نوع مقاله : مقاله مروری
نویسندگان
1 دانشجوی کارشناسی ارشد ژنتیک و اصلاح نژاد دام، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، البرز، ایران
2 دانشجوی کارشناسی مهندسی طبیعت، گروه احیاء مناطق خشک و کوهستانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، البرز، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The livestock life of the country depends on rangelands, and what justifies sheep farming in Iran now is the use of rangelands, which are used free of charge or at low cost. Sheep are usually grazed in the convenient seasons, although the choice of grazing time at any point depends on climatic conditions, altitude, soil type, and finally the type of plant. In areas where there are rich pastures, sheep breeding is also productive and meat and dairy breeds can be bred, but in poor pasture conditions, it is more appropriate to breed low-expected native and small breeds. Prolonged grazing causes a significant change in plant composition and leads to the cover of undesirable plants. Rangelands are God-given national assets and must be used properly to raise livestock. One of the principles that is considered in this regard is to pay attention to the capacity of the rangeland and to observe the time of entry and exit of livestock from the rangeland.
کلیدواژهها [English]