Laying duck refers to the offspring produced by crossing the male duck of the genus Hyphalis with the female duck of the genus Hydra, and is also called the semi-muscular duck. Because it does not have the ability to breed it is called ducks. It is characterized by fast growth, good meat quality, lean meat, resistance to rough feeding, high feed utilization, and strong disease resistance. It can weigh more than 3 kg at 60 days old and is an excellent meat type duck.
Hybridization method
Can be used in combination with Cameron-Cambell duck and Shaoxing duck, calf-Cambell duck as male parent, Shaoxing duck as female parent for crossbreeding (natural mating) to produce F1 generation, and then F1 as female parent, Keri Mow duck was used as a male parent to crossbreed again with artificial insemination to produce commercial ducks.
Artificial insemination
Artificial insemination technology plays an important role in duck production. The size of the F1 generation produced by the cross between the Kazan-Komber duck and the Shaoxing duck is relatively small, while the size of the Keri Mozuku duck is huge, and the two cannot be naturally mated.
DUCK TOURING: The duck is fixed on the picking table and the Kremo duck is released. When the duck climbs on the duck, the picking staff squats on the right side of the duck and holds the collection in the left hand. cup. When the duck frequently shakes the tail, the collection cup will be at an angle of 60 degrees with the ground to block the cloacal cavity of the duck and the semen can be harvested smoothly. The ejaculate amount per drake is between 0.6 ml and 1.2 ml.
Semen dilution: fresh semen has a shorter survival time in vitro and must be diluted within 0.5 hours. Fresh semen was diluted with saline at a rate of 1-2. Diluted semen is required to be used within 2 hours, otherwise it will seriously affect the fertilization rate.
Insemination: The mother duck is supine on the insemination table. The insemination worker squeezes the lower edge of the cloaca with his left hand, forcing the cloaca to open and the vaginal opening out. Then he inserts the spermatozoa with the spermatozoa from the vaginal opening with a depth of 3 cm to 4 cm. The left hand relaxes, and the right hand can Start insemination. The amount of 1 insemination in the female duck is between 0.05 ml and 0.1 ml, and 1 drake can produce up to about 30 female ducks.
Incubation and feeding management
Incubation conditions
The hatching period of a typical breed of duck is 28 days, while the breeding period of a duck is 32 days and it needs to be incubated at a constant temperature of 36.8°C. Other hatching conditions are similar to those of ordinary ducks.
Cultivating young chicks
Choosing young children: Select the bright hair, soft and elastic abdomen, clean anus, thick legs, large mouth, great eyes, lively and robust ducklings, and remove the steamed duck, bleat eyes, stomping feet, and blood umbilicus ducklings.
Insulation: The ducklings remain in the temperature range of 30°C-32°C within 7 days after hatching. From the seventh day, the temperature can be lowered by 1°C per day; after 15 days, the temperature drops to about 18°C; after 20 days, the temperature can be completely defrosted and the room temperature can be reduced. Feeding. If the temperature is low during the early brooding period, thick dry straw can be placed in the house.
Open food: Ducklings can be eaten in 20 hours to 24 hours. Give water before eating. When drinking water, the water can be put into a shallow water dish, and the center is stamped. Only the side of the water is exposed and the ducklings can learn to drink. Water can also be added 0.01% potassium permanganate, glucose, vitamins and so on. One hour after drinking, boiled rice (approx. half-cooked, moderately soft and hard) was soaked in fresh water to remove the stickiness. After draining, sprinkled on a plastic sheet and allowed to feed. It is also possible to feed unpolluted vegetable puree, but it must be noted that if there is too much water in the vegetable puree, excess water must be removed before feeding. On the day of eating, they were fed once every 1.5 hours to 2 hours, and they only fed 80% of their full weight at a time to prevent swelling.
From the second day to the fourth day after the start of eating, drinking and feeding 5 times -6 times a day, the fifth day - the 15th day changed to 4 -5 times / day, 15 days later reduced to 3 - 4 times / day. The feed began to use half-cooked, soft and hard rice, but from the fourth day onwards, some formulated feeds could be added to train and eat coarse grains. From the tenth day onwards, rice was no longer fed, and all the mixed feeds were used instead of mixed grains. The reference formula was: corn 46%, broken rice 10%, wheat 5%, fried soybean 17%, fish meal 5%, rapeseed cake 7%, cocoon 7%, bone meal 2.7%, salt 0.3%.
At the same time, ducklings should also be fed with green feed. At the age of 4 days to 10 days, the green feed can account for about 20% of the diet, gradually increase to 30%-40% after 10 days of age, single feed and mixed feed. can.
Drainage: Ducklings can be drained after 1 week of age to allow them to swim, wash and fleece. At the beginning, the water is discharged 2 times - 3 times a day, each time for 10 minutes - 20 minutes; gradually extend the water release time, after 1 week At the end of each feeding, 8 cm to 10 cm deep shallow water is placed; after 15 days, the ducklings can be allowed to move freely into deep water.
Young bred
Grazing during the day: can be placed in paddy fields, ponds, rivers and other waters, the shore put some feed (green material: fine material = 1:2). When you are hungry, you can eat in the pond and you can bathe in the pond when you are not eating. The reference formula was: corn 62%, wheat drum 15%, fried soybean 6%, fish meal 7%, rapeseed cake 7%, bone meal 2.8%, salt 0.2%.
Night feeding: The venue is located beside the pond or river bay. The enclosure requires air circulation. The bamboo bar with a height of about 60 centimeters is used to house the duck bar. The breeding density is 6 feathers - 7 feathers per square meter. Set a sink on the side of the pond and place the trough in the middle. At the same time to add the green material, the general ratio of green material and bad material is 2:1, and the feed formulation is the same as during the day.
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