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What are the causes of sows repeatedly failing to conceive after mating? How are they treated?
What are the causes of sows repeatedly failing to conceive after mating? How are they treated?
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A sow that fails to conceive after repeated matings: is it the sow's problem or some other cause?
A sow that fails to conceive after repeated matings: is it the sow's problem or?
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What are the reasons for sows repeatedly failing to conceive after mating
What causes sows to repeatedly fail to conceive after mating
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How the whole process of dog mating takes place
Male dogs have a special baculum (penis bone), so erection is not needed during mating. After the penis is inserted into the female dog's vagina, the corpus spongiosum urethrae and the corpora cavernosa penis rapidly become engorged and swollen, and are locked in place by the female dog's anterior edge of the pubis, so that the corpora cavernosa penis cannot be withdrawn. After 10--45 minutes, ejaculation ends, the corpora cavernosa penis shrink, and only then can the penis be withdrawn. A male dog must not mate more than 1 time per day. In hot weather it should be done in the early morning or in the evening. Do not mate within 2 hours after eating, to avoid reflexive vomiting in the male dog. After mating, do not forget to record the mating date, the male dog's name or number, and the
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Detailed Explanation of the Organization and Management Methods of Mating Nucleus Colonies
A mating nucleus colony is a small colony organized for a new queen bee to live and mate in; the time is on the 10th day after removal or the 7th day after the queen cell is sealed. To organize a mating nucleus colony, first prepare a mating box. You can use 2 or 3 partition boards to tightly divide a standard beehive into 3 or 4 small compartments. Each compartment can hold 2-3 combs, and entrances 1-3 mm long and 8 mm wide are opened in different directions. The hive wall in front of each entrance is painted with different colors such as yellow, blue, and white, so that the queen bee can identify its own hive. In each compartment of the mating box, place one frame of sealed
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How do you carry out selection and mating of geese? Scientific methods teach you to choose good breeding geese
Selection of breeding geese: Methods for retaining breeding stock Selection of breeding geese should be carried out in the following two periods: the first selection is carried out when the breeding geese are 70-80 days old. Those that grow and develop quickly, have a large body weight, are in good health, and whose plumage color and other appearance characteristics meet the requirements of the breed are retained as breeding geese, and the number retained should be 10%-20% more than the planned number of breeding geese. The second selection is carried out when the breeding geese are 180-200 days old. At this time, the breeding goose flock has developed sufficiently, and the secondary sexual characteristics of the geese are obvious. Breeding ganders are required to have a large head and thick neck, a robust physique, well-proportioned development of all body parts, wings held close to the body, and a prominent frontal caruncle
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A Complete Guide to Dog Estrus and Mating
Estrus and mating in female dogs is an important part of breeding work. Only by correctly understanding the cyclical changes in a female dog's sexual cycle and the timing of ovulation can mating be carried out at the right time, improving conception rates and reproductive capacity. I. The sexual cycle of the female dog. In reproductive science, based on the different sexual physiological changes in dogs, the canine sexual cycle is divided into four stages: proestrus, estrus, diestrus, and anestrus. 1. Proestrus: from the beginning of bloody mucus dripping from the vulva until acceptance of the male dog mounting,
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What is the best mating time for dogs
The mating period for female dogs is generally 8-10 months after birth, while for male dogs it is about two years or one year and one month after birth. There are exceptions, such as male wolf dogs, which should mate only after reaching two full years of age, while females do better after reaching one and a half years. The mating period for male dogs is 2-3 months later than that of female dogs. Saint Bernards and Danish wolf dogs do not enter their mating period until they have fully become large dogs. However, there are also occasional cases in which a young dog suddenly runs out of the kennel and does not return, and by the time it comes back it is already pregnant, so for 1-year-old female dogs, special
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