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Managed By Fur Animal Keepers

2008/2/29 0:00:00 244

one Selecting and building sites emphasize "light" and "clean"

The selection and construction of the farm is a "long-term plan". First of all, the word "light" should be emphasized, that is, the breeding site must meet and meet the light needs of the fur animals. Because light is the ecological factor that fur beasts need to survive, especially for reproduction and hair changing. The conditions of "light" are met, and the other factors such as temperature, humidity and so on are followed. "Light" should pay attention to light cycle and light intensity. The light cycle is directly related to the geographical latitude. In low latitude areas where the light cycle changes weakly, it is not suitable to breed fur animals distributed in high latitude areas where the light cycle changes significantly; The intensity of light should not be too weak, because too weak will inhibit animal hair loss and reproduction; It should not be too strong. Too strong is not only hot in summer and prone to heatstroke, but also can make the hair color pale and lose luster, thus reducing the quality of fur.

The word "net" should be emphasized when selecting and building sites. That is to say, from the perspective of health and epidemic prevention and disease prevention, the site should be selected according to local conditions to reduce the losses caused by epidemic diseases.

two Emphasis on "fat" and "emotion" during preparation for breeding

"Fat" refers to the body condition of animals. Practice has proved that there is a direct relationship between animal body conditions and fecundity during the breeding period. Too fat and too thin body conditions are not conducive to reproduction. The suitable body conditions of animals in breeding period must be gradually adjusted during preparation for breeding, and must not be suddenly adjusted near the breeding period. The fertility should be gradually reduced after winter hair maturity and sexual organ development and before breeding according to the climatic conditions in various regions. At the later stage of preparation for breeding, the body condition should be adjusted to slightly low and lean, but not too low or too thin, otherwise the male animal's sexual desire will be reduced and the semen quality will become worse; Female animals are not only difficult to mate, but also inconvenient to increase nutrition during pregnancy. The best body condition is: the mink's belly is round and flat, and the crotch is sagging or slightly concave; Fox can be identified by looking at the contour above the arm from the rear and front. If the upper part of the arm has a flush contour or a depression in the middle, it is too fat, if it is similar to the big end of an egg, it is moderate, and if it is like the small end of an egg, it is too thin.

"Emotion" refers to aphrodisia, that is, in the preparation for breeding period, especially after winter hair maturity or "winter solstice", to promote the growth and development of sexual organs, so as to prepare for timely estrus and breeding. In feeding, it is necessary to ensure the supply of full price protein and supplement vitamin A and vitamin E. These two vitamins are directly related to the development and maturity of sexual organs, so they should be rationed at the latest after the "winter solstice". It would be too late to double the supply when the breeding period is up. At the later stage of preparation for breeding, continue to feed onion, garlic and other aphrodisiac feed, which is conducive to aphrodisiac and breeding.

three Pay attention to "accurate" and "refined" during breeding

"Accurate" means that the observation of oestrus identification and mating behavior should be accurate. The oestrus identification should not be subjective, but should be based on the sexual behavior of animals. In the so-called "look, check and release" comprehensive oestrus identification method, look (to see the sexual excitement and sexual behavior of animals) and check (to check the morphological changes of external genitalia) are all references, and the sexual behavior of the final release (to test oestrus) is the accurate standard for identifying oestrus. The word "trial" is very important, but the trial should be just right. If the female animal enters the estrus peak period, it should not take too long, or the bite between the male and female animals will cause sexual inhibition, resulting in artificial breeding failure.

The accurate observation of mating behavior is also very important, and it is necessary to accurately judge whether it is true, false or false. If there is no observation or doubt, it should be confirmed by the presence or absence of sperm.

"Sperm" means that if the semen quality of male animals is good, the semen quality inspection method must be used to confirm the breeding value of each male animal, and the male breeding animals with poor semen quality must be proposed and eliminated as soon as possible. In case of overall poor semen quality or decline, find out the cause in time and take corresponding measures. Supplementing complete feed such as liver, brain, milk and eggs, and adding vitamin A and vitamin E are beneficial to improving semen quality of male animals. During the breeding period, it is strictly prohibited to increase lighting, otherwise, the semen quality and sexual desire of breeding animals will decline in advance.

four Pay attention to "fresh" and "full" in pregnancy

"Fresh" means the quality of feed should be fresh. The requirements for feed quality during pregnancy are the most stringent stage of the year. It is necessary to avoid feeding all kinds of feed with poor quality, especially rotten and deteriorated feed, so as not to cause a group of stillborn, rotten or even postmenopausal complications. Therefore, do not take it lightly.

"All" means that the nutritional value of the diet during pregnancy should be complete. On the premise of fresh feed quality, a variety of feeds are mixed to improve the nutritional value of the diet. The diet should ensure the supply of full protein feed, such as essential fatty acids, vitamins and inorganic salts.

five Pay attention to "warm" and "milk" during childbirth and lactation

"Warm" means that the production box should be dry and warm. Maternity, temperature and milk are the three major factors in litter production, and none of them can survive without a litter. The temperature of the delivery box is particularly important in the early stages of childbirth. It not only directly affects the vitality of offspring, but also relates to the growth and development of offspring. In order to make the production box dry and warm, it is necessary to do a good job of disinfection of the room and the batting work of warm production before labor. Although the temperature difference between the north and south is relatively large, and the amount of catkins is adjusted to local conditions, the author believes that pre production catkins are necessary rather than redundant. In addition to the heat preservation function, the bedding grass is also conducive to the cubs' cuddling, sucking and moisture absorption.

"Milk" means that the milk of the mother cub is good. Milk is the only food and nutrition source of the cub at the early stage, so the amount and quality of milk directly affect the survival rate and growth and development of the cub. In order to promote the milk yield and improve the milk quality of the female animals, the feed amount of the female animals should not be limited in this period, and milk, eggs, liver, meat, etc. should be added to the diet. In terms of management, the lactation condition of the mother animals that give birth shall be checked at any time through their behavior and the growth and development of their offspring, and corresponding measures shall be taken. For primiparous female animals lacking milk, drugs can be used to promote lactation. If breast inflammation, lack of milk, poor milk quality, growth retardation of offspring, etc. are found during lactation, foster care measures should be taken in a timely manner.