Egg laying chickens have a certain degree of regularity in egg production, reflecting the pattern of change in egg production during the entire laying period. After the chickens are put into production, the egg production rate increases rapidly in the first 5 to 6 weeks, and then it falls steadily to the end of the laying season. The egg production curve is to mark the weekly egg production rate of the hen on the drawing and connect the multiple points. You can see the characteristics of the egg production curve: 1. Rapid increase in egg production after opening, at this time egg production rate doubled each week, that is, 5%, 10%, 20%, 40%, after reaching 40% weekly An increase of 20%, ie, 40%, 60%, and 80%, reached the peak of egg production at the 6th or 7th week (the egg production rate was over 90%). The peak of egg production generally lasted for more than two weeks. After the peak, the curve dropped very smoothly and showed a straight line. The rate of decline of the standard curve is the same every week. The average weekly decline does not exceed 1% (about 0.5%) until the 72-week-old egg production rate dropped to 65% to 70%. 2. If egg production declines due to improper feeding management or disease, etc., egg production rate is lower than the standard curve can not be fully compensated. If it happens at the rising stage of the egg production curve, the consequences will be extremely serious, and the performance will be interrupted by the increase in the egg production curve of the flock, and the egg production curve will drop, and it will never reach its standard peak. At the same time, before the egg production curve begins to decline, the curve is “arc†and the peak is lower than the percentage of the standard curve. After that, the egg production per week will be reduced by equal proportions. The drop in egg production, as occurs during the decline of the egg production curve, does not have as much effect on the egg production as the increase. In short, the actual egg production status of the flock can only be in line with the standard curve under good husbandry and management conditions.
Products with dynamic certral-vein indwelling catheter, center, can be used for many times
Repeated pucture infusion, injections, standard
Injection locking joint heparin sodium can prevent blood backflow and soildfication
Screw threads standards for products.
Combi-Stoppers are used to close a Luer or luer lock access on other devices.
The devices are compatible with luer accesses.
Combi Stopper,Syringe Stopper,Luer Lock Combi Stopper,Luer Lock Stopper Luer Taper
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