The rice seedlings were caused by the improper proportion of the diet.

The young raccoon dogs raised by a farmer are severely malnourished and have no appetite. The whole farm is generally small, thin and long, with an erect coat, dry and sparse, white nose, white soles of feet, and some even raccoons. The reason is caused by the improper proportion of diets.

1. Material list: (660-670) daily duck rack 75 kg, frozen fish 25 kg, duck liver 10 kg, corn flour 15 kg, wheat bran 5 kg, 1% fox and raccoon dog premix 0.5 kg, multivitamin additives are added in full quantity according to the instructions. Nutrient content: metabolic energy 962.54 kilojoules, protein 22.48 grams, fat 9.2 grams, carbohydrate 21 grams. Various feed weight ratios: duck rack 57.69%, frozen fish 19.23%, duck liver 7.69%, corn flour 11.54%, wheat bran 3.85%.

two。 Dietary analysis: this diet does not accord with the biological characteristics of Fructus Euphorbiae. Raccoon dogs are carnivorous order, Canidae, raccoon dogs are animals. Trays, minks and foxes are all fur animals, but their biological characteristics are different. They are omnivorous and mainly plant feed, while minks and foxes are mainly animal feed. The sum of animal feed duck rack, frozen fish and duck liver is as high as 84.64%, and the sum of plant feed corn flour and wheat bran is 15.39%. It is obvious that the proportion of animal feed is too high and the proportion of plant feed is too low. Feeding this kind of diet which does not accord with biological characteristics, the digestibility of oysters is weak, the food intake is small, and long-term feeding can make them suffer from nutritional and metabolic diseases.

3. Improved diet: in view of the above feeding problems, the author suggests adjusting the diet, adding fish steak, yeast powder, vegetables, and removing wheat bran. The adjusted diet is as follows: frozen fish 33.5 kg, duck rack 7.5 kg, duck liver 12.5 kg, fish steak 6.5 kg, yeast powder 5 kg, corn flour 87.5 kg, salt 1.25 kg, vegetables 67 kg. Premix and vitamins are added as before. Various feed weight ratios: duck rack 3.4%, frozen fish 15.18%, duck liver 5.66%, fish steak 2.94%, corn flour 39.64%, yeast 2.27%, salt 0.57%, vegetables 30.35%. Nutrient content: metabolic energy 2283.05 KJ, protein 25.6 g, fat 8.6 g, carbohydrate 96.6 g.

Feedback 7 days after the change, the appetite of the razor increased greatly, the hair was moisturized, the mental state was good, and the nose was red. One month later, the white nose disappeared, the raccoon dog became stiff, the growth accelerated and the body became bigger.

Wang Lize, College of Animal Science and Technology, Hebei Agricultural University