How to raise northern pike? A detailed explanation of the key farming techniques
The northern pike is a species belonging to the pike genus, with a wide distribution range in China, mainly concentrated in rivers, lakes and other places with growing vegetation. It is a world-famous sport fishing fish. The flesh of the northern pike is very tender, with good taste, few bones, and not a strong fishy smell, making it a fish that many people like very much. So how should the northern pike be farmed? Below, the editor brings you the farming techniques for the northern pike. Let's take a look!
1. Pond preparation
The northern pike has strong growth ability and can be marketed in the same year of farming, and the northern pike has a very wide feeding habit, as the small fish of almost all fish species can serve as bait for the northern pike. Before farming, the fish pond must first be prepared. If it is the first time farming, attention should be paid to controlling the pond area well, which should not exceed 5 mu, to avoid farming failure. Then control the thickness of the mud at the bottom of the fish pond at about 12 cm, and the water level of the pond must not exceed 3 m. Ensure a sufficient, clean and pollution-free water source, with normal drainage and irrigation, and water quality meeting the farming standards, then equip it with aeration equipment.
2. Preparation before releasing fry
About half a month before releasing the fry, all the pond water should be drained out, then an appropriate amount of quicklime should be sprinkled in the pond to disinfect and sterilize the pond. Eliminate pathogens and other harmful substances in the pond, then dry it in the sun for about 3 days. Then apply sufficient decomposed farmyard manure and add water to about 70 cm to cultivate plankton bait. And before stocking northern pike fry, sufficient bait fish must be cultivated in the pond to meet the bait needs of the northern pike. Usually, the daily food intake of an adult northern pike is equivalent to its body weight, so it is essential to ensure sufficient bait.
3. Cultivating bait fish
When farming, we should reasonably adjust the stocking of bait fish according to the northern pike's food intake and carnivorous living habits. The food intake of the northern pike varies with the extension of growth time and changes in body weight. Therefore, in order to prevent northern pike from killing each other due to lack of bait during growth, we must cultivate enough bait fish before stocking. Then feed the bait by self-cultivation and purchasing. During the cultivation process, disinfection work must be done well to prevent the existence of diseased fish and affect the growth of the northern pike.
4. Water quality regulation
The northern pike likes to grow in clean and hygienic water with sufficient dissolved oxygen and warmth. When farming, we should pay attention to observing changes in water temperature and the growth of the fish, and add water appropriately, deepening the pond water level to about 2 m. In summer when temperatures are high, clean cool water should be added appropriately to maintain the transparency of the pond water and adjust the water temperature appropriately. Then use relevant agents to regulate water quality, once every half a month, for about 3 months. And according to changes in water quality, appropriately sprinkle fertilizers such as water-fertilizing compounds to regulate water quality. Pay attention to observing the dissolved oxygen content in the water, and aerate in time when it is insufficient.
The above is a brief introduction to the farming techniques for the northern pike. Farming the northern pike is relatively simple, but everyone needs to manage it carefully and do the basic work well to ensure the healthy growth of the northern pike and increase output. That is all for today's introduction. This article is for reference only and I hope it can help everyone!