Extensive farming or extensive agriculture (as opposed to intensive farming ) is an agricultural production system that uses small inputs of labour , fertilizers, and capital , relative to the land area being farmed.
12-648: The Churra Galega Bragançana Branca is a Portuguese breed of domestic sheep . It originates in, and is raised in, the Terra Fria Transmontana [ pt ] in the District of Bragança in north-eastern Portugal, on the border with the Spanish autonomous community of Galicia . It is one of four churra sheep breeds in the district of Bragança, the others being the Churra da Terra Quente ,
24-490: A breeding stock of 15 329 ewes and 548 rams in 157 flocks; its conservation status was listed as "not at risk". The breed society also maintains the herd-book for the Churra Galega Bragançana Preta , a black-woolled variant, which was officially recognised as a separate breed in 2015. The Churra Galega Bragancana Branca is white or cream-coloured, with black patches round the eyes and round
36-572: Is distributed principally in Bragança and in the concelho of Vinhais , particularly on the massifs of the Serra da Coroa , the Serra de Montesinho [ pt ] and the Serra da Nogueira [ pt ] within the Parque Natural de Montesinho , and so also within the larger Reserva da Biosfera Transfronteiriça Meseta Ibérica [ pt ] . Some are reared also in
48-455: Is not available. The nature of extensive farming means it requires less rainfall than intensive farming. The farm is usually large in comparison with the numbers working and money spent on it. In 1957, most parts of Western Australia had pastures so poor that only one sheep to the square mile could be supported. Just as the demand has led to the basic division of cropping and pastoral activities, these areas can also be subdivided depending on
60-707: Is some 120–150 mm , rather shorter than in most Churra sheep; fibres have a diameter of 30–37 μ . List of sheep breeds This is a list of breeds of domestic sheep . Domestic sheep ( Ovis aries ) are partially derived from mouflon ( Ovis gmelini ) stock, and have diverged sufficiently to be considered a different species. Some sheep breeds have a hair coat and are known as haired sheep. Sorted alphabetically. Extensive farming Extensive farming most commonly means raising sheep and cattle in areas with low agricultural productivity, but includes large-scale growing of wheat , barley , cooking oils and other grain crops in areas like
72-499: The Churra Galega Bragançana Preta and the Churra Galega Mirandesa . The Churra Galega Bragançana Branca is a traditional rural breed of north-eastern Portugal, belonging to the widespread churra or coarse-wool Iberian type. It originates in the mountainous Terra Fria Transmontana [ pt ] , the northern part of the District of Bragança , in the historical-geographical region of Trás-os-Montes . It
84-615: The Murray-Darling Basin in Australia . Here, owing to the extreme age and poverty of the soils, yields per hectare are very low, but the flat terrain and very large farm sizes mean yields per unit of labour are high. Nomadic herding is an extreme example of extensive farming, where herders move their animals to use feed from occasional rainfalls. Extensive farming is found in the mid-latitude sections of most continents, as well as in desert regions where water for cropping
96-514: The district, or approxiamtely 200 000 ; in 1986 the total population numbered over 155 000 . By 1990 it had fallen to approximately 5000 head, and the breed was thought to be at risk of extinction . Herd-book registration began in 1991, and a breed society , the Associação Nacional de Criadores de Ovinos da Raça Churra Galega Bragançana , was established. In 2024 the total number was estimated to be 30 062 –33 434 head, with
108-469: The muzzle; black markings may also appear on the legs. The face, the front of the neck, the legs and the belly are without wool. Rams usually have large horns of spiral shape, ewes are normally polled . The sheep were traditionally kept for meat and for wool and for their manure , which was of considerable economic importance and was one of the principal reasons for which sheep were kept in the region. The flocks were managed extensively , grazing for much of
120-547: The neighbouring concelhos of Chaves , Macedo de Cavaleiros , Mirandela , Valpaços and Vimioso . The Galego or Bragançano was first described as a distinct population in Trás-os-Montes in 1941 by Francisco Felgueiras Júnior, who was superintendent of animal husbandry in the area. The sheep were formerly more numerous: in 1941 the Galego or Bragançano type constituted some 80% of a total of about 248 000 sheep in
132-409: The region's rainfall, vegetation type and agricultural activity within the area and the many other parentheses related to this data. Extensive farming has a number of advantages over intensive farming: Extensive farming can have the following problems: Extensive farming was once thought to produce more methane and nitrous oxide per kg of milk than intensive farming. One study estimated that
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#1732801764630144-609: The year on fallow agricultural land and so fertilising it; in the summer months they spent the hot hours of the day in shady woodland, coming out at night to graze. In the twenty-first century they are kept mainly for meat production. Lamb reared under certain conditions and slaughtered at 3–4 months old, at a weight of some 10–12 kg , may be marketed as Cordeiro Bragançano [ pt ] , which has European Denominação de Origem Protegida ('protected designation of origin') status. Ram fleeces weigh some 3.5–4.5 kg , ewe fleeces roughly 1.5–2.5 kg . The staple length
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