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How to prevent and treat Eubacterium suis infection in pigs? A full analysis of methods and measures
Eubacterium suis (formerly known as Corynebacterium suis) is widely distributed in nature, and most strains are non-pathogenic; only a few are pathogenic and can cause acute or chronic infectious diseases in humans and animals. It is generally characterized by purulent or caseous pathological changes in certain tissues and organs. Clinically, it mainly causes urinary tract infections in sows. Pathogen and epidemiological characteristics: Eubacterium suis is a pleomorphic large bacillus. It ranges from spherical to rod-shaped, and the longer bacterial cells are swollen at one or both ends into a club shape, occurring singly or arranged in palisades or clusters. It is Gram-positive, with no flagella, capsule
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How to prevent and treat avian encephalomyelitis? A full analysis of the key methods
Avian encephalomyelitis (AE) is an infectious disease of chicks caused by the avian encephalomyelitis virus, mainly affecting the nervous system, also known as epidemic tremor. Its main features are that affected chicks show ataxia, tremors of the head and neck muscles, leg paralysis, and paralysis; laying hens show a drop in egg production rate. I. Symptoms 1. Chicks. In the early stage of the disease, affected chickens are depressed and slow to respond; subsequently, some diseased chickens gradually develop ataxia and are unwilling to move; or they walk with an unsteady gait until they cannot stand; both hock joints rest on the ground, both wings are spread and drooping to the ground, and they barely flap their wings
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New black sesame variety successfully cultivated in Hebei
Recently, a new black sesame variety, "dual-purpose oil and food Jiheizhi No. 1," the black sesame variety with the highest oil content in China, successfully cultivated by the Hebei Provincial Institute of Cereal and Oil Crops, passed provincial appraisal. This variety combines high quality, high yield, and disease resistance, and effectively resolves the contradictions between high yield and high quality, and between high yield and disease resistance in black sesame.
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What Is the Dog Birth Process Like? A Detailed Guide to the Full Whelping Process in Female Dogs
Dogs are polytocous animals, and because breeds differ, the number of puppies per litter also varies. Generally, small breeds have 1-4 puppies per litter, at most 6. Medium and large breeds usually have 6-9, at fewest 1-2, at most 12-13, and the recorded maximum is 25. Whelping in dogs occurs through contractions of the uterus and the abdominal wall muscles and diaphragm, which push out the fetuses and their associated tissues. The contractions of the uterus come in waves, with intervals, so uterine contractions are usually called "labor pains." The contractions of the abdominal wall muscles and diaphragm are called "straining." Stra
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What are the latest rice breeding technologies? A full analysis of the world's cutting-edge methods
Research on salt-tolerant rice breeding The aims of this research are: 1. To enable new salt-tolerant rice to adapt to cultivation in saline-alkali land. 2. To make full use of seawater irrigation when freshwater is scarce. Abroad, there have been reports of salt-tolerant crops such as tomato, melon and barley. Salt-tolerant rice bred by the University of Sussex in the UK can grow vigorously in the field, but the complexity of regulating salt content in the field must be recognized. Research on genetic engineering of salt-tolerant rice is quite active in the UK. Researchers insert genes from salt-tolerant rice into rice,
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Potato Harvester Successfully Developed, Mechanized Harvesting Realized
On July 17, at the provincial potato mechanized planting and harvesting on-site demonstration meeting held in Xiazhaizhai Village, Nianbo Town, Ledu County, Qinghai Province, it was observed that a single-operator potato harvester produced and developed by a provincial private enterprise completed the potato harvest of a 8-fen plot in less than 40 minutes, equivalent to a whole day's workload of 10 laborers, while the machine's selling price was less than 1500 yuan. The staff of the Qinghai Provincial Agricultural and Animal Husbandry Machinery Extension Station distributed and promoted 40 such potato harvesters with an operating efficiency of 1.2 mu per hour to 20 grassroots stations on site.
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Full Analysis of the Key Technical Points for Lotus-Rice-Fish Integrated Farming
"Lotus-rice-fish" integrated farming refers to a co-culture model in which both rice is planted and fish are raised during the growing period of lotus root. The relevant integrated farming techniques are briefly introduced below. 1. Reasonable site selection. Choose gray mud fields with sufficient water sources, strong water retention capacity, and medium or above fertility. Fields with water-quality concerns, cold-waterlogged fields, and perennial lotus fields are not suitable for selection. 2. Select improved varieties. For lotus seeds, choose excellent varieties with large grains, a long flowering period, and high yield; for rice, it is advisable to choose early-maturing or early-to-medium-maturing varieties, such as Minke Zao No. 8, Zhefu 218, etc.; for fish, mainly stock common carp.
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What to Do About Soybean Flower and Pod Drop? A Full Guide to Prevention and Control Measures
Soybean flower and pod drop is a major factor affecting yield. Under ordinary cultivation conditions, the number of dropped flowers and pods can account for more than 50% of the total number of flowers, and in severe cases up to 70%. Soybean flower and pod drop is mainly caused by internal physiological imbalance in the plant and adverse external environmental conditions. Based on practical experience in our area, the following measures can be taken to prevent soybean flower and pod drop: 1. Apply more phosphorus and potassium fertilizer, and appropriately top-dress with nitrogen fertilizer and micronutrient fertilizer. Applying more phosphorus and potassium fertilizer to soybeans can reduce flower and pod drop and promote full grains. Therefore, on the basis of applying sufficient base fertilizer, at sowing time for every 66
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Full Analysis of the Key Cultivation Techniques for Schisandra chinensis
Schisandra chinensis, also known as northern schisandra. It is a perennial deciduous woody vine of the family Magnoliaceae. It is mainly produced in the three provinces of Jilin, Liaoning and Heilongjiang. The quality of the product from Jilin and Liaoning is the best, and it has long been known as "Liao Wu Wei". The ripe fruit is used as medicine. 1. Propagation methods. Wild Schisandra chinensis, apart from seed propagation, mainly reproduces by underground creeping stems. In artificial cultivation, cuttings, layering and seed propagation are mostly used, but rooting is difficult, and the conditions required for treatment are not easy to control, so none are as good as seed propagation. The seed propagation method is simple and easy to carry out, and can
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What Types of Physiological Deformities Occur in Mushrooms? A Full Analysis of Common Types
Mushroom deformities are mostly triggered by temperature differences or unfavorable environmental conditions; they may also be related to the strain used. The common deformed mushrooms mainly include the following types: 1. Hollow stipe. From the outside the mushroom looks normal, but when the base is cut off, part of the stipe is found to be hollow, usually with a ring-shaped cavity around a hard core. Afterwards, the cut surface of the stipe may split and curl backward, making the mushroom poor in appearance and reducing its marketability. Cause: This is mainly caused by low air humidity during the fruiting period, rapid evaporation of water from the mushroom body, and overly dry casing soil,
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