The impact of low feed protein on breeders

Layers are deficient in protein or essential amino acids, birds grow slowly, feed intake decreases, body weight, egg weight or egg production decreases, or body fat increases. Poultry are susceptible to lysine deficiency, which can be seen in chicks with growth arrest, loss of subcutaneous fat, emaciation, abnormal calcification of bones, and also caused decreased pigmentation and upward roll of wing feathers.

Low protein leads to low egg production in breeders, reduced egg hatchability, and feed protein should not be less than 16

The effects of different energy protein levels on the production performance of 28 and 39-week-old Jinghong No. 1 egg breeders provided theoretical reference data for the formulation of nutritional standards of Jinghong No. 1 egg breeders. A total of 1 152 28-week-old Jinghong No. 1 egg breeders were randomly divided into 6 treatment groups according to body weight, and each treatment group had 4 replicates. The two-factor randomized trial designed 2 energy levels (and mj kg) and 3 protein levels

5% and. The rearing period ranges from 28 to 39 weeks of age. The results show that:

The treatment group (energy mj kg, egg white laying rate was the highest, which was higher than that of other treatment groups44% and; The average egg quality of the treatment group was the highest, which was significantly higher than that of the treatment and the group, and there was no significant difference between the other groups. The indexes of feed-egg ratio, daily gain quality and daily egg production in the treatment group were significantly higher than those in the treatment group, and there was no significant difference among the other groups. There was no significant difference in the mortality rate and egg pass rate among the groups. The feed cost of the treatment group is the highest, and the economic benefits of the treatment group are the best, and they are more profitable than the other groups53 and yuan.

It was indicated that at the peak of egg production at the age of 28 to 39 weeks, the optimal amount of energy added was mj kg, egg white.

Chickens fed selenium-deficient feed, after adding protein, die faster?

Hello, it's a pleasure to be able to serve you. As far as I know, in the production process of chickens, in addition to meeting the needs of chickens for carbohydrates, proteins, minerals, vitamins and other major nutrients, it is also necessary to pay attention to adding certain trace elements to their feed. In particular, iron, copper, cobalt, and three trace elements of sock silver are indispensable elements for hematopoiesis in chickens.

Adding an appropriate amount of iron, copper and cobalt to chicken feed can not only promote its health, but also improve the performance of chickens. I suggest that you don't overdose on it, but you can ask the veterinarian about the relevant medications. I hope mine is helpful to you

Summary. Hello dear! This has nothing to do with the feed machine, oh dear.

Chickens usually eat feed such as energy feed, protein feed, mineral feed, special additives, green feed additives, etc. If an appropriate amount of traditional Chinese medicine preparations are added to the feed, the feed utilization rate can be improved and the chickens can grow faster. 2. The energy feed of chickens mainly includes corn, sorghum, wheat, rice, etc., the protein feed includes corn gluten meal, meat and bone meal, whole fish meal, sesame powder, peanut meal, cottonseed meal, etc., and the mineral feed includes shell meal, bone meal, etc.

3.When feeding, it is necessary to ensure that the feed is not moldy, nutritious, and can meet the nutrients required for the growth of chickens. When feeding chicks, they can be fed with chick pellets.

You can start with 5-6 feeds per day, 1 at night, and gradually feed 3-4 times a day. 4.The growth rate of chickens is not only related to feed, but also to temperature.

Therefore, it is necessary to control the breeding temperature so that the chickens grow faster.

Hello dear! This has nothing to do with the feed machine. Chickens usually eat energy feed, protein feed, mineral feed, special additives, green feed additives and other feeds.

If an appropriate amount of traditional Chinese medicine preparations are added to the feed, the feed utilization rate can be improved and the chickens can grow faster. 2. The energy feed of chickens mainly includes corn, sorghum, wheat, rice, etc., the protein feed includes corn gluten meal, meat and bone meal, whole fish meal, sesame powder, peanut meal, cottonseed meal, etc., and the mineral feed includes shell meal, bone meal, etc. 3.

When feeding, it is necessary to ensure that the feed is not moldy, nutritious, and can meet the nutritional needs of chickens. When feeding chicks, they can be fed with chick pellets. You can start with 5-6 feeds per day, 1 at night, and gradually feed 3-4 times a day.

4.The growth rate of chickens is not only related to feed, but also to temperature. Therefore, it is necessary to control the breeding temperature so that the chickens grow faster.

Is it better to make the feed from the feed machine or the feed made by the feed factory?

Homemade good oh dear.

Is homemade feed susceptible to mold?

Pay attention to humidity and storage will not be pro.

Do I need to add some water to make dry feed?

What you need, pro.

Do you want to add a little cooking oil to make the ingredients?

You can add a pro appropriately.

You have to control the amount, dear.

Can you add a little salt to make the ingredients?

It depends on the size of the chicken.

Chicks don't need to be added, oh dear.

Is it good to add some yeast powder?

It is not recommended to add it.

It is not good to control the amount of yeast, and yeast is not very helpful to the growth of chickens.

There are two main types of protein feed: plant-based protein feed and animal-based protein feed, and different protein feeds have different effects on the flavor of Shenchukai chicken and the accumulation of chicken body fat. Due to the fishy smell of fish, the addition of fishmeal to the feed will lead to a decrease in the flavor of the chicken.

The addition of 2% 10% feather meal to broiler diets did not affect their performance, but reduced the content of abdominal fat and carcass fat.

Soybean meal and peanut cake (meal) are the most used in plant-based protein feed, and the proportion of peanut cake (meal) in the later wide feed of commercial broilers should be appropriately increased, because it can improve the meat flavor. Rapeseed cake is an inexpensive protein feed, but when used in large quantities in the feed, it may cause muscle odor due to its glucoside content, such as adding 10% low glucoside rapeseed cake to the feed will reduce the sensory quality of the chicken.

1. Excessive feed feed of breeders has an impact on chicken egg production.

2. Overfeeding will directly lead to abnormal uterine structure, excessive weight, poor egg quality, low hatching rate, high proportion of double yolk eggs and increased mortality due to peritonitis or prolapse.

3. Overfeeding will directly lead to abnormal uterine structure of breeding hens, and excessive weight will lead to a decrease in the immunity of hatched chicks.

4. Ensure the balance of physical fitness and energy intake. Ensure that chickens can consume enough nutrients every day, and there is a material basis for high yield. Factors that affect the maintenance of physical fitness include body weight, egg production rate, egg weight, and ambient temperature.

In order to maintain the durability of the high yield of breeding hens and to maximize the yield of qualified eggs, it is necessary to reduce the feed after the peak. If the breeder eats more than it needs, it can continue to gain weight through fat deposits. The rate of fat deposition is a key factor affecting the egg production rate and fertilization rate after the peak period, so the feeding rate should be adjusted according to the change of body weight and egg production rate to adjust the rate of fat deposition.

The exact timing of the breeder reduction should depend on the growth history of the flock and the condition of the flock. For flocks with a relatively high laying rate, the first reduction should not be earlier than 34 weeks, and the reduction should be carried out gradually.

Systematic reduction of feed rates after peak laying keeps the weekly gain of the flock at 15-20 grams, which can maintain good egg production, fertilization, hatchability and egg weight. Every week, the feeding amount should be determined on the basis of data such as body weight, egg weight, feeding time, daily egg production and flock conditions, and adjusted in time according to the temperature changes in the chicken house. The total amount of material reduction is about 8%-12% of the peak material volume.

The principle of material reduction: first fast and then slow, a week to reduce the material.

Excess - chickens will be picky eaters, which will cause feed waste, and in the long run - will affect the balanced intake of food nutrients.

Problems to be paid attention to in layer feed:(1) In the breeding of laying hens, if the purchase of commercial feed, attention should be paid to the selection of large-scale, well-known brands, must be selected according to different growth and development and production stages, the purchase of corresponding feed.

2) During the brooding period, it is best to use pellet full price feed (crushed cotter material).

3) Concentrated feed can be used during the rearing and laying periods. Concentrated feed should be added to corn (crushed) and bran according to the manufacturer's recommended formula, and then mixed evenly.

4) When purchasing and using feed, you must carefully read the label of the purchased feed to see whether the nutritional indicators are suitable and whether drugs are added. If the purchased feed contains drug additives, we must pay attention to the compatibility, contraindications and dosage of drugs used in disease prevention and treatment.

5) In the selection and use of corn and bran, we must pay attention to the quality and do not use moldy and spoiled.

Nutritional matching, such as the proportion of beans and boobs.

In fact, the feed is mildew, pay attention to the production of aspergillus.

Protein cannot be replaced by other substances, it is the main component that makes up the chicken body and antibodies, enzymes, hormones, etc. If the feed lacks protein, the growth and development of broilers will be affected, the ability to resist diseases will be reduced, and a variety of diseases will easily occur. The protein needs of broilers vary from breed to breed.

1) Fishmeal Fishmeal is the most ideal animal protein for broilers, with a crude protein content of up to 45% 65%, especially methionine, lysine, and cystine are very rich. Fishmeal should be fed with a salt content of less than 4%, accounting for 8% 10% of the diet; If the salt content is higher than 4%, it accounts for 6% 7% of the diet.

2) Bone Meal Bone Meal is a by-product of meat processing, the content of protein in bone meal is 40% 50%, fat 8% 15%, mineral 10% 25%. Fresh bone and meat powder is light red powder with a fragrant smell. The dosage is 8% to 10% of the diet, and it is best mixed with plant-based protein feeds for better results.

3) Soybean meal (cake) Soybean meal (cake) is a by-product of soybean processing, the crude protein content is 45% 48% (40% 43%), and the metabolic energy can reach 10 11 megajoules kg, which is an ideal plant-based protein feed for broiler chickens. The content in the diet of broilers can reach 20% to 35%. When feeding this type of feed, be careful not to feed the chickens with raw soybean meal (cake).

Because raw soybean meal (cake) contains antitrypsin, it can hinder the digestion and utilization of protein by trypsin in the digestive tract.

4) Peanut cake Peanut cake is fragrant, palatable, and has high nutritional value, with crude protein content of about 47%, crude fat of 8% and 10%, and metabolic energy of 10 megajoules. Broiler chickens account for 15% to 20% of the diet.

In the past, the traditional feeding method was to heat the feed and then cook it. With the popularization of scientific knowledge, most farmers and herdsmen and livestock and poultry professionals now know that feed is not scientific, and understand that after the feed is cooked or fried, the nutritional value will be reduced, especially many vitamins will be destroyed. After the green feed is steamed and cooked, if it is not handled properly, it can also cause poisoning.

Therefore, some farmers are raw fed no matter what kind of feed. Experts from the Antibiotic-free Feed R&D Center of Yinuo Tianbang Group believe that this is a bit too absolute.

After most of the feed is heated, the protein structure can be drastically changed, especially the lysine, arginine, histidine, leucine and phenylalanine in the protein are destroyed, so the utilization rate and biological value of feed protein have also changed. Generally commonly used feed, such as gramineous cereal seeds (such as corn, barley, bran, rice bran, etc.), oil cakes (soybean cake, peanut cake, etc.), animal feed (such as bone meal, fish meal, blood meal, etc.), distiller's grains, brewer's grains, etc., once heat-treated, their protein will be denatured, and the biological value of the protein will be reduced.

However, this is not true for all feeds. If soybeans (soybeans, black beans) or soybean flour are properly heated, the biological value of the protein can be improved. Because soybeans contain a trypsin inhibitor, it will inhibit the digestion and utilization of soy protein in the animal.

The presence of this trypsin inhibitor in the animal diet will reduce not only the digestion and utilization of the protein of the soybean itself, but also the digestion and utilization of the protein of the entire diet. Proper heat treatment can destroy the inhibitor of trypsin, thereby improving the biological value of soybean protein. For example, the biological value of raw soybean protein is 57%, which increases to 64% after heat treatment.

For another example, the protein of some leguminous crops, especially peas, is digested and utilized better after decoction, and the utilization of nitrogen can be increased by 20%, and the weight gain of pigs can be increased by 25%. It can be seen that some feeds, such as leguminous seeds and potatoes, can improve the biological value of protein after proper heat treatment (the time should not be too long, otherwise, the protein will be denatured).

Therefore, in the process of raising livestock, the feed is raw or cooked, according to the nature of the feed and its molecular structure, can not be one-size-fits-all and absolute, suitable for raw feed, must be fed raw. Feed that cannot be fed raw must be cooked or fried before feeding. In order to give full play to the role of feed nutrients and the production performance of livestock organisms, improve the utilization conversion rate of livestock to feed, and achieve the purpose of obtaining the highest economic benefits with the lowest feeding cost.