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"逆向思维养蜂法"是经《蜜蜂杂志》独家推出的一种全新的中蜂活框继箱饲养法。它有别于传承了近百年的、翻版和克隆于现代西蜂饲养法的中蜂活框继箱饲养法,更吻合中蜂生物学特性,深深扎根于中国传统养蜂法沃土之中,与其更为接近,具有鲜明民族特色和风格。这种养蜂法,经过近几年来不懈的宣传和介绍,已经引起国内中蜂饲养界的极大关注并开始运用于生产,从而实现了从书本到生产的一次飞跃。 相似文献
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一、传统养蜂法所谓的传统养蜂法,就是我国养蜂界长期应用的养蜂法。由于地区不同,蜂种不同,自然形成了区域性的管理方法。为什么传统养蜂法能适用于各地呢?从各种书刊和养蜂生产实践中可以得出,传统养蜂法抗逆 相似文献
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试论“数控养蜂法”的理论和实践上海市杨浦区离休干部费超充一、“数控养蜂法”是怎样的养蜂理论?1.“数控养蜂法”(以下简称“数控”)是以辩证唯物主义为指导思想的养蜂法。“数控”公开宣称唯物辩证法为自己的指导思想。“数控”是杨多福同志在养蜂生产和科研中,... 相似文献
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肉鸡生产的主要目标是使鸡的巨大生长潜力最大化,从而可以获得较大的体重和较高的胸部肌肉产量。然而,这两个目标都与其繁殖力成负相关。因此,如何维持和提高肉种鸡的繁殖力已经成为我们必须面临的一项挑战。现在的问题是,肉鸡的繁殖力是否已经达到临界点,并且肉种鸡繁殖力的改变是否是不可逆转的。 相似文献
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建立以苜蓿干草日粮为基础的高产优质高效奶牛业 总被引:6,自引:0,他引:6
奶业是世界上许多国家的重要产业,牛奶产量稳中有升,奶牛存栏稳中有降,奶牛单产水平持续增加,奶牛品种不断优化、饲养条件不断改善、集约化程度不断提高是世界奶业生产的发展方向。 以美国为例,美国奶牛良种化程度高,主要 相似文献
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近年来,随着全球气候变暖,辽宁省大部分地区夏季出现持续高温天气,对一些工厂化猪场猪的繁殖性能带来了很大的影响。笔者对营口市盖州、大石桥、老边几个万头工厂化猪场2000年至2004年夏季(6-8月)猪的繁殖成绩资料进行了调查统计,结果表明,在7、8两月接受交配的母猪中未能分娩的比例比10月至来年5月交配母猪的不分娩率(15%-10%)高出10%。在此期间母猪产后产道感染引起的高烧无乳发病率明显增多。 相似文献
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通过调整树形结构,加强花果管理、施肥管理和病虫防治等技术,改造放任生长的杨梅大树,不仅使果品品质和产量显著提高,而且平抑了大小年结果现象,采摘速度和安全系数也大大提高。 相似文献
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Alexander J. German Shelley L. Holden Thomas Bissot Penelope J. Morris Vincent Biourge 《Veterinary journal (London, England : 1997)》2010,183(3):294-297
A newly-formulated, high protein high fibre (HPHF) diet has recently been shown to improve satiety in dogs. The current study examined its performance during weight loss in client-owned dogs with naturally-occurring obesity. Fifteen dogs were fed the HPHF diet, whilst a matched ‘control’ group of 27 dogs, received a high protein medium fibre diet (HPMF), with an equivalent caloric density. Baseline characteristics (signalment, percentage overweight, and body fat percentage) were not significantly different between groups. However, percentage weight loss was greater (median [range] 31.8% [12.0–41.2%] vs. 20.0% [5.9–45.0%], P = 0.016) and mean rate of weight loss faster (median [range] 1.0%/week [0.3–1.6%] vs. 0.7%/week [0.3–1.5%], P = 0.028) on HPHF compared with HPMF. Percentage body fat mass decrease (measured by dual-energy X-ray absorptiometry) was also greater in dogs fed the HPHF diet (median (range] 58% [32–85%) vs. 37% [15–72%), P = 0.002). Thus, a diet formulated to include high levels of both protein and fibre, improves outcome during weight loss in obese dogs. 相似文献
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Asare A 《Journal of veterinary medical education》2007,34(2):47-50
There is a documented lack of racial diversity in veterinary medicine. It has been suggested that lack of animal ownership by minorities, cultural and ethnic biases relating to animals, and a lack of role models of color within the veterinary profession are reasons for the lack of racial diversity in veterinary medicine. The purpose of this study was to survey the attitudes of minority junior high and high school students toward veterinary medicine. It was hypothesized that African American and Latino students in New York City (NYC) would have limited experience with veterinary medicine and would not have a favorable attitude toward the profession. In fact, the survey, which was sent to several NYC schools, found that minority students have a positive view of animals and of veterinary medicine. The survey also showed that a deficiency of minority role models for students, a lack of interest in and enjoyment of veterinary medicine on the part of students, a perception on the part of students that veterinary medicine does not provide a satisfying lifestyle, and inadequate student exposure to the profession are key factors in the lack of racial diversity in veterinary medicine. 相似文献
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