How to raise crocodiles in captivity? How many jin a year? What is the policy of the country? How much will it be invested?

Crocodile culture has the advantages of low investment, quick effect, remarkable economic benefit, medicinal value, high ornamental value, high leather value, good market prospect and broad breeding prospect. So how to raise farmed crocodiles? How many jin a year? What is the policy of the country? How much will it be invested? From Master Hu, a crocodile farmer, it is learned that crocodiles grow rapidly in a year. Generally speaking, crocodiles can grow 40 to 50 centimeters in a year. Crocodiles grow faster because they are small when they are young, and can grow 20 or 30 jin a year.

How to raise crocodiles in captivity?

1. Site selection of the base: the environmental condition of the whole area is good, there is no industrial pollution, pesticide pollution and domestic pollution, the water source is sufficient, the water quality is good, the air is fresh, and the soil is pollution-free. The fish ponds in the crocodile breeding base have fertile soil, environmental hygiene and fresh air.

2. Fish pond facilities: the bottom of the fish pond is flat, the silt ≤ is 20 cm, the water depth is 1-1.5 meters, and there is a 1-meter-high fence around it to prevent crocodiles from running and outsiders from entering. Feed fish (tilapia, silver carp, bighead carp) the bottom of the pond is flat, the silt ≤ is 20 cm, and the water depth is 1.5-2 meters.

3. Selection of disinfection: after drying the bottom of the fish pond, clean the pond with quicklime before releasing the seedlings and adjust the water quality. Crocodiles choose healthy and disease-free seedlings for stocking, while feed fish choose healthy and disease-free seedlings such as tilapia, silver carp and bighead carp for stocking.

4. Stocking density: 200,300 crocodile fry with a body length of 30mm 100cm (3kg / mu) are released per mu, and the stocking density of forage fish (tilapia, silver carp and bighead carp) is carried out according to the routine.

5. Feeding management: all crocodiles are fed with fresh feed fish (tilapia, silver carp, bighead carp). Feed fish are mainly mixed feed, corn, wheat husk, etc., regularly use quicklime, beneficial microorganisms and water quality improver to change water and add oxygen in time.

6. Water quality management: crocodile ponds should constantly inject new water to ensure fresh water, and at the same time discharge old water from crocodile ponds to fish ponds where tilapia, silver carp and bighead carp are raised, so as to make full use of aquaculture wastewater from crocodile ponds to ensure ecological balance and environmental hygiene.

7. Heat preservation and overwintering: crocodiles are not cold-resistant and stop their activities when the water temperature drops to 15 ℃. In cold weather in winter, cover the crocodile pond with thin film, and take high-temperature water from deep wells into the pond to ensure that crocodiles and other fish survive the winter safely.

What is the policy of farmed crocodiles?

1. The fishery administrative department shall be responsible for the protection and management of all species of crocodiles (except Chinese alligator, the same below). All crocodiles that are not of origin in China shall be managed according to the national second-class protection of aquatic wild animals, and the franchise management of domestication and breeding, operation and utilization, import and export shall be carried out.

2. Crocodiles imported duty-free shall be strictly used for scientific research such as artificial domestication and breeding, and commercial activities such as sale, exchange, transfer, rental and exhibition shall be prohibited.

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How much does it cost to raise crocodiles?

Crocodiles consume mainly meat (including scraps, chicken bones, etc.) and fish, with an average annual feed amount of 72.6 kg, equivalent to no more than 500 yuan. In addition, raising alligators can make maximum use of breeding places and equipment, the area of breeding fence is not very large, and the breeding density is quite large. Young alligators can be raised 17 per square meter within one year, and 1 adult alligator per square meter of 2 ~ 5 years old. However, the density of adult alligators that have been bred for more than 10 years is slightly lower, and the breeding area of each alligator is 10 square meters.