-
How do the immunization methods differ for different types of pigs?
Immunization of replacement gilts. Replacement gilts should be vaccinated with the following vaccines 1 month before mating, and sows after weaning should be vaccinated as follows: (1) Swine fever vaccine, 4 doses per head. (2) Swine erysipelas and swine pasteurellosis combined vaccine, 1 dose per head. (3) Swine Japanese encephalitis vaccine, 1 dose per head. (4) Porcine parvovirus vaccine, 1 dose per head (the inactivated vaccine can be given twice, with an interval of 15 days). (5) Swine pseudorabies vaccine, used according to the instructions. Immunization of farrowing pigs. Farrowing sows should be vaccinated with the following vaccines 15-40 days before farrowing: (1) Piglet Escherichia coli quadruple vaccine (K88, K99, 9
-
What varieties and types of Polygonatum are there? Let us introduce you to the common ones
According to their different characteristics, commercial Polygonatum is divided into three categories: "chicken-head Polygonatum," "ginger-shaped Polygonatum," and "large Polygonatum." Chicken-head Polygonatum is irregularly conical, with a large head and a thin tail, resembling a chicken's head. It is 3-10 cm long and 0.5-1.5 cm in diameter. The surface is yellowish-white to yellowish-brown, semi-transparent, with fine wrinkles over the whole body and slightly raised, wavy rings. The scar of the aboveground stem is disc-shaped, often with a concave center, and the root scars are mostly dot-like protrusions. The cut surface is light brown, slightly horny, and has numerous yellowish-white dot-like veins (vascular bundles). The odor is slight, the taste is sweet, and it is sticky,
-
What are microecological preparations, what types are there, and what are their application scopes?
Applications of microecological preparations
-
What types of holly planting techniques are there?
When it comes to holly, it is relatively common and can be found in many places, having made many contributions to our country's landscaping. What are the planting methods for holly? What classifications are there? Introduction to holly: Holly is also called northern mistletoe, mistletoe, frozen holly, parasitic seed, etc.! It can be seen all over our country
-
These types of people in rural areas all used to make big money, but some of them are no longer riding high today - what a sigh
In the past, these types of people in rural areas all made big money, but some of them are no longer riding high now - what a sigh
-
In the next ten years, rural wealth will depend on these three types of farmers
These three types of people may be the farmers who lead rural areas to prosperity in the next ten years!
-
Six types of people born with a windfall destiny, most likely to get rich overnight
These six types of people are born with a windfall destiny, most likely to get rich overnight!
-
Sesame production keeps rising steadily, with 5 types of intelligent equipment lending a hand
5 types of intelligent equipment help sesame production "rise steadily"
-
Deeply implement the major strategy of cultivating new types of agricultural business entities
Deeply implement the major strategy of cultivating new types of agricultural business entities
-
What are the common types of ecological agriculture models?
What ecological agriculture models are there?
条件筛选