In the first half of the 19th century, in the British territories first came to light a large breed of black pigs. Withdrawal of the breed occurred by complex reproductive crossing. While representatives of the English long-eared pig, black and Chinese Neapolitan breed. C-19 th century, much has changed, and if many of the rocks sometimes centuries are in place, do not become popular or even disappear, then we have provided a variety of vice versa. To date, a large species of black pupils expanded the territories of Ukraine, Belarus, Russia, Germany, Great Britain. If we consider the overall promotion of animals, the most common pets in the Central, Central Black Earth and Volga regions of the world. Large Black pigs not only contain the economy as a productive breed and used for focused work. For tribal representatives work selected varieties that have a strong constitution and a large, wide and fairly long body with a well-developed chest and harmonious debarking parts.
For the inherent characteristics of productivity, has introduced a kind of universal or universal trend.
Consider the exterior characteristics of a large black pig breed. So, pupils have: large trunk sizes; harmonious and proportional physique; housing pets long enough; medium size, rather short head; at the head of the neatly placed pretty long ears that falls over the eye area; nosecone smoothly into the neck, neck relief, powerful and is not very long; chest is broad and has often been compared with the shape of the breast barrels because it is the same convex; the dorsal part of the broad, straight and slightly elongated; lumbar region wide; well-developed, rounded debarking part that looks to contrast harmoniously with the hock; legs raised, strong, and straight terminations and strong hooves; part of the tank is short enough. Significant deficiencies in representatives of this species is the presence of wrinkles on the skin, as well as the back, which is often slack.
Adult male representative of the genus has about 250-400 kg of live weight, and a representative of mature feminine in turn weighs about 200-300 kg. An interesting fact is, the presence of meat in a carcass. It is known that in a representative large black pigs of about 51,0-52,5% meat product, and greasy – 40,0-41,5%. fertility statistics are also at a high level. At once brings the sow from 10 to 12 piglets. Mothers-pigs are well developed maternal quality, which is why their baby is 55-70 kg, rarely found even higher. Development of live weight up to a half-year of age up to 90-110 kg. Average statistical required amount of feed units per kilogram of body weight gain of about 3.5-5.5.
As already mentioned, not represented variant used for productive purposes only, and studies for improvement and genetic bases. Thus, it became popular to crossbreeding with large black pigs of large white breed (or instead use a variety of large white crosses). This combination has shown good results. The process of reproductive crossing led to a new seed, which has a much higher safety of the young. New Generation sows gained 0.5-1.0 longer being born calves weaned pigs live weight of about one kilogram. From maternal feeding kids weaned at one to two weeks earlier than the usual time frame of breed, and average daily gain of live weight of pigs increased by 4-7%.
Introduced species of large black pig has many advantages, which include their strong relief and the constitution, harmonic and proportional body. pets productivity is more refined in terms of multiple pregnancy (10-12 piglets per shackles). Meat and greasy product is popular gentle and mild taste. There are, of course, and minor cons. Pets are prone to obesity and often they appear in the folds of the skin and looseness, so you need to carefully monitor their diet. Parts of all these disadvantages appear on their own, regardless of the supply, as folding and sagging is one of their exterior signs of pets.