Selecting high-yielding female ducks can be determined by touching the abdomen and measuring the distance between the pubic bones. The high-yielding duck has a soft abdomen, a large cloacal cavity and a moist, pubic thin and soft, elastic and wide pubic space. At least 4 fingers can be accommodated side by side, with a large distance between the pubic bone and keel protrusions, and at least 5 fingers or more.
Feather luster and pigment extinction can also be used as a basis for judging the high yield and low yield of ducks. The masses have the experience of "Spring duck with one flower and autumn duck with ugly". In short, the ducks in the spring season opened soon, and the high-yield ducks were fine and light like “flowers.†In the autumn, due to the high-yielding ducks producing more eggs, the nutrients were consumed, the pigments faded, the feathers were disorderly and unlustrous, and the belly feathers were contaminated. , and even partially shedding, the image is like "ugly".
If you can choose from 5 aspects before starting production, one is that the feathers are born closely and the gloss is good; the second is that the sternum is hard and prominent, the ribs are hard and round, and the muscles are strong; the third is the long taste, the long neck, and the long body; The eyes are prominent; the fifth is the distance between the pubic bone and the pubis and keel, and the abdomen is wide and soft.
Feather luster and pigment extinction can also be used as a basis for judging the high yield and low yield of ducks. The masses have the experience of "Spring duck with one flower and autumn duck with ugly". In short, the ducks in the spring season opened soon, and the high-yield ducks were fine and light like “flowers.†In the autumn, due to the high-yielding ducks producing more eggs, the nutrients were consumed, the pigments faded, the feathers were disorderly and unlustrous, and the belly feathers were contaminated. , and even partially shedding, the image is like "ugly".
If you can choose from 5 aspects before starting production, one is that the feathers are born closely and the gloss is good; the second is that the sternum is hard and prominent, the ribs are hard and round, and the muscles are strong; the third is the long taste, the long neck, and the long body; The eyes are prominent; the fifth is the distance between the pubic bone and the pubis and keel, and the abdomen is wide and soft.
Energy Abosorbing Lanyard is a connection between Full Body Harness and fixed point. It made of high strength polyester rope. One end with normal karabiner for connect harness, the other end with one or tow big hook. The hook can be connect with fixture. And it with Energy Absorb unit.
It used for high-altitude workers.
Energy Absorbing Lanyard,Shock Absorber Lanyard,Safety Lanyard With Shock Absorber,Safety Lanyard With 2 Hooks
Greateagle Safety Products Co., Ltd. , https://www.greateaglesafety.com