警犬"瑜佳"的喜怒哀乐

四岁大的史宾格犬"瑜佳",有着史宾格犬特有的外表,棕色毛的小脑袋,鼻子、嘴巴的一抹白色就像马戏团的小丑,棕色的毛裹着背部,雪白的肚皮、脖子,特别是它的两条后腿上方近屁股的位置有两撮白毛,火焰形,包围着它的小屁股卷卷曲曲     

南鸭北养为哪般?

谁也不曾料想,在鲁西北临邑县临盘镇这个十年九旱、过去从未养过水禽的地方,近年却冒出一个存栏200多万只蛋鸭的新产业.     

"人、机、料、法、环"与兽药GMP的关系

本文尝试将质量管理学中五要素"人、机、料、法、环"的重要概念引入到兽药GMP管理体系中来,便于记忆和理解,有助于进一步认识、掌握和运行GMP.     

Cleavage of zearalenone-glycoside, a "masked" mycotoxin, during digestion in swine

Comparative analyses of cereal samples pretreated with or without beta-glucosidase indicate the presence of zearalenone-glycoside. To examine the stability of zearalenone-glycoside during digestion, mixed feed was artificially contaminated with synthesized zearalenone-4-beta-D-glucopyranoside (395 micrograms/kg) and fed to a pig over a period of 14 days. The metabolites detected in feces and urine samples were zearalenone and alpha-zearalenol. These results demonstrate that zearalenone-4-beta-D-glucopyranoside is decomposed during digestion and the aglucone, zearalenone, is released. Since zearalenone-glycoside is not detected during routine analysis, but hydrolysed during digestion, it seems likely that such "masked mycotoxins" are involved in cases of mycotoxicoses.     

“狼”来了，国内油脂企业如何应对

“入世”后,国内的油脂行业将受到较强的冲击,但这并不是说国内油脂加工贸易企业已经被推向了绝境。任何事情都有它的两面性,只要我们能够正确调整经营战略和经营思想,就能够抓住机遇,迎接挑战,在市场竞争中不断发展和壮大。笔者认为,应该重点做好如下几方面的工作。 一、争取配额。油脂进口配额的增加,实际上就是油脂进出口贸易机会的增加,是油脂贸易空间的扩展。根据国家     

Evaluation of computer-aided learning illustrated by the multimedia program, "Hereditary diseases of the dog--joints,bones, musculature"

Results are presented on the evaluation of the interactive tutorial and information system "Hereditary diseases of the dog-joints, bones, musculature" which was developed at the Institute of Animal Breeding and Genetics and the Clinic for Small Animals at the School of Veterinary Medicine Hannover, aiming to improve the problem consciousness for the genetic background of most diseases of the musculoskeletal system of the dog. It addresses veterinarians, students of veterinary medicine and also dog breeders and owners. The programme offers extensive basic information about all known hereditary diseases of the joints, bones and muscles of the dog and gives also information on symptoms, diagnosis, therapy, distribution and genetics of the diseases. The user can apply it as a reference book, as a tutorial to complete or control his knowledge or to gain a fast overview of the up-to-date knowledge. The tutorial was evaluated by students in the second and third academic year, veterinary surgeons and dog breeders. Computer assisted learning was judged as very positive by all test persons. The programme received from all test persons an average score of 2.11 +/- 0.77 on a scale from 1 (very good) to 5 (unsatisfactory). The results show that computer-aided learning can be an effective and stimulating substitution to traditional learning and learning materials.