沿,其中不仅孕育了全国规模实力雄厚的畜牧饲料企业,在饲料添加剂领域,也崛起了一大批高科技饲料添加剂企业,广州太普乐生物科技有限公司珠海分公司(以下简称太普乐生物)就是其中之一. 相似文献
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如何防止沙门氏菌污染饲料 总被引：2，自引：0，他引：2
沙门氏菌污染饲料时有发生。为防止沙门氏菌污染饲料，可采用包括日粮处理、监测原料和成品以及监控饲料加工中的各个参数等措施。大多数报导的动物食物中毒例中，是由血清型非白痢沙门氏菌如鼠伤寒沙门氏菌、肠炎沙门氏菌和肠炎沙门氏菌海德堡变种引起的。１９８９年，英国和威尔士发病３００００例，死亡６１例。北美发病４５０００例，但死亡率较低。美国每年由沙门氏菌病造成的经济损失估计超过１０亿美元。沙门氏菌在温度高于１０℃、pH６～７．５范围内繁殖最快。在商品饲料生产条件下，饲料不可能作冷藏处理，但添加各种有机酸（甲… 相似文献
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作为畅销书，《致加西亚的信》曾被不少的企业老总批量购买．并成为企业各级员工的必读书。 相似文献
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Ian Macadam 《Tropical animal health and production》1972,4(2):90-94
Summary Mice and rats failed to develop rabies after eating brains and carcases of rabid mice. Mice and rats failed to become infected
during contact with rabid mice and rats respectively.
It would appear from these observations that mice and rats are not important in the transmission of rabies.
Sumario Ratones y ratas fallaron de desarrollar rabia despues de haber comido cerebros y carcasas de ratones rabiosos. Ratones no se infectaron por contacto con ratones rabiosos. Los ratones no son importantes en la transmission de la rabia.
Résumé Des rats et des souris ne contractèrent pas la rage après avoir mangé des cerveaux et des carcasses de souris rabiques. Des souris ne furent pas infectées pendant leur cohabitation avec des souris rabiques. Les souris et les rats ne jouent pas un r?le important dans la transmission de la rage.相似文献
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2009年11月15日,乾元浩郑州生物制药厂在平煤郑州商务会馆隆重举行了为期两天的“新一代”新支减产品上市招商大会,乾元浩生物股份有限公司副总经理邵宇等公司相关方面负责人与来自江苏、云南、山东、陕西等地的一级销售商代表共约60人出席了会议。 相似文献
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HPLC法测定猪肉中磺胺类药物残留 总被引：3，自引：0，他引：3
采用HPLC测定猪肉中磺胺类药物的残留,以Cloversil C18色谱柱、甲醇-1％乙酸水溶液作为流动相进行梯度洗脱,柱温30℃,进样量5μL,流速0.6 mL/min,240-280 nm波长紫外检测.测定结果表明,猪肉中含有磺胺嘧啶、磺胺甲基异噁唑、磺胺噻唑、磺胺二甲嘧啶和磺胺喹噁啉等磺胺类药物.利用HPLC法检测猪肉中磺胺类药物残留快速、准确. 相似文献
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T.R. Julen MS G.D. Potter PhD L.W. Greene PhD G.G. Stott DVM PhD 《Journal of Equine Veterinary Science》1995,15(10)
In a crossover experiment, eight mature Quarter Horses were exercised by simulated cutting-horse training and fed either a control concentrate (C) or a 10% fat-supplemented concentrate (F) with Bermuda grass hay in a 60:40 ratio. The experiment consisted of two 28-day experimental periods with a 28-day standardization period between treatments. Digestion trials and standardized exercise tests (SET) were conducted every 7 days during experimental periods. Dietary fat had no detrimental effect on digestion of diet constituents, and all digestion coefficients were within expected ranges. Likewise, there was no significant difference in heart rates between treatments or SET days. Plasma lactic acid concentrations did not differ (P > .05) between treatments, however, there was a decline (P < .05) with advancing SET day. When horses were fed fat, there was an increase (P < .05) in muscle glycogen storage from days 0 to 28, but there was no increase (P > .05) in muscle glycogen over time when horses were fed C. On days 7, 14, and 28, muscle glycogen utilization increased (P < .05) from day 0 when horses were fed fat but not C. Pre-exercise data were normalized such that day 0 values equaled zero, due to higher (P < .05) glycogen concentrations for C than F on day 0. Subsequently, muscle glycogen concentrations on day 28 before exercise were higher (P < .05) when horses were fed F than C. The results of this study indicate that Quarter Horses in simulated cutting-horse training can adapt to digestion of a fat-supplemented diet by day 14. However, it may take up to 28 days of adaptation to a fat-supplemented diet to observe increases in glycogen storage and use. 相似文献
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