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How to keep the cardinal tetra? Care methods and precautions
Native to the middle and lower reaches of the Amazon River. The fish body is 4 cm to 5 cm long, spindle-shaped, and laterally compressed. The body is slightly wider than that of the neon tetra. The dorsal and ventral margins form a shallow arc, and the head and caudal peduncle are correspondingly wider, with a rounded, blunt snout tip. The mouth is slightly large, and the eyes are also large, located at the upper front of the head. The dorsal and pectoral fins are normal in shape, and the distance from the origin of the dorsal fin to the snout tip is slightly shorter than the distance to the base of the caudal fin. The anal fin is elongated, and the caudal fin is forked. The body color is very brilliant, with a yellow-green appearance on the back. The striking feature of this fish is on both sides: from the rear edge of the eye to the caudal peduncle there is a relatively wide blue longitudinal band, and below the longitudinal band there is
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Releasing fish fry in early spring requires care; keep these precautions in mind
Fish fry quality For fish fry of the same species and same age, the specifications should be uniform, with little difference in body length and body weight, thick back muscles, bright color, intact scales and fin rays, normal activity, and strong upstream-swimming ability. After being taken out of the water and placed in a basin, the gill covers should not open, the tail should not bend, and the fish should keep jumping, with no wounds or parasites on the body surface. Fish fry disinfection Some farmers do not disinfect fish fry at all when releasing them, resulting in a high disease rate, and drug treatment is not ideal. In fact, as long as fish fry disinfection is done well, disease prevention can often achieve twice the result with half the effort
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What are the precautions for selecting wild eel fry
To succeed in farming yellow eels (Monopterus albus), high-quality fry is the prerequisite. Therefore, when selecting high-quality wild eel fry, the following ten points should be noted. 1. The size of the eel fry should be appropriate. Generally, the artificial farming period is 5-6 months, and the weight gain multiple is 2-4 times. At the end of the year when selling, only individuals with a size of over 100 g can fetch a higher price. Therefore, fry stocked in April-May should weigh over 30 g. 2. Try to choose cage-caught fry. Yellow eel fry come from two sources: artificial breeding and natural capture. The number of artificially bred fry
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What Is the Current State of the Silkie Chicken Market? A Full Breakdown of Raising Precautions
The Silkie chicken is one of China's precious chicken breeds. It gets its name from its black skin and black bones, and it is renowned at home and abroad for its high tonic, medicinal and ornamental value. Its breeds include the Taihe Silkie and the Chinese Black Phoenix chicken, among others. The feeding and management of Silkie chickens is basically similar to that of other chicken breeds. 1. The current market state of Silkie chickens. In recent years, as people's health awareness has increased, market demand for Silkie chickens has risen sharply. At present, Silkie chickens are in fairly short supply in most rural markets in China, and prices are climbing. Therefore, farmers who seize this favorable opportunity to raise Silkie chickens in small batches or large
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What are the precautions for feeding pigs soybean cake?
Soybean cake is a high-quality feed for pigs. It has a fragrant aroma and pigs love it very much, but it lacks vitamin D, carotene and calcium. Some carrots and mineral feeds such as bone meal and stone meal should be supplemented. The amount of soybean cake used must not be too much; generally about 15% of the daily ration is appropriate, and more than 20% often causes diarrhea in pigs. Therefore, when using soybean cake to feed pigs, it must be used scientifically and fed in appropriate amounts so that it can play its role as a high-quality concentrated feed; otherwise, it will have the opposite effect.
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What are the precautions for feeding pigs with distillers' grains? Farmers should keep them in mind
Distillers' grains are divided into baijiu distillers' grains and beer distillers' grains. Baijiu distillers' grains have 32 percent dry matter, 3.36 MJ per kg digestible energy, and 7.5 percent crude protein. Beer distillers' grains have 14 percent dry matter, 1.43 MJ per kg digestible energy, and 3.6 percent crude protein. Whether baijiu distillers' grains or beer distillers' grains, they must be fed fresh; if piled up for a long time, they will become moldy and spoiled. If there is any left over, it can be put into a large vat, trampled down firmly, and soaked in water. Pregnant sows and lactating sows are not suitable for feeding, to prevent miscarriage, stillbirth, and so on. For meat pigs, it generally does not exceed the daily ration
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Key Management Points and Precautions for Cotton During the Full Square Stage
At present, most cotton in our province has entered the full square stage. In view of the current high temperatures, scorching heat, drought and little rain in most areas, the following management technical recommendations are specially put forward for the reference of the broad masses of cotton farmers. 1. Watering and topdressing. Water appropriately and apply a small amount of nitrogen fertilizer to promote seedling growth. For cotton fields with poor soil fertility, insufficient or somewhat low base fertilizer, and weak cotton growth, 5 kg of urea per mu can be topdressed along with watering. Phosphate fertilizer and potassium fertilizer can also be added at the same time; generally, 5 kg each of diammonium phosphate, potassium sulfate or potassium chloride per mu. 2. Proactive chemical regulation. Spray mepiquat chloride before watering for proactive chemical regulation
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English Setter Buying Tips and Precautions
(1) Before buying, you should first read some materials or books about this breed to gain a preliminary understanding of its external appearance and inner characteristics, so as not to be at a loss when buying, or even mistakenly choose an unqualified breed. (2) The shoulder height of this breed should not exceed 70 cm. Since puppies are not yet fully developed, around 60 cm is suitable; the weight should not exceed 30 kg. (3) The head should be relatively long and narrow, the muzzle should be slightly square, the stop should be obvious, and the incisors should meet in a pincer or scissor bite; the nose tip should be black or
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What are the precautions for fish harvesting during freezing periods?
The Spring Festival is approaching, which is an important period for harvesting aquatic products. Brood fish and fish about to be sold are raised together, so attention must be paid to protecting the brood fish from freezing. Do not carry out operations when freezing occurs. Add water to ensure a water depth of 1.5 m to 2 m to stabilize the temperature. Try to avoid exposing the brood fish to the air. Harvested brood fish should be bathed in 2% salt water for 15 minutes to 20 minutes to prevent and treat saprolegniasis. In places where eels are raised in net cages, the net cages should be promptly sunk to the bottom to contact the silt, and straw should be added on top of the cages for coverage, with operations reduced as much as possible to ensure safe overwintering.
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Key technical points and precautions for transplanting licorice
Generally, it is done in late autumn or early spring. In late autumn, before the land freezes; in early spring, around Qingming Festival, and no later than mid-April. The transplanting field should be prepared on the basis of autumn plowing from the previous year by making beds (bed width depends on a row spacing of 50 cm and how many rows are planted in the bed), then applying fertilizer. Dig up the seedlings grown the previous year after the ground at the field corners thaws, remove the aboveground parts and the lower growing points, and set them aside for use. In the prepared field, open furrows at a row spacing of 50 cm, 12 cm deep, then place the seedlings flat at the bottom of the furrow, with the heads placed obliquely toward the inner slope, at a slope of 10 degrees. When placing the seedlings, 2 rows
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