catalogue
1. Living habits
2. Morphological characteristics
3. Economic value
4. Breeding technology
5. Preventive measures
1. Living habits
Black dolphins are gentle, gregarious, timid, afraid of fright, interference and sensitive hearing. As long as rats are prevented, cages and ponds without covers can be cultivated. In a quiet situation, sudden noise and the intrusion of people and other animals will cause the black dolphin to be disturbed and panic, so we should pay attention to prevent it from being frightened; When you are hungry, you will scream and be lively and lovely as long as you hear the footsteps of the breeder; When the mother is in estrus, the male body purrs to beg and chase. When encountering some unusual sounds, the whole group purrs as a warning.
2. Morphological characteristics
Black dolphins are herbivores of mammals, with small size (0.5-0.65 kg), which can be used as medicine and edible. Feeding for 3-4 months and weighing 0.65 kg can be put on the market. Black dolphins are delicious, tender and easy to digest and absorb, and are regarded as the treasure of strengthening the body by the people. Fur can be processed and utilized. The main cultivation techniques are introduced as follows. Small dolphin native to South America. Its size is small (0.5-0.65 kg), and the black dolphin is gentle, gregarious, timid, afraid of fright, interference and keen hearing. He has black hair, black eyes, black mouth, black feet, no tail, short ears and limbs, and is not good at jumping. Generally, they don't bite or catch people. China had the habit of eating black dolphins and raccoon meat in ancient times, and it was selected as a senior wild vegetable in the menu of famous dishes in China. The delicious taste of black dolphins and beavers can be seen from the turtledoves in the sky and the black dolphins on the ground.
3. Economic value
Medicine and food. Black dolphin meat is delicious and tender, easy to digest and absorb, and the fur that people regard as the treasure of strengthening the body can also be processed and utilized.
The black dolphin is a versatile herbivore. Its meat is tender and delicious, with low fat and low fat.
Cholesterol meat, with strong game characteristics, is rich in protein, 17 amino acids, calcium, phosphorus, iron and other trace elements, as well as melanin and anti-cancer elements such as zinc and selenium. The content of trace element iron is three times that of soft-shelled turtle, which is the best tonic for lying-in women and after operation (its efficacy far exceeds that of soft-shelled turtle and black-bone chicken). Black dolphin meat is an ideal nutritious health food. Nutritionists call it beauty meat for women, bodybuilding meat for young people, nourishing meat for children and anti-aging meat for the elderly. Black dolphin meat has obvious dietotherapy effect on gastropathy, hypertension and coronary heart disease. In addition, zinc, selenium and other elements have anti-cancer effects. Therefore, it is an ideal natural nourishing health product, which has the effects of nourishing, caring skin and strengthening yang, and has a good regulating effect on malnutrition, anemia, insomnia, anorexia and fatigue. Regular consumption can also effectively balance various nutrients needed in the body, promote normal secretion and metabolism in the body, and enhance immunity.
4. Breeding technology
Black dolphins are herbivores and have a high digestibility of crude fiber. All kinds of weeds, vegetables, leaves, melon skin, plant stems and leaves, straw and other straws are its good feed. If plants such as wheat or hay are not supplied for a long time, black dolphins will peel off their skins, so attention should be paid to the proportion of concentrate when feeding, supplemented by a small amount of concentrate such as grain, wheat and corn.
There are many ways to raise black dolphins, which can be pond-type, box (cage) type and three-dimensional factory culture, according to local conditions. When farmers raise a small amount, they can raise them in cages. Cages can be made of wood strips, bamboo chips, iron wires, etc. , specifications for 60cm (length), 50cm (width) and 40cm (height). The bottom of the cage is padded with sawdust or hay, which is beneficial to keep warm and absorb moisture. The advantage of this feeding method is that it can control reproduction and feeding and keep it clean and hygienic. Pond culture should be adopted under the condition of bungalow and wide shed, and three-dimensional factory culture can be adopted for large scale.
Feed quality is the key to the breeding of black dolphins, and it is also the focus of feeding management. First of all, it is necessary to prevent the feed from going moldy and deteriorating, and it is best to feed it with it. Drink clean water when feeding, eat less and eat more meals. The daily intake of each adult black dolphin is about 1.50g, and it is fed once every morning and evening to keep the tank clean and hygienic. Secondly, rats and snakes should be prevented from entering the breeding grounds. Rats and snakes not only pollute feed, but also devour black dolphins, causing unnecessary losses.
5. Preventive measures
1. At present, the breeding of black dolphins is mainly to sell farmed dolphins, and the processing level is very low. Most units use high-priced recycling to induce farmers to introduce, so farmers should first find out the source before introducing, buy from farmers with a certain scale and technical strength, and ask for relevant files, genealogy and other detailed information.
2. Feeding management is the key to raising black dolphins. The feeding room should always be quiet and dry, warm in winter and cool in summer. The room temperature should be kept at 18℃-25℃ and the relative humidity should be 45%-55%. Therefore, breeders should be serious and responsible, pay attention to observation and deal with problems in time.
3. Under strict feeding and management conditions, black dolphins bred artificially rarely get sick, but if the feed is deteriorated, malnourished and poorly managed, diseases will occur, and common diseases include swelling disease and wasting disease.