The management of broiler chickens is complex and tedious. Livestock management personnel cannot expect sustained economic benefits based solely on one or two focal points. assessmentEgg laying performanceAt that time, most people pay attention to weight and weight gain, and compare these data with the standard weight curve. However, this is not an effective breeding technique as the weight of the hens is not an indicator of subsequent economic benefits.
This article mainly discusses the method of measuring the economic benefits of chicken flocks not through weight (previously a standard) but through nutritional intake. Providing sufficient nutrients at the appropriate time can help chicken flocks establish correct egg laying performance.
Timing is key
Increasing nutrient intake at the wrong time will increase the mortality rate of the chicken flock, reduce peak egg production, and overall egg production performance. The following are recommendations summarized by Kebao Company based on chicken breeding research and effective data provided by customers around the world.
Peak egg production rate
Since the chicken coop is the place where the analysis results are generated, it is also the place where the analysis begins.Although a complete egg laying cycle is crucialThe peak egg production rate determines the economic benefits during this period75%The sales revenue. In other words, if the peak egg production rate of the chicken flock is poor, the flock will have75%The probability of not achieving the expected benefits.Every increase in peak egg production rate1%Will increase1.6 TE/HH（Total egg quantity/henhouse）.Although the factors that occur after the peak egg laying period are important, their impact is relatively small because they are only related to egg production. However, the energy intake during this period, from receiving light stimulation to producing a single hatching egg, has a significant impact on the survival rate and subsequent egg production rate of broiler chickens.
Radical feeding of chicken flocks that are not ready to receive light stimulation will have a negative impact on the economic benefits of the flock. However, aggressive feeding of chickens that are ready to receive light stimulation will not have any negative effects. Light stimulation is one of the input items that breeding hens must accept for good economic benefits, but from now until the peak egg laying period, hens must receive standardized health signals through energy intake.
The response of hens to light stimuli is determined by their health or overall physical condition. Health signals refer to all variable factors (identified and undetermined) that can cumulatively affect the performance of hens.After receiving light stimulation, controlling nutrient intake is the primary driving factor for defining the health status of hens. The current chicken breeding ingredients provide excessive supply of all nutrients for hens, except for metabolizable energy, so the intake of energy nutrients should be limited. After entering the peak egg laying period, chicken flocks should increase their energy intake, but body weight also increases along with egg production rate, which will increase mortality and reduce total egg production.The energy supplied exceeds the oxidative capacity of the hen to convert feed energy into muscle and egg production, leading to an increase in mortality and unnecessary stress.
Muscle mass
Weight is a measurement signal of the physical health status of a hen. The lean meat content (breast shape) of hens is a key indicator of their health status.Under the current management system, the total fat required for healthy hens has become less important. Fat is necessary for proper reproduction and development, but like most things, the opposite is true. According to research, low body fat is required for sexual maturity. fromfifteenDuring the period from gestational age to light stimulation, increasing food intake and weight gain can enable hens to store sufficient fat for the development of their reproductive system.
Light stimulation
When the hen receives light stimulation5%There is no significant correlation between energy intake and the survival ability of hens during egg production. If the appropriate muscle mass is reached during the light exposure period, the energy increase of the hen should be reduced during this period. Attempting to correct errors related to improper management of the little hen is not timely.If the chicken flock is not ready to receive light stimulation, delaying the light stimulation time is more beneficial than increasing the feeding amount after light stimulation. During this period, the focus should be on reducing stress related to transfer and reproductive system development, rather than weight gain.During this period, the average weekly energy increase of each chick cannot exceednineThousands of calories.
Linking egg production rate and energy intake
There is a significant correlation between energy intake and muscle accumulation with egg production rate, which is a major factor affecting economic benefits. Therefore, to a large extent, the effect of body weight on the lifespan of chicken flocks is negligible before undergoing light stimulation.
The key to energy intake is to closely monitor the crude protein and amino acid content in the feed. Although increasing the intake of crude protein can improve the symmetry of the chicken flock, it can also lead to overweight, resulting in the need to limit food intake in the later stages. From the perspective of a single chicken, the best approach is to lose weight as early as possible and then implement later dietary restrictions. From the perspective of the chicken flock, a separation line should be set between the ideal symmetry of the flock and overweight. Therefore, it is crucial to strictly follow this line and not cross it, in order to prevent hindering the growth progress of the chicken flock.
In addition,tentofourteenThe energy intake of Zhou aged chicken flocks is another important factor affecting the economic benefits of breeding chicken flocks. Analysis of chicken flock data shows that increasing the energy intake of breeding chickens during this period can effectively promote egg production rates regardless of how much weight they gain.From this, it can be seen that there is a positive correlation between weight and energy intake, but the impact of weight gain is relatively small compared to energy intake.
Therefore, the secondary focus should be on weight control. From thefourteenDuring the period of light stimulation from Zhou to Zhou, the average weekly energy increase of the chicken flock should beeighteencard/only/Oh my god. Due to the fact that the weight of chicks is an important indicator of feeding needs and environmental stress, it is still necessary to monitor their weight at all times, but the importance of energy intake cannot be ignored.
Find a suitable solution
We cannot simply control or solve the economic benefits of chicken flocks by comparing them with standard weight. Although each chicken flock has similar health signals, it is still necessary to consider the specificity of each chicken flock. To achieve sustained and good economic benefits for chicken flocks, the degree of changes in health signals should be obtained based on the situation. There are many factors that affect the economic benefits of breeding chicken flocks, but the primary factor in achieving good economic benefits for meat chickens is energy intake.
Long term energy accumulation intake cannot effectively manage chicken flocks. There are some specific time frames in the life of a breeder chicken（4-6During the week, it is necessary to strictly control energy intake, as well as during other periods where energy intake needs to be slightly controlled.A chicken breeding plan may not be applicable to all chicken flocks, and an effective breeding plan for one customer may not necessarily be applicable to other customers.Therefore, individualized analysis should be conducted on the special needs of chicken flocks in order to develop targeted solutions.
