نتایج جستجو برای: sheep production system

تعداد نتایج: 2769216  

The number of lambs sold per ewe mated in the breeding flock has a considerable impact on sheep operation profitability. This depends primarily on fertility, prolificacy (# of lambs), and lamb survival, mothering ability, milk production of the ewe and lamb growth rate. Optimal reproduction does vary by environment and management system – some sheep operations don’t want a lambing rate over 200...

1999
Tjaart W. Schillhorn van Veen

This paper briefly narrates the historical and present challenges facing sheep herders in the Kyrgyz Republic. Originally these were nomads employing an horizontal and vertical migration system, but Russian conquest and settlement forced this to change to a system of transhumance. The latter, albeit structured in a collective system, was more or less maintained throughout the communist period. ...

The number of lambs sold per ewe mated in the breeding flock has a considerable impact on sheep operation profitability. This depends primarily on fertility, prolificacy (# of lambs), and lamb survival, mothering ability, milk production of the ewe and lamb growth rate. Optimal reproduction does vary by environment and management system – some sheep operations don’t want a lambing rate over 200...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

در این مطالعه، عملکرد دو سیستم اکسیداسیون شیمیایی پیشرفته و یک سیستم بیولوژیکی برای حذف آموکسی سیلین در فاضلاب های سنتزیدر غلظت های مشابه با موارد صنعتی مورد بررسی قرار گرفته شدند. مطالعه انجام شده دارای سه بخش متفاوت اکسیداسیون با ازن و اشعه uv، اکسیداسیون با استفاده از نانو فتوکاتالیست tio2 و استفاده از بیوراکتور هوازی لجن فعال با جداکننده های فیزیکی می باشد. در هر بخش، متغیر های متفاوتی متنا...

B. Tamir G. Abebe K. Zaralis W. Tsega,

This study was initiated to characterize urban and peri-urban sheep production systems and their economic importance in and around the towns of Debre Berhan and Dessie, Ethiopia. The study was undertaken using group discussions, structured questionnaire and personal observations. In both locations the majority of sheep producers were male household heads and predominantly traders in urban and f...

Journal: :علوم دامی ایران 0
محمدعلی طالبی سید رضا میرائی آشتیانی محمد مرادی شهربابک اردشیر نجاتی جوارمی

in this study, production, reproduction, managerial, and economic parameters obtained from data recorded for lori-bakhtiari flock of sheep (500 heads of breeding ewe) stationed at the sheep's breeding station, were employed to determine the relative economic values of and breeding objectives for an annual cycle of production, in village system in this breed of sheep. economic value for a t...

Journal: :international journal of advanced biological and biomedical research 2014
nematollah dayyani

the number of lambs sold per ewe mated in the breeding flock has a considerable impact on sheep operation profitability. this depends primarily on fertility, prolificacy (# of lambs), and lamb survival, mothering ability, milk production of the ewe and lamb growth rate. optimal reproduction does vary by environment and management system – some sheep operations don’t want a lambing rate over 200...

Journal: :Veterinary immunology and immunopathology 2010
S I Sebatjane A Pretorius J Liebenberg H Steyn M Van Kleef

Low molecular weight (LMW) proteins of E. ruminantium can induce proliferation of immune peripheral blood mononuclear cells (PBMCs) and the production of interferon-gamma (IFN-gamma) by CD4+-enriched T-cells. In this study, a reverse vaccinology approach was applied to identify additional vaccine candidates focusing on genes that encode LMW proteins smaller than 20 kDa. Five open reading frames...

2013
Luciana Afonso Guimarães Rodrigo Alves Bezerra Daniele de Santana Rocha George Rêgo Albuquerque

In this study, we aimed to determine the prevalence of Toxoplasma gondii antibodies and identify risk factors associated with this infection in sheep from the southern region of Bahia state. Between February and December 2010, 795 sheep from 31 farms located in nine municipalities were tested. We found seroprevalence of 30.2% (240/795), with titers of 64 (38.3%), 256 (34.2%), 1,024 (18.3%), and...

2007
Peter Condie Kym MacRae Philip Boyce

Food Science Australia has been developing sensing systems that are suitable for use in automating tasks commonly seen in Australian meat processing plants. This paper discusses the process of automating the sheep brisket cutting task. The prototype automated system was defined and developed and a standard manual brisket cutter was adapted to an ABB industrial robot for demonstration to industr...

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