PIG TECHNOLOGY
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With feed research and development and transformation of scientific and technological achievements as the core, it is a comprehensive international agricultural and animal husbandry group enterprise integrating the evaluation and development and operation of feed raw materials, the production and sales of livestock and poultry premix, high-grade pig teaching trough materials, conservation materials and full-price materials, breeding livestock and poultry breeding and green food production and sales.
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In this experiment, the effects of heat stress and ZEN exposure on the ovaries of adolescent females were investigated using the reserve pig as a model, so the designed ZEN dose was lower than the toxic dose, and the test time was short, only 7 days. Despite this, the experiment found changes in the expression of several proteins in the ovaries.
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Global warming, the temperature is getting hotter and hotter, we all have a deep understanding. According to the China Climate Bulletin 2023, in 2023, the national average temperature was 10.71 ℃, which was 0.82 ℃ higher than that of the whole year. The temperature in all seasons was higher. The temperature in winter and spring fluctuated greatly. The temperature in summer and autumn was the second highest and the highest in the same period in history. That is to say, the hot temperature is getting higher and higher, and the hot time is getting longer and longer, and the World Meteorological Organization has confirmed that the world will be hotter in 2024!
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Vitamin A acetate (vitamin A), vitamin D3, dl-α-tocopherol acetate (vitamin E), menadione bisulfite (vitamin K3), L-ascorbic acid (vitamin C), thiamine hydrochloride (vitamin B1), riboflavin (vitamin B2), pyridoxine hydrochloride (vitamin B6), D-biotin, nicotinamide, folic acid, D-calcium pantothenate, L-lysine hydrochloride, DL-methionine, etc.
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The difference in reproductive performance between grown-up ternary sows and grown-up binary sows is obvious at the time of one litter, which is mainly reflected in: the total litter size, live litter size, weaning litter weight and lactation volume of grown-up ternary sows are 1.5, 1.54, 10.64kg and 22.15kg less than those of grown-up binary sows respectively. This difference is mainly determined by breed genes. The difference in reproductive performance between the two breeds was not obvious when the second child was born, indicating that the production management erased the genetic differences between the two breeds. From the data point of view, the weaning litter weight and lactation volume of Du Changda Sanyuan sow were 5.22kg and 11.17kg less than those of the grown binary sow respectively.
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Usually use "skin red hair bright" to intuitively describe the pig's fur state, in scientific research used in the fur index, although there is a scoring standard, but from the evaluation method point of view this is not a scientific indicator, because the pig's fur is breed, environment, nutrition, health degree of comprehensive feedback. The fur index usually consists of three parts, the skin ruddy degree score, the hair color brightness score, the hair smoothness score, the score is scored by several people at the same time according to the standard, and then the average is obtained.
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Water is the first nutrient. There are pathogenic bacteria, possible viruses and sediment impurities in drinking water. Compared with hardware improvement, adding acidifier is the most cost-effective way to purify water quality.
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The purpose of the stability test is to investigate the law of the nature of the product under the influence of temperature, humidity, light and other conditions over time, and to provide a scientific basis for the determination of the production, packaging, storage, transportation conditions and validity of the product, so as to ensure the safety and effectiveness of the product on the market.
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Eating 1 mouth and drinking 3 sips of water is the eating habit of pigs and the source of all nutrients for factory-farmed pigs. Therefore, the food safety of pigs is the safety of feed and drinking water.
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A complete feed formula has six basic ingredients: energy, protein, amino acids, vitamins, mineral elements and functional additives. A healthy fattening pig has three main nutritional requirements: maintenance, immunity and meat growth. PSAN 5215 concentrates the five basic raw materials to meet the three nutritional needs of fattening pigs in an overall plan, allowing customers to raise pigs without adding soybean meal.
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Lameness is the second largest unplanned elimination factor for sows after reproductive disorders, accounting for more than 22% of the total elimination rate (Zhao et al., 2015). Lame is a comprehensive reflection of the entire motor system of muscles, bones, joints and hooves, in which hoof injury is the most common factor leading to lameness.
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Pig farm delivery room study notes series 3: sows postpartum less milk
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Dietary fiber is the most practical way, with wheat or barley to replace part or all of the corn, increase the feed insoluble fiber, in the field can clearly see the sow constipation relief.
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In recent years, the number of pig breeding has been increasing, but due to inadequate management, many pig farms are troubled by the problem of piglet umbilical cord hernia. Piglet umbilical cord hernia is more difficult to treat, even if the operation effect is not ideal, and individual pigs will die due to unsuccessful surgery. Piglet hernia not only affects the growth of piglets, but also affects the economic benefits of the whole pig farm.
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The stage of labor refers to the time from the birth of the first piglet to the complete discharge of the afterbirth. According to the summary in "Pregnant and Lactating Sows" ([plus] Chantal Farmer editor-in-chief, translated by Li Jianxin, Yin Yuepang and Li Ping), the normal time is less than 300min. Sows with more than 300min have a higher stillbirth rate than sows with less than 200min. Sows with more than 300min have an average of 1.4±1.5 stillbirths, while sows with shorter than 300min have an average of 0.5±0.9 stillbirths, and the long duration of labor also increased the risk of infection in the birth canal. The production process of 30 sows collected in October 2021 was analyzed, of which 80% of sows were within 300min, which was within the normal range, and 13% of sows exceeded 300min. Sows with long labor time without exception lack milk after real estate, slow recovery of birth canal and many secondary problems. The problem of less milk after delivery will be elaborated in another note.
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