农学 >>> 畜牧学 >>> 家畜育种学 家畜繁殖学 动物营养学 饲料学 家畜饲养管理学 特种经济动物饲养学 家畜行为学 家畜卫生学 草原学 畜产品贮藏与加工 畜牧机械化 养禽学 养蜂学 养蚕学 畜牧经济学 畜牧学其他学科
搜索结果: 1-15 共查到知识库 畜牧学 improve相关记录19条 . 查询时间(0.031 秒)
The objective of this research was to estimate genetic correlations between number of piglets born alive in the first parity (NBA1), litter birth weight in the first parity (LTBW1), number of piglets ...
The aim of this study was to evaluate the effects of administration of oxytocin, in combination with dinoprost or ergometrin, after parturition on the occurrence of clinical endometritis and subsequ...
Heparin binding proteins (HBPs) are produced by accessory glands. These are secreted into the seminal fluid, bind to the spermatozoa at the time of ejaculation, favour capacitation, acrosome reaction,...
The efficiency of embryo recovery in a superovulatory treatment was studied by perfusing the oviduct or the uterine horn in 3.5 and 7 days after sponge withdrawal, respectively. Eighty-four and sevent...
The present study evaluated the effect of controlled ryegrass-white clover herbage availability from day 128 until day 142 of pregnancy in comparison to unrestricted availability, on the performance o...
The objective of this paper was to review recent studies on nutrient synchrony and the effects of synchronization of energy and N supply in the rumen on nitrogen utilization and animal performance. Th...
The United Nations Convention on Biological Diversity defines biotechnology as ??Any technological application that uses biological systems, dead organisms, or derivatives thereof, to make or modify p...
This paper gives an overview of the availability, nutritive quality, and possible strategies to improve the utilization of rice straw as a feed ingredient for ruminants. Approximately 80% of the rice ...
Maize and soybean meal are the most common ingredients in diets for monogastric animals. Although maize is low in anti-nutritive factors, soybean meal often contains significant levels of soluble gala...
This study was performed to investigate whether postnatal administration with aged garlic extract (AGE) and allicin infl uences performance and systemic development of piglets exposed to early weaning...
Beef producers are trying to produce not only better quality but also greater quantity of beef in order to meet the preferences of some consumers at a lower cost. This can be accomplished if we unders...
The effect of the addition of exogenous fibrolytic enzymes (mainly xylanase and cellulase activities, 15 ml/15 kg of fresh forage), on intake, total tract digestibility and nylon bag degradability of ...
English crossbred steers (n = 32) and heifers (n = 32) were fed a corn- based finishing diet and supplemented with 2% Ascophyllum nodosum on a DM basis to for various feeding stages of the 119 d feedi...
The objective of this study was to evaluate the effect of electric fan installation for milk production improvement of dairy cattle in Thailand. The study was conducted using 2 small-holder dairy farm...
Dehulling improves markedly the feed value of oat (Avena sativa L.), but good storability of groat mass is required when large quantities of oat are dehulled at any one time. A laboratory model of an ...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...