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Methods for Castrating Male Xiang Pigs in Xiang Pig Farming
Castration of Xiang Pigs. For any male or female Xiang pigs not kept for breeding, in order to make their temperament docile, facilitate group raising and improve meat quality, castration (neutering) surgery can generally be performed between 2.5 and 3 months of age. ① Castration methods for male Xiang pigs. Castration of male Xiang pigs should generally be done early rather than late, and the surgery can be performed between 15 and 30 days after weaning. Castrating at too young an age hinders normal growth and development; castrating at too old an age increases the difficulty of the surgery. After 15 days post-weaning, Xiang pigs have basically adapted to the new environment, and a day with clear weather and no strong wind can be chosen for the surgery.
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Prevention and Treatment Methods for Dangerous Epidemic Diseases in Deer Farming
Type 5 disease, also known as this disease, spreads rapidly and is highly harmful. The prevention method is injection of bovine foot-and-mouth disease type O vaccine, but injection of the vaccine in female deer can easily cause miscarriage, and in deer already latently infected it can easily trigger an outbreak of this disease. Therefore, if this disease has already occurred in a certain deer herd, injection of this vaccine should be done with caution.
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How to raise foxes? Five-stage feeding method teaches you to raise foxes well
Scientific fox farming should be based on raising excellent breeds. The level of reproductive capacity and the quality of daily feeding management are the key links determining the size of breeding benefits. The following introduces the five-stage feeding method for reference by fox farmers. On the premise of selecting excellent fox breeds, attention should be paid to
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Alpaca Farming Techniques and Daily Feeding Management Methods
Feeding Alpacas: According to the different ages in months, sexes, growth stages, seasons, grazing pastures and feeding conditions of alpacas, on the basis of grazing and feeding green roughage, supplementary feeding is carried out with a mixed concentrate of a complete-price daily ration formulated from corn, wheat, soybean meal, bran and other ingredients. For breeding male
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What are the methods for preventing and treating swine fever in wild boar farming
Swine fever, also known as hog cholera and commonly called rotten intestine plague, is an acute, febrile, contagious infectious disease caused by the swine fever virus, mainly transmitted through the digestive tract, and pigs of different ages and breeds can be affected in all four seasons. The swine fever virus has strong resistance to the external environment, and people and livestock that come into contact with diseased pigs
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Feed formulation methods for meat dog breeding
1. Feed formulas 1. Nursing dogs: taking the daily feed amount for 10 nursing dogs as an example: 850 grams of animal meat or offal, after grinding with a meat grinder add 3 eggs, 500 grams of cornmeal, 850 grams of chopped green vegetables, an appropriate amount of growth hormone (use according to the instructions), add a small amount of concentrated bone
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Introduction Methods and Technical Key Points for Breeding Snakes
The quality of snake introduction for breeding affects the survival rate and reproductive capacity of the snakes. To obtain breeding snakes, one may, after approval from the relevant management department, go into the wild to catch snakes oneself; if local snake resources are scarce, breeding snakes need to be introduced. 1. The best season for introduction is spring and autumn. In spring, the weather
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Detailed explanation of large-mouth catfish farming technology, master the methods of catfish farming
I. Biological characteristics The large-mouth catfish is one of the fastest-growing and largest species among fish of the order Siluriformes, family Siluridae. Common individuals weigh 5-10KG, and the largest individuals reach 60KG. Its head is wide and somewhat flat, its eyes are small and its mouth is large, hence the name large-mouth catfish. Its upper and lower jaws are densely covered with fine teeth that curve inward like barbs, making it extremely difficult for prey to escape once bitten. Adult fish have two pairs of barbels, of which one pair of maxillary barbels is very long, while the other pair of mandibular barbels is very short and often hard to notice, but in the juvenile stage there are 3 pairs of barbels. Its dorsal fin is short and small, clustered, with no hard spines; the pectoral fin has a thick, sturdy hard spine with no obvious serrations on the outer side, but it feels rough to the touch; the anal fin is extremely long and connected to the caudal fin; the caudal fin is small, concave in the middle, and the upper lobe is longer than the lower lobe. The body color of the large-mouth catfish varies with the environment and the type of food. The back and sides of the body are mostly yellowish brown, bluish gray, or yellow-green, while the belly is grayish white, mixed with black spots, but without cloud-like patterns, and all fins are grayish black.</p><p></p><p>I. Pond main culture</p><p>1. Fingerling stocking To increase the survival rate and improve farming benefits, the large-mouth catfish fingerlings stocked must be above 8cm and uniform in size. For stocking density, stock 1000-1500 fish per mu at the 8cm-10cm size; stock 800-1200 fish per mu at the 10cm-12cm size, and polyculture 100-120 large-size silver carp and bighead carp fingerlings of 150g-250g in the pond to regulate water quality. 2. Feed feeding The large-mouth catfish is a carnivorous fish, mainly using live fish or chilled fresh fish and animal viscera as bait, but it can also be trained artificially to eat artificial compound feed. (1) Carnivorous bait: when stocking large-mouth catfish fingerlings, correspondingly stock slightly smaller carp, crucian carp and other fingerlings. Each day, still mainly use chilled fresh fish chunks, and pig lungs, cattle lungs and other animal viscera can also be fed. When these animal feeds cannot be guaranteed, artificial taming for feeding can be used to make them eat artificial compound feed, which can achieve relatively good results. (2) Artificial compound feed: the protein content of the compound feed is 41%-50%. When feeding, set up (2-4) feeding tables in each pond to make it easier to observe feeding conditions. 3. Daily management Patrol the pond 3 times a day in the morning, noon and evening to observe fish feeding and growth conditions, change the water once every 5d-7d, strictly prevent the large-mouth catfish from floating to the surface, and take corresponding preventive measures. II. Pond polyculture In adult fish ponds, broodstock ponds, or large lakes and reservoirs with abundant wild trash fish, depending on the abundance of forage fish, polyculture 15-30 large-size large-mouth catfish fingerlings of 8cm-10cm per mu. Without increasing feed input, without requiring special management, and without affecting the main cultured fish, 30kg-50kg of marketable large-mouth catfish (individual weight 1.5kg-3.5kg) can be produced in the same year. The technology for polyculturing large-mouth catfish in adult fish ponds is simple, with low input and high returns, but in production attention should be paid to: large-mouth catfish cannot be polycultured in the same pond with carnivorous fish such as mandarin fish and snakehead, and smaller-size large-mouth catfish cannot be stocked for polyculture; the size is best above 8cm.</p><p>III. Cage culture</p><p>1. Cages According to fingerling size, equip three types of cages with different mesh sizes: first-level fingerling cages, second-level fingerling cages, and adult fish cages. First-level fingerling cage: mesh 0.6cm-0.8cm, size 4mx4mx2m or 5mx5mx2m, single-layer warp-knitted knotless polyethylene open-top cage; second-level fingerling cage: polyethylene knotted open-top cage with mesh 1cm—1.5cm, size 4mx4mx3m or 5mx5mx3m; adult fish cage: mesh 2.5cm-4cm, size 4mx4mx3m or 5mx5mx3m double-layer polyethylene knotted closed cage. 2. Fingerling stocking Large-mouth catfish used for first-level stocking are most suitably stocked in early to mid-May each year. For stocking density, stock 500-600 large-mouth catfish fingerlings per m2 at the 4cm-5cm size. After 15d-20d of rearing, divide them by size into separate cages for rearing. At the 8cm-10cm size, stock 350-450 fish per m2. When they reach above 15cm, promptly transfer them to second-level cages and stock 250-300 fish per m2. When the fingerlings reach about 25g, transfer them to adult fish cages and stock 40-60 fish per m20.</p><p>3. Feed feeding In cages, feeding tables are set up to make it easier to observe fish feeding conditions and ensure full use of the feed. Generally, set up 1 feeding table per 1Om2, suspended inside the cage 20cm—30cm above the cage bottom. When the total length of the large-mouth catfish is 5cm-10cm, the daily feeding rate is 8%-10% of fish body weight; at total length 10cm-20cm, it can be adjusted to 4%-6%; when total length is above 20cm, the feeding rate is 1%-3%. Feed three times daily in the morning, afternoon and evening. Among these, slightly increase the feeding amount in the evening. The bait can mainly be wild trash fish, chilled fresh fish, and animal viscera, and artificial compound feed can also be fed through artificial taming. The method is: after the fingerlings enter the cage, first stop feeding for 1d-2d to make them feel slightly hungry, then each day place a small amount of attractant on the feeding table and slowly feed artificial compound feed. As the fish adapt to the artificial compound feed, correspondingly reduce the amount of attractant until the large-mouth catfish completely adapts to eating artificial compound feed. (1) Fingerling-stage feed formula: fish meal 42%, a-starch 15%, soybean meal 10.9%, peanut kernel meal 18%, yeast powder 3.3%, scallop powder 5.2%, fish oil 3.1%, premix 2.5%, crude protein content 35%. (2) Adult-fish-stage feed formula: fish meal 25%, wheat middlings 18%, soybean meal 18%, peanut kernel meal 18%, yeast powder 5%, fish oil 1.1%, corn 10.4%, compound amino acids 2%, premix 2.5%, crude protein content 35%. 4. Rearing management During the fingerling cultivation stage, cage sorting and screening should be done well. Regular cage sorting is a key measure to increase fingerling survival rate. Generally, during the fingerling stage, sieve all fish once every 15d-20d and rear them in separate cages by size. At 8cm-10cm, transfer them to second-level fingerling cages; when they reach about 25g, they can be put into adult fish cages for rearing. In daily rearing, the large-mouth catfish has sharp mouth teeth. When bait is insufficient or when it feeds on bait beside the cage, it easily bites through the netting. Usually, regularly check the cages for damage, regularly clean the feeding tables, ensure unobstructed water flow inside and outside the cages, regularly check the bait condition on the feeding tables, remove spoiled and deteriorated residual bait, and appropriately increase or decrease the feeding amount according to how much bait remains.</p>
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Prevention and Treatment Methods for Carp Pox Disease in Crucian Carp Farming
In recent years, the farming structure in my region has generally been dominated by crucian carp as the main species, and the incidence rate of crucian carp diseases has also appeared increasingly high. Carp pox disease in crucian carp, which almost never occurred in the past, now also occurs from time to time. This disease generally occurs after late autumn, and rarely causes fish death,
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How to Save Feed in White Shrimp Farming
In farming white shrimp (Litopenaeus vannamei), pelleted compound feed is generally used. Because this feed is relatively expensive (generally 4000-5000 yuan/ton), feed cost is the main expense, generally accounting for more than 70%. Therefore, reasonably saving feed and reducing the feed conversion ratio in farming is
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