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What are the harmful symptoms of mushroom wet bubble disease?
Long-term research has found that this pathogen infects only the fruiting bodies and not the mycelium. It takes about 11 days from the start of infection for a mushroom to show initial symptoms, and growing mycelium can accelerate the germination of Mycogone perniciosa spores. When the first flush of mushrooms is affected, the source of infection is usually the casing soil and old mushroom shelves; when later flushes are affected, it is caused by re-spread through water, tools and human operations: infection during the pinhead formation stage is shown by: before normal mushrooms appear, diseased mushrooms grow in large numbers, and diseased mushrooms generally fruit 3-4 days earlier than normal mushrooms; if infection occurs during the young pinhead growth stage, although the diseased mushrooms continue to grow, the caps develop abnormally or stop developing, the stems swell, become deformed and deteriorate, and appear twisted and misshapen. In the later stage the diseased mushrooms are hollow inside, and white cottony mycelium grows at the junction of the cap and stem and at the base of the stem, later turning dark brown and exuding brown liquid as it rots, giving off a foul odor.
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A Detailed Explanation of the Harm of Mycotoxins to Pigs and Prevention Methods
After pigs eat corn contaminated with mycotoxins, symptoms such as stunted growth and development, reproductive disorders (dead sperm, infertility, stillbirth, etc.), emaciation, and reduced disease resistance appear, causing relatively large economic losses to pig production. To make it easier for breeders to judge and prevent and control the problem in time, the symptoms of poisoning by different mycotoxins and their prevention measures are introduced below. I. Harm of mycotoxins to pigs 1. Aflatoxin. It is the most harmful toxin in pig production. (1) It is the strongest immunosuppressant. After pigs eat feed contaminated by it, the immune system is first
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Detailed Explanation of the Harm, Clinical Manifestations and Prevention and Treatment Methods of Heat Stress in Chickens
(1) Heat tolerance of chickens. Because chickens have physiological characteristics such as high body temperature, vigorous metabolism and no sweat glands, their ability to tolerate high-temperature environments is low, so high temperature becomes the most harmful stress factor among chicken stressors. According to relevant measurements, for laying hens raised in China, the optimal digestion temperature is 21-24°C, the optimal laying temperature is 15-20°C, and the relative humidity is 60%-65%. When above 28°C, egg production declines, and for each 1°C rise, heat dissipation decreases and feed intake drops by 1.6%; at around 30°C it drops by 3%-
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The harm of influenza virus during bovine pregnancy must not be ignored
Bovine influenza is an acute febrile infectious disease, characterized by strong transmissibility, rapid spread, fast progression, and a fierce onset. As long as one cow in the herd is infected, most cattle will be infected and fall ill within a short period, especially during the spring and autumn seasons when the climate changes drastically and cold and heat fluctuate greatly, when the incidence rate is higher. Unsanitary, cold and damp cowsheds, poor feeding and management, exposure to wind or the shock of drinking cold water, and a decline in the cattle's resistance all make influenza more likely to be triggered. According to statistics, during the winter and spring influenza epidemics in Muling City, Heilongjiang Province over the past two years, the incidence rate among dairy cows reached 1
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The Poetry and Floral Charm of Apricot Blossoms: Experiencing the Beauty of Spring Flower Viewing
The messenger of wine. In the third month of spring, with gentle breezes and bright sunshine, pink peach blossoms and white plum blossoms stir the soul. The cultivation of apricot blossoms can be traced back to the Warring States period. "During the Qingming season, the rain falls thick and fast; travelers on the road look as if their souls will break. I ask where a tavern can be found; a shepherd boy points far off to Apricot Blossom Village." Where exactly Apricot Blossom Village is has long been debated. One account places it in Fenyang, Shanxi; another places it at Phoenix Terrace in Jinling; and there is also Apricot Blossom Village in Guichi, Anhui, with a stretch of apricot groves extending for ten li around. When the lovely spring month of March arrives, "on the apricot branches the spring wind settles; for ten li the misty village is all one red" - this is one of the ten famous sights of Guichi.
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Harm and Control Methods of the White Peach Scale
Distribution area: Morphological characteristics: The female adult is orange-yellow, broadly oval, with a body length of 1-1.3 mm; the body surface is covered by a scale cover, which is 2-2.5 mm long, grayish white, nearly circular, convex on the back, with the shell point yellowish brown. The male adult is 0.65-0.7 mm long, orange, with grayish white wings. The male scale cover is about 1 mm long, grayish white, long cylindrical, with 3 ridges on the back; the shell point is orange-yellow and located at the front end. Eggs are oval, orange. Nymphs are flat and round, orange.
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Swine enzootic pneumonia causes great harm, and these prevention and control measures must be kept firmly in mind
Swine enzootic pneumonia is a serious swine infectious disease with high morbidity and low mortality that drives up costs and reduces profits in the pig industry. In China, for slaughter pigs of the same 100 kg, pigs infected with this disease suffer a loss of 119 yuan more than uninfected ones. Infection with Mycoplasma alone rarely causes death in pigs, but when other bacteria are also involved, it leads to a long course of disease, difficult treatment, reduced production levels, and possibly a certain mortality rate. Mycoplasma hyopneumoniae is present in the lungs of 80-90% of pigs, and more than 90
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What are the pharmacological effects of lily? A comprehensive analysis of its medicinal value
[Source] The dried fleshy scales of Lilium lancifolium Thunb., Lilium brownii F.E.Brown ex Miellez, or Lilium brownii F.E.Brown ex Miellez var. viridulum Baker, plants of the genus Lilium in the family Liliaceae. The first is commonly called "Longya lily" and the latter two are commonly called "Su lily". [Original plant] 1. Lilium lancifolium is a perennial herb, with a bulb nearly broadly spherical, 4-8 cm in diameter; scales fleshy, broadly ovate, 2.5-5 cm long, 1.4-2.5 cm wide, white; stem 0.8-1.5 m tall, with purple stripes, covered with white cottony hairs. Leaves alternate, oblong-lanceolate or lanceolate, 5-20 cm long, 0.5-2 cm wide, gradually smaller upward and bract-like, often with bulbils in the leaf axils. Flowers in summer; usually 3-6 flowers arranged in a terminal raceme; pedicels 6.5-9 cm long, purple, with white cottony hairs; flowers nodding, trumpet-shaped, tepals 6, in 2 whorls, lanceolate, recurved, orange-red, with purple-black spots; outer tepals 6-10 cm long, 1-2 cm wide; inner tepals slightly wider, with papillose and fimbriate projections on both sides of the nectary; stamens 6, filaments 5-7 cm long, pale red, anthers oblong, purple, about 2 cm long; ovary cylindrical, 1.5-2 cm long, style slender, stigma 3-lobed. Capsule narrowly oblong-ovate, 3-4 cm long. Grows in moist environments. Distributed in our province and Hebei, Shaanxi, Gansu, Shandong, Zhejiang, Jiangxi, Henan, Hubei, Hunan, Sichuan, Guizhou, Yunnan, Xizang and other provinces and regions. Mostly cultivated. Also distributed in Japan and Korea. 2. Lilium brownii is a perennial herb, with a spherical bulb, 2-4.5 cm in diameter; scales lanceolate, 1.8-4 cm long, 0.8-1.4 cm wide, white; stem 0.7-2 m tall, with purple stripes or small papillose projections on the lower part. Leaves scattered, lanceolate to linear, 7-15 cm long, 1-2 cm wide, smaller upward and bract-like, with 5-7 veins, entire, glabrous. Flowers in May-June; flowers solitary or several arranged in a nearly umbellate inflorescence; pedicels 3-10 cm long, slightly curved; flowers trumpet-shaped, tepals 6, in 2 whorls, fragrant, milky white, slightly purple outside, spotless, spreading outward or with tips curved outward but not revolute, 13-18 cm long; outer tepals 2-4.3 cm wide, apex acute; inner tepals 3.4-5 cm wide, with small papillose projections on both sides of the nectary; stamens 6, filaments 10-13 cm long, curved upward; anthers oblong; ovary cylindrical, 3.2-3.6 cm long, stigma 3-lobed. Capsule oblong, 4.5-6 cm long, about 3.5 cm wide, ribbed, with many seeds. Grows on hillsides, under shrubs, roadsides or by streams. Distributed in our province and the southeastern, central, southwestern and southern regions of China. 3. Lilium brownii var. viridulum differs from Lilium brownii in its oblanceolate to obovate leaves. Grows on hillsides and in rock crevices. Distributed in our province and Gansu, Shaanxi, Henan, Hebei provinces and all provinces and regions from East China and South China to Southwest China. Wild or cultivated.
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What harm does calcium deficiency do to dogs? Every dog owner must know this
If puppies do not get enough calcium, outward flaring of the ribs and deformation of the carpal and elbow joints of the forelimbs can occur; small breeds are prone to "O"-shaped legs, while medium and large breeds can develop severe deformation of the forelimbs. If it is not discovered in time and treated improperly, it can also cause permanent flat paws or lameness. In addition, 2 to 3 months of age is an important period for the formation of the intervertebral discs in puppies. If calcium is deficient at this time, some breeds prone to intervertebral disc disease (such as the Pekingese, Shih Tzu, Pug, Poodle, etc.) will have flare-ups in adulthood, causing lifelong suffering.
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Cutting leaves to feed silkworms has its finer points; seeking advantages and avoiding harm is key
The young silkworm stage (instars 1-3) is a critical period in silkworm rearing. Only careful feeding and scientific management can lay a good foundation for disease-free, high-yield production in the later stages. In rural silkworm rearing, some silkworm farmers, fearing trouble and wanting to save effort, still mostly use whole leaves to feed silkworms during the young silkworm stage, resulting in uneven development of the young silkworms and serious waste of mulberry leaves. (1) Avoiding loss of silkworms: During the young silkworm stage, especially for 1st-instar silkworms, when whole leaves are used, the leftover mulberry leaves that the silkworms have not finished eating often shrivel and curl into tube shapes, wrapping some silkworms inside them, while young silkworms move
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