Winter layer hen farmers are affected by many factors such as breeding technology, heat preservation and cold protection, sunlight, ventilation facilities, environmental conditions, etc., resulting in varying degrees of egg production decline in layer flocks. Today, let's talk about the adjustment plan of the laying hen feed formula in winter, look at how to adjust the laying hen feed during the peak egg production period in winter! 1. The adjustment of the winter layer formula should follow the following principles: (1) Energy adjustment When the ambient temperature is too low, the maintenance requirements, feed intake, and nutrient conversion efficiency of the laying hens will change, and corresponding adjustments should be […]

According to the "ideal protein" theory, the protein requirement of piglets is essentially the amino acid requirement. Studies have shown that piglets are not sensitive to low-protein diets. The key is to ensure the balance of various essential amino acids in the diet. Therefore, by adding some amino acids that are lacking in the diet, when the dietary protein level is low (usually 18%), the amino acids can be balanced and still achieve a good feeding effect. The first, second, third, and fourth restrictive amino acids in piglet diets are lysine, threonine, methionine and tryptophan, respectively. Low-protein feed has the advantages of reducing the incidence of piglet diarrhea and diarrhea,

In poultry breeding, for better growth of poultry, we will use a combination of green and coarse feed to feed poultry and promote poultry growth. What are the green and roughages commonly used for poultry? What are the nutrients? Let's take a look together!　　 1. What are the green and roughages commonly used for poultry? Green fodder: cabbage, cabbage, wild vegetables, carrots, etc.; coarse fodder: alfalfa grass powder, locust leaf powder, pine needle powder, etc.　　 2. What are the nutrients?　 (1) Chinese cabbage The water content in fresh cabbage is as high as 94%-96%, the metabolic energy is 375-630 kJ/kg, the crude protein is 1.1%-1.4%, the vitamin content is more,

The chemical name of baking soda is sodium bicarbonate. It is a white crystalline powder, soluble in water, and slightly alkaline. It can neutralize stomach acid and dissolve mucus when taken orally. Let's take a look at the role of adding baking soda to the feed and the precautions for use!　　 1. What is the function of adding baking soda to the feed? Adding baking soda to livestock and poultry feed can effectively improve the digestibility of the animal's feed, accelerate the utilization of nutrients and the excretion of harmful substances, and increase the animal's weight gain; it can make the animal's resistance and immunity The strength is always maintained

Laying hens during the high-production period are those with an egg-laying rate of over 88%. In order to maintain their higher egg-laying rate, egg weight and better egg quality, they should be provided with nutritious chicken feed. 1. In order to meet the nutritional needs of high-yield laying hens, the protein in the feed should be controlled above 18%. At the same time, appropriate amounts of amino acids, vitamins, and minerals should be added to the feed. The physiological production needs of laying hens. 2. In order to allow high-yielding laying hens to take in sufficient nutrients, attention should be paid to supplementary feeding at night (especially in winter and

The feed sources for rabbits are wide, with many types and abundant resources. The following are commonly used: (1) Green feed is the favorite feed for rabbits, it is rich in protein, vitamins and minerals. Such as various pastures, weeds, wild vegetables, leaves and green crops, vegetable leaves, etc. (2) Juicy feed refers to the roots, tubers and melons of crops. This type of feed has high moisture content, less crude fiber, is crunchy and juicy, and is generally fed in winter when it is lack of green. Mainly include carrots, pumpkins, potatoes, sweet potatoes, and beets for feed. (3) Coarse fodder includes crop stalks, husks and dried vegetables. This

1. Reasonable design of fish feed production formula Before designing a feed formula for fish, it is necessary to clarify the type and growth stage of the fish to be fed to determine the level of nutrients such as protein and energy in the fish feed. It is necessary to meet the needs of protein for fish growth, and to make the ratio of energy to protein moderate. Both too high and too low energy-to-protein ratios are not conducive to fish growth. When designing the feed formula, the relationship between the nutritional level and bulk density of the feed should also be considered. It is necessary to ensure that the

For aquaculture production, a single feed cannot meet the nutritional needs of animals. Production practice has proved that only through the scientific collocation of various feed ingredients can we obtain compound feed with sufficient nutrients, balanced nutrition and good palatability.　　 The compound feed for poultry is composed of a variety of feed materials in proportion to the nutritional needs and feeding characteristics of the poultry. The determined mix ratio of various feed materials is the feed formula for poultry. To design the formula of poultry compound feed, it is necessary to study the nutritional principles of poultry, determine the nutritional requirements of poultry (feeding standards); study the characteristics of poultry

1. The effect of protein on the immune function of fish feed and shrimp feed: if too much protein is ingested, the protein that cannot be digested and utilized will be excreted in the form of nitrogen, which not only reduces the body's utilization efficiency of protein, but also increases water quality management.The pressure is also easy to cause intestinal diseases. Under relatively suitable protein level conditions, the balance of amino acids will not only enable fish and shrimp to grow faster, but also their immunity will be enhanced. 2. The effect of fat on the immune function of fish and shrimp: Fat, especially essential fatty acids, is an important

Although broiler chickens grow rapidly, the meat quality is not good and the taste is not good. Here are some ways to improve the quality of broilers for reference. 1. Add flavoring agent Adding seasoning spices (such as cloves, ginger, sweet pepper, etc.) to the feed of fattening broilers can not only stimulate the appetite of the chicken, but also improve the quality of the chicken, make the chicken taste better, and keep it fresh for a long time. Because These spices have the dual effects of antiseptic and disease prevention, can improve the quality of chicken meat and extend the shelf life. The formula of the flavoring agent is

The feed for ostriches mainly includes two kinds, green feed and concentrated feed. The combination of the two feeds will have a better breeding effect.　 1. Ostrich feed classification (1) Green feed　　 The ostrich feed is mainly green feed, which accounts for about 70% of the total diet. Green feed mainly includes a variety of forage grass, and adult ostriches need 2.5-5 kg ​​of green feed per day. Green feed requires freshness, no decay, and no pesticide pollution. Chop it up before feeding, the length is 0.5-3 cm, and put it into the trough for free feeding. Although ostriches can digest crude fiber, straw and coarse feed with a high

In the process of growth and development of meat donkeys, in order to maintain their own health, they can effectively exert the production potential of donkeys and accelerate the growth and development stage of donkeys. Meat donkeys at different growth stages require different levels of nutrition during the fattening period. Donkey feed additives are rich in vitamins, strengthen nutrient absorption, prevent the lack of trace elements, keep them in the best health condition, and exert great growth potential. 1. Green rough collocation　　 Generally, roughage contains less carotene and low phosphorus content, while the content of green juicy feed and germinated feed is higher, and the content of calcium and phosphorus