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Detailed Study on New Technologies for Pig and Chicken Nutritional Parameters and Formulations
Solving the global shortage of protein feed and the environmental pollution caused by nitrogen in livestock and poultry excreta has become one of the main themes of animal nutrition research in various countries, and is also one of the research contents of this project. The technical key lies in how to scientifically evaluate feed protein quality, formulate carbon-nitrogen and amino acid balanced diets, and improve the utilization rate of feed protein. The main contents of this study are as follows: (1) Using internationally recognized advanced experimental methods (ileo-rectal anastomosis pigs and caecectomized chickens), the digestible
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What to do about pig anorexia? Proper feed formulation is key
When the temperature rises above 35°C, pigs have low feed utilization and slow weight gain. Therefore, in hot seasons, different feeding methods should be given according to the different categories of pigs and their different physiological stages. Boars: feed twice a day, with an additional feeding of green feed or thin feed at noon. Mating and exercise are both carried out in the morning and evening; after mating, do not immediately let them go into water to wallow or spray them with cold water. From 1 pm to 3 pm every day, spray water once on the pigs' bodies and the ground, reduce light to 8-10 hours, and if the number of matings is low, reduce the amount of concentrate feed to prevent
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Formulation trial for cultivating Agrocybe aegerita (tea tree mushroom) with mulberry sawdust
At present, Fujian, Jiangxi and other places mostly use hardwood sawdust and cottonseed hulls to cultivate Agrocybe aegerita, but the yield is relatively low. This trial aims to explore suitable formulations for cultivating Agrocybe aegerita with mulberry sawdust and silkworm excrement, in order to make full use of local resources, save costs and improve economic returns. 1 Materials and methods 1.1 Test strain Agrocybe aegerita No. 1, provided by the Kexing Edible Fungi Research Institute of Gutian, Fujian. 1.2 Test formulations (1) cottonseed hull 82%, wheat bran 18%; (2) cottonseed hull 36%, mulberry sawdust 36%, rice straw powder 10%, silkworm excrement
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Detailed Explanation of Fish Nutritional Requirements and Formulation Key Points
1. Nutritional requirements of farmed fish: The optimal requirement levels of major components such as protein, fat, and carbohydrates in fish feed vary depending on technical factors such as fish species, feeding habits, different growth stages, water temperature, water quality, and feeding methods. 2. Formula for compound fish feed: Several major fish feed formulas are introduced below for readers' reference. (1) Compound feed for black carp: fish meal 35%, soybean cake 47.5%, barley 15%, yeast 1%, minerals 1.5%, plus added multivitamins, feed conversion ratio 2.26.
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Fox Feed Formulation Methods and Technical Key Points
The fox is internationally recognized as one of the precious fur-bearing animals, and it is raised in many countries around the world. It is a carnivorous monogastric animal, and feed must be formulated according to its nutritional requirements, feeding standards, and locally available feed conditions. At the same time, attention should be paid to the complementary effects of proteins in various feeds, their physicochemical properties, and so on, in order to improve the nutritional value and utilization rate of the feed. (1) Daily feed for foxes 1. Animal-based feed: includes various small trash fish, livestock and poultry offal, and various wild small animals such as rats, earthworms, maggots, frogs, and so on. Fish meal can also be used.
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How to formulate feed for pigs during lactation? Sharing practical formulation tips
Sows during lactation need large amounts of nutrients to support milk production. At peak lactation, the sow's milking capacity exceeds the nutrients she takes in through feed and the nutrients excreted in milk are greater, so the sow's body condition declines rapidly. Formulating 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 less important
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To raise pigs well, feed formulation is the key
First, it must be varied and reasonable to ensure comprehensive nutrition. Among the three types of feed for pigs - green feed, roughage and concentrate - green feed contains more water, is bulky, easy to digest and highly palatable, and contains a variety of vitamins, minerals and protein; roughage is bulky and has a relatively high crude fiber content, and when reasonably combined it can increase the contact surface between feed and digestive juices and has a laxative effect, easily giving pigs a feeling of fullness, but it is difficult to digest; concentrate is characterized by small volume, high nutritional value and easy digestion, but is relatively lacking in minerals and vitamins. Second, pay attention
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Reasonable pig feed formulation is the only way to prevent pigs from losing their appetite
When the temperature rises above 35°C, pigs have low feed utilization and slow weight gain. Therefore, in hot seasons, different feeding methods should be given according to different categories of pigs and different physiological stages of pigs. Boars: feed 2 times a day, and add green feed or thin feed at noon. Mating and exercise are both carried out in the morning and evening; after mating, do not immediately let them go into water to wallow or spray them with cold water. From 1 p.m. to 3 p.m. every day, spray water once on the pigs' bodies and the ground, and reduce light to 8-10 hours. If the number of matings is low, the amount of concentrated feed should be reduced to prevent overfattening and poor libido.
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Analysis of Issues in the Formulation and Use of Complete Feed for Ussuri Raccoon Dogs
The raccoon dog is an animal endemic to East Asia, mainly found in China, Russia, Korea, Japan, Mongolia and other countries, and is divided into many subspecies. The Ussuri raccoon dog is mainly distributed in China's Heilongjiang Province, the eastern and southeastern regions of Jilin Province, and northeastern Korea. At present, the vast majority of raccoon dogs bred in captivity in China are Ussuri raccoon dogs originating from Heilongjiang Province. The raccoon dog is one of the fur-bearing animals with high economic value. Compared with foxes and mink, it has the advantages of bearing more cubs, a high survival rate, being easy to raise, and having a stable market; therefore, in recent years the number of raccoon dogs raised in China has steadily increased year by year, with good momentum
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Detailed Explanation of Fox Feed Formulation Methods and Raw Material Ratios
The fox's digestive tract is shorter than that of the raccoon dog, its dental chewing surface is less developed than that of the raccoon dog, and the fox's large colon and cecum are also less developed than those of the raccoon dog. The time food takes to pass through the digestive tract is only 25-30 hours for the fox, while the raccoon dog needs about 40-50 hours. Therefore, the fox's ability to digest and absorb nutrients from feed is weaker than that of the raccoon dog. The fox has higher requirements for animal-based feed and vitamins than the raccoon dog. The fox's demand for feed is greatest in summer and weakens in winter. Nutritional needs differ across different biological periods; generally, they are higher during the breeding season than during the non-breeding season, and the diet should be based mainly on animal-based feed, mixed with some plant-based feed.
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