期刊文献+
共找到15篇文章
< 1 >
每页显示 20 50 100
断乳仔猪的养育技术
1
作者 侯忠礼 李哲 《农村养殖技术》 2007年第07X期9-9,共1页
一、断奶仔猪的生理特点1.断奶仔猪正处于强烈的生长发育阶段,各组织器官需进一步完善,特别是消化器官更为突出。2.断奶仔猪采食较多的饲料时,其中的蛋白质和矿物质容易与猪胃内的游离盐酸相结合,不能充分抑制消化道内大肠杆菌的... 一、断奶仔猪的生理特点1.断奶仔猪正处于强烈的生长发育阶段,各组织器官需进一步完善,特别是消化器官更为突出。2.断奶仔猪采食较多的饲料时,其中的蛋白质和矿物质容易与猪胃内的游离盐酸相结合,不能充分抑制消化道内大肠杆菌的繁殖,常引起腹泻疾病。 展开更多
关键词 断乳仔猪 养育技术 生长发育阶段 断奶仔猪 生理特点 组织器官 消化器官
原文传递
哺乳仔猪现代养育技术
2
作者 屈志洁 《农家致富顾问》 2017年第22期39-39,共1页
哺乳仔猪是指出生至断奶的仔猪,管理好哺乳仔猪是搞好养猪生产的基础,仔猪培育的成败既关系着养猪生产水平的高低,又对提高养猪经济效益和加速猪群周转起着十分重要的作用.仔猪出生后,对外界环境的调节适应能力相对较低,如果饲养管理不... 哺乳仔猪是指出生至断奶的仔猪,管理好哺乳仔猪是搞好养猪生产的基础,仔猪培育的成败既关系着养猪生产水平的高低,又对提高养猪经济效益和加速猪群周转起着十分重要的作用.仔猪出生后,对外界环境的调节适应能力相对较低,如果饲养管理不当,很容易引起仔猪的死亡.哺乳仔猪的养育技术,哺乳仔猪的养育具有很重要的意义,哺乳仔猪阶段养育最主要的目标,是最大限度地减少哺乳期间的死亡,哺乳仔猪是猪一生中最容易患病死亡的一个阶段,哺乳仔猪是猪一生中生长发育最快的一个时期. 展开更多
关键词 哺乳 养育技术
原文传递
断乳仔猪的饲养技术
3
作者 刘玲 《山区开发》 2003年第7期40-40,共1页
为提高母猪的利用强度和年生产力,仔猪的早期断乳较为广泛的应用于生产。早期断乳可缩短母猪的繁殖间隔,增加母猪的年产窝数。同时,也可提高饲料的利用率。仔猪的早期断乳可直接利用饲料中的营养,减少了饲料的转化层次,饲料利用率可提... 为提高母猪的利用强度和年生产力,仔猪的早期断乳较为广泛的应用于生产。早期断乳可缩短母猪的繁殖间隔,增加母猪的年产窝数。同时,也可提高饲料的利用率。仔猪的早期断乳可直接利用饲料中的营养,减少了饲料的转化层次,饲料利用率可提高50%~60%。另外母仔的早期分离可防止母猪压死仔猪和减少仔猪的传染疾病和寄生虫病的机会,提高仔猪的哺育率。 展开更多
关键词 断乳仔猪 饲养技术 断乳方法 养育技术 有机酸 饲料添加剂
下载PDF
浅谈贵州省三都县稻田养鱼技术
4
作者 李玉梅 莫秀兄 《农家科技(理论版)》 2019年第12期87-87,共1页
稻田养鱼是利用稻田既种稻又养鱼,稻鱼共生互利,通过生物结构改变促进功能提升,实现“一水两用,一田两用”,发挥稻田的最大功能,实现稻与鱼的耦合、生物与环境的耦合;本文主要讲述稻田养鱼技术,现将主要技术总结出来,以供生产者参考。
关键词 稻田养鱼 养育技术 三都县
下载PDF
通化地区3161例学龄前儿童维生素D缺乏普查分析 被引量:9
5
作者 陈鸣鸣 孙琪 《中国妇幼保健》 CAS 北大核心 2005年第3期344-345,共2页
目的 :为掌握通化地区学龄前儿童佝偻病发病、治疗情况 ,分析相关影响因素。方法 :我们于 2 0 0 2年对通化地区 3 161名儿童进行筛查、骨碱性磷酸酶 (BALP)技术检测及家长问卷调查。结果 :各年龄组儿童按BALP值诊断佝偻病的发病率 18 0 ... 目的 :为掌握通化地区学龄前儿童佝偻病发病、治疗情况 ,分析相关影响因素。方法 :我们于 2 0 0 2年对通化地区 3 161名儿童进行筛查、骨碱性磷酸酶 (BALP)技术检测及家长问卷调查。结果 :各年龄组儿童按BALP值诊断佝偻病的发病率 18 0 %~ 68 0 % ,可疑患病 5 0 0 %~ 80 1% ,按临床症状及体征诊断佝偻病发病率 1 0 %~ 18 9%。母亲养育技术、文化水平等与发病率正相关。结论 :儿童佝偻病发病率很高 ,依靠临床表现诊断率有很高的漏诊 ;农村发病率较高 ,3岁后佝偻病发病率目前有增高的趋势 ;母亲养育技术的水平、职业及文化程度等与儿童佝偻病有很大的相关性。 展开更多
关键词 儿童佝偻病 母亲养育技术
下载PDF
专家引路 搬开养猪业的绊脚石——访我国著名养猪专家王爱国教授 被引量:4
6
作者 余威 包桂花 《动物科学与动物医学》 2003年第8期26-29,共4页
中国WTO的加入给农业以及畜牧业带来了广阔的发展空间,随着科学技术的不断发展,我国的养殖业尤其是传统产业———养猪业在优化产业结构、调整发展目标的基础上神速发展。与此同时,由于市场供求关系和激烈的市场竞争,养猪业面临着诸多... 中国WTO的加入给农业以及畜牧业带来了广阔的发展空间,随着科学技术的不断发展,我国的养殖业尤其是传统产业———养猪业在优化产业结构、调整发展目标的基础上神速发展。与此同时,由于市场供求关系和激烈的市场竞争,养猪业面临着诸多潜在的危机和不容忽视的问题,在猪业专刊推出之际,本刊记者采访了著名养猪专家王爱国教授,希望可以从中给养猪企业提供一些实用的信息。 展开更多
关键词 养猪业 中国 生产企业 哺乳仔猪 生理特点 养育技术
下载PDF
王金印自述
7
作者 孙景茂 《中国水产》 1983年第6期18-19,共2页
我叫王金印,是山东省聊城县道口铺公社田庙大队社员,今年59岁。我大儿子在外地工作,二儿子分家另过,负责种我的口粮田。我们老两口过日子,自在清闲。
关键词 王金印 养育技术 施肥 责任制 渔业管理
下载PDF
Advances in Studies of the Effects of Starvation on Growth and Development of Fish Larvae 被引量:2
8
作者 SHAN Xiujuan HUANG Wei +1 位作者 CAO Liang WU Yunfei 《Journal of Ocean University of China》 SCIE CAS 2008年第3期319-326,共8页
Starvation has important effects on early development of fish. It determines the survival and growth of fish larvae,and plays an important role in the dynamics of fish population and fisheries recruitment. In this rev... Starvation has important effects on early development of fish. It determines the survival and growth of fish larvae,and plays an important role in the dynamics of fish population and fisheries recruitment. In this review,we discuss the current studies about the effects of starvation on growth and development of fish larval stage. The goals of this review are to understand some adaptive mechanisms and ecological countermeasures of starved fish larvae and to provide the scientific guideline for exploring early life history processes,evaluating the nutrition condition and growth of larval fish,protecting fish resource and breeding fish larvae. 展开更多
关键词 STARVATION GROWTH development fish larvae
下载PDF
Contextualizing physical literacy in the school environment: The challenges 被引量:3
9
作者 Darla M.Castelli Jeanne M.Barcelona Lynne Bryant 《Journal of Sport and Health Science》 SCIE 2015年第2期156-163,共8页
The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus... The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus is overviewed. The challenges of transitioning from a physically educated to a physically literate person as the primary learning outcome of physical education may inhibit progress. Five prioritized recom- mendations are made to assist teachers in overcoming such barriers: (a) whole of school approach, (b) effective, differentiated pedagogy, (c) integration of technology for individualized tracking of progress, (d) supportive school climate, and (e) alignment of local efforts with national initiatives. 展开更多
关键词 Differentiated instruction Physical activity Physical literacy Whole of school approach
下载PDF
Growth and F_v/F_m in embryos of Hizikia fusiformis (Harvey) Okamura (Sargassaceae,Phaeophyta) cultured under different temperature and irradiance conditions
10
作者 WANG Longle ZHANG Xin +2 位作者 ZOU Dinghui CHEN Weizhou JIANG Heng 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2018年第5期1798-1805,共8页
Understanding the embryo physiology of Hizikia fusiformis(Harvey) Okamura will promote the development of artificial seedlings. In this study, H. fusiformis embryos were cultured under different environmental condit... Understanding the embryo physiology of Hizikia fusiformis(Harvey) Okamura will promote the development of artificial seedlings. In this study, H. fusiformis embryos were cultured under different environmental conditions, including different temperatures(15℃, 20℃, and 25℃), sunlight intensities(100%, 50%, and 25% of full solar radiation) and types of UVR(UV-A and UV-B). Then, we determined the lengths, maximal quantum yields( Fv/Fm), and survival rates of the embryos. The results showed that the embryos had the highest lengths, Fv/Fm values and survival percentages when cultured under a temperature of 20℃ and 25% sunlight intensity. The full level of solar radiation severely reduced the growth and survival ratios of the embryos. Hizikia embryos recovered within 2 h from the damage caused by short-term(30 min) high radiation(about 70% of full solar radiation) and UVR exposure. However, the viabilities of the embryos were significantly decreased after 4 h exposure to UVR. According to these results, we propose that culture conditions with indoor natural light and room temperature would be favorable for the growth, development and physiology of H izikia embryos. 展开更多
关键词 Hizikia fusiformis embryos GROWTH FV/FM temperature IRRADIANCE
下载PDF
Multimedia Production and Multi(media) Literacy in Gymnasiums
11
作者 Sreco Zakrajsek 《Computer Technology and Application》 2014年第1期57-64,共8页
The article displays the possibilities for introducing multimedia production based on computer science to gymnasiums (general secondary school programs), where students who usually continue their education at colleg... The article displays the possibilities for introducing multimedia production based on computer science to gymnasiums (general secondary school programs), where students who usually continue their education at college are educated. The purpose of the research was to prepare an assessment of the situation and recommendations to gymnasiums on how to improve the situation in this field and what options and opportunities appear for schools and the media environment in which they are active. Special attention was paid to the situation of activities (extracurricular activities and optional subjects) related to multimedia production and uses of ICT (information-communication technology). 展开更多
关键词 MULTIMEDIA multi(media) literacy gymnasium.
下载PDF
A Research on College English Network Teaching Resources Integration and Utilization in Big Data Era
12
《International English Education Research》 2015年第4期91-93,共3页
Based on the background of "big-data-blowout", this thesis is about research on college English network teaching resources integration and utilization confronted with the chance of "data value, the data assets and ... Based on the background of "big-data-blowout", this thesis is about research on college English network teaching resources integration and utilization confronted with the chance of "data value, the data assets and data say", analyzing the inevitable challenge of "competition, digital divide and data privacy", discussing that the researchers should hold big data thinking of "peaks of road & dances with wolves & be interdependent", emphasizing the improvement from college English teacher's modem education technical information literacy[1] and putting forward to resource integration and utilization strategy in the era of big data. 展开更多
关键词 Big Data College English Integration and Utilization STRATEGY
下载PDF
Complete Cytogenetic Insight of Tho-Tho Cattle
13
作者 Imusosang Longkumer Anupama Mukherjee +2 位作者 Sarat Chandra Yenisetti Sabyasachi Mukherjee Mooflmoofl Mech 《Journal of Agricultural Science and Technology(A)》 2015年第4期277-285,共9页
To investigate the cytogenetic parameters and characterise the chromosomal banding pattern of Tho-Tho cattle, a breed of indigenous cattle found in the Northeastern states of India were reared for meat purpose. Lympho... To investigate the cytogenetic parameters and characterise the chromosomal banding pattern of Tho-Tho cattle, a breed of indigenous cattle found in the Northeastern states of India were reared for meat purpose. Lymphocyte culture technique was carried out in 28 Tho-Tho cattle and culture was harvested for good metaphase spread. Good metaphase spreads were selected for analysis, such as relative length, centromeric index and arm ratio. Centromeric banding (C-banding) and reverse banding (R-banding) methods were done for detail and better understanding of the chromosome morphology. The chromosome number in Tho-Tho cattle was observed to be 2n = 60 in all complete metaphase. The mean relative length of the autosomal chromosomes varied from 5.48% :~ 0.107% to 1.79% + 0.105% in male and 5.31% :E 0.148% to 1.86% + 0.055% in female, respectively. The chromosome banding showed C-positive dark band heterochromatin in all the acrocentric autosome. However, in sex chromosome, the Y-chromosome showed negative C-band and also the X-chromosome did not show any stain at the centromeric region. The numbers of R-band pattern were observed to be 490 and 499 band in male and female, respectively. One of the X-chromosome showed light banding pattern, confirming the inactivation during the embryonic development in female. The fundamental chromosome number and banding pattern of Tho-Tho cattle did not vary from the other breed of the Bos indicus. However, it is necessary to start a cytogenetic screening of the Tho-Tho cattle and expand upon more number to be kept at different villages of Nagaland in order to identify animals with chromosomal abnormalities, so that it can be excluded from future breeding strategies for conservation of Tho-Tho genetic resource. 展开更多
关键词 Tho-Tho cattle KARYOTYPE cytogenetic analysis chromosome banding.
下载PDF
Ways of higher vocational college students' ideological and political education under the IT background
14
作者 Bingrong Wang 《International Journal of Technology Management》 2014年第3期82-84,共3页
Higher Vocational Education is showing unprecedented good momentum of development, for a large number of vocational technical talents will be the training object of society. As the number of students in higher vocatio... Higher Vocational Education is showing unprecedented good momentum of development, for a large number of vocational technical talents will be the training object of society. As the number of students in higher vocational colleges expands rapidly, their quality education and ability training have become more important. In conjunction with my teaching practice to engage in political work in colleges, from analyzing the problems of students ' ideological and political education, I elaborate approaches to strengthen students' ideological and political education. 展开更多
关键词 Vocational colleges the ideological and political education ISSUES METHODS
下载PDF
积极帮助社队发展渔业生产 全心全意为贫下中农服务
15
《水产科技情报》 1974年第3期18-18,共1页
伟大领袖毛主席教导我们:“为什么人的问题,是一个根本的问题,原则的问题”。
关键词 渔业生产 贫下中农 服务质量 养育技术
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部