Under the condition of ensuring the complete nutrition of the feed, cattle and sheep heads can account for 30%-40% of animal protein, but they must be finely crushed into stuffing (0.2mm diameter) or meat porridge before they can be used by foxes. Question: In addition to meat and its by-products that can be fed to foxes, can various fish be fed to foxes? Fox fish raised in large groups are the main feed for foxes. Medium and small sea miscellaneous fish, their main amino acid content is similar to the protein of warm-blooded animals. Fish can be used as the main animal feed for foxes (especially Arctic foxes), and the price is relatively cheap. However, its by-products, such as fish heads, fish steaks and fins, contain very little essential amino acids and can be fed in small amounts. They can only account for 10%-15% of the protein in animal feeds, and the supply of other full-price feeds must be ensured. Otherwise there will be serious consequences. Fish is an important source of vitamins A, D, B12, calcium, and phosphorus. It is also rich in cobalt and iodine, but has low levels of iron, copper, manganese, and zinc. Unveined marine fish can account for 30% of the total feed, which can ensure the general needs of vitamins A, D and B12. Pay attention when feeding fish: Since pollock (pollen), ling cod, hake, hake and other cod fish contain trimethylamine oxide, which can turn iron into a form that cannot be digested and absorbed, Arctic foxes should not feed this kind of cod. The amount should not be too large and should not exceed 40% of animal protein. When feeding foxes in large quantities, ferrous glucose should also be added to supplement the iron deficiency. Otherwise, it will cause anemia, loss of appetite in foxes, indigestion, stagnant growth of young foxes, reduced or no sexual desire in male foxes, and increased empty pregnancy rate in female foxes. In addition, some marine fish, such as capelin, sardines, Far Eastern sardines, coho salmon, barracuda, etc., as well as some freshwater fish, such as carp, smelt, crucian carp, red cod, bighead carp, etc., contain thiamine enzyme, which can destroy Vitamin B1. The fish should be cooked and cooked for a few minutes to inactivate the thiamine enzyme. Dairy and egg feeds The protein and amino acid content of dairy feeds are feeds with high nutritional value. Cow and sheep whole milk and milk powder are commonly used in fox raising. The protein, fat, carbohydrates, inorganic salts and vitamins in milk, goat milk or milk powder are richer in nutritional value than any feed, and they are all digestible ingredients. They are indispensable feed for foxes during pregnancy and lactation. Giving a small amount in fox feed can increase the nutritional value of the feed and improve the digestibility and palatability of the feed. Pregnant and lactating female foxes can provide 20-30 ml of whole milk per day. If it is milk powder, you can add 1 part of milk powder to 7 parts of water, and the feeding amount is the same as whole milk. Feeding pregnant foxes milk can not only supplement the full value of protein, but also prevent the female fox from lacking milk, and can also neutralize some harmful substances in the feed. Various poultry eggs (chicken, duck, goose) are complete-price feeds with high nutritional value. Male foxes for breeding and female foxes during pregnancy and lactation can generally account for 5%-10% of animal feed. During hatching, 1 hairy egg will be thrown out, which can be fed as fresh eggs. The nutritional value of 2-3-year-old eggs is no less than that of original eggs, and they can be fully utilized during the fox growth period (puppy fox rearing period). Eggs must be cooked well when feeding. On the one hand, it can kill pathogenic microorganisms. On the other hand, it can prevent the antibiotic substances in the eggs from destroying the vitamin B7 in the feed. Question: Can various dry animal feeds be fed to foxes? Can. In my country's fur animal breeding industry, the commonly used dry animal feeds are mainly fish meal and meat and bone meal. Fishmeal is a complete nutritional feed. Foxes are best fed with fishmeal containing no more than 20% ash, no less than 50% protein, and no more than 10% fat. The ash content of fish meal processed from fish fillets, fish heads and other fish waste is often higher than 22%. Such fish meal has low protein digestibility and low nutritional value, making it unsuitable for feeding foxes. Peruvian fish meal is often used in the fox breeding industry, and its crude protein content reaches 60%. No matter what kind of fish meal is used, the salt content should not exceed 5%. The fishmeal must be loose, without clumps, light gray or yellowish in color, have a special fish aroma, and must not be moldy or rancid. Fishmeal with a foul smell must not be fed to foxes during pregnancy. Feed high-quality fishmeal, which can account for 70% of animal protein for foxes and arctic foxes in summer and 50%-30% in winter. The rest must be fed with fresh fish or meat by-products. During the processing of raw materials, fish meal does not contain thiamine enzyme and trimethylamine oxide due to the neutralization reaction. Therefore, there is no problem of vitamin B1 and iron deficiency during utilization.Due to the large number of sheep raised in the North China Plain and the Huang-Huai-Hai region of my country, lamb meat is often cooked and dried to make meat and bone meal. The nutritional value is very high, comparable to fish meal, and can account for 30-30% of animal protein in fox diets. 50%. Question: Generally, livestock farms do not raise one kind of animal. Most of them are foxes. Arctic foxes, raccoon dogs and minks are comprehensively farmed. A large number of carcasses are slaughtered and skinned in autumn and winter, which have high nutritional value. Can these carcasses be fed to foxes? ? Can. The meat products of furry animals do have high nutritional value. For example, 100 grams of unopened Arctic fox carcass contains 12.5 grams of digestible protein and 34.2 grams of digestible fat. Practice has proven that meat and bone meal processed from animal carcasses can account for 25% of dietary protein. In recent years, minced fresh carcasses of fur animals are usually cross-fed during the slaughtering period, that is, small mink carcasses are fed to water foxes and raccoon dogs; large fox raccoon dogs The carcass is fed to the mink. This type of feed is best cooked and fed after veterinary examination. If infected by pathogenic microorganisms, it should be discarded. In addition, if the leftover food of mink and fox has not spoiled, you can also feed raccoon dogs. Question: You said before that foxes can eat 14.5% plant feed, so what kind of plant feed can they eat? 2. Plant feed: It includes cereal feed, sweet potato and potato, cake feed, fruit and vegetable feed, etc. Grain feeds include corn, barley, wheat and other various grain flours. They contain a large amount of carbohydrates that are easy to digest and absorb, but contain less protein, and the biological value of the protein is incomplete. The amount of grain added to the fox's diet depends on the biological period of the fox and the fat content of the mixed diet. The amount added generally accounts for 15%-30% of the calories in the diet. In the form of feeding grains, corn flour is often boiled into porridge or processed into steamed buns in various parts of our country, and some are fed in puffed form. Processed and cooked grains can increase digestibility by 10%-20%. In addition, it is also fried and then crushed for use. Puffing is a promising processing method. After the grains are puffed, the carbohydrates are decomposed into 6% dextrin and 10% of the starch is turned into sugar. This is beneficial to the digestion and absorption of the fox and improves the palatability of the feed. In addition, the grains are processed After heat treatment, harmful bacteria are inactivated, which can prevent foxes from getting gastroenteritis, liver disease and diseases that affect reproduction. The digestibility of bran by foxes and arctic foxes is very low because bran contains a lot of cellulose, but bran can loosen food and promote intestinal peristalsis, so it can be used in small amounts. In fox and arctic fox diets, it should not exceed 10 grams. Sweet potatoes and potatoes with high starch content are very cheap energy sources. They can completely replace grains when grains are insufficient, but they must be washed and cooked before feeding. Cake and meal feed: The by-products of vegetable oil processing are oil cake and oil meal. The ones used for fox feed include bean cake, soybean meal, peeled peanut cake and sunflower seed cake. In summer and autumn, cake meal feed is allowed to replace meat and fish feed by 40%-50%, while in winter it can reach 30%. However, when using this feed, free fat, fat-soluble vitamins and yeast should be added. The amount of cake feed should generally not exceed 1/3 of the grain feed, otherwise it will easily cause soft stools or loose stools. Peeled peanut cake can replace more than 50% of animal protein (non-breeding period). Therefore, Shandong, Hebei and the areas south of my country that produce peanuts can make full use of peanut cakes. The places that produce sunflower cakes must also make full use of this feed source