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Duck and duck rearing management technology
Feeding and management of the first and second stages of laying The main point of feeding and management is to raise the peak of egg production as soon as possible. Therefore, it is necessary to gradually increase the level of dietary nutrition and increase the light time for feeding times. The specific approach is: To do meticulous breeding and management First of all, do a good job in satiety, fullness, cleanliness and quietness. The so-called fullness is to let the ducks eat well, generally from the 120th day of age gradually change the feed to the full price of the egg production period, gradually improve the feed quality (ie nutrient concentration), increase the number of feeding (4 times during the day, at night 9 -10 more feeds 1 time). Each time the amount of added material should be appropriate, not too much, so as not to feed the acid in the tank, deterioration and wastage, but not too little to meet the normal needs of the duck. It is enough to ensure that the supply of drinking water is adequate and clean. Drinking fountains preferably use nipple-type drinking fountains, which not only ensure the supply of drinking water, but also avoid the feed waste caused by the duck's eating behavior characteristics; plastic tanks or trough-type drinking fountains can also be used, but the location should be appropriate. At the same time, the sinks and troughs should be cleaned in a timely manner to ensure their cleanliness as well as the water and feed they contain. Cleanness means keeping the duck house clean and hygienic, and cleaning and disinfecting it regularly and other utensils. Static refers to keeping duck houses as quiet as possible to avoid disturbing duck groups. Because the duck is at the beginning of a new stage of life, the spirit is excited, the action is abnormal, it is very sensitive to environmental changes, and it is easy to panic, and once the frightened group will affect the egg production. At the same time, we must observe the dynamics of ducks, find problems at any time, and solve problems at any time. The small end of the egg-shaped egg is not fed well in the morning, and the small end is small and owes to food. The normal shell is smooth, even and thick. There are trachoma or rough, or even soft shell, indicating poor feed quality, especially calcium or vitamin D deficiency, should increase calcium and vitamin D content in the feed. Looking at egg production time, the normal normal egg production time is between 2 o'clock in the night and 8 o'clock in the morning. If the laying time is delayed, or even during the day, or the egg production time is not concentrated, indicating that the feed quality does not meet the requirements, the concentrate should be added immediately. Egg weight Most egg breeds have an initial egg weight of about 40 grams. By the age of 200 days, the egg weight can reach more than 90% of the standard egg weight of the variety. From 230 to 250 days, the standard egg of the product can be reached. weight. In the early stage of egg production, the weight of eggs continues to increase, but the momentum of gaining weight cannot be excessively fast. Otherwise, it is indicated that the cultivation is not good and the management is not proper. It is necessary to find out the reasons in time and improve them. Seeing the egg production rate The egg production rate in the early stage of laying is continuously rising. Ducks raised in early spring rise faster, and the 200-day-old (not later than 230 days old) should enter the peak of egg production (ie, the egg production rate reaches 90% or so). If the egg production rate fluctuates or even decreases, it is necessary to look for reasons from the feeding management. Observing the weight change of weight-bearing ducks has a great correlation with the egg production situation, so observing the weight changes of ducks and ducks and controlling the weight of ducks according to the growth law is an important technical measure. After entering the laying period, the ducks were relatively stable in body weight, or only slightly increased, indicating that proper feeding and management; significant decline in body weight or increase, all indicate problems with feeding and management. In the period of 201-300 days, the weight of ducks should be measured on a fasting basis every month. Each time the weight of the duck should be measured by random sampling, the number of ducks weighed should not be less than 10% of the population. In general, at the time of production, the weight should be maintained at 1,450 grams, with slight increase and decrease thereafter, and no more than 1,500 grams at the end of elimination.
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