Grazing egg chicken points nutritional control – Waterfowl – China Animal Husbandry Website – A useful animal husbandry website
The nutritional energy required for egg hooks is more nutrient energy. During grazing, the breeding households will provide sufficient nutrition to ensure the daily energy consumption of the egg hooks.
The study shows that nutritional regulation is taken to reduce hen aggressive behavior to increase at least 10% of Nissan Egg quantity and survival rate. According to the current market price conservative calculation, the dietary regulation measures can increase the profit of 20% of the egg chicken breeding group; therefore, nutritional control measures should be considered when developing management strategies for grazing egg hooks.
1. Energy is used to produce or stress
Chickens with poor welfare levels use more energy to stress, so that the energy reduction of ultimate translation into production performance. Because grazing chicken is large (Lomu et al, 2004), chicken has higher demand for diet energy, which needs to provide more dietary energy or occupy some energy for production to meet these activities.
Second, adjust the day grain coarse protein reduction 啄 啄 behavior
Egg consumption in European grazing chicken is gradually increased, and grazing broilers and organic broilers are also very market. The requirements of European grazing chicks are channels that have left to outdoor vegetation. This puts forward a nutritional problem, and the supply of diet must match nutritional needs. On the other hand, grazing poultry is troubled by many factors outdoors, such as nutrition quantities and quality ingestion in pasture. The grassland can be provided for the nutrients provided by chickens, only some of the cellulose and vitamins. Chicken eats insects to obtain some proteins, but if there is no animal protein in the diet, it is difficult to determine if the chicken has a sufficient amount of high quality protein.
The effect of diet protein on the behavior of the squat may be due to insufficient protein or specific amino acid supply, or depending on the type of protein feeding. When feeding low-protein diet and excess plant protein, it may cause lack of protein intake or lower protein supply. Related Critical Behavior The incidence in grazing eggs is high, the lack of protein is closely related to the occurrence of 啄 behavior (Ambrosserl and Petersen, 1997), the protein is lower than the needed chicken than fed high protein diet Chickens have high mortality. In addition, it is not good to cause a long-time chicken feathers in the dietary amino acid. In fact, the amino acid is not ideal for chickens and thereby causingThe mortality rate is high (Vankrimpen et al., 2005).
While breeding excess plant proteins increase the incidence of 啄, there is no test data as support. A study conducted by Rich-Ter and Hartrag (2003) showed that only the feeding of plant proteins was higher than the mortality rate caused by chickens of animal proteins. McKeegarn et al. (2001) observed that the baked chicken feeding the plant protein has a higher 啄 啄 incidence. Obviously, when feeding different levels or types of proteins, there are many factors that causing the inconsistency in the behavior and production reactions, including the variety, diet type and test conditions of the chicken. However, the above studies provide a conclusive evidence: the act of ambulatory behavior is affected by the supply of diet.
Third, the effect of dietary fiber on the behavior of chicken
Esnail (1997) The study showed that there was a direct relationship between the yield and the incidence rate of the related mortality. Typically, the incidence of 啄 is reduced as the level of food fiber is increased. Insoluble fibers seem to play a particularly important role in indirectly changing the behavior of chickens, insoluble fibers are nutritious diluents, and they have no effect on the nutrition of chickens, but the intestinal tract of chicken plays a rapid filling effect. Therefore, when chickens eat the diet rich in insoluble fibers, they have to be extended during the feeding, thereby reducing the problem of 啄: Huber-Eicher and Wechsler (1998) think that the chicken is spent on foraging Time long. Behavior of other chickens will be reduced. Hartinl et al. (2002) believes that the diet is irritable fiber to reduce the 啄 啄 啄 啄 行 行 行 行, this shows that the illegal fiber is an important solution to the dietary rhizophobility. Harci et al. (2003) confirmed that the raw food feeding high fiber diet was reduced by “leaving the slot”, and added birth.
Although the problem of dietary fiber affects behavior, there may be no simple answer, but due to balance nutrition, high-level fiber content in diet will force chicken to take more time to meet energy needs. Studies have shown that when the egg hen eats the diet containing high-level fiber, the mortality associated with the car will decline. Provide plenty of eggs to chickenWhite plus high levels of fibers are feasible because animals will satisfy demand. However, the need for fibers must also be balanced with other nutrients.
Form, the development of the nutrition can improve the profit margin
As mentioned above, the welfare level will increase the animal metabolism such that energy is transferred from the production to stress. For example, G1ATZ (2001) studies have found that a poor hen (one of aggressive 啄 啄 behaviors) will eat 16% of feed and decrease in egg production. Through a series of studies, Harcini et al. (2003) explained how the dietary fiber affects the production performance of egg hooks. Figure 3 shows that the mortality rate after the food and chicken eat high fiber diet, the survival rate is increased, and the amount of hen has improved, it is obvious that the increase in survival (low mortality) and Nissan egg increases Horizontal increase. Veterinary drugs joined 1866.TV
By observing the effects of egg hooks on the production performance, it is conceived four scenarios (see Table 1), simply, 啄 and related tricks will affect grazing egg chicken The profit of a farm farm. Take a 300 grazing egg farm farm as an example, cost and revenue compute. Scenario 1 is a farmer with high welfare level. It is assumed that the farm does not have a problem, no need to use dietary regulation measures to control, and the farm profit is good. In the scene 2, she has caused some chicken’s feathers to becomes poor, and she has become a very serious problem, but although the feed cost is increased, the amount of eggs has not been affected. But in the scene 2, the profit space fell by 18% due to the increase in feed costs.
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