In the global region, how many kinds of goats, looking at some of the data, have not looked for accurate data, but at this stage, there are as many as ten more famous domestic and foreign meat goat breeds. Detailed boer goats, Nanjiang yellow sheep, horsehead goats, Sichuan hemp sheep, Guizhou province white goats, Leizhou Nubia black goats, Huanghuai white goats, Longlin white goats and so on. Below I will briefly introduce the approximate litter rate of these sheep and the normal range of goat littering, and then there is the main direction of meat nubian goat breeding at this stage.
Boer goat is a world-recognized meat goat breed, has the reputation of the originator of meat sheep, has been introduced in the Netherlands, Australia, France, the United States, New Zealand and many parts of Africa. Since China introduced the first batch of Boer goats from South Africa in 1996, the use of pure breeding and expansion of herds and other measures has gradually expanded to all provinces in China, showing universal suitability, excellent meat characteristics and significant mixed hybridization advantages and high economic value.
Nubian Nubian black goats are a type of white goat with meat, milk and skin, native to Sudan, Egypt and neighboring regions. The Nubian goats fed in Europe and the United States are mixed and cultivated by mixing and breeding native female goats with Nubian male goats imported from Africa. The Nubian goats imported from China are mostly imported from the United States, Australia, the United States and other countries.
Nubian goats have an aristocratic manner, rams and ewes have whiskers or horns, large body, clear facial contours, beautiful appearance, nasal bridge bone protrusions, is a common Roman nasal smelting. The long and wide earlobes are close to the head and hang down; the neck is long, the body is shorter and cylindrical, and the chest muscles are more plump. The hairs are shorter and more heterogeneous, with a pure black body color, but more red, dark red, and black with dark spots.
At this stage, the main direction of meat white goat breeding is the transformation of the direction of mixed hybrid sheep, with Boer goat as the father, and the local species of white goat ewe as the mother to carry out the trend of hybrid hybridization is significant, so that the mixed hybrid sheep produced by the child inherits the different advantages of the parent generation, and is significantly stronger than the mother goat breed in terms of growth speed and slow growth, and significantly stronger than the Boer goat in terms of breeding characteristics. Farmers in many areas are currently selecting seedling ewes from the mixed hybrid account, in order to cultivate a hybrid hybrid goat breed with a stronger growth rate, take our North China Plain, the current breeders are basically all using Boer goats as the father, the local Huanghuai white goat as the mother to carry out mixed hybridization, and then select the mixed breed hybrid sheep as the mother, the current local purebred Huanghuai white goats are now very few, in addition to the requirements of meat production rate and growth speed, the fertility is significantly reduced compared to the mother white goat, Specifically, it is manifested in the number of births.
And the author learned in detail that the mixed hybridization of The Boer goat and the Nubian black goat is used to form a new generation of hybrid hybridization, and then the new generation of hybrid hybrid mother and the Boer goat are mixed and hybridized. Mixed hybrid sheep weigh 25 to 30 kg at 4 months of age, which is equivalent to the adult weight of native sheep and twice that of native sheep of the same age. Usually, the littering rate of goats after hybridization will be correspondingly improved, and one litter will be born in 3-4 litters. Farmers should not blindly pursue the number of litters, because it is usually more appropriate for ewes to carry 3 litters, and if there are more artificial feedings, it will also increase the cost of breeding.
The author suggests that farmers should also pay attention to insect removal. It is best to remove insects in the spring and autumn two seasons for every 2 months to remove insects 1 time, in detail which insect repellent, the author recommends or go to the local veterinarian to get medicine, symptomatic treatment is better, in addition, the author feels that the environmental hygiene of the sheep shed is also very important, must clean the sheep shed every day, on time with disinfectant powder, poison killing on the shed and equipment to carry out sanitary disinfection, so as to prevent the occurrence of parasites and other diseases.