نتایج جستجو برای: livestock

تعداد نتایج: 22194  

2017
Claire Bedelian Joseph O. Ogutu

Pastoralists in the wildlife-rich East African rangelands use diversification into conservation and tourism as a strategy to supplement livestock-based livelihoods and to spread risk. Tourism incomes are an important alternative source during drought, when livestock incomes decline. However, tourism may also reduce access to rangeland resources, and an abundant wildlife may destroy crops and in...

2011
Guilherme J. M. Rosa

Frontiers in Livestock Genomics (FLG) provides a venue for investigators to publish basic, applied, and methodological research toward a better understanding of the genetic mechanisms underlying the expression of complex phenotypes in livestock, the effects of domestication and evolutionary processes on genome variability, as well as innovative strategies for the genetic improvement of economic...

2006
H. Guo Z. Yu

Abstract This paper reviewed the studies of livestock odour dispersion modeling including odor sources, odor emission rate, odor characteristics and measurements, odor dispersion modeling methods, and methods and results of adapting industrial air dispersion models for livestock odor dispersion simulations. The Gaussian plume models, Puff models, Fluctuating models and other models that have be...

2010
Matthew Vernon Matt Keeling Graham Medley

The authors are scientists working on the epidemiology of livestock diseases such as foot and mouth disease and bovine tuberculosis. The authors are also part of Governance of Livestock Disease project, funded by the Rural Economy and Land-Use (RELU) programme, and are responding on behalf of the project. Livestock movement data, provided latterly via RADAR, have proved very valuable in enhanci...

2004
P. EDWARDS

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2005
Xuehua Peng Mary A. Marchant Xiang Dong Qin Jun Zhuang

This research surveyed over 784 Chinese consumers in Shanghai and Nanjing in 2001 and 2002, evaluating their preferences for livestock product attributes using ordered-probit models and factor analyses. Empirical results confirm the heterogeneity of Chinese livestock retail markets and suggest that livestock distributors should focus on Chinese female consumers and young consumers considering c...

2016
Mar Sobral María Losada Tania Veiga Javier Guitián José Guitián Pablo Guitián

Angiosperms diversification was primarily driven by pollinator agents, but non-pollinator agents also promoted floral evolution. Gentiana lutea shows pollinator driven flower color variation in NW Spain. We test whether insect herbivores and livestock, which frequently feed in G.lutea, play a role in G. lutea flower color variation, by answering the following questions: (i) Do insect herbivores...

2016
Mazbahul Ahamad Mazbahul G. Ahamad Elizabeth VanWormer

Little is known about the factors affecting pastoralists' livestock vaccination decisions. In this thesis, we use a novel survey-based dataset on pastoralists living in the Ruaha landscape in Tanzania, and employ several econometric approaches to identify the factors affecting pastoralists' decision-making process about livestock vaccination when disease occurrence and severity, vaccination and...

2015
Rita Tinoco Torres Nicole Silva Gonçalo Brotas Carlos Fonseca Benjamin Lee Allen

Livestock predation by large carnivores and their persecution by local communities are major conservation concerns. In order to prevent speculations and reduce conflicts, it is crucial to get detailed and accurate data on predators' dietary ecology, which is particularly important in human dominated landscapes where livestock densities are high. This is the case of the endangered Iberian wolf i...

2010

a substantial global increase in the demand for food of animal origin, while also aggravating the competition between crops and livestock (increasing cropping areas and reducing rangelands). The livestock revolution 1 is stretching the capacity of existing production, but it is also exacerbating environmental problems. Therefore, while it is necessary to satisfy consumer demand, improve nutriti...

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