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Feed Formulas and Scientific Preparation Methods for Lactating Sows
Lactating sows need large amounts of nutrients to support lactation. During peak lactation, the sow's milking capacity exceeds the nutrients she takes in through feed and exceeds the nutrients excreted in milk, so her body condition declines rapidly. Preparing high-quality, high-nutrient-density feed for lactating sows is the best way to resolve this contradiction. Feed Formula 1: Lactation Feed Formula 1 in Table 4-3 avoids as much as possible the use of bulky feeds such as alfalfa and rice hull bran. In the design of lactation feed formulas, unknown nutritional factors appear to be less
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Pig eczema breaks out frequently during the rainy season: how can it be prevented and treated scientifically?
Pig eczema, also known as pig eczema toxemia, is mainly caused by pigs living in a damp environment for a long time, and the outbreak rate of this disease is especially high in hot seasons. 1. Symptoms. Most acutely affected pigs develop the disease suddenly. At the beginning of the disease, the skin under the jaw, on the abdomen and on both sides of the perineum turns red, and broad bean-sized nodules appear at the same time, with itching and restlessness. Later, as the condition worsens, blisters and papules appear on the skin of the affected pigs. After the blisters and papules rupture, they are often accompanied by yellow exudate, and finally form scabs or turn into scales. If acutely affected pigs are not treated in time
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Rice Research Institute of Jilin Academy of Agricultural Sciences selects high-quality rice varieties
At the recently concluded evaluation of high-quality rice varieties (lines) in Jilin Province, "Jigeng 81" and "Jigeng 83", bred by the Rice Research Institute of the Jilin Academy of Agricultural Sciences, were rated as "high-quality rice varieties", and another 6 lines were rated as "high-quality rice lines". It is reported that this high-quality rice variety (line) evaluation was the third such event held after 1995 and 1998. The 10 high-quality rice varieties selected in the previous two events have already been promoted and applied on a large scale in production thanks to their good quality and high yield
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How to Choose Chicken Feed? Master the Scientific Selection Method
Choose the manufacturer and brand. There are many manufacturers at present. When purchasing feed, make sure to identify the manufacturer and choose products that have been tested by research institutions and then promoted for use. Choose according to the type of livestock or poultry and its growth and development stage. Compound feed is formulated for different types of livestock and poultry and different production purposes. Chicken feed is further divided into chick feed and adult chicken feed. Therefore, when selecting, be sure to purchase according to the instructions on the compound feed. Do not judge the quality of feed by appearance alone. Some farmers mistakenly believe that feed with good color and a pleasant smell, which produces black droppings after feeding, is
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What is the scientific way to store potatoes? A complete breakdown of the methods
For the heap storage method, choose a warehouse with good ventilation and a dry site, first fumigate and disinfect with a mixture of formalin and potassium permanganate, then put the potatoes into the warehouse, generally piling 750 kg per sq m, about 1.5 m high, surround them with crates, baskets or wooden boards, and place several bamboo ventilation tubes in the middle. This method is suitable for short-term storage and the storage of autumn potatoes. For the ventilated warehouse storage method, put the potatoes into baskets and stack them in the warehouse, about 25 kg per basket, and a stack height of 5 to 6 baskets is appropriate. In addition, they can also be piled loose in the warehouse, with a pile height of 1.3 to 1.
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A Detailed Guide to Scientific Propagation Methods and Techniques for Gypsophila
Gypsophila can be propagated by sowing and tissue culture: ① Propagation by sowing. First, select disease-free, vigorous plants as seed-collection mother plants. When the capsules turn from green to pale yellow, harvest them, dry them, and after the seeds fall out, remove impurities and store them in a dry, ventilated place. In the southern Yangtze River basin area, sowing is mostly done in March. After the seeds germinate and emerge, thinning must be carried out to increase the spacing between seedlings so as to improve ventilation and light penetration and make them grow vigorously; they can also be sown directly in holes at a plant-to-row spacing of 20 cm x 40 cm on the cultivation seedbed for care and management. Those sown during this period
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How to cultivate Dianthus (Dianthus chinensis) scientifically? Detailed methods and key techniques
Dianthus is mostly propagated by seed, sown in September at a temperature of 12-18°C, and seedlings emerge in about 10 days; it can also be propagated by cuttings, cutting 6 cm long branches as cuttings. For potting, it is best to use a culture soil mixed with 7 parts garden soil, 1 part compost soil, and 2 parts sandy soil. When the seedlings grow to 4-5 leaves, they can be transplanted into small flower pots with a diameter of 6-8 cm; after growing into larger seedlings, they are then planted in flower pots with a diameter of 15 cm and placed in a sunny spot for cultivation. During the growth period, apply fertilizer water once every 10-14 days, and the flowers
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Detailed explanation of An pear cultivation techniques, key points of scientific planting and management
An pear is one of the important varieties of the Ussurian pear system, mainly distributed in the Yanshan mountain area of northeastern Hebei Province and western Liaoning Province. An pear is loved by people for its unique flavor, golden color, low price and extremely strong storability; it is also widely cultivated in the Yanshan mountain area for its strong resistance and adaptability. 1. Variety characteristics. The fruit of An pear is spherical or oblate, containing soluble solids 12.9%-16.2%, organic acids 0.9-1.43%, vitamin C 8.2
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Key Technical Points for Scientific Management of Soybeans Adapted to Seedling Conditions
Liang Huizhen, associate researcher at the Cash Crop Research Institute of the Provincial Academy of Agricultural Sciences, said that at present most areas of our province's soybeans are at the flowering and podding stage, which is the period of greatest nutrient and water uptake and also the peak period of root nodule nitrogen fixation. The main goal at this stage is to promote more flowering and more pod setting, prevent premature senescence, control excessive vegetative growth, increase flowers and preserve pods, reduce shedding, and lay the foundation for a high yield. Due to the tight time schedule at sowing, summer soybeans often receive no or little basal fertilizer, and by the time the soybeans set pods, nutrient deficiency occurs, so flower and pod fertilizer should be applied promptly. At
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Improving Traditional Feeding Methods: Scientific Management Techniques for Meat Sheep Fattening
Improving Traditional Feeding Methods: Scientific Management Techniques for Meat Sheep Fattening
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