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Detailed Introduction to Duck Breeds and Their Characteristics
Duck breeds are divided by economic purpose into two major types: meat-type and egg-type. Meat-type ducks have a large body size, a broad and thick body, full muscles, delicious meat, a gentle temperament, and slow movement. They grow fast in the early stage and are easy to fatten. Representative breeds include the Beijing duck, Cherry Valley duck, French Muscovy duck, and Aobaxing duck. At present, those relatively well suited to the market, such as the French Muscovy duck and Aobaxing duck, are viewed favorably, with prominent characteristics including good meat quality, a high lean meat rate, a low feed-to-meat ratio, and strong disease resistance. For example, the meat of the French Muscovy duck has a game bird flavor; breast and leg muscles account for 27-30% of the carcass; under
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Pietrain Pig Breed Characteristics and Farming Introduction
The Pietrain pig originates from Belgium. Its body is square-shaped, wide and short, with fine bones and short limbs, and particularly well-developed muscles. Its coat is grayish-white with black patches, and its ears are medium-sized and tilted forward. The average litter size is about 10 piglets. It is reported that at 90 kg body weight, growing-finishing pigs have a carcass lean meat percentage of 66.9%, a daily weight gain of 700 grams, and a feed conversion ratio of 2.65. For commercial meat pigs, the growth rate decreases significantly after 90 kg. Pietrain pigs have severe stress reactions, and about 50% of pigs carry the halothane recessive gene. When purebred Pietrain is used as the sire for crossbreeding, pale soft exudative meat (
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How to treat pig stomatitis? Detailed introduction to treatment methods
1. Cause: Coarse and hard feed or feed mixed with sharp objects such as fish bones and nails, drenching with irritating drugs such as tartar emetic, and feeding overly hot feed can all cause oral mucositis. In addition, it can also occur in diseases such as foot-and-mouth disease, necrobacillosis and mercury poisoning. 2. Symptoms: The sick pig eats slowly or has difficulty eating, and there is a foul odor in the mouth. Ulcers may occur at the injured area caused by punctures. When caused by corrosion or irritation, the oral mucosa becomes congested and red, and may even slough off. 3. Prevention and treatment: Feed should be inspected, and the cause should be removed promptly after onset. For treatment, the following can be used:
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Introduction to the Characteristics of the 9685B Cotton Variety
9685B is a new cotton variety with multiple resistance, no need for pruning, and ultra-high yield. I. Characteristics (1) Uniform and vigorous seedlings. Emergence is fast and uniform, seedlings are vigorous, and growth is steady. (2) No pruning, no disbudding. This variety is a medium-early maturing variety with a growth period of about 125 days. Plant height is about 90 cm, the plant type is relatively loose, fruiting branches are longer, leaf branches are few, leaf branches have strong boll-setting ability, and redundant buds are few, and they readily form fruiting branches and sub-bolls. Throughout the entire growth period, it can be left without pruning, disbudding, or removal of redundant buds, allowing it to grow naturally. It is suitable for large-scale planting
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Introduction to the new cotton line ZGK9822
ZGK9822 (formerly named Zhong 221) is a new disease-resistant, insect-resistant cotton line bred by the Cotton Research Institute of the Chinese Academy of Agricultural Sciences. It carries two insect-resistance genes, BT and cpTI. This line has passed the genetically modified organism safety assessment of the Ministry of Agriculture. I. Characteristics: The growth period is 130 days, belonging to the medium-maturing, slightly early type of variety. The plant is tower-shaped and fairly compact, with a plant height of 82 cm. The leaves are medium in size and dark green. It has strong boll-setting ability, and the stems are thick and resistant to lodging. The bolls are oval, with a boll weight of 5.6 g and a lint percentage of 39%.
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Introduction to the Bollgard 410B Cotton Variety
Variety source: Bollgard 410B is another new transgenic insect-resistant cotton variety developed by the American companies Monsanto and Delta and Pine Land using modern high-tech biotechnology. Approval status: In 2001 it received approval from the Ministry of Agriculture for commercial production, and in the same year it passed variety approval in Anhui Province. It is currently one of the key new transgenic insect-resistant cotton varieties promoted in Anhui Province. Characteristics and traits: Bollgard 410B is a medium-early maturing variety, with a growth period of about 123 days, a plant height of about 105 cm, upward-angled fruiting branches, shorter fruiting nodes, a clean and compact plant type, and very strong boll-setting ability.
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Introduction to the Characteristics of the Chuzha 180 Cotton Variety
1. Approval Number: Su Shen Mian 200605. 2. Source and Type: Originally named "Jing D180", it is a first-generation hybrid of medium-maturity upland cotton, developed in 2000 by the Cotton Research Institute of Hubei Jingchu Seed Industry Co., Ltd. using the combination 204 x M31. 3. Adaptation Scope: Suitable for planting in light Fusarium and Verticillium wilt areas of Jiangsu Province (excluding the Xuzhou region). 4. Yield Level and Characteristics: Participated in the Jiangsu Provincial Regional Trial in 2002 and 2004, with a two-year average seed cotton yield of 274.8
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Detailed introduction to the cotton variety Chuanyou No. 1
(1) Combination source: This combination is a new type of cotton hybrid developed by the Cotton Research Institute of the Sichuan Academy of Agricultural Sciences using the cotton genic male sterile "two-line method" complete male sterile line MA as the female parent, crossed with Chuan 55 as the male parent. (2) Characteristics: The growth period is 128-131 days, belonging to the early-medium maturity type; growth and development are rapid during the seedling and bud stages, with vigorous growth in the early and middle stages; plant height is medium, forming a tower shape, with fruit branches borne at relatively low nodes and good ventilation and light penetration, and leaves are medium-sized and dark green. Bolls are large, oval and slightly pointed, with a single boll weight of 5.16 grams; lint
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Detailed introduction to the cotton variety Chuanza No. 11
Approved in Sichuan Province in 1999. Cumulative promotion of 8.5 million mu. (1) Variety source: Bred by the Cotton Research Institute of the Sichuan Academy of Agricultural Sciences by crossing the self-bred dual-resistant genic male sterile dual-purpose line Kang A2 as the female parent with the F10 superior line 2069, a descendant derived from the transfer of semi-wild Mexican cotton (Chuan 73-27 X Mexican cotton). (2) Characteristics: Medium-early maturing hybrid, medium plant height (about 88 m), the whole plant is tower-shaped, the first fruiting branch node is low (4-6 nodes), strong boll setting, good boll opening, large and small sample lint percentage 43
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Introduction to the Characteristics and Traits of the Chuanza No. 8 Cotton Variety
(1) Variety source: This is a first-generation cotton hybrid developed by Lezhi County Seed Company in 1988 by crossing the 473A dual-purpose line with Chuanbei No. 2. (2) Characteristics and traits: The growth period is 135 days, and it is a medium-early maturing upland cotton variety. During the seedling stage, growth and development are fast; the leaves are equal in size, and the leaf color is dark green; the plant type is compact, the fruiting branches are horizontal and evenly distributed, and air permeability is good; the plant height is 80-90 cm; during the flowering and boll-setting stage, growth is steady, flowering and boll setting are concentrated, the boll shell is thin and boll opening is smooth, there are many five-locule bolls, and the single boll weight is 5.08--5.15 g. Fiber color
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