Through the feedback of breeding friends, I learned that this year's bullfrog deformity rate is relatively high, and many breeding friends may have been affected by such problems, because the survival rate of this frog is relatively low. Especially this year, there are many special frogs, and deformed frog seedlings are very common.
So, today we will talk about the problem of bullfrog deformity rate:
According to network data, it is learned: in general, the malformation rate of a batch of frog seedlings can reach about 5%, and the serious deformity rate can exceed 20%, which is an amazing number, especially in the second half of this year, it is found that the deformity rate of frog seedlings is particularly many, it can be said that each batch of frog seedlings has several, which is definitely related to the decline in the quality of frog seedlings, accompanied by the problem that the survival rate of frog seedlings is low;
Some farmers invested more than 20 million tadpoles, and only 2,000 catties remained in the end. Even many farmers continue to put seedlings, the harvest is very poor, and in the end they can only buy small four legs to raise, but the quality of small four feet is also very poor, and the loss is very large.
Through reading the literature, we can understand the reasons for the high rate of malformation, as follows:
Perspective 1: It is related to germplasm degradation. If the same batch of tadpoles is not good, whether they are experienced teachers or not, more or less medicine, they are prone to deformity, so there is a problem with the seed frog that can be traced back to the source.
Opinion 2: It is related to feeding patterns. A farming friend in Fujian said that his friends who took seedlings with him had deformities, but he did not. He believes that the main reason is his good water quality and proper management.
Opinion 3: It is related to overmedication. Excessive use of antibiotics and abuse of insecticides can also lead to deformities.
Opinion 4: Related to the overuse of breeding frogs. Normal seed frogs lay eggs two or three times, while some seedlings lay seven or eight times, which is obviously overused, which is easy to cause frogseed deformity.
Opinion 5: It is related to seedling temperature and nutrition. Some experts have shown that the high deformity rate mostly occurs in the middle and late stages, mainly due to abnormal development of bullfrogs caused by overfeeding and overnutrition during high temperature periods. It also showed that the fat content of the frog mesentery with a high rate of deformity seriously exceeded the standard.
Opinion 6: Related to the decline in feed quality. It is widely reported that the feed quality of bullfrogs is declining due to soaring raw material prices over the past two years.
Frog seedlings have a high rate of deformity and are common every year, especially this year. Perhaps this is not a single factor, but the result of multiple factors. What do you think?