<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article  PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article"><front><journal-meta><journal-id journal-id-type="publisher-id">AS</journal-id><journal-title-group><journal-title>Agricultural Sciences</journal-title></journal-title-group><issn pub-type="epub">2156-8553</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/as.2014.57061</article-id><article-id pub-id-type="publisher-id">AS-46641</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>EARTH &amp; ENVIRONMENTAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Systems Dynamics of Sheep Farms and Driving Herds of Faces to the Vagaries of Weather: Cases from the Region of El Bayadh</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Mekhloufi</surname><given-names>Moulay Brahim</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Mahari</surname><given-names>Latifa</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Mekhloufi</surname><given-names>Fadila</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib></contrib-group><aff id="aff2"><addr-line>Faculty of Science University El Djilali Liabès of Sidi Bel Abbès, Sidi Bel Abbes, Algeria</addr-line></aff><aff id="aff1"><addr-line>Institute of Agronomy University of Mascara, Mascara, Alge-ria</addr-line></aff><author-notes><corresp id="cor1">* E-mail:<email>agro752002@msn.com(MMB)</email>;</corresp></author-notes><pub-date pub-type="epub"><day>09</day><month>06</month><year>2014</year></pub-date><volume>05</volume><issue>07</issue><fpage>583</fpage><lpage>587</lpage><history><date date-type="received"><day>3</day>	<month>March</month>	<year>2014</year></date><date date-type="rev-recd"><day>12</day>	<month>May</month>	<year>2014</year>	</date><date date-type="accepted"><day>29</day>	<month>May</month>	<year>2014</year></date></history><permissions><copyright-statement>&#169; Copyright  2014 by authors and Scientific Research Publishing Inc. </copyright-statement><copyright-year>2014</copyright-year><license><license-p>This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/</license-p></license></permissions><abstract><p>
	The cattlemen of the steppe are faced with climate risks whose consequences
are at the origin of one of the essential mechanisms of the degradation of resources
natural fodder, thus making uncertain the food of livestock. Thus, faces to the
changing socio-economic and climatic risks, the pastoral society has implemented
different adaptive strategies to ensure the reproduction of its operating systems.
The objective of this study is to analyze the patterns of the use of the space
of the pastoral area called El-Bayadh in order to show how the actors adopt and
adapt the techniques of production available in order to ensure the security of
the production of their exploitation in an environment particularly fragile, hostile
and vulnerable. It is therefore to take knowledge of the basic strategies implementation
and the responses provided by the livestock producers to protect themselves against
the consequences of a difficult climate in order to ensure the conduct of the food
needs of their animals and the reproduction of their operating system.
</p></abstract><kwd-group><kwd>Breeding System</kwd><kwd> Conduct of Sheep Farming</kwd><kwd> Climate</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>1. Introduction of the cattle herd local level; 8) The use of off-farm income.</title></sec><sec id="s2"><title>5. Conclusions</title><p>The steppe has had a strong development marked by an increase of the livestock and the rural population. The grazing resources have experienced a decrease due to the expansion of cultivation, the failures of agricultural policies and climate change (drought). This has made the pastoral farming much more fragile and vulnerable. In this context, the cattlemen have adopted a set of strategies (complementation, mobility, irrigation, etc.). The farmers with land appear better resist to the decapitalization. By contrast, the farmers without land are doomed to disappear.</p><p>This study has allowed to reveal that on the methodological level, the approach and the tools adopted have resulted in a better understanding of the strategies implemented in works by the cattlemen to meet the contingencies to maintain and reproduce their holdings. Thus, it appears essential to undertake a number of studies and researches tailored to the request. By order of priority, it will be necessary to consider: the creation of an Observatory Production System.</p><p>On the other hand, the need of the organization of the livestock industry is in cooperative association. These proposals can be achieved only by means of appropriate methodological and multidisciplinary teams.</p></sec></body><back><ref-list><title>References</title><ref id="scirp.46641-ref1"><label>1</label><mixed-citation publication-type="journal" xlink:type="simple"><name name-style="western"><surname>LE HOUEROU</surname><given-names> H.N. </given-names></name>,<etal>et al</etal>. (<year>2005</year>)<article-title>ENVIRONMENTAL PROBLEMS OF THE LIVESTOCK DEVELOPMENT IN DRY REGION</article-title><source> RESEARCH ARTICLE DROUGHT</source><volume> 16</volume>,<fpage> 89</fpage>-<lpage>96</lpage>.<pub-id pub-id-type="doi"></pub-id></mixed-citation></ref><ref id="scirp.46641-ref2"><label>2</label><mixed-citation publication-type="other" xlink:type="simple">KANOUN, M., KANOUN, A. AND ZIKI, B. (2006) THE PRODUCTS OF ANIMAL HUSBANDRY SHEEP STEPPE. THE CASE OF DJELFA LAMBS. IN: OLAIZOLA, A., BOUTONNET, J.P. AND BERNUÉS, A., EDS., MEDITERRANEAN LIVESTOCK PRODUCTION: UNCERTAINTIES AND OPPORTUNITIES. CIHEAM/CITA/CITA, ZARAGOZA, 211-217.</mixed-citation></ref><ref id="scirp.46641-ref3"><label>3</label><mixed-citation publication-type="other" xlink:type="simple">KANOUN, M. (1996) INCOME STRUCTURE OF AGRO PASTORS AND EFFECT OF PRODUCTION TECHNIQUES ON THE FORMATION OF INCOME COMMON CASE OF DELDOUL AND EL GUEDID, WILAYA OF DJELFA. THESIS OF MAGISTER, INA, ALGIERS, 124 P.</mixed-citation></ref><ref id="scirp.46641-ref4"><label>4</label><mixed-citation publication-type="other" xlink:type="simple">BOURBOUZE, A. (2002) THE LONGTIME OF DEVELOPMENT: FEMALE PATIENTS TRANSFORMATION OF THE SYSTEM OF FARMS IN THE MAGHREB. IN: DUFUMIER, M., ED., AN AGRONOMIST IN HIS CENTURY, NEWS OF RENE DUMONT, KHATHALA, PARIS, 95-107.</mixed-citation></ref><ref id="scirp.46641-ref5"><label>5</label><mixed-citation publication-type="other" xlink:type="simple">POIVEY, J.P. (1988) SIMPLE METHODS OF CALCULATED VALUES OF GENETIC FEMALE TAKING ACCOUNT OF ALL THE RELATIVES. 18, 321-332.</mixed-citation></ref></ref-list></back></article>