Astragalus breeding techniques

1. The source of bait is a carnivorous fish, which is eaten raw. Local sources can be used to solve the bait sources through multiple channels: First, base fertilizers should be applied in the rearing ponds, larvae and copepods such as zooplankton, rotifers and benthic animals should be cultivated; second, some spawning carp should be stocked in the rearing ponds. Holding eggs and letting them spawn and hatching larvae; thirdly, specializing in the breeding of snails, snails, and corianders; also combining with the development of pearl farming, using quail meat as bait; and fourthly, hanging black light traps above the breeding ponds to trap and fly. Moths, aphids, and other insects; Fifth, the use of the internal organs of pigs, sheep, geese, and ducks; Sixth, the cultivation or digging of earthworms, fishing for fly maggots, etc.; Seventh, when animal feed is insufficient, rice, noodles, melons can be fed. Peel and other plant feeds.

2. Feeding method Astragalus feeding should adhere to the "four set" principle: First, set the quality, do not feed rancid feed, to ensure fresh feed does not deteriorate; Second, quantitative, daily feeding amount should be adjusted according to how much the previous day's feeding , with a slight degree of surplus. The specific number varies according to the season. Normally, the daily feeding amount is 3% of the body weight from April to May. In August to August, the maximum intensity of the jaundice is the highest, and the growth rate is fastest. The daily feeding amount can increase to 8%~10 of body weight. %; When the temperature reaches 30°C or above, little or no feeding should be done. Generally should be checked 1 hour after feeding, if the bait has been eaten, indicating that the amount of bait is insufficient, should be properly increased, if not finished within 1 hour, then that the bait is excessive, should be appropriate reduction. Don’t spend a lot of time when you don’t want to bait. Too much feeding, Astragalus feeding too much, susceptible to bloating disease; Too little will slow the growth of Astragalus, and even cause the phenomenon of small beak eating small beak; The third is timing, according to the Huangxi have nocturnal habits, daily bait 2 times, feeding at 1am and 6pm, respectively, feeding in the afternoon; 4 positioning, in order to facilitate the habit of eating and eating at Huangpu, to facilitate observation of eating and cleaning materials, should set the table Feeding at a fixed place, in order to avoid food shortages from the cluster of yellow locusts, the food table should be properly dispersed and set a few more.

3. Pay attention to domestication The current breeding seedlings of Astragalus are mainly derived from wild harvesting. When they are initially stocked, they are not suitable for the environment. Generally, they do not eat artificially fed feeds and therefore need to be fed. Otherwise, they may easily lead to loss of appetite and result in breeding failure. . The specific method of taming is: Do not feed 3 to 4 days after stocking. The food in the abdomen was digested and turned into an empty stomach. The pool water was then allowed to dry, fresh water was added, and priming was performed in the evening. When priming, chop the crickets, oysters, etc., which are most liked by Astragalus membranaceus, and chop them into several small piles on the side of the inlet, and fill them with water, resulting in micro-flow. The first feeding amount can be 1%~2% of the weight of the Astragalus, and if it is finished on the 2nd morning, the amount of feeding can be increased to 2%~3%; if the day's food can't be eaten, it will be remnant. The bait was removed and the feed was fed on the day before. After the food is eaten normally, the bran, melon peel and bean cake with more abundant sources can be added to the food. The first time, 1/5 of the food can be added, and 1/5 of the raw food can be reduced. If the food is normal, Afterwards, 1/5 of the normal baiting is added every day, and it can be fed normally after 5 days.

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