How Much Does a Forest Frog Cost per Jin in 2019 and How to Build an Egg-Laying Pond for Chinese Forest Frogs
The Chinese forest frog (Rana chensinensis) belongs to the class Amphibia, order Anura, family Ranidae, genus Rana, and is commonly known as the Hashima frog. It is a precious amphibian with high economic value, combining food and medicinal uses with tonic properties. Below is an introduction to how much a forest frog costs per jin and how to build an egg-laying pond for Chinese forest frogs.
It is distributed across 18 provinces nationwide, most abundantly in Northeast China, mainly in the Changbai Mountains and the Lesser Khingan Mountains area, and Jilin Province is one of the important producing areas for Chinese forest frogs. The main medicinal part of the Chinese forest frog is the dried oviduct product of the female, namely forest frog oil, which has effects such as “nourishing and tonifying essence, nourishing yin and moistening the lungs, and tonifying the brain and boosting intelligence", so the Chinese forest frog has important economic value. In recent years, due to severe destruction of the ecological environment and excessive capture, wild resources have declined sharply, and to meet market demand, developing artificial breeding of Chinese forest frogs is imperative.
How much does a forest frog cost per jin?
Prices vary depending on the place of origin, size, season and sex of the forest frog. For live forest frogs in the Changbai Mountains area, in spring female forest frogs cost 100-150 per jin and male forest frogs cost 20-35 yuan per jin, and in autumn female forest frogs cost 150-240 yuan per jin. The above prices come from the Fruit and Vegetable Market Channel of Tuliu.com.
Egg-Laying Pond for Chinese Forest Frogs
The egg-laying methods for Chinese forest frogs fall into two types: the pen-style egg-laying method and the cage-style egg-laying method. Spring temperatures in Northeast China are relatively low, and the amplexus and egg-laying period of Chinese forest frogs is generally around Qingming, requiring a temperature of 5-7°C and a minimum water temperature of 2°C. In the conventional pen-style egg-laying method, the egg-laying pond is built as a shallow pond 3m x 4m with a depth of 40cm, so as to conform to the habit of Chinese forest frogs laying eggs in shallow water. For Chinese forest frogs to lay eggs in the overwintering pond, the cage-style egg-laying method should be adopted, that is, after modifying the overwintering pond, eggs can be laid in the overwintering pond. The specific method is as follows: first drain some of the water from the overwintering pond, leaving the pond water 1.0-1.5m deep, use netting with a mesh of 0.5cm x 0.5cm to make an egg-laying box of 60cm x 70cm x 50cm and place it in the egg-laying pond; tie empty mineral water bottles on top of the egg-laying box to increase buoyancy so that the box floats on the water surface; put in 30-50 pairs of breeding frogs as planned; after the Chinese forest frogs finish laying eggs, remove the frog egg clusters from the egg-laying box and send them to the hatching pond for hatching, and at the same time put the frogs into the reproductive dormancy site for post-spawning dormancy of 10-15d, then put the next batch of breeding frogs into the egg-laying box for amplexus and egg-laying. The advantage of this operation is that there is no need to build another forest frog egg-laying pond, which saves space and water, and because the pond has a water depth of more than 1m, it can also prevent cold waves from causing freezing damage to the forest frogs.