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How do you choose among eight types of turtles? Mastering these selection tips is important
Turtle: The male should have a blackish carapace, a thick, solid tail base, and a long, deep concave plastron; the female should have a short, thick body and a short, thick tail. It is best to choose turtles aged 8 years or older, with the female weighing 350 grams; the male need only have reached the age of gonadal maturity, and the male-to-female ratio is 2:1 to 3:1. Golden coin turtle: When selecting, hold it in your hand and turn it over; its head will extend very long, be even in thickness, and its eyes will move flexibly and look lively. The skin is glossy, the temperament is docile, the gap between the upper and lower shells at the tail is large, and the cloacal opening is broad. Turtles aged 6 years or older are required, with the female weighing 1250 grams to 15
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A new late japonica rice variety Xiushui 110 achieves source-sink optimization through morphological type innovation
Xiushui 110 was bred by the Yao Haigen project team of the Jiaxing Academy of Agricultural Sciences in Zhejiang Province using the hybridization method, with the combination Jia 59 Tianza/Bing 95-13. In 2001 it passed variety approval by the Shanghai Municipal Variety Approval Committee, and in 2002 it passed variety approval by the Zhejiang Provincial Variety Approval Committee. In 2004 it received a post-variety subsidy from the Ministry of Science and Technology and the Ministry of Agriculture for the selection and breeding of new high-quality specialized crop varieties and research on breeding technology. In 2004 it won the first prize of the Zhejiang Provincial Science and Technology Award. 1 Morphological type innovation, achieving source-sink optimization
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Control Methods for Four Types of Diseases in Edible Fungi
1. Brown rot, also known as bubble disease, wet bubble disease, etc. It mainly affects button mushrooms, straw mushrooms, oyster mushrooms, etc. The disease is caused by a fungus called Mycogone perniciosa. The main characteristics are: the conidia and chlamydospores of Mycogone perniciosa only infect the fruiting bodies, not the mycelium. When the fruiting body is lightly infected, the stipe swells into a bubbly deformity, hence the name wet bubble disease. However, at different stages of fruiting body development, the symptoms also differ. When the fruiting body is infected before differentiation, an irregular mass of tissue resembling a hard-skinned puffball appears, covered with a layer of white cottony mycelium, and gradually
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Which breeds are best for meat-type ducks? Two recommended improved hybrid lines
1. Digao duck The Digao duck is a large hybrid-line meat duck developed by the Australian Digao company from introduced Pekin ducks. It was introduced into China in the 1980s. Parent-stock breeder ducks of this breed were raised at the Guangdong Overseas Chinese Farm. In 1987, the Nanhai County breeding duck farm in Guangdong Province introduced parent-stock Digao ducks, and the commercial ducks produced were well received. The Digao duck's appearance is similar to that of the Pekin duck. Ducklings have red-yellow feathers, which turn white after the juvenile plumage is molted. The head is large and slightly long, the neck is thick, the back is long and broad, the breast is wide, the body is slightly long, the breast muscles are full, and the tail is slightly raised, with 2-4 sex feathers
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A Brief Introduction to Common Drug Types for Chickens and Their Usage
The main drugs commonly used for chickens include: antimicrobial drugs, antiviral drugs, anticoccidial drugs, etc. Antimicrobial drugs: commonly used ones such as penicillin, streptomycin, ampicillin, erythromycin, gentamicin, kanamycin, chloramphenicol, sulfonamides, tetracyclines and fluoroquinolones. (1) Gaolimixian and Qianglimixian are 5% erythromycin; Qinlibao and Junbizhi are gentamicin. (2) Baimiejing and Dijunjing are mostly sulfonamides used together with synergists. (3) Norfloxacin, ciprofloxacin
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An Analysis of Common Disease Types in Coral Reef Fish
Signs of infection The fish may rub against hard objects. On close inspection, a fog-like film may be found on the fish's skin, the gills may be inflamed, and affected fish show typical rapid gill movements. Among affected fish, many species of marine fish have been found to suffer from this disease. Details of the infection Oodinium ocellatum is a parasitic single-celled organism known as a dinoflagellate. Careful examination of it requires a microscope with 3000x magnification. Oodinium ocellatum and
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Meat-type Qinglong Dog: A Detailed Introduction to a New Dog Breed
In recent years, dog meat has become very popular in the market, and the dog-raising industry has developed along with it. However, for a long time, although rural households across China have had the habit of raising dogs, they were mainly kept for guarding homes and courtyards, and there was basically no specialized meat-type dog breed. The meat-type Qinglong Dog is a new meat-type dog breed developed by the Meat-Type Dog Improved Breed Breeding Base of the China Agricultural Society and the Jilin Province Meat-Type Dog Research Institute. It is a crossbred breed; its sire line is the Tibetan Mastiff native to Tibet, China, a dog of tall stature and immense speed and power, with a shoulder width of up to 80
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Introduction to Specialty Rice Varieties: Getting to Know Common Types of Specialty Rice
In recent years, the Department of Agronomy at South China Agricultural University has bred several specialty rice varieties, mainly including fragrant rice, fragrant black rice, red zhan rice and others. Their varietal characteristics and key cultivation points are briefly introduced as follows: 1. Wanxianxiangzhan No. 1: Wanxianxiangzhan is a variety bred by crossing Wanlixiang with Jingxian 89, and is an early-season, medium-maturity, high-quality fragrant rice. When planted in the Guangzhou area in the early season, the whole growth period is about 125 days, plant height is 90 cm, plant type is moderately compact and spreading, tillering ability is medium, each panicle has 150-200 grains, it has a certain fragrance, good eating quality, and good late-stage ripening color.
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Classification Methods and Common Types of Rice Bran
Rice is one of humanity's main food grains, and rice is rarely used to feed livestock. What serves as feed is mainly the by-product of processing rice into milled rice - rice bran, whose nutritional value varies greatly depending on the processing method. Due to differences in rice processing methods, rice bran can be divided into rice hulls, rice bran, and rice mill by-product. Rice hulls are the husk (glume) powder removed when rice is processed into brown rice, amounting to about 20% of the rice's mass
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Ligustrum: Arbor-type Market Looks Promising, Shrub-type Prices Fall
Ligustrum is an evergreen tree or shrub of the genus Ligustrum in the family Oleaceae, and is one of the major products in China's landscaping nursery stock market. The common nursery varieties on the market are mainly small-leaf ligustrum, golden-leaf ligustrum, red-leaf ligustrum, etc. The main producing areas for ligustrum nursery stock are the 5 provinces of Hunan, Hubei, Jiangxi, Jiangsu and Zhejiang, among which Hunan and Jiangxi export relatively large quantities of large-specification arbor-type stock with a diameter at breast height of over 8 cm, and out-of-stock situations have appeared in quite a few areas. In 2004, the prices of Hunan stock with a diameter at breast height of 8, 12, 16, 20 and 30 cm were 200, 300, 500, 1
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