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How to prevent fish from gasping at the surface? A detailed guide to practical and effective measures
Discharge an appropriate amount of pond water and add fresh water; the suitable time for adding water is around 2-3 p.m. Use aerators reasonably, stop fertilizing, and control fish feeding. Splash quicklime water in small amounts several times to adjust the pH of the water body. Use chlorine dioxide twice in succession to disinfect the water body; before disinfection, an appropriate amount of oxygen enhancer and microecological preparations may be applied.
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How to tell male from female yellow catfish? A few practical methods
Yellow catfish, commonly known as geyayu, is a fish native to this area. It is a widely distributed bottom-dwelling fish, and its reproduction rate and yield in Nansi Lake are second only to crucian carp in catch volume. The yellow catfish has a yellowish-brown body, with a large hard spine on the back and tail respectively, a large head and a wide mouth. It grows rather slowly; in the 1950s the largest individuals reached more than 200 grams, close to half a jin. After the 1980s, because of excessive catching, its body weight gradually decreased; common individuals are about 15 cm long and weigh around 80 grams, while female yellow
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How to prevent and treat duck hepatitis? Introduction to practical prevention and treatment methods
For the prevention and control of this disease, according to the characteristics of the disease, the focus should be placed on environmental sanitation control and immunization of breeder ducks, among other aspects. (1) Environmental sanitation control: This disease can be prevented by strict isolation measures. Ducklings under 4 weeks of age are susceptible to DHV, so raising ducklings within 4 weeks of age in isolation to prevent DHV infection can effectively control the occurrence of DHV. Implementing strict disinfection is an important measure to prevent this disease. Before each batch of ducklings enters the duck house, the duck house should be sprayed and disinfected with a 5% sodium hydroxide aqueous solution, etc., and personnel entering and leaving should take disinfection measures. Once this disease breaks out, isolation should be carried out immediately and the duck house should be thoroughly disinfected.
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What are some practical tips for box cultivation of Gastrodia elata?
(1) Box specifications: a wooden box with a length of 60 cm, a width of 40 cm, and a height of 30 cm is usually used as the container, with handles installed at both ends of the box for easy carrying. (2) Filling and planting: first lay a piece of plastic film larger than the surface area of the wooden box inside the box, then spread a layer of a mixture of river sand with 45% humidity, humus soil, and sawdust on the film, then at intervals of about 5 cm, place one piece of fresh wood and one piece of fungal wood alternately in the box, fill the gaps with the mixture so that the fresh wood and the fungal bed are in a semi-buried state. Between the fungal wood and the fresh wood, at intervals of 8
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How to store fresh mushrooms so they keep longer? Practical preservation methods to share
1. Salt water soaking: Remove all debris from the base of the fresh mushrooms, soak them in 1% salt water for 10-15 minutes, take them out and drain off the water, then put them in a plastic bag; they can be kept fresh for 3-5 days. 2. Clean water soaking: Wash the fresh mushrooms, put them in a container, and pour in clean water to submerge the mushrooms. If the mushrooms float, you can press them down with a weight. This method is suitable for short-term storage. Be careful not to use an iron container, so the fresh mushrooms do not turn black. If the quantity is large, you can dry the fresh mushrooms in the air for a while, then put them into a non-iron container, one layer of fresh mushrooms sprinkled with
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How to easily diagnose pigeon diseases? Practical methods you can learn at a glance
1. Look at body posture. Sick pigeons are mostly in poor spirits, inactive, isolated from the flock, with ruffled feathers, dull eyes, rapid breathing, wheezing or abnormal sounds from the throat and trachea during breathing, reduced appetite or no eating, excessive drinking, or failure to feed squabs, etc. 2. Look at the eyes. Pigeons suffering from ornithosis, paratyphoid, ophthalmia, mycoplasmosis, and vitamin A deficiency have red, swollen, inflamed eyes with increased discharge. Those with conjunctivitis have congested conjunctiva and dilated blood vessels. With erysipelas or pneumonia, the conjunctiva is bluish-purple. With anemia or malnutrition, the conjunctiva is pale. With organophosphate pesticide poisoning,
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How to prevent fish from oxygen deprivation in winter? These practical methods you need to master
In winter, although the feeding activity of fish in ponds decreases, they still need a certain amount of dissolved oxygen to maintain slow breathing. The dissolved oxygen in a pond mainly comes from the photosynthesis of phytoplankton and the direct dissolution of oxygen from the air into the water. However, in the cold winter, once the pond surface freezes over, oxygen from the air cannot dissolve into the fish pond. When heavy snow covers the ice surface, sunlight cannot shine directly into the pond water, and the green plants in the water cannot carry out photosynthesis to produce oxygen. Moreover, in winter most fish gather at the bottom of the water. If the water quality is poor, the fish are weak, and management is poor, it can easily cause fish to suffocate and die from lack of oxygen.
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How to Rescue a Falsely Dead Piglet? A Detailed Guide to Practical First Aid Methods
When a piglet just delivered by a sow has obstructed or stopped breathing but its heart is still beating, it is in a state of false death. If not rescued in time, true death may occur. Using the "umbilical cord pinching method" to rescue falsely dead piglets offers a relatively high chance of revival. Main method: first clear the mucus from the nasal cavity of the falsely dead piglet, place the piglet on a soft mat with its head slightly elevated, cut the umbilical cord 3-5 cm from the body, then pinch the end of the umbilical cord tightly with one hand and squeeze it toward the base of the cord. Do this 10 times per minute, repeating without interruption. Under normal circumstances,
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How to Identify Real vs. Fake Gastrodia elata? A Few Practical Methods for You
"Parrot beak, concave navel, ringed dots and dried ginger skin outside, remember the rosin-like cross-section." This is the mnemonic for identifying real vs. fake Gastrodia elata. In this mnemonic, the rosin-like cross-section is an important basis for judging the authenticity of Gastrodia elata: it is long-oval, slightly flattened, wrinkled, sometimes curved. One end has a residual stem base or a reddish-brown withered bud (called the parrot beak), and the other end has a round navel-shaped scar (commonly called the concave navel). The outer skin is pale yellow or earth yellow, slightly transparent or opaque, with horizontal ring lines formed by dot-like protrusions. The texture is hard, not easy to break, and the cross-section is slightly flat and horny. The taste is slightly pungent and sweet, and when chewed it is crisp
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Practical Techniques and Experience Sharing on Lingzhi (Reishi) Bonsai Shaping
1. The caliber of the cultivation container controls the density of the fungal branches. If a large-capacity, wide-mouth bottle of 1000 ml to 3000 ml is chosen, the fungal branches will mostly form clusters of lingzhi (reishi), resembling swirling colorful clouds; if an infusion bottle is used for cultivation, it will mostly produce single branches with long stems, and a single-stemmed lingzhi symbolizes the ruyi scepter; if a canning jar is used for cultivation, two lingzhi can be kept and tied together to form mandarin-duck lingzhi, the best gift for newlyweds. 2. Oxygen-controlled shaping. Place lingzhi that has already formed a cap but has not stopped growing into a poorly ventilated container (such as a vat or bucket) to promote the appearance of a proliferated layer beneath the cap. From
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