-
Rearing Methods and Processing Techniques for Medicinal Stiff Silkworm
At present, the demand for medicinal stiff silkworm in the Chinese medicinal materials market is growing, and rearing and processing it is profitable. Its rearing and processing methods are: 1. Rearing of mature silkworms. Rearing and processing medicinal stiff silkworm should be carried out professionally in non-cocoon-producing areas, so as to avoid a devastating impact on cocoon silkworms. Rearing and processing can be carried out throughout the year. As for the feed given, apart from a small amount of mulberry leaves, more evening primrose, sword silkworm grass, white clover, cup plant and other substitutes for mulberry leaves can be added, to supplement the shortage of mulberry leaves and reduce rearing costs. For mature silkworms
-
Detailed Explanation of the Occurrence Patterns and Control Methods of the Jujube Inchworm
The jujube inchworm, also known as the jujube spanworm, dingmenchi, or gongyao worm, belongs to the order Lepidoptera, family Geometridae, and is one of the major pests of jujube leaves. I. Occurrence Patterns The larvae damage the tender buds, leaves, and flower buds of jujube. It has 1 generation per year, overwintering as pupae in the soil 10-15 cm deep around the tree canopy. In early March of the following year, they emerge as adults. After mating, they lay eggs. The female adults are wingless and must crawl up the tree trunk to lay eggs. After an egg stage of about 22 days, from late March to early April, the larvae hatch and climb up the tree to cause damage. Larvae in the 1st to 3rd instars have a small appetite and mainly feed on tender leaves.
-
Symptoms and Prevention and Treatment Methods of Swine Lungworm Disease
Swine lungworm disease mostly occurs in low-lying, damp areas and during summer and autumn, showing endemic prevalence. It mainly harms piglets, affecting their growth and development and reducing meat quality. Severe infection can cause pneumonia and lead to death. Symptoms: When pigs have a mild infection, there are no symptoms or they are not obvious; with severe infection, the symptoms are pronounced. More than one month after infection, pigs show symptoms such as paroxysmal coughing, thick yellow mucus flowing from the nose, rapid breathing, pale conjunctiva, reduced appetite and weight loss. Some die of suffocation because the worms block the trachea.
-
Silkworm droppings work well as rabbit feed, and rabbit farmers should give them a try
Silkworm droppings have high nutritional value, with a crude protein content of 15.4%, second only to wheat bran and higher than rice bran and green grass, making them an excellent feed for livestock and poultry. Feeding silkworm droppings to livestock and poultry often produces very good results. 1. Feeding silkworm droppings to pigs can save large amounts of concentrated feed; pigs gain weight quickly per unit of time and have a high marketable rate. After sows eat silkworm droppings, milk secretion increases. 2. Feeding silkworm droppings to sheep increases the amount of milk secreted and yields more wool; sheep wool length can reach more than 14 cm. 3. Feeding silkworm droppings to cattle can make
-
Introduction to the Characteristics of the Shaan Silkworm No. 2 Silkworm Breed
Breeding unit: Shaanxi Sericulture Research Institute. Approval status: approved by the Shaanxi Provincial Crop Variety Approval Committee in 1981, and recognized by the National Crop Variety Approval Committee in 1994. Variety registration number: GSI1003-l993. Variety source: (122X Su, 5X226X Su6). Characteristics: a four-way hybrid. Strong constitution and easy to raise, high cocoon yield, and relatively good cocoon silk quality. Average neatness is gi.65 points, cocoon silk fineness
-
Successful breeding of new silkworm varieties in Hubei Province
The newly bred silkworm varieties "Ecan 3" and "Ecan 4" were recently awarded the first prize of the Hubei Provincial Science and Technology Progress Award. The robust autumn-use variety Ecan 3, compared with the main autumn-use variety currently promoted in Hubei Province, Huanghe x Zhaoxia: strong resistance, with a unified larval-pupal survival rate of over 92%; high yield, with cocoon production of 33.95 kg per sheet, an increase of 9.94%; excellent silk quality, with a cocoon shell rate of 24.83%, a single cocoon silk length of 1150 m, a reelable silk length of 941 m, and a silk yield of 17.88%, increases of 8-1
-
What to do when silkworms are poisoned? Prevention and control measures for silkworm poisoning
First, ensure safe feeding: do not feed "four-side mulberry" (mulberry from the edges of fields), test mulberry leaves before feeding, and only use large quantities of leaves after confirming they are non-toxic. Mulberry trees with pesticide residues should be sprayed 1 to 2 days in advance with 0.5% edible alkaline water or 1% fresh limewater, or mulberry leaves can be soaked for 1 hour in 1% edible alkaline water or 1% fresh lime slurry. Note that the sprayer must be thoroughly cleaned, and the edible alkaline water or fresh limewater must be applied generously (about 6-8 buckets per mu). If silkworms are found to have been poisoned, promptly take detoxification measures: immediately scatter burnt ash or lime powder so the silkworms stop
-
The function and application method of the automatic mounting-cluster agent for ripe silkworms
(1) Brief introduction "Automatic mounting-cluster agent for ripe silkworms" is a new type of silkworm medicine that promotes uniform maturity of silkworms and automatic mounting of ripe silkworms onto clusters; at the same time, unripe silkworms, diseased silkworms and weak silkworms do not climb onto the clusters, improving cocoon quality and reducing the rate of inferior cocoons. (2) Advanced nature of the technology "Automatic mounting-cluster agent for ripe silkworms" passed appraisal organized by the Guangdong Provincial Higher Education Bureau in 1993, and experts unanimously considered that the result reached the domestic leading level. In China, molting hormone is used to make silkworms mature uniformly; when they are ripe, they are picked up one by one by hand and placed on clusters, or unripe and ripe silkworms are picked up together with both hands and placed on clusters.
-
Introduction to the Characteristics of the Silkworm Variety Shaan Silkworm No. 3
Breeding institution: Shaanxi Sericulture Research Institute. Approval status: approved by the Shaanxi Provincial Crop Variety Approval Committee in 1987, and recognized by the National Crop Variety Approval Committee in 1994. Variety registration number: GSIlop4-1994. Variety source: (122x795)x(226x796). Characteristics: high-yield type, high silk content, Chinese-strain single-sex-limited four-way hybrid, relatively high reproduction coefficient, large silkworm body, large mulberry consumption at the 5th instar, large cocoon shape
-
How to prevent and control swine lungworm disease? Prevention and control methods every pig farmer must read
Swine lungworm disease is a helminthic disease caused by Metastrongylus nematodes parasitizing the bronchi and bronchioles of pigs. It is highly harmful to pigs, often causing bronchitis and even pneumonia, and is prone to complicating with pulmonary infectious diseases such as swine pasteurellosis and swine enzootic pneumonia. It often occurs as an endemic disease, mostly infecting pigs when they eat earthworms containing infective larvae. One month after infection, piglets mainly develop coughing, especially obvious when exercising in the morning and evening or when encountering changes in external temperature. Sometimes purulent mucus flows from the nostrils, and there are eye secretions. The appetite of sick pigs is generally normal, but growth and development stagnate, and they gradually become emaciated.
条件筛选