1. Establish a good microclimate environment in the chicken house. Maintain a reasonable stocking density; equipped with adequate feeding equipment; fast and uniform fabric; maintain good ventilation; strengthen litter management; supply high-quality, full-priced feed; careful management, reduce stress, create a good environment for chickens.
2, according to the growth and development rules of breeders strictly control weight. At the end of the 4th week, the body weight should reach the standard or slightly exceed the standard. There should be no chicken below the standard weight, so that the breeder has a better skeleton development, because more than 85% of the skeleton development of the breeder at the end of the 8th week has been basically completed. Ten weeks ago, as much of the breeder's weight as possible was controlled by feed control to the standards recommended in the Feed Management Manual; weekly weight gain should be achieved after 10 weeks, especially after 15 weeks; weight should be re-weighted for chickens that are overweight after 10 weeks. The curve cannot be forced back to the standard curve, but it should grow parallel to the standard curve. Weighed at least once a week before 40 weeks; once every 2 weeks after 40 weeks, in order to timely grasp the growth and development trend of breeder chickens, timely adjustment.
3, strengthen lighting management. Not only should the importance of lighting time be taken into account, but the effects of light intensity should not be ignored. The response of chickens to light stimulation depends on whether the body weight is up or down, whether the flock uniformity is good or not, and whether the nutritional intake is sufficient. Therefore, according to the above three points should be timely light stimulation, and pay attention to uniform light. At the same time, the intensity of the light stimulus should be at least 10 times more than before the stimulus, and the effect is best.
4, to maintain a good uniformity of breeder. To prevent the problem of poor uniformity, its production value and economic efficiency will be higher. Therefore, the uniformity of the breeder should be grasped from the age of 1 day. The better the uniformity, the higher the production performance of the flock. 10 weeks ago should focus on the regulation of uniformity. The goal of uniformity control must reach 85% or more.
Product Family Description
Incident Light is Reflected Back to the Source
Down to 3 Arcsecond Beam Deviation
Useful for Surveying and Alignment
BK7 Corner Cube Retroreflectors are designed to reflect any ray or beam entering the prism face, regardless of the orientation of the prism, back onto itself. A mirror will do that only at the normal incidence. As a result, corner cube retroreflectors are useful where precision alignment is impossible or time-consuming.
These unmounted retroreflectors are trihedral prisms manufactured from a solid piece of BK7 glass. They have uncoated reflective faces and rely on total internal reflection (TIR); we also offer backside-coated Corner Cube retroreflectors which employ second surface specular reflections which minimize changes in polarization to <10° with minimal introduced ellipticity.
BK7 Corner Cube Retroreflectors are available with the dihedral surfaces either uncoated or coated with silver. The silver coating provides a larger acceptance angle while the uncoated option, which relies on total internal reflection, provides optimum reflectivity. The input face is available uncoated or coated with an antireflection coating optimized for either visible wavelengths or near infrared wavelengths.
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