Fox estrus identification

2021-05-02

Identification of the fox's estrus: fox's estrus period, silver and black foxes are generally from mid-January to mid-March; Arctic foxes are from mid-February to late-April. The fox is easy to grasp. The male fox entering the estrus period is active, tending to the opposite sex, decreasing feed intake, frequently urinating, and the “fox-scented” taste in the urine is increased. When the female fox enters the female fox, the male fox shows great interest in it and keeps climbing. Cross-female foxes, such as female foxes, can reach a successful match when they are in heat. The identification of female fox's estrus is complicated. Commonly used identification methods, external genital observation methods, put-to-face test method, vaginal smear method, intriguing feeling method, estrus symptoms: female foxes show loss of appetite and climb caged doors. During the prosperous yin period, the vulva is oval, highly swollen, and the color is pink. At the same time, the labia valgus, the color darkens, the vulva can be seen slightly wrinkled, and the individual vulva flows out of the curd-like secretions. The female fox is active, frequent urination, and mild temperament. If the female fox is placed in a public fox cage at this time, the female fox will automatically raise the tail and accept the climbing of the male fox, which is the best estrous breeding period. Scorpion estrus identification: Scorpion generally estrus in February to March breeding. The difference in latitude in different regions is slightly ahead of schedule and delayed. In late Heilongjiang Province, estrus was assigned in late January, Jilin and Liaoning began to heat in early February, and the peak period of estrus breeding was in late February (more than 80%). The evaluation of female estrous estrus is generally conducted in three aspects: behavior observation, external genital inspection, and trial placement. Candidates can perform vaginal discharge cell image examination. The above methods should be combined and judged comprehensively, but should be based on genital examinations. The breeding ground begins at the breeding period and the scorpion group should be escorted for 1 time to record the shape, color, and secretion of the genitals of each septum. Later, according to the progress of the heat of each cockroach, it will be checked. Generally available "+", such a female can be checked every 5 to 6 days before; estrus change clearly shows (the basic separation of hair, swelling of the vulva increased, the color began to deepen, there is a greater amount of pale yellow mucus), marked as "++", such females can be checked every 2 to 3 days; if the female has a typical estrus performance (pubic hair completely separated, the vulva turns highly swollen, dark red, there is a lot of milky mucus), mark Is "+++". At this time, the mother-in-law has entered or will soon enter the estrus period, and she should immediately release the trial situation. If he accepts the mating, he can replace the official breeding of the male-female, and can also go directly to the matching-planning public funds. If you refuse to match, you need to check and put it right until you accept the mating. In addition to the geographical location mentioned above, there are nutritional conditions, maternal age, and heterosexual stimulation. Extensive breeding before the breeding period can not guarantee the normal development of their reproductive organs, estrus is generally late or even estrus. If the nutrient level is too high, the female tendon will be too fat, which can also affect normal estrus. Therefore, in the preparation of the breeding period, the feed must be guaranteed full price and the nutritional level need not be too high. Age is an important factor affecting the early and late estrus. The 1-year-old mother-eating estrus was the latest, and was concentrated in late February and early March. The 2-year-old and 3-year-old mother had earlier estrus and concentrated in mid-February; the mother-in-law estrus aged 4-5 years old was later than 2-3 years old. Focus on late February. In the breeding period, if the female parent in early estrus is in frequent contact with the public, it can also prompt her to enter the estrus period. Otter estrus identification: estrus estrus regular water estrus estrus is generally between March and March. It is more concentrated in the middle and early March. There are 2 to 3 estrus cycles (individuals have 4 to 5). Each estrus cycle is usually 6 to 10 days (estrus duration 1-3 days, interval 5-7 days). Population structure, change of light cycle, nutrition and other factors affect otter estrus. The mother's estrus was early in her estrus, and the new crickets were later. The estrus that was born early in the new cassia was earlier than that born late. Low latitudes (south) are slightly earlier than high latitudes (north). Out-of-match species are later than self-cultivation. Otter estrus identification Otter estrus identification to check the main external genital organs, put on the trial situation, and combined with the performance of comprehensive judgments, and more. Look, check, put. In the form of. 1 Observation of the estrus performance: The estrus mother's appetite decreased, activity increased, and she was excited. Sometimes licking the genitals, frequent urination, dark green urine, and some courtesan sounds of “咕, 咕”. When the neighboring cage is public, there is a clear tendency toward heterosexuality. 2 check the external genitalia: see table l a 7. The second period, the duration of estrus, is a suitable period for mating. Both the first and third periods are difficult to match. 3 Putting on the trial situation: The mother of the estrus puts on the performance of the courtship. Some of them fear and avoid the public money, but do not bite on the male. The unestrused mother-in-law was hostile and resisted the public's climbing. She bit her head on the head of the male, and often hid in the corner of a net or small room, making a harsh scream. In the trial of love, it is not advisable to choose a docile and fair manner. Even if the mother’s ejaculation does not reach the heat, it can also play a role in stimulating the opposite sex. If selective and aggressive public funds can scare the mother-in-law, not only does the trial fail, but it affects the subsequent heat. Note: Some females do not see obvious morphological changes in the external reproductive organs when they are in heat, but they can still mate and conceive. This phenomenon is called implicit estrus or silent estrus. Generally, after entering the estrus period, if there is still no change in the external genitalia, attention should be paid to whether there is a possibility of latent estrus. You can also choose the gentle feeling of public feelings, you can also take the female genital secretions under the microscope observation, if a large number of keratinized epithelial cells are estrus.

Tower Crane Steel Structure, regarded as the main parts of tower crane, refers to the tower crane jib, tower crane counter jib, tower head, tower crane Telescoping Cage, tower crane turning table,tower crane pull rod, tower crane mast section, tower crane fixing angle, ect. Steel Structure is made of steel, which fits the name.

Tower crane jib is a metal lattice structure of a normally triangular section, whose main mission is to provide the crane with the necessary radius or range. It is also called a jib. Like the mast, it usually has a modular structure to facilitate its transport.

The anchorage frame secures the tower crane mast to a structure or framework and provides stability when the tower crane is under load or experiencing wind forces.

Machinery arm also known as the counter jib, this houses the counterweights and pulleys that balance the crane.

The hook is the main load-bearing component that hauls loads. It is attached to a trolley that allows the hook to raise and lower, as well as move towards and away from the mast. 

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