Breeding Techniques of Catfish Seedlings

Breeding Techniques of Catfish Seedlings

First, collect seed

The loach period is usually from late June to the end of August. It can lay eggs several times, and October is the appropriate season for picking. Usually, on the beach after the low tide, scrape 0.5 cm thick mud layer, into the net bag, wash the slime and sieving, sieve the sand and seedlings under the sieve and broadcast it into the wintering nursery pond. Nurture. In order to increase the amount of seedlings attached, it is possible to leave foot in the natural seedling production area, flatten the beach surface, build embankments and store water, and improve sand quality.

Artificial breeding in earthen ponds is a method worthy of promotion. The earthen ponds can be located in the mid-tide areas of muddy sand. The ponds can be large or small, and the main projects are constructing embankments, building gates, and flattening lands. Before nursery, clear water and fertilizer can be carried out to do a good job. When raising the seedlings, the relatives shall be placed in the doorway of the sluice at the first time after being overstimulated by the shade. The gates increase the amount of water inflow and outflow, resulting in stimulation of flowing water and better discharge of sperm and eggs. At the same time, adopting measures such as fertilization, feeding, and loosening the beach surface are beneficial to the development of larvae and metamorphosis.

Second, winter seedlings

After the natural seedlings are collected, the winter season is approaching. In order to avoid the dangers of freezing and predators, an impounded overwintering pool can be built in the muddy high tide area where the tide can be flooded. Overwintering ponds are suitable for 0.2 mu to 0.5 mu and the water depth is maintained at 20 cm to 30 cm. About 50 million mu are laid and the survival rate for overwintering is over 95%.

Third, the proliferation of species

The loach is a wide-temperature, wide-salt shellfish and can live in seawater with a water temperature of 0°C to 30°C and a salinity of 15 to 30. However, the requirements for the bottom quality are more stringent. They prefer to live in calm, smooth inner bays and in mudflats with a small amount of fresh water that is injected into the ground and stable in sediments. Based on these characteristics, the stocks can be colonized and stocked under the conditions suitable for the sea bottom sediment or the modified beach. Transplantation is generally carried out in the spring and autumn, from May to June in spring, from September to October in the autumn season, sowing is spread evenly on the beach after ebb tide, and about 500 kilograms of second instar pods are planted.

Fourth, Putian water aquaculture

After the breeding ground is selected, the beach can be divided into several rectangles or long strips along the direction of the tide. Each section is between several acres and more than ten acres. It is a kind of not to dig small intervals between the fields. Water storage method. In order to reduce the feeding rate and growth rate of the embankment at the dew-exposed time, Putian embankment aquifuging and aquaculture is currently used in some places so that the water depth can maintain a depth of 20 cm to 30 cm even after ebb tide. The increase rate is 1.5 to 2 times.

Fifth, the high tide area impounds winter

In order to prevent the death caused by frostbite in the second-instar seedlings in winter and spring, the wintering method for impounding high tide areas was adopted. Special care should be taken during the management to prevent running water. It is advisable to put the density of mulberry overwintering into 3500 kg to 4000 kg per winter.

Goji Berry also known as wolf berry is the fruit of the Lycium barbarum or Lycium chinense, two closely related species. This kind of fruit mainly grows in China and is commonly use in Chinese daily cuisine for making soup or as tea. It`s full of nutrient value and has numerous implied health effects and has been termed as super fruit. Goji berry have three kinds of quality and different grades. The qualities are Conventional, Low pesticide and Organic. Grades are 180pcs, 280pcs, 350pcs, and 500pcs per every 50 grams.

Goji Berry

Goji Berry

Goji Berry,Organic Goji Berry,Low Pesticides Goji Berry,Conventional Goji Berry

Ningxia Shun Yuan Tang Herbal Biotech Co., Ltd. ,