共查询到20条相似文献,搜索用时 328 毫秒
1.
2.
3.
4.
5.
6.
《养殖与饲料.饲料世界》2004,(12):48-49
在如今的酸奶市场上,“乳酸饮料”和“酸性乳饮料”占据相当大的比重;在“乳酸菌饮料”和“搅拌型酸奶”类别内,尚无大品牌出现,品牌整合度较低。常温产品中,早期的酸奶市场中的主流产品“调制型酸性乳饮料”和“发酵型乳酸饮料”,由于没有低温保鲜限制,得以较快速的发展,但是其营养价值低,淡出市场是大势所趋。低温产品中,低温乳酸菌饮料及纯酸奶将得到快速发展,此类产品能提供丰富的营养物质,还能调节机体内微生态的平衡,经常食用,能够调整肠道功能、预防癌症、养颜,是一种“功 相似文献
7.
8.
9.
10.
11.
2010年,笔者对栗园草场牛耳大黄蔓延挤占其他牧草生存空间状况进行了调查,目前该草场已处于牛耳大黄蔓延最严重阶段,危害区域集中分布在草场平坦肥沃的地块和道路附近,尤其是水肥充足的区域。该植物的空间分布格局和繁殖特征表明,它可以利用种子向外进行远距离随机扩散,占据一定位置后,再以无性繁殖方式和种子扩展侵占范围, 相似文献
12.
碘伏毒理研究综述 总被引:1,自引:0,他引:1
碘伏是碘与表面活性剂(载体)及增强剂形成的不定型络合物,具有高效、广谱、贮存稳定、毒性低等特点。小鼠的LD50大于5000mg/kg·BW,属于实际无毒。蓄积系数均大于5,为弱蓄积作用。慢性毒性试验的最大无作用剂量为1000mg/kg。碘伏无致突变作用。过敏反应很少见,出现口腔粘膜瘙痒、肿胀和灼痛感,并伴有头痛、头昏,嗜睡等症状。碘伏有效浓度为5%时对完整皮肤和破损皮肤无刺激性,对阴道粘膜有极轻刺激性。有效浓度大于2.5%时,对角膜上皮产生明显损伤作用,用1.5%有效浓度注入前房即可产生内皮毒性作用。有效浓度小于1.0%时对角膜上皮和内皮无毒性。 相似文献
13.
近年来,随着消费者和食品加工业对肉质的要求越来越高,猪肉品质的改良问题日益受到人们的重视,世界各国学者也相继从肌肉组织学、生理生化指标和遗传学等方面对猪肉品质进行了相关研究. 相似文献
15.
16.
Bastian S 《Journal of the American Veterinary Medical Association》2008,233(9):1394-5; author reply 1395-6
17.
大蒜素对鲤鱼生长的研究 总被引:11,自引:0,他引:11
大蒜素(Allitridi)是一种广谱抗菌药,具有防癌、降压、健胃、抗病毒等多种功能,在我国医疗上的应用历史悠久。早在晋代就有大蒜油治疗家禽疾病的记录,现已广泛用于医药、兽药、农药和食品添加剂中,近年来已开发应用于动物饲料添加剂。大量的研究结果表明:大蒜素的作用广泛、效果显著、无残留、无抗药性,不产生致畸、致癌、致突变性,对提高动物采食量、促进生长、改善动物产品肉质及预防疾病等方面有良好的应用效果。为研究大蒜素对鲤鱼生长的影响,我们近期在北京师范大学生命科学系进行了鲤鱼养殖试验。1 材料与方法1.1 试验材… 相似文献
18.
19.
OBJECTIVE: To determine commonly used girth tensions in Thoroughbred racehorses in the Melbourne metropolitan area. DESIGN: A prospective industry survey. METHODS: Strappers were instructed to tension girths, using the same saddle, under-saddle packing and girth, sufficiently to hold the saddle for racing. These tensions were continuously recorded by an in-line load cell in the girth. Seventeen strappers from five stables participated in the study, which was conducted on 91 horses. RESULTS: Resting girth tensions varied considerably. The mean tension on inhalation was 13 +/- 0.4 kg. Male strappers recorded higher tensions than females for all indices measured. Age and girth size of the horse did not significantly influence results. CONCLUSION: This study confirms that there is no standard for application of a girth and saddle in the Thoroughbred racing industry and the range of tensions applied was large. Strappers were unable to reliably apply the same tensions between horses. Values recorded at the extremes of the range seem inappropriate for racing conditions as low values would result in slippage of the saddle and higher values may result in girth galls and possible reduction in athletic performance. Further work is necessary to determine the point at which girth tension affects performance. 相似文献
20.