Plant extracts are based on plants as raw materials. According to the needs of the use of the final product extracted, through a physical and chemical extraction and separation process, one or more effective ingredients in the plant are obtained and concentrated, without changing the effective ingredients. The product formed by the structure. Herbs Extract,Plant Extract,Functional Additives,Traditional Chinese Medicine PYSON Co. Ltd. , https://www.pysonbio.com
Group selection "four stages"
The selection of gilts should insist on the principle of selecting and selecting carefully. When the group is selected for stay, it can be divided into the following four stages:
1.2 Months of age selection: Must be descendants from elite breeds and excellent individuals. It is advisable to select the appropriate number of litters, feeding rate, and the higher number of 2-5 litter sows to be weaned. Individuals with fast growth, large body weight, and no hereditary disorders in pigs, that is to say, pigs to be selected, such sows can have a longer useful life. In this case, 200% to 250% of the number of sows to be replaced should be selected.
2.4 months of age choice: Select individuals over the average daily gain over the same period, all those who have poor growth, slow weight gain, appearance and external genitalia are eliminated.
3.6 months of age selection: This is a critical period for the selection of gilts. Strictly choose according to its various properties, such as weighing and measuring body length, body height, chest width, chest depth, hip circumference, etc., to eliminate bad individuals.
4. The choice before the first match: At this time, the last time to pick out, in time to eliminate the development of sexual organs is not ideal, the estrus cycle is irregular, estrus phenomenon is not obvious and long-term non-estrus individuals.
Individual choice "four notes"
When choosing a gilt, the individual must meet the minimum requirements for fur, shape, breast, and genitalia:
1. Fur: Bright hair, soft skin, white pork skin red, no curls, loose hair, skin dirt.
2. Appearance: thick mouth, thick nostrils, thick limbs, strong, wide left and right spans, wide and straight back, wide open ribs, full hips, thick tails, straight limbs, generous, large hooves , Hosiery well-distributed, spaced distribution.
3. Breasts: There are enough nipples, more than 14 effective nipples (more than 12 lean-type pigs), well-developed, moderate-sized, normal shape, thick breasts, multiple milk ducts, arranged on both sides of the ventral line Uniform and neat and prominent, of which at least three pairs before the umbilicus, no secondary nipples, hernia nipples.
4. Reproductive organs: The pus is well developed and drooping, moderate in size, well-placed, with no malformations in the vulva, normal estrus cycle before mating, and obvious estrus symptoms. Avoid the selection of sows with very small vulva or pointed ends of the vulva. It is very difficult to gilt breeding with this type of vulva.
1. According to the content of active ingredients, it can be divided into three types: effective monomer extract, standard extract and ratio extract;
2. Divided into glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc. according to ingredients;
3. According to the product form, it can be divided into vegetable oil, extract, powder, lens, etc.
4. According to the purpose, plant extracts can be divided into natural pigment products, traditional Chinese medicine extract products, extract products and concentrated products.
There are several classifications of some of the best-selling plant extracts in the world. For example, Rhodiola, Ginkgo biloba, Ginseng extracts are used in the field of brain strengthening, nourishment, and prevention and treatment of Alzheimer's; polypeptide extracts of green tea, Citrus aurantium, apple, and bitter gourd Used in weight loss, lowering blood sugar and preventing diabetes; Paclitaxel, tea polyphenols, theanine, bioflavonoids, such as lycopene, anthocyanins, etc. are used in natural anti-cancer fields; licorice, garlic, astragalus, soybean extract Used in the field of human immune system.
High-yielding sow picking points
In a large-scale pig farm, in order to maintain a high production level of the breeding sow, and ensure the balanced production of the normal production on the farm, there are some production sows every year for various reasons (diseases, feeding and management, and inheritance). Defects, etc.) are eliminated and some gilts need to be replenished in time, and the selection of gilts is the key to determining the production level of the farms. The high-yielding sow herds can increase the annual slaughter of pig farms and effectively reduce the production of pigs. cost. Therefore, gilts should consider the following two points when choosing: