نتایج جستجو برای: livestock number

تعداد نتایج: 1187908  

2003
Lyubov A. Kurkalova Helen H. Jensen

A representative sample of 49 state and collective farms in Ukraine provides data in physical units on livestock and crop production and input use for 1989-92. The changes in production efficiency for beef, pork, dairy, winter wheat, grain, and potato production, investigated using stochastic frontier methods, show declining technical efficiency in livestock production and especially low margin...

Journal: :مرتع و آبخیزداری 0
محسن سرشاد قهفرخی دانش آموخته کارشناسی ارشد مرتعداری دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، ایران سید علیرضا موسوی استادیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، ایران سعید سلطانی دانشیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، ایران سعید پورمنافی استادیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، ایران

natural resources are valuable capitals for all nations. rangelands as the most extensive natural ecosystems in iran provide numerous services, including fodder production and red meat supply, soil conservation and water regulation. although uncontrolled exploitation of these resources has imposed much pressure and caused many losses within the ecosystems. impacts of overutilization of nomadic ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

2012

 Farmers will have to increase production levels to provide food for a growing population, while meeting the current and future welfare and environmental targets and legislation.  There has been a steady decline in the number of farms, farmers and livestock in the UK, with an increase in the average farm size.  Proposed UK super farms are smaller in scale compared to some of the world’s larg...

2014
Cristina Lorca-Oró Jorge Ramón López-Olvera Francisco Ruiz-Fons Pelayo Acevedo Ignacio García-Bocanegra Álvaro Oleaga Christian Gortázar Joan Pujols

Wild and domestic ruminants are susceptible to Bluetongue virus (BTV) infection. Three BTV serotypes (BTV-4, BTV-1 and BTV-8) have been detected in Spain in the last decade. Even though control strategies have been applied to livestock, BTV circulation has been frequently detected in wild ruminant populations in Spain. The aim of the present study is to assess the role for wild ruminants in mai...

ژورنال: مرتع 2022

 Background and objectives: Extra livestock than grazing capacity is one of the main effective factors on rangeland degradation. Most of the country's pastures have Extra livestock than grazing capacity, and from the past until now, the policy of dealing extra livestock by using legal punishments has not been able to completely solve this problem. Lack of attention to grazing capacity has led t...

2007
Nawaf Abu-Khalaf Jens Jørgen Lønsmann Iversen

An electronic tongue comprising different numbers of electrodes was able to classify test mixtures of key odorants characteristic of bioscrubbers of livestock buildings (n-butyrate, iso-valerate, phenolate, p-cresolate, skatole and ammonium). The classification of model solutions indicates that the electronic tongue has a promising potential as an online sensor for characterization of odorants ...

Journal: :Veterinary world 2015
Korrapati Kotinagu T Mohanamba L Rathna Kumari

AIM Detection of aflatoxin B1 in Livestock compound Feed and feed ingredients by high-performance thin layer chromatography (HPTLC). MATERIALS AND METHODS Chromatography was performed on HPTLC silica gel 60 F 254, aluminum sheets by CAMAG automatic TLC sampler 4, with mobile phase condition chloroform:acetone:water (28:4:0.06). Extraction of aflatoxin B1 from samples was done as per AOAC meth...

Journal: :Animal : an international journal of animal bioscience 2013
J Ryschawy N Choisis J P Choisis A Gibon

Mixed crop-livestock systems, combining livestock and cash crops at farm level, are considered to be suitable for sustainable intensification of agriculture. Ensuring the survival of mixed crop-livestock systems is a challenge for European agriculture: the number of European mixed crop-livestock farms has been decreasing since 1970. Analysis of farming system dynamics may elucidate past changes...

Journal: :Zoonoses and public health 2010
J M Sargeant A M O'Connor I A Gardner J S Dickson M E Torrence I R Dohoo S L Lefebvre P S Morley A Ramirez K Snedeker

Concerns about the completeness and accuracy of reporting of randomized clinical trials (RCTs) and the impact of poor reporting on decision-making have been documented in the medical field over the past several decades. Experience from RCTs in human medicine would suggest that failure to report critical trial features can be associated with biased estimated effect measures, and there is evidenc...

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