Duck feeding and management
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Laying duck is a meat-based hybrid duck that is produced by intergeneric distant hybridization between a duckling duck (also known as Muscovy duck) and a domestic duck. Ducks have no reproductive ability. Ducks weigh more than their parents, and the heterosis rate is 25.4%. The main characteristics of the quail duck are its fast growth, full chest and thick chest muscles, chest muscle percentage of 15% to 16% of total net weight, less than that of other duck species, high lean meat ratio, tender meat, and strong life. Resistant to extensive feeding, suitable for fat filling, producing high quality fatty liver. The hybrids that produce ducks and ducks are divided into two groups: orthogonal (that is, duck head duck (male) and domestic duck (female)) and backcross (ie, domestic duck (male) and tufted duck (female)). Duck production generally uses natural mating, male to female ratio of 1:4, male ducks should be placed in the mother duck group before 20 weeks of age, male and female mixed group feeding, so that each other is familiar with, sexual maturation can be successfully mated rear. One of the technical difficulties in duck production is the low fertility rate of naturally mated female ducks, typically between 50% and 60%. When artificial insemination is used, it is necessary to strengthen the breeding training and enthusiasm of onion ducks, and the effect of insemination twice a week is better. China generally adopts orthogonal methods to produce ducks and ducks. This is because this mating method uses mother ducks as female parent and produces more eggs. Each female duck can provide more ducklings and lower the cost of ducklings. The weight of male and female ducks produced by orthogonal methods is not much different. The average body weight at 12 weeks of age can reach 3.5-4.0 kg, which is beneficial to the production of ducks. According to the research, ducks with large body size and many egg-laying Beijing ducks are used as mother ducks. They not only have good meat performance, but also have excellent liver performance. If the ducklings are produced by reversed cross-breeding, the ducks produce less eggs (only 80 to 120 eggs per year), and the weights of male and female ducks produced vary greatly, and 12-week-old male ducks can weigh up. 3.5 to 4.0 kg, while female ducks only have 2.0 kg. Therefore, it is economical to produce ducks with reversed methods.