Culture techniques of crocodile turtles in greenhouse

Abstract: crocodile turtles can be raised at natural temperature in southern China. We can raise crocodile turtles in greenhouses in northern China, and take measures to keep the water temperature at 28-31 ℃ in winter, such as geothermal water, in order to improve the growth rate of crocodile turtles and increase economic benefits. let's take a look at crocodile turtle culture techniques in greenhouse.

Crocodile turtles can be raised at natural temperatures in southern China. We can raise crocodile turtles in greenhouses in northern China, and take measures to keep the water temperature at 28-31 ℃ in winter, such as geothermal water, in order to improve the growth rate of crocodile turtles and increase economic benefits. let's take a look at crocodile turtle culture techniques in greenhouse.

Growth conditions of crocodiles

Crocodiles are aquatic turtles, like to live in fresh water, often lying in the water, sand and weeds, often dig holes in the wild in winter, like quiet, once disturbed will immediately run away, when found that can not escape will turn to attack the enemy. The survival temperature is 3: 45 ℃, active frequently at 20: 35 ℃, optimum growth at 28-31 ℃, decreased activity at 15-17 ℃, hibernation below 10 ℃, deep hibernation below 5 ℃.

Crocodile culture in greenhouse

1, greenhouse culture conditions: culture site conditions, hot summer, indoor water temperature is not more than 35 ℃, can also be raised in plastic greenhouses, greenhouses, housing balconies, basements, spare houses can be raised. It is more ideal for sediment in natural water area and sediment. Baby turtles 5Mel 10 groups or juvenile turtles 30 groups must be reared in ponds according to size specifications and should not be mixed so as not to affect the growth of baby turtles.

2. Strengthen feeding management: feeding once at noon every day in early spring and early winter, feeding 40% twice a day at 9: 00 in the morning and 60% in the afternoon in the peak feeding season in late spring and early autumn. Bait is carried out three times (regular, qualitative, quantitative). Generally, the bait is finished in 120 minutes, clean up in time after eating, the feed should be cut into small size, and the altered material can not be fed to prevent the water from smelling.

3, pay attention to water disinfection: the turtle pond has a large area of 30 days to change the water, the pond is 20mur30 square meters, the pond is changed every 10 days, the artificial culture tank, plastic bucket and basin are small in area, change the water in time after feeding every day, the water temperature is high in summer, the pool water can not be lower than 50cm, the outdoor temperature is high, the basement keeps the appropriate temperature all the year round, and the crocodile turtles also grow normally. And disinfect regularly.

4. Breeding methods of crocodile turtles: wild crocodile turtles are raised for 3 years to lay eggs, but it takes only 18 months to breed in captivity. They begin to lay eggs above their body weight 2kg. Generally, they mate naturally from April to May and from September to October. Female turtles lay eggs at night and lay eggs in 4 batches of 3mur. they lay eggs in 4 batches, lay about 30,120 eggs a year, maintain a constant temperature of 30 ℃, and hatch young turtles with relative humidity of 8090% 40F50 days.

5. Disease prevention and control of crocodile turtles: as long as turtles pay strict attention to the feeding and disinfection of young turtles, they seldom suffer from the disease, occasionally have minor ailments, carry out isolation breeding in time, give the right medicine to the case, generally soak with malachite green and potassium permanganate concentrated solution for 20 minutes, traumatic inflammation with chlortetracycline, colds can be fed with cephalosporin, enteritis is fed with fluoric acid, indigestion and take multi-enzyme tablets or yeast tablets.

6. Management of crocodile turtles overwintering: after overwintering, the water temperature heats up, and the turtles begin to feed, often feeding animal viscera, small fish and shrimp, strengthening nutrition, enhancing disease resistance, keeping pond water fresh and preventing water quality from irritating the eyes.

Benefits of crocodile culture in greenhouse

The main components of crocodile turtle culture cost in greenhouse are seedling, feed, energy consumption and disease prevention. In addition, the survival rate is one of the important factors affecting the cost. According to the analysis, the price of crocodile seedlings is 130 yuan per crocodile in 2014, and the survival rate is 88%. The cost of harvesting commercial crocodile turtles is about 150 yuan each. Feed is calculated according to the weight gain coefficient, and the coefficient is 1.1. In other words, 1.1 kg of feed is needed for weight gain of 1 kg.

The alligator turtle seedlings are cultivated into commercial turtles of 4kg specifications for 18 months, the feed consumption is 4.4kg, and the feed price is 12000 yuan per ton, that is, the average feed cost of each 4.4kg commercial crocodile tortoise is about 53 yuan. the energy consumption costs such as water, electricity, coal and oxygen are 10 yuan per crocodile tortoise and 5 yuan for disease prevention. The total breeding cost is 218 yuan per animal.

The selling price of crocodile turtles is 88 yuan per kilogram at present. The average sales of 4.4 kilograms of each crocodile turtle is about 387 yuan, and the breeding profit is 169 yuan each.

The general greenhouse covers an area of 750m2 and 2500 crocodile turtles are stocked. If 2000 commercial crocodile turtles are harvested according to the survival rate of 80%, the profit of each crocodile tortoise is still low, and the profit of this greenhouse is 300000 yuan.