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This experiment was conducted to assess the welfare and productivity of gestating gilts in groups with the electronic sow feeding (ESF) system compared to conventional stalls. A total of 83 gilts (Yor...
The effect of feeding system (calves reared under free-range conditions supplemented with concentrate vs. calves fed on concentrate and cereal straw in confinement) during finishing period on growth p...
A basal diet (0.8 g/kg dNa) was formulated in which each of the two sources (NaHCO3 and Na2SO4) were supplemented in such a way to attain four levels (1.7, 2.6, 3.5, and 4.4 g/kg) of total dNa, respec...
Requirements of dietary chloride (dCl) and chloride salts were determined by using 4×2 factorial arrangement under four phase feeding program. Four levels (0.31, 0.45, 0.59 and 0.73%) and two sources ...
基于气力输送原理,设计了一套以S7-200可编程序控制器(PLC)为控制器,触摸屏为人机界面的自动投饵系统。论述了投饵设备的组成及工作原理, 控制系统的设计以及软件实现。通过PLC系统对下料速度、投饵时间、停饵时间等参数进行设定,实现自动投饵控制。试验结果表明,该系统达到设计要求,输送管长320m时投饵量可达1.1t/h,定量精度为±1.5%。
A simulation model was developed to predict growth rate and days required to reach target mating weight of dairy cattle heifers in a stall-feeding system. Input parameters for the model are gross ener...
Two separate animal trials were conducted to evaluate the coincidence of dry matter intake (DMI) and average daily gain (ADG) predicted by the Cornell Net Carbohydrate and Protein System (CNCPS) and o...
精量饲喂系统的核心技术是奶牛个体识别技术。系统采用了非接触式的无线射频识别(RFID)技术,奶牛佩带符合ISO11785标准的电子标签。采食开始前,系统核对奶牛信息后按照饲喂要求进行自动投料。系统各测量数据将通过以ZigBee为核心建立起来的无线网络传输到主控计算机,同时主控计算机将奶牛饲喂规则的相关控制指令也通过无线网络传送到饲喂装置,控制饲喂装置工作。系统预留相关扩展接口方便后续升级使用。
This study was carried out to determine the effects of free choice feeding of starter feed and whole cereals on the growth of turkey poults. Two hundred-seventy poults (7-d old) were divided into 3 tr...
An experiment was conducted to examine the effect of a high environmental temperature on the performance, conformation, and carcass characteristics of pigs and the influence of diet. Thirty-six three-...

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