A look at the horns: Luyang male ewes have horns, about a month or so corner base appears, and "Huyang" has no horns for life. Second, look at the legs: Lu's leg is thin and tall, and other sheep are short and thick. After the leg is tall and horny, it is indeed the Luyang, and then: Three body heights: The adult sheep with fangs should use the “quantitative sheep pole†to measure the body height, and the lamb to look outside. From the perspective of the horns and legs, it is basically true that it is a true Luyang. However, if it can be used for “breeding,†it must be measured with “measured amount of sheep rods.†(Let the sheep stand upright and stand beside the front legs. Vertical to the height of the back). The body height of the rams that straddle the teeth reaches 95 cm or more, and the height of the ewes that straddle the teeth reaches 80 cm or more. Four look at the mouth (to see the teeth age): then open the lower lip of the sheep, see the age of teeth, cut off the age, as the basis for pricing. The age of the sheep should be recorded in the “archiveâ€; when there is no file, the eight “cutting teeth†in the sheep's jaw can be seen at a glance: the middle pair has “incisors†(front teeth), and the two rows are arranged in two “internal intermediate teethâ€. "Outer intermediate teeth" and two "dental teeth". One week after the lamb’s birth, a pair of “milk teeth†grew. About 1 month, 8 teeth (milk teeth) are long. It must be known that the sheep “on the upper jaw†has no teeth, and only the gums have no teeth. The rules for replacement of milk teeth are: 1 to 1.5 years old: For a pair of "incisors" (tooth). Lambs born to old sheep change their teeth. 2 years old: For a pair of "internal teeth" (4 teeth). 3 years old: For a pair of "outer middle teeth" (6 teeth). 4 years old: For a pair of "caries" (Qikou). After the eight mutton teeth are changed at the age of four, they are still young sheep. The reproductive performance can still be 2 to 3 years (the longest sheep can live 25 years), and there will be no reproductive value. Therefore, 5 to 6 year old male and female ewes must timely feed the sheep and sell the old lamb meat. The age of teeth after Qikou is: "Five Shakes and Six Shakes and Eight Shakes, the teeth have not shaken before the first pull seam". Eight-year-old broke (ie toothless). Five to see the vulva: To open the tail of the ewe to see if the vulva is slender like a thread without filthy foul smell. Those who are round and tight in the vulva are mostly infertile sheep, and sticky smelly people are signs of metritis. Six milk: After watching the vulva and then touch the breast, if it is an adult ewes, the production of the lamb should be loose and flexible; if not produce lambs should be close to the abdomen. Pregnant sheep can determine the length of pregnancy based on the size of the breast. Adult sheep with tight breasts are often given infertile sheep. Also pay attention to the size of the teat and whether it is well-balanced. Small nipples are not optional. Special attention should be paid to whether the breast has symptoms such as hard breasts, nipple ulcers, etc. By the way, I also need to check whether there is a sarcoma-like soft pack in the abdomen - Hernia (small intestine hernia). Seven to see the ear and eyes: pay attention to the size of the ear, ear small should not be planted. Open the eyelids again to see if there is no blood, and the pale ones are suffering from anemia or parasitosis. By the way, we must also see if we have eyelids (one or two eyes). Eight Looks at the tail: Luyang is one of the four major strains of the Small Tail Han Sheep (tan sheep, Tong Yang and Hu Yang). The length of tail does not exceed "hock festival" (back knee), length and width of about 20 to 30 centimeters. Some hypertrophy, some are thin, are not a problem. The key is to have "meat hooks" at the end. China Agricultural Network Editor
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