The egg content is very different from the eggshell formation process. As a result, rations were prepared for on-demand feeding (ie, morning and afternoon rations). In the past 10 years, it was considered that on-demand splitting can significantly improve eggshell quality. It has been reported that the rate of egg breakage decreased from 3.28% in the control group to 3.06%, and the egg production rate also increased. In recent years, we have done many experiments and we believe this method is feasible. Our views are now publicly available for reference by our colleagues who are interested in doing so.
1 The content of eggs based on the need for feeding is mainly protein and fat. The composition of eggshell is: calcium carbonate accounts for 94%, magnesium carbonate accounts for 1%, calcium phosphate accounts for 1%, and organic matter is mainly composed of collagen. About 3% to 4%, eggshell is a series of complex processes through the digestion and absorption of chicken body, and finally formed in the bird uterus. Since the standard of feeding chickens has been used regardless of feeding diet, pay more attention to amino acids, the so-called "nutrition model" is a typical representative. This forms a certain gap with the actual nutritional requirements of the chicken body. The egg content needs about 11 days or so to accumulate without asking for completeness. The formation of the eggshell is only 18 ~ 20h. Sixty to seventy-five percent of the required calcium comes from feed intake, and the remainder is supplemented by bone marrow during an empty stomach. After the eggs are discharged, the lost calcium is supplemented by the diet. Due to the need for separate feeding, organics are based on the essential amino acids above the feed standard (morning diet), while inorganics are based on the calcium carbonate standard for feeding (afternoon diet). This is the main difference between the two feedings. As for the necessary variety of vitamins, macro elements (C1, Na) and trace elements, etc., they must be routinely supplied to meet the nutritional needs of chickens.
2 Due to the importance of feeding, it is possible to compensate for the lack of a unified diet in order to obtain better production results. The first is to solve the problem of eggshell quality, and feeding can increase the authenticity rate of eggs. Feeding and feeding are divided into two and combined into one, so there is not much difference in the total cost of feed. Secondly, compared with feeding, the feeding rate for feeding chickens is more reasonable because of the different feeding, so the egg production rate is also increased.
3 The formula of "dividing into two and combining two into one" is necessary for the preparation of diets for different diets. This is an easy way to summarize in practice. First of all, for the laying hens with full-priced feed, the formula nutrient indicators adopt the parameters of NRC laying hens' mid-range nutritional needs (1994).
After the formulation is completed, it is divided into two according to the special factor, ie, A-day and B-day. The relevant formulas for breaking down A and B diets are as follows:
It is known that the full-day diet requires A-party: A-party = full-day A1...............1
It is known that all day's diet requires Party B: Party B = Full Day Food B1...............2
Known Party A seeks full-day food: Full-day food = AA1.....................3
Known Party B seeks full-day food: Full-day food = BB1.....................4
A1 = morning A value / full day value ..................5
B1 = afternoon B value / full day value..................6
When A1 and B1 are entered in formulas 1 and 2, respectively, the nutritional requirements of the A and B parties can be calculated, and the A diet and the B diet can then be formulated. Pills and B1 values ​​are shown in Table 2. These parameters are very convenient for one-day foods divided into two and A and B daily foods combined.
In Table 3, after formulating the full-day ration, the nutritional requirements of the A and B parties were calculated using formulas 1 and 2, respectively, and the A and B diets were based on this formula. Divided into two. As the formula uses amino acids, crude protein is saved. The use of non-phytate phosphorus to calculate phosphorus needs to save phosphorus, thus reducing the pollution of N and P to the environment. With C1, Na instead of quantitative salt and water-saving effect, the summer is not row of thin stools. Due to the sufficiency of sulphur-containing amino acids, the possibility of embarrassment is minimal.
Replacement of soybean meal with 1% to 2% Cologne Powder III can be used for biologics.
4 Because of the need to divide the feeding method according to the daily illumination of laying hens 16h, divided into the morning (5:00 ~ 12:00) with A daily food, afternoon (13:00 ~ 21: 00) with the B diet. The two kinds of rations were packed in bags with markedly different signs, and they were fed twice in the morning and afternoon, and they were eaten freely and eaten well. The remaining material in the tank should be eliminated at 12:00. After 1h empty, begin to give B diet. Before the light is turned off at 21:00, a small amount of feed should be left in the tank. After the next morning light, the chicken can eat a small amount of feed for hunger.
Drinking water and other feeding management are as usual. Do not feed the wrong material.
Author: Liaoning Feed Industry New Technology Research Institute Liaoning Fushun Feed Science Research Institute
1 The content of eggs based on the need for feeding is mainly protein and fat. The composition of eggshell is: calcium carbonate accounts for 94%, magnesium carbonate accounts for 1%, calcium phosphate accounts for 1%, and organic matter is mainly composed of collagen. About 3% to 4%, eggshell is a series of complex processes through the digestion and absorption of chicken body, and finally formed in the bird uterus. Since the standard of feeding chickens has been used regardless of feeding diet, pay more attention to amino acids, the so-called "nutrition model" is a typical representative. This forms a certain gap with the actual nutritional requirements of the chicken body. The egg content needs about 11 days or so to accumulate without asking for completeness. The formation of the eggshell is only 18 ~ 20h. Sixty to seventy-five percent of the required calcium comes from feed intake, and the remainder is supplemented by bone marrow during an empty stomach. After the eggs are discharged, the lost calcium is supplemented by the diet. Due to the need for separate feeding, organics are based on the essential amino acids above the feed standard (morning diet), while inorganics are based on the calcium carbonate standard for feeding (afternoon diet). This is the main difference between the two feedings. As for the necessary variety of vitamins, macro elements (C1, Na) and trace elements, etc., they must be routinely supplied to meet the nutritional needs of chickens.
2 Due to the importance of feeding, it is possible to compensate for the lack of a unified diet in order to obtain better production results. The first is to solve the problem of eggshell quality, and feeding can increase the authenticity rate of eggs. Feeding and feeding are divided into two and combined into one, so there is not much difference in the total cost of feed. Secondly, compared with feeding, the feeding rate for feeding chickens is more reasonable because of the different feeding, so the egg production rate is also increased.
3 The formula of "dividing into two and combining two into one" is necessary for the preparation of diets for different diets. This is an easy way to summarize in practice. First of all, for the laying hens with full-priced feed, the formula nutrient indicators adopt the parameters of NRC laying hens' mid-range nutritional needs (1994).
After the formulation is completed, it is divided into two according to the special factor, ie, A-day and B-day. The relevant formulas for breaking down A and B diets are as follows:
It is known that the full-day diet requires A-party: A-party = full-day A1...............1
It is known that all day's diet requires Party B: Party B = Full Day Food B1...............2
Known Party A seeks full-day food: Full-day food = AA1.....................3
Known Party B seeks full-day food: Full-day food = BB1.....................4
A1 = morning A value / full day value ..................5
B1 = afternoon B value / full day value..................6
When A1 and B1 are entered in formulas 1 and 2, respectively, the nutritional requirements of the A and B parties can be calculated, and the A diet and the B diet can then be formulated. Pills and B1 values ​​are shown in Table 2. These parameters are very convenient for one-day foods divided into two and A and B daily foods combined.
In Table 3, after formulating the full-day ration, the nutritional requirements of the A and B parties were calculated using formulas 1 and 2, respectively, and the A and B diets were based on this formula. Divided into two. As the formula uses amino acids, crude protein is saved. The use of non-phytate phosphorus to calculate phosphorus needs to save phosphorus, thus reducing the pollution of N and P to the environment. With C1, Na instead of quantitative salt and water-saving effect, the summer is not row of thin stools. Due to the sufficiency of sulphur-containing amino acids, the possibility of embarrassment is minimal.
Replacement of soybean meal with 1% to 2% Cologne Powder III can be used for biologics.
4 Because of the need to divide the feeding method according to the daily illumination of laying hens 16h, divided into the morning (5:00 ~ 12:00) with A daily food, afternoon (13:00 ~ 21: 00) with the B diet. The two kinds of rations were packed in bags with markedly different signs, and they were fed twice in the morning and afternoon, and they were eaten freely and eaten well. The remaining material in the tank should be eliminated at 12:00. After 1h empty, begin to give B diet. Before the light is turned off at 21:00, a small amount of feed should be left in the tank. After the next morning light, the chicken can eat a small amount of feed for hunger.
Drinking water and other feeding management are as usual. Do not feed the wrong material.
Author: Liaoning Feed Industry New Technology Research Institute Liaoning Fushun Feed Science Research Institute
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