In the modern intensive pig-breeding industry, the key to the prevention and control of epidemic diseases, the use of breeding pigs with excellent growth performance, the use of advanced equipment, and advanced management systems cannot be separated from a reasonable and comprehensive feed nutrition system. The ideal economic efficiency. According to the actual production experience, the nutrition factors that affect the growth and development of pigs at different stages are summarized as follows for your reference.

First, the impact of raw materials

Any feed ingredients must be fresh and free of mildew and deterioration.

1, corn

Maize is an annual grass plant of the genus Gramineae. It is native to South America and is the most widely distributed crop in the world. It is the most cultivated plant in the United States and China. There are two types of corn: early-maturing and late-maturing. The early-maturing corn is round, smooth on the top, bright and hard, rich in horniness, and contains a lot of protein; late-maturing corn kernels are flat, concave on the top, and have poor lightness and low protein content. Due to its rich starch content and high crude fat content, corn is the most important high-energy raw material needed for raising pigs.

1. When harvesting, the corn kernels are broken, which can result in the reduction of nutrients and even produce toxins. Because these corn kernels are often highly contaminated, they should be reduced or avoided during harvesting or storage. , insect bites and other phenomena, to avoid damage to its epidermis and shell.

2. When harvested, corn kernels that have not been stored in the sun are susceptible to mildew and deterioration and affect the feeding effect. In severe cases, zearalenone can be produced, which can cause sow pseudo-estrus and seriously affect growth. Under normal circumstances, in the storage process, the moisture of corn should be controlled under 14%, and pay attention to pest control in order to avoid mold. According to reports, the threshed wet corn is packed in a sack lined with a plastic bag and filled as far as possible. The oxygen in the bag is consumed due to the respiration of the corn itself. This not only makes it difficult for Aspergillus flavus to grow. The growth of other molds will also be inhibited. This is an economically convenient and promising method of preventing mold.

3, feed raw materials used for pigs, in order to prevent moldy, more use of old corn instead of fresh corn because of low moisture content of old corn, high nutritional value.

2, leather

The skin is composed of a small part of the processed endosperm, seed coat, and embryo of wheat. The crude fiber content is high and the energy value is low. The crude protein content is high, reaching 12.5 to 17%; therefore, the vitamin B content is high. In addition to serving as an energy source and nutrient source, and more importantly, its physical properties are relatively loose, in pig diets, the skin can play an important role in regulating the concentration of nutrients and changing the heavy nature of a large amount of concentrates. . In addition, the skin also has a laxative nature, and the postpartum sow can adjust the function of the digestive tract by giving a proper amount of skin. When using pigs to feed pigs, pay attention to:

1. After the skin becomes degraded, the pigs cannot be fed because the deteriorating feeds seriously affect the digestive function of the pigs, causing serious diarrhea, etc. and affecting the growth and development of the pigs.

2, can not add too much in the compound feed skin, because of its strong water absorption, too much skin in the feed can cause pig constipation. The skin should be added in an appropriate amount according to the size of the pig.

3, soybean meal

Soybean is native to China and mainly distributed in Northeast China, North China, Northwest China and Inner Mongolia Autonomous Region. According to analysis by the Institute of Animal Husbandry, Jilin Academy of Agricultural Sciences, soybeans contain 36.2% of crude protein and 16.1% of crude fat, and are rich in protein, fat, and other nutrients, and are suitable for pigs as a concentrate feed. Soybean meal is an accessory of soybean after oil extraction and belongs to protein raw material.

1. As a raw material for protein feed, the content of soybean meal in compound feeds must be determined according to the pig's different growth stages and growth requirements, and its amount should not be too high or too low.

2, according to the content of protein in soybean meal itself, properly adjust its percentage in compound feed. Because of the natural disasters in the soybean producing areas, the protein content of soybeans is reduced. If the formulas are not adjusted in time, the growth and development of pigs will have a certain impact.

3, a large number of used soybean meal, each batch should be tested, first, whether there is adulteration test, and sometimes may be mixed with rapeseed, etc.; second is to test the protein content to ensure the availability and effectiveness of soybean meal .

4. The color of the pods is mainly light yellow, and too dark is too ripe. Too light to live, over-produced or over-produced soybean meal will reduce its utilization, affecting the pig's normal growth needs.

4, fish meal

Fishmeal is an animal protein feed, but also belongs to the category of energy concentrates, but because of its high protein content and good quality, the pig industry mainly uses its protein feed characteristics. In addition, the content of calcium and phosphorus in fish meal is also relatively high, which can effectively supplement the deficiency of calcium and phosphorus in feed.

1, when buying fishmeal, first test its purity. Due to the high price and high profits of fishmeal, many fishmeal are adulterated, mainly by mixing hydrolyzed feather meal, leather powder or inorganic nitrogen, and some adulterants rate is as high as 70-80%. It is difficult to check the protein content of such fishmeal by conventional methods. It is best to send it to an experienced testing department or agency for testing.

2. Not all compound feeds need to add fishmeal, and they must be properly added according to actual needs, so as to save cost and increase production effect.

3, when buying fishmeal, it is in line with the principle of "a price for a goods". If not, use quality guaranteed fishmeal.

Second, additives and full-priced feed influencing factors

1, feed additives

Feed additive is a variety of trace components added to compound feed. The main role is to balance the full price of compound feed, improve its feeding effect, promote animal growth and control of animal diseases, reduce the loss of nutrients during feed storage and improve Pig product quality, improve economic efficiency. The types include amino acid additives, trace element additives, vitamin additives, enzyme preparations, anti-mould agents, and the like.

1, feed additives have a certain shelf life, well-preserved can use it in the shelf life, the effect of exceeding the shelf life will be significantly reduced; when the weather is wet or not stored well, it should be used up as soon as possible. Discontinue use as soon as there is a deterioration.

2, good feed additives have a strong stability. For manufacturers or manufacturers whose technology is not closed, the stability of their additives is not credible. After the test is compared, the feed additive with obvious effect and strong stability is selected. In the case of normal growth, it is better not to change it often so as not to affect the normal growth.

4, the amount of general feed additives is relatively small, but mostly 4%, although up to 25%, in the preparation of full-priced feed, mixed with feed ingredients to be uniform, to avoid clumping or together phenomenon. When the mixing is not uniform, the overall growth of the herd is unbalanced, and even the normal growth of the pig is prevented.

2, full price feed

Full-price feed refers to the feed that can be directly fed to pigs after being mixed and processed by feed ingredients, feed additives, minerals, trace elements, etc. Large-scale pig farms generally use on-site processing to match.

1. When the raw materials are crushed, the granules should not be too large or too small. When they are too large, the pigs are difficult to digest and cause diarrhea. If the granules are too small, it can cause pig stomach ulcers or easily cause respiratory diseases. In general, in addition to the special pellets or crushed material, the size of the compound feed is: Piglet

2, to ensure adequate time for premixed feed, the general premix time is about 5 minutes. The time is too short, and various additives and other raw materials are not uniformly mixed and the balance is not adjusted; time is too long, manpower and material resources are wasted, and normal production is affected.

3, starting from the mix of good feed, the feed time is generally not more than 3 days, the condition of the farm is best to feed the same day to ensure the freshness of the feed and palatability. The storage time is too long, especially in rainy weather, the feed is prone to fever and deterioration. In addition, some trace elements, vitamins, etc. are also easily oxidized, thus affecting the feeding effect.

4, compound feed in the pig house is not easy to park too long. The general air circulation in pig houses is poor, ammonia is too concentrated, and mosquitoes and flies are more likely to cause a certain degree of pollution. Therefore, the feed to the pig house is best used on the same day. If it needs to be preserved, the feed factory or warehouse will have a better preservation effect.

5. The preparation of compound feed should be based on the needs of different growth stages of pigs to strictly implement the nutrition standards and configure them in stages.

Feed nutrient factors affecting the growth and development of pigs at different stages and countermeasures

1. Feed nutrient factors affecting breeding boars and countermeasures

Normal lean-type boars refer to boars of physiologically normal growth with an average age of 8 months and a body weight greater than 120 KG. Under normal circumstances, natural mating, before the age of 1, two times every two weeks or once every 3 to 5 days; after 1 year old, can be used 3 to 4 times a week or the next day or once every two days Two days. Boars for artificial insemination use two times every three weeks before the age of one and collect sperm once a week after the age of one. Because of its frequent use, it is especially important that the boar's diet is reasonable or not.

For the nutritional needs of boars, the United States (1998) NRC standard is that boars feed 2KG feeds per day, including crude protein 13%, lysine 0.6%, Ca0.95%, P0.80%, methionine and cysteine 0.42%, energy level is 13.66MT/KG. However, in order to pursue high-quality semen quality, many farms have higher nutrient levels than NR (high standards, sometimes with protein as high as 17 to 18%).

The feed nutrient factors affecting the boar mainly include the following aspects:

1, protein levels

Since the composition of dry matter in the semen of the boar is mainly protein, when the protein in the feed is insufficient or the quality of the intake protein is insufficient, the libido, semen concentration, semen volume and semen quality of the breeding boar can be reduced. In addition, according to relevant information, It shows that the lack of tryptophan can cause the atrophy of the boar's testis, which affects its normal physiology.

2, energy level

Boars maintain their own growth needs, semen causes, and mating activities require energy. The energy in general feed should reach 2700∽2900 kcal/kg. If the energy is too low or the feed intake is too low, the boar will easily lose weight and the libido will be reduced. This will result in a decline in semen quality and shorten the useful life. If the energy is too high or the feed intake is too high, boars tend to gain weight. Over-fertilized boars are generally unwilling to exercise and are prone to toe-foot disease. It is difficult to mate or collect sperm, resulting in a decline in libido and poor semen quality. In general, diets that meet the nutritional standards are fed 2.3 ∽ 2.5 KG daily depending on the boar's body condition.

3, the influence of trace elements

Lack of selenium, zinc, iodine, cobalt, manganese, etc. in feed can affect boar reproductive function, and some can cause bovine testicular atrophy, affect semen production and semen quality.

4, the impact of vitamins

Vitamin E in feeds is more important than boars. Although there is no evidence that it can increase the productivity of male boars, it can improve immunity and reduce stress, thereby improving boar physique.

5, the impact of green feed

While continuing to feed compound feed, adding 0.5~1KG of green and succulent feed every day can keep the boar's good appetite and sexual desire, and improve the quality of semen quality to some extent.

2. Feed nutrient factors affecting gilts

Feed nutrient levels and protein levels are particularly important for the growth and development of gilts. For gilts that reach 90~100KG, pay attention to feeding or limiting according to the body condition. When the gilt is too fat, the estrus is not normal or obvious. The first baby has poor lactation performance, and the estrus is difficult after weaning. When it is too thin, the estrus is not estrus or the estrus time is delayed. When the first litter is born, the milk is poor and affects the piglets. The growth, weakness after weaning, or poor body condition affect estrus, and can not be used for breeding or even elimination in severe cases, thereby shortening the useful life.

The gilts have high protein and energy requirements in the early stage, with 18% of protein and 3,000 kcal/kg of energy. The late stage requires low protein, 16-17% of protein, and energy of 2800-2900 kcal/kg.

1. For gilts whose body weight is 90~100KG, feeds are usually fed by free-feeding. After the end of the measurement, appropriate restriction should be taken according to the body condition to prevent overweight or overweight.

2. The calcium and phosphorus content in the feed should be sufficient. A gilt is at the stage of physical development. Feeding a full-priced diet that meets the calcium and phosphorus levels required for optimum bone deposition can extend reproductive life. In general, calcium in feed is 0.95% and phosphorus is 0.80%.

3. Beginning 3 weeks before breeding, in order to ensure the normal sexual desire and increase the number of ovulation, the amount of feed should be appropriately increased to about 3KG.

4, appropriate feeding of green feed, can improve the digestive ability of gilts, and promote the normal function of physiological function.

3. Feed nutrient factors affecting normal estrus in empty sows.

Empty sows refer to the sows before weaning after weaning. The level of feed nutrient levels and protein levels have important implications for the normal estrus of empty sows.

1. The nutritional level of empty sows needs to be 2700-2750 kcal/kg, and protein is about 14%.

2. In order to supplement the loss of body weight during breastfeeding, empty sows prior to breeding should be fed with enough lactating sows to restore body condition and promote estrus as soon as possible.

3, according to the body condition, too thin sows should be extra material, because the sows are too thin, body fat accumulation is not much, their growth can not meet, affect the normal heat, eventually leading to shorten the useful life.

4. Feed nutrient factors affecting the development of pregnant sows and embryos and fetuses

Because pregnant sows maintain their own needs, physical fitness, and the normal development of embryos and fetuses, their nutritional needs are higher than that of pregnant sows. The general energy level is 2750 to 2800 kcal/kg, and the protein is about 14%.

1, the average daily feeding material in the pre-pregnancy period is not easy to be too large, the amount is too easy to cause the sows to be over-fertilized, difficult to produce, weak, and poor milk, and so on. In general, the first month of pregnancy, the amount of feed 1.8 ~ 2.0% KG / day, the middle of two months or so depending on the situation to feed to 2.0 ~ 2.3KG / day, the last 24 days to feed 2.8 ~ 3.0KG / day .

2, avoid the one-size-fits-all phenomenon, that is, how much material to feed, the number of sows fed every day. According to the sow's own body condition to see the pig feed, the fat is reduced, and the thin is added. The sows who are too thin during pregnancy will show delayed estrus after weaning, lower fertility rate, weaker and younger, poor milk, and piglets. High mortality rate.

3. The daily protein level should be moderate, generally about 14%. Proteins are too high for adverse pregnancy, and too low will affect sow reproductive performance.

4. In the late pregnancy, the sow can be fed with a certain amount of green and juicy feed. On the one hand, it can promote the increase of appetite and relieve constipation of sows. On the other hand, it can promote fetal development and increase litter size.

5, late pregnancy, burping, generally do not use lactating sows, because this method of feeding sows is easy to constipation, causing loss of appetite, body condition worse.

6. Daily minerals, Ca, and phosphorus should be sufficient and balanced. When dietary calcium deficiency occurs, it causes osteoporosis for sows, easily causes prenatal or postpartum spasms, and reduces postpartum lactation levels. For developmental embryos and fetuses, especially late fetuses, due to skeletal development needs A lot of calcium can cause osteomalacia when it is deficient. Phosphorus deficiency can lead to miscarriage or even infertility in sows. Under normal circumstances, Ca and P are 1.5:1 for pregnant sows.

7, the amount of vitamins in the daily feed should be appropriate. Long-term lack of vitamin A can lead to weakness of the pig's physique, and even cause eyelids and severe minor eye disease, while the sow shows a decline in reproductive function.

5. Feed nutrient factors affecting nursing sows

The nursing sows are in the most important position in the entire pig production line because: the nursing sows are well-managed and the sows are susceptible to estrus after weaning and maintain good reproductive performance. The piglets are transferred to the nursery for feeding after weaning. To lay a solid foundation for improving the brooding rate; when the feeding is poor, the sow's excessive fat or too thin influences the next heat, prolongs the period of nourishment, poor growth of the piglets, difficulty in rearing and management after transferring to the nursery, and low breeding rate. This affects the entire production.

1. It is not easy to average the amount of feed before weaning until after weaning. Generally, the day of sow feeding is not fed. The next day it is fed with about 1KG, and then increased by 0.5KG/day, until 4~5KG/day after one week until weaning.

2. The feed energy of lactating sows should not be lower than 2800 kcal/kg, and the protein should be no less than 16%. When the energy is too low, sows on the one hand have to maintain their own energy needs, and on the other hand they have to suckle the piglets. In this way, the sows must consume too much of their own physical energy, causing excessive weight loss, affecting breastfeeding and the next occurrence of heat. When the protein content is high (preferably about 17%), it can promote the sow to secrete more milk, reduce the weight loss of the mother, prevent the reproductive performance from becoming worse, and improve the survival rate of piglets.

3. It is best to feed wet sows for lactating sows, especially in the southern regions of China. In the summer, high temperature and high humidity, sows have poor appetite. In addition, 80% of the components of milk are water, and they should be supplemented with water. Generally, after the dry material is added in the trough, water is added twice as much as the dry material, which greatly improves the palatability of the feed.

4. Feeds for nursing sows should be fed with small meals. According to the observation of experiments, the daily feeding intake of sows varies greatly. The method of feeding 4 meals a day is more than 2 meals a day. About 20%. The timing of the four feeding methods was morning work, lunch break, afternoon work, and night 9~10. Feeding was done once before the next feed, and the feed was usually 1~1.5kg/time. Before each feeding, be sure to clean up the material that has not been eaten before, to avoid moldy and deteriorating feed.

5, feeding the full price of feed at the same time, appropriate feeding some green juicy feed (such as sweet potato vines, etc.), one can increase the appetite of sows, increase milk secretion, and second, can reduce the occurrence of sow constipation. However, the fed green feed should be washed with clean water first. Then dry it to reduce parasite transmission.

6. Feed Nutritional Factors Affecting Piglet Growth

Because of the imperfect nervous system and unsound digestive system, piglets have higher requirements for sows and saplings, typically with 3000–3,200 kcal/kg protein and 20–21% protein.

1. Feeding breast milk at the same time, piglets should be fed early. Feeding should be gradual, from less to more, and gradual transition. 3 to 4 days after the birth of the piglet, a small amount of material can be sprinkled on the insulation board to begin learning sniffing and smelling. When it is eaten gradually over a few days, increase the amount again. About 10 days old, put the material into the feed The tank is fed.

2, piglets feed should not be too much each time. When too much, it is easy to be caught by piglets, causing unnecessary waste. It is also easy to dissipate the aroma, which can not attract piglets' interest. Generally every 2 hours plus 1 times, immediately after eating, if the empty material is too long, piglets hunger meal full meal, easily lead to indigestion or weight loss.

3, feeding material to choose good palatability materials. At present, there are many different types of manufacturers that produce and sell educational materials, but for the piglets in their own fields, they must be stable and strong and have a good reputation.

4. When feeding, remove the old material mixed with piglet excreta so as not to affect the palatability of the feed.

7. Feed nutrient factors affecting the growth and development of nursery piglets

1. Piglets that have just been transferred to nursery homes must control the amount of feed and gradually increase to the level of feeding.

2. In the first two weeks after the piglet is transferred from the delivery room to the nursery, the piglet feed should be continued and gradually transferred to the piglet feed to enhance the adaptability of the digestive function of the piglet.

3, feeding piglets to feed more meals, usually fed 2 to 4 times a day, each feed immediately after feeding, can not be empty for too long.

8. Feed nutrient factors that affect growth and development of growing pigs

1. The content of Ca in the growing material should be sufficient to promote the normal development of the skeleton.

2. Adhere to free feeding methods to promote the growth and development of bred pigs.

In short, it plays an important role in the growth and development of pigs, energy levels, protein levels, minerals, vitamins, raw material quality, etc. No matter which part of the problem, can affect the normal growth and development of pigs. , resulting in some economic losses.

Printing Glow In Dark Tape

Printing Glow In Dark Tape

1. Material and classification of glow in dark tape

We have PET material glow in dark tape and PVC material glow in dark tape. PET material is cheaper but not printable. PVC material support customized printing with low MOQ.

For both materials, we have different kinds according to the glowing time it can last after full charging (0.5hours charging at least). We have 2hours, 4hour, 6hours, 8hours and 10hours according to the glowing period it can last.

2. Colors for choosing

We have light green, pink, orange, red, blue, white for choosing.

3. Features

a. Good ahesion, we use solvent acrylic adhesive, the adhesive is strong and long lasting.

b. Waterproof. Both PET and PVC material are waterproof. Can used for both indoor and outdoor usage.

c. Long service life: 2~3 years even for outdoor usage.

d. Different sizes for choosing: 1.24m x 45.7m log roll, or other customized sizes such as 25mm/ 50mm x 5meters/ 10yards/ 10meters/ 18meters, etc.

e, Accept die cuting to small pieces such as dots, stars, arrows, etc,

Printing Glowing Tape,Printing Glow In Dark Tape, Customized glow in dark tape, customized luminous tape

Kunshan Jieyudeng Intelligent Technology Co., Ltd. , https://www.yuhuanptapes.com