How much is the current price of a breeding bull? What are the criteria for seed selection? Why do you wear nose rings? How to install it?

Bull refers to male cattle, tall and strong, who will stop eating after eating, but will not live to regurgitate; cattle are vegetarian animals with a wide range of food, most like to eat grass, but also like to eat some green plants (or fruits). Such as water peanut, sweet potato vine (seedling), corn (seedling), rice, wheat seedling and so on. So how much is the current price of a breeding bull? What are the criteria for seed selection? Why do you wear nose rings? How to install it? It is learned from Shandong farms that the price of breeding bulls varies according to breed, weight and other factors, ranging from one thousand to thousands.

What are the current breeding criteria for breeding bulls?

1. To have a clear pedigree, the parents and grandparents of the cow are required to be registered cattle of improved breeds, and those with incomplete pedigree records are not allowed to be used for breeding.

2. The appearance requirements of breeder bulls are obvious breed characteristics, well-proportioned body structure, obvious male characteristics and normal reproductive organs. Bulls with abnormal limb posture, depressed or arched waist, narrow chest, drooping abdomen, sharp oblique flow, monorchidism and cryptorchidism shall not be used for breeding.

3. The appearance appraisal grade of the breeder bull shall not be lower than the special grade, and the body weight and body size shall be rated according to the breed standard and shall not be lower than the first grade.

4. Breeder bulls should be physically healthy, middle-class, waist horn obvious but not prominent, ribs slightly exposed but not obvious, and drooping meat exposed but not abundant.

5. the semen of a breeder bull should be superior to an excellent breeder bull in terms of ejaculation, density, vitality, survival index, freezing tolerance, and so on, and should be selected according to the performance of its descendants, which is the progeny test. progeny determination is the best way to judge the genetic stability of breeder bulls, because it is only preliminary to determine its heredity according to its ancestral pedigree and its own performance, and it is the most reliable to choose according to the results of progeny test.

Why do breeder bulls wear nose rings?

Niu Jing is very stubborn.

Cattle trainers (farmers) have learned in practice that cattle's nasal septum is thin and full of nerves, as long as holding and stimulating the cow's nasal septum can make the cow feel painful and obedient, and concluded that a metal ring through the nasal septum and rope can lead stubborn cattle.

How to install the cow nose ring?

In order to avoid the harm caused by aggressive bulls to breeders, and to protect the personal safety of veterinarians in the treatment of sick bulls and in the process of epidemic prevention and quarantine, breeding bull nose rings should be installed when the calves reach the age of 6 months. The installation of the nose ring of the bull is also helpful to the domestication of the bull and the training of sperm production in the future. Here is a brief introduction to the installation of the nose ring of the breeding bull as follows:

1. Disinfection of instruments: soak the nose ring and nose ring forceps in the disinfectant above 20min, open the fixed bolts of the nose ring and disinfect them, and further disinfect them with 5% iodine tincture before operation.

2. Baoding of the bull: first put a thick rope around the neck of the bull to be installed with nose ring, and pull the bull's head out of the guardrail, then fix the bull's head and face on the guardrail to ensure that it can not move at will.

3. Puncture of the nasal septum: disinfect the nasal septum with 5% iodine tincture, firmly clamp the lower one of the nasal septum with nasal ring forceps, quickly pierce the nasal septum and pull out the nasal ring forceps.

4. installation of the nose ring: insert one end of the open nose ring into the punctured nasal septum, close the nose ring, tighten the fixing bolts, and close the nose ring tightly.

5. Disinfection of the surgical department: disinfect the wound and around the nose ring again with 5% iodine tincture to prevent wound infection.