The brooding ducks are divided into three types: the head duck, the summer duck, and the fall duck. In general, it is better to feed the first-row ducks, followed by the summer-water ducks, and the fall ducks.
People with duck experience said: "Spring ducks make money, and summer ducks still pay for this." The problem of spring brooding is that the temperature is unstable, the cold wave is frequent, the rain is too much, and the ducklings are more difficult to raise. However, practice has shown that ducklings raised in the spring just need to pay attention to warmth and moisture, strengthen feeding and management, and feeding problems are not too great.
Ducks are bred during the Ching Ming to Gu Yu. The ducklings hatched, and after feeding for 78 days, they drove into the green manure fields, rape fields, broad bean fields, and green manure fields in the ploughing fields. They allowed them to grazing on the muddy, roach, yellow pecker, small fish, and shrimps in the fields. Insects and other natural animal feed. By the time the early rice is harvested, egg-type female ducks begin to lay eggs and the ducks can be marketed. For ducks with both egg and meat, they can use the opportune time when the crops are harvested and there are many insects in the fields to make them fat.
Spring ducks should pay attention to fill Victoria A. Vitamin A deficiency mostly occurs in young ducklings and early laying ducks within 50 days of spring. The growth and development of sick ducks were severely impeded, and their weight gain was slow or even stopped. They presented with fatigue, weakness, weight loss, feathers, turbid fluid, dysmenorrhea, dyspnoea, exerciselessness, and walking cramps, followed by soft palate and yellow lightening of the palate. Severely ill ducks shed tears on one or both eyes. There were cheese-like secretions under the eyelids. The cornea became cloudy and softened, leading to perforation of the cornea and aqueous fluid in front of the eyes. In severe cases, the eyeballs subsided, blind, and even died. The egg production of diseased ducks decreased significantly, the color of egg yolks faded, the hatching rate was low, and the stillbirth rate increased;
The main reasons for the deficiency of vitamin A in young ducklings are as follows: the feed for spring-fed ducks is single, the feed for greens is insufficient; the processing and storage of feed is improper, and the vitamin A content is reduced due to oxidative rancidity; the environmental stress factors for breeding increase the number of young ducks The amount of vitamin A required; the lack of vitamin A in the breeding duck diet caused vitamin A deficiency in 1-2 week old ducklings.
Spring ducks are required to supply full-priced compound feeds to supplement feeds rich in vitamin A, such as carrots, spinach, squash, and cod liver oil. We must do a good job in the transportation, storage and storage of feeds to avoid the destruction of vitamin A due to oxidative rancidity.
Sick ducks can be treated with cod liver oil, 0.2-0.5 ml per gavage each time, 3 times a day. Or add 1000-1500 international units of vitamin A per kg of feed. For individual ducklings, 0.5 ml cod liver oil can be intramuscularly injected. The female ducks are fed with 1 to 1.5 ml of cod liver oil daily for 3 times, and the curative effect is better.
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