Impure species. The current excellent duck species include Beijing Duck, Cherry Valley Duck and Di Gao Duck. They are all white feathers. They are produced by the crossbreeding of several breeds or strains. Their commercial growth is fast at the early stage (normally the body weight can reach 2.5 kg to 3 kg for 49 days to 56 days). However, if its merchandise generation continues to be reserved for seed use, and there is no strict seed selection, the offspring (offspring of the commodity generation) will experience degradation or uneven growth and slow development, which will result in impure varieties. Therefore, in principle, the current excellent meat duck breed should not be reserved for its commodity generation.
Inferior bad duck. At present, many people in rural areas buy ducklings from duck traders. If the duck trader sells hatched ducklings earlier or later, or does not meet the requirements of hatching ducklings, the survival rate is generally low and it is difficult to raise them. Big.
Dehydrated duck. The ducklings trafficked by the duck traffickers on long-distance routes may have poor water quality due to poor care and pay attention to water supply. For such ducklings, the phenomenon of stunting often occurs when they are brought back.
Sick duck. There are many ducks flowing in the duck trader's hands. If they do not pay attention to the disinfection of utensils, they can easily cross-infect the ducklings. On the other hand, the duck traders sell stalls in the street and have more contact with them, which can easily cause the ducklings to become infected with pathogens. Such ducklings will be brought back to support the disease and affect the growth and development.
Inferior bad duck. At present, many people in rural areas buy ducklings from duck traders. If the duck trader sells hatched ducklings earlier or later, or does not meet the requirements of hatching ducklings, the survival rate is generally low and it is difficult to raise them. Big.
Dehydrated duck. The ducklings trafficked by the duck traffickers on long-distance routes may have poor water quality due to poor care and pay attention to water supply. For such ducklings, the phenomenon of stunting often occurs when they are brought back.
Sick duck. There are many ducks flowing in the duck trader's hands. If they do not pay attention to the disinfection of utensils, they can easily cross-infect the ducklings. On the other hand, the duck traders sell stalls in the street and have more contact with them, which can easily cause the ducklings to become infected with pathogens. Such ducklings will be brought back to support the disease and affect the growth and development.