نتایج جستجو برای: there were 11 native breed farms 222

تعداد نتایج: 4426549  

Journal: :Anais Da Academia Brasileira De Ciencias 2021

The shape of the secondary sexual characters is, traditionally, used to discriminate marine shrimps at species level. However, qualitative evaluation structures that are morphologically variable in taxonomy can favor misunderstandings and misidentifications. These possibilities taxonomic inaccuracies especially alarming when there is a need evaluate invasion introduced species. present study ge...

Journal: :Ecology letters 2007
Rachael Winfree Neal M Williams Jonathan Dushoff Claire Kremen

One of the values of biodiversity is that it may provide 'biological insurance' for services currently rendered by domesticated species or technology. We used crop pollination as a model system, and investigated whether the loss of a domesticated pollinator (the honey bee) could be compensated for by native, wild bee species. We measured pollination provided to watermelon crops at 23 farms in N...

پایان نامه :دانشگاه رازی - کرمانشاه - دانشکده ادبیات و علوم انسانی 1393

in recent years, there has been a growing interest among researchers to investigate the relationship betweenteacher self-efficacy and classroom behavior management, especially students misbehavior. therefore, this study aimed to comparatively investigate english and arabic teachers’ use of different behavior managementstrategies, their self-efficacy, and their success in an iranian context. th...

2015
T D O Ogola J Lagat I S Kosgey Thomas D.O. Ogola

Decent work concept is based on four pillars namely employment, employment rights,social dialogue, social security. The uptake of decent work practices in smallholder dairy farms is poorly understood. This paper explores the linkage between socioeconomic status of smallholder farmer and compliance to decent work standards. The study involved 123 farmers. Three index scales were constructed to m...

Journal: :Animal : an international journal of animal bioscience 2012
H Leruste E A M Bokkers L F M Heutinck M Wolthuis-Fillerup J T N van der Werf M Brscic G Cozzi B Engel C G van Reenen B J Lensink

The human-animal relationship is an important component of the welfare of farm animals and for this reason animal responsiveness tests to humans are included in on-farm welfare assessment schemes that provide indicators for this. However, apart from the behaviour of stockpersons towards their animals, other factors may also influence animals' reactivity to humans as observed through behavioural...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

abstract the current study sets out 1) to investigate the strategic needs of iranian efl learners in reading literary and non-literary texts; 2) to shed some light on the differences between reading literary and non-literary texts; and 3) to specify the differences in the interaction of participants with texts while reading two literary subgenres ( i.e., short story and literary essays). to ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده زبانهای خارجی 1391

the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...

Alireza Bahonar, Hamidreza Haddadzadeh Jamal Gharekhani,

Bovine neosporosis caused by the apicomplexan protozoan parasite N. caninum, was initially recognized in 1989 and is now reported as a leading infectious cause of reproductive failure in dairy cattle in world wide. The aim of this study was to determine the seroprevalence of N. caninum infection in industrial dairy cattle of Hamedan province (west of Iran) by ELISA method. Blo...

2003
J. P. Reganold

Biodynamic farming practices show promise in mitigating some of the adverse effects of conventional agriculture on the environment. Biodynamic farming is like organic farming in that no synthetic chemical fertilizers and pesticides are used. Unlike organic farmers, biodynamic farmers add eight specific preparations (made from cow manure, silica, and various plants) to enhance soil quality and p...

Journal: :The Biochemical journal 1996
M Mewies L C Packman F S Mathews N S Scrutton

In wild-type trimethylamine dehydrogenase, residue Arg-222 is positioned close to the isoalloxazine N1/C2 positions of the 6S-cysteinyl FMN. The positively charged guanidino group of Arg-222 is thought to stabilize negative charge as it develops at the N1 position of the flavin during flavinylation of the enzyme. Three mutant trimethylamine dehydrogenases were constructed to alter the nature of...

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