Aquaculture Lists
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How to optimize the fatness of river crab three management measures for river crab fattening
How to optimize the fatness of river crab three management measures for river crab fattening
2019-01-16 -
Great temperature changes in autumn and a bumper harvest of crops do not allow cattle and sheep to eat five kinds of forage
Great temperature changes in autumn and a bumper harvest of crops do not allow cattle and sheep to eat five kinds of forage
2019-01-16 -
Eating dirt in pig arches is not nonsense.
Pig arch gnawing wood and soil is not playful, it is an abnormal phenomenon, which affects the normal growth and development of pigs. The main reason is that fattening piglets lack of mineral feed for growth, lactating sows and pregnant sows, their own mineral elements are used for the normal growth of lactating piglets and fetuses, and the minerals in the feed are difficult to meet. Second, the feeding is unreasonable, the feeding is less, the food is not full, and the feeding is not watered. Third, sick pigs also have the phenomenon of arch circles gnawing on wood and soil. The first way to prevent it is to pay attention to the proportion of feed and feed ore.
2019-01-16 -
Occurrence and prevention of chicken pecking
Pecking is caused by the lack of some nutrients, metabolic disorder, abnormal taste or improper feeding management. Feather pecking, anal pecking, toe pecking and egg pecking of diseased chickens will not only cause unease in the whole flock and affect the growth rate, but also reduce the grade of commercial broilers, increase the loss of eggs and the mortality of chickens, and cause great economic losses to the production and management of the chicken industry. 1 etiological analysis 1.1 in terms of feeding and management, the feeding density is too high, the activity space of chickens is limited, and the temperature of the chicken house is too high.
2019-01-16 -
Porcine epidemic encephalitis B
An acute zoonotic disease caused by a virus. Pigs suffering from this disease mainly cause abortion in sows and acute orchitis in breeding boars. The pathogen is Japanese encephalitis virus, which is very small and exists in the brain, spleen, blood and swollen testicles of diseased animals. In addition, blood-sucking Aedes mosquitoes and Culex pipiens mosquitoes are the storage hosts of the virus. The virus is so weak that general disinfectants can kill it quickly. [popular] (l) it is often popular in late summer and early autumn, with obvious seasons
2019-01-16 -
Diagnosis and treatment of sudden death of Clostridium welchii in pigs
Sudden death syndrome of Clostridium welchii in pigs, also known as porcine red intestine disease, is a kind of porcine enterotoxemia caused by Clostridium welchii types A, C and D. 1. Symptoms of the disease generally have no premonitory symptoms and show sudden death. It can also be seen that some sick pigs died of mania, ataxia, hoarseness, abdominal swelling, dyspnea, sudden fall to the ground, foaming at the mouth, muscle trembling, limb movement, pale skin, reverse expansion of the horn bow, and died within 1-3 hours. 2. Pathological changes: dead pigs have good fat condition and complete rigor.
2019-01-16 -
Harmfulness of sheep rhinomiasis and its control
Sheep rhinomiasis is a parasitic disease caused by Drosophila nasi parasitic in the nasal cavity and cranial sinus of sheep. In recent years, in the sheep flocks fed by farmers in our area, due to the lack of attention to the prevention and control of rhinosomiasis, the infection rate of rhinomiasis increased rapidly, which affected the normal growth and development of sheep and seriously affected the fattening effect of sheep. Through systematic investigation and observation of prevention and treatment of sheep rhinomiasis in farmers and farms, the author has achieved good results. The report is as follows: 1.
2019-01-16 -
Important role of protein in pig and its additive amount
Protein is the basis of all life and the main component of pig body. According to the research, the protein content in pig body is 15%. It is the basic raw material for all tissues and cells such as muscle, bone, nerve, connective tissue, skin and blood of pig body. It is the main component of skin, hair, meat, milk, bone and hoof, and also an important raw material for bioactive substances such as enzymes, hormones, pigments and antibodies of pig body. When protein in daily diet is deficient, sow is easy to have abnormal sexual cycle, difficult pregnancy, few children, easy abortion and weak birth.
2019-01-16 -
Species of pig parasites
In terms of economy and damage degree, the main parasites that harm live pigs The main parasites can be divided into the following three categories: (1) the less harmful and common parasites include Cysticercus cellulosae, piglet-like nematodes, porcine hair head nematodes (Trichuris suis), porcine echinococcosis, porcine esophageal mouth nematodes (porcine sarcoidosis), Ascaris suum (porcine snail pharyngostoma), porcine giant snout echinococcosis, porcine lice, porcine Eimeria and so on. (2) the serious and widespread parasites include ginger flake worm, Ascaris lumbricoides and pig queen.
2019-01-16 -
Nandan Yao chicken
Origin (or distribution): produced in Nandan County, Guangxi. Main characteristics: it belongs to meat type chicken. Most chickens' main wing feathers, main tail feathers, shins and beak are black, aileron feathers are black and yellow, single crown, iridescent brown and yellow, meat lobes and earlobes are red. The feathers of Roosters are more golden, brown, red, yellow and black, while hens are more black, black and white, and khaki. Weight of adult chicken: 3537 grams for males and 2262 grams for females. Slaughtering rate of adult chickens: semi-clean, male 82.5%, female 90.0%; fully clean, male 77.0%
2019-01-16 -
The microscopic fineness of pigs
Micro fine is the haggling when the price, is the work of meticulous, is never let go of any detail, is not allowed to neglect any place. Every job has details that are easy to be ignored. Pay attention to them and guard against them, and our career is bound to succeed. The specific details in the process of raising pigs are listed as follows: (1) the cost of feed accounts for more than 70% of the cost of raising pigs, and there are many places where feed is ignored. Put aside the bargaining in management, and put aside the technical angle.
2019-01-16 -
Measures to ensure the safety of long-distance trafficking in pigs
In the process of long-distance trafficking, pigs are easily affected by stress factors such as cold and heat, hunger, water shortage, fatigue, crowding, trauma and so on, resulting in massive consumption of nutrients and decline of immunity, resulting in the occurrence of various diseases, which should be prevented. Diseases prone to pigs in transportation 1. Respiratory diseases such as severe colds, bronchitis and bronchopneumonia. two。 Pig digestive function disorder, the occurrence of stomach relaxation, food accumulation and other digestive system diseases. 3. Cause pig dehydration and electrolysis
2019-01-16 -
Key measures for prevention and control of duck disease
1. Do a good job in environmental disinfection. 1. To ensure the disinfection effect, the drugs currently used for environmental disinfection in farms are: aldehydes (formaldehyde, glutaraldehyde), alkaloids (such as fire alkali, quicklime), halogens (chlorine preparations such as bleach, disinfectant king, disinfectant, etc.). Iodine preparations have iodine trioxide), peroxides (such as peracetic acid), quaternary ammonium salts (such as permethrin). Physical cleaning and washing should be done before disinfection to prevent the existence of organic matter (such as feces, urine, pus, blood, body fluids, etc.), and then spray liquid disinfection
2019-01-16 -
In winter and spring, sheep drink warm water
Winter and spring season due to low temperature, if the sheep drink cold water, or even ice ballast water, sheep do not want to drink, will cause sheep drinking water shortage. This not only slows down the digestion process of sheep feed, the metabolism in the body is blocked, and the situation is reduced, but also causes various diseases. Therefore, in the production of sheep must create drinking water conditions to ensure clean and adequate drinking water. If the water temperature of the sheep drinking water is too low, the water should absorb the heat converted from the feed of the sheep itself, which will reduce the utilization rate of the feed. Therefore, the temperature of sheep drinking water in winter and spring should be 20~30℃.
2019-01-16 -
What is good for raising fish and shrimp in the year of the Pig?
In a twinkling of an eye, it is time to release fish fry again. Which aquaculture varieties are promising this year? According to relevant information, the American crayfish, that is, crayfish, is an important edible shrimp and an important bait for fishing. The annual demand for freshwater crayfish in Europe and the United States is 12-160000 tons, with a self-sufficient capacity of less than 30%. At present, great efforts are made to develop the culture and processing of freshwater crayfish, and the international market prospect is very broad. In the domestic market, the consumption of freshwater crayfish is very hot, only in Nanjing, Jiangsu Province, from June to September every year.
2019-01-16 -
The pig is fed with good dry material.
The traditional lean feeding method is not conducive to the growth and development of pigs. Because too much water is added to the food, it will prevent pigs from chewing feed slowly, affect saliva secretion, dilute gastric juice, is not conducive to digestion, and urinate frequently, resulting in extra physiological burden and nutrition consumption. According to the determination, 200 grams of dry material, pigs eat, secrete 335 milliliters of saliva, such as adding 200 grams of water, saliva secretion decreased to 196 milliliters, plus 600 grams of water, saliva secretion is only 115 milliliters. Therefore, if pigs eat thin food, it will seriously affect digestion and absorption and lead to dry meat.
2019-01-16 -
Prevention and treatment of diseases that can easily cause high fever in pigs
(1) Classical swine fever: pig body temperature rises to 40-42 ℃, lasting; loss of appetite or fasting, mental depression, chills, lying like sleeping, squeezing in a pile or drilling grass nest; standing and walking, arch back bending, limb weakness, slow movement, rocking instability, conjunctival redness, purulent secretions, constipation first, and then diarrhea; ear root, abdomen, the inside of limbs and other places have finger pressure colorfast fuchsia bleeding spots. Lesions: systemic lymph node enlargement, peripheral bleeding, red and white mixed marble; lighter kidney color, needle-sized bleeding spots on the surface; splenomegaly, bleeding, edge
2019-01-16 -
Beware of vitamin b deficiency in pigs in winter
Symptoms: vitamin B2 (riboflavin) deficiency, growth retardation, vomiting, skin rash, hair removal and so on. When vitamin B3 (pantothenic acid) is deficient, diseased pigs have poor appetite, poor growth, dysentery, cough, hair loss, movement disorders, especially the "goose step"-like movement posture. Vitamin PP (nicotinic acid) deficiency, diseased pig appetite, weight loss, severe dysentery, skin cracking, covered with black crusts, neurological disorders, anemia. Prevention and treatment: when preparing pig diets, pay attention to the adequate supply of bran and green rich in vitamin B
2019-01-16 -
Prevention and treatment of duck infectious serositis
[Preventive measures](1) Strengthen feeding management to avoid too high density and crowding of ducks; ducks should be all in and out, disinfect empty houses for 2~4 weeks; bedding should be kept as dry as possible. (2) The vaccine for immune prevention of this disease has been used to prevent this disease and the effect is good. Ducklings were immunized with formalin inactivated vaccine prepared from different serotypes of strains once at 2 and 3 weeks of age, respectively, and no disease occurred at 7 weeks of age. However, the vaccine should be used twice, so it is difficult to popularize in field. Escherichia coli and duck plague were also produced
2019-01-16 -
Introduction to the causes and conditioning methods of anorexia in pigs
First, to add a little bit of spicy pigs with loss of appetite, feeding pepper and chili is very effective. Because pepper and pepper contain pungent flavor and aroma, and irritating, pig food can increase gastrointestinal secretions, thus accelerating gastrointestinal peristalsis and improving digestion. In particular, adding a little pepper to the feed of lactating sows can not only increase the feed intake of sows, but also reduce the incidence of piglets and promote early weaning. Second, feed a little more sweet to add the right amount of saccharin to the pig feed, fattening pigs like to eat, fat and strong after eating, lactating sows prefer
2019-01-16