Reproductive organs and physiological characteristics of female Fox
The reproductive organs of female foxes are composed of ovaries, fallopian tubes, uterus, vagina and external reproductive organs. The external reproductive organs include the vaginal vestibule, labia and clitoris.
The female fox ovaries are located at the third and fourth lumbar vertebrae, the posterior edge of the kidney. The left ovary is more anterior than the right ovary. The ovaries are flat and grayish red. During estrus, the ovaries are 2 cm long and 1 wide. 5 cm; fallopian tube length 5-7 cm. The ovaries and fallopian tubes are covered with adipose tissue. The uterus is a double horned uterus, and the uterine horn and uterine body are suspended by the broad ligament of the uterus on both sides of the lower lumbar pelvis. The uterine horn is 10-13 cm long, the uterine body is 4-6 cm long, and the cervix protrudes into the vagina. The vagina is 6-8 cm long, the front end is connected with the cervix, and the posterior part is connected with urinary reproductive vestibule. The vestibule has two more developed protuberances, mating. During mating, the vestibule was stimulated and contracted violently, and the protuberances on both sides were enlarged, which acted together with the penile globule of the male fox, and even crotch appeared. The vulva of the female fox interacts with the penile globule of the male fox and appears the edge crotch. The vulva of the female fox is upper round and lower pointed, non-reproductive is covered by pubic hair and is not exposed; there are morphological changes during the breeding period.
- Prev
Breeding of white raccoon dog
White raccoon dogs and their characteristics raccoon dogs in nature have always been bluish brown, this common color type is genetically called the wild type. In 1974, Harbin Zoo in Heilongjiang Province acquired a rare male white raccoon dog (eyes and kisses are light pink). In 1980, yellowish brown or light blue eyes were found in the raccoon dog population of three northeastern provinces, kissing black white raccoon dog or white raccoon dog. These special color types, which are different from the wild type, are called mutants. The Special products Research Institute of the Chinese Academy of Agricultural Sciences uses these precious white raccoon dog mutation genes.
- Next
Canine nicotinic acid deficiency
Due to long-term insufficiency or malabsorption of nicotinic acid. Clinical symptoms such as blackening of the tongue, dermatitis, restlessness and spasm can be seen. Nicotinic acid is the main treatment. [prescription] nicotinamide 50-IOOmg usage: oral administration, twice a day, for 5-7 days.
Related
- On the eggshell is a badge full of pride. British Poultry Egg Market and Consumer observation
- British study: 72% of Britons are willing to buy native eggs raised by insects
- Guidelines for friendly egg production revised the increase of space in chicken sheds can not be forced to change feathers and lay eggs.
- Risk of delay in customs clearance Australia suspends lobster exports to China
- Pig semen-the Vector of virus Transmission (4)
- Pig semen-the Vector of virus Transmission (3)
- Five common causes of difficult control of classical swine fever in clinic and their countermeasures
- Foot-and-mouth disease is the most effective way to prevent it!
- PED is the number one killer of piglets and has to be guarded against in autumn and winter.
- What is "yellow fat pig"? Have you ever heard the pig collector talk about "yellow fat pig"?