Standard breed-White Locke Chicken
White Locke Chicken (WhitePlymouthRock) originated from the United States, originally belongs to dual-purpose type, and now it is mainly used for broiler matching maternal line and Cornish paternal line to produce broilers. It is characterized by a single crown, red earlobe, yellow beak, skin and shank and claws, and a large and plump body. The early growth is fast, the chest and leg muscles are well developed, the feathers are white, the carcass is beautiful, and retain a certain level of egg production. Adult standard body weight rooster is 4-4.5kg, hen is 3-3.5kg, egg production is 150-160. most egg lines can reach more than 200. egg weight is about 60g. It is recognized as the mother line of white-feathered broiler.
- Prev
Porcine nephropathy
1. The pathogen of the disease is caused by the dentate crown tail nematode parasitic in or around the pig kidney fat and ureteral wall and so on. Pig kidney worm is a thick hard nematode shaped like a matchstick, dark red and well-developed oral sacs. The length of male worm is 20-30 mm and that of female worm is 30-45 mm. The eggs are excreted with the urine and develop into invasive larvae after 3-5 days in a suitable environment, invade the pig body through the mouth or skin, migrate to the liver with the blood flow, further migrate to the kidney and its surrounding tissues, and gradually mature. From the time the larva invades the pig to the time it develops
- Next
Porcine immunization program
Pig farms should always implement the policy that prevention is more important than control, and establish a strict epidemic prevention system. In order to ensure the good benefit of raising pigs, on the basis of regular disinfection of pig farms and pens, the following immunization procedures must be done: first, the immune reserve pigs of reserve pigs should be vaccinated one month before breeding, and the sows should be vaccinated as follows: 1. Classical swine fever vaccine, 4 doses per head; 2. The combined vaccine of porcine erysipelas and porcine pneumonitis, 1 dose for each head; 3. Porcine Japanese encephalitis vaccine, 1 dose per head; 4. Porcine parvovirus vaccine, 1 dose per head
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