Low Pesticide Goji Berry, also called EU standard Goji Berry. Ningxia goji berry enjoys a great fame around the global due to its high quality standard; meanwhile, it is the only protected product of geographical identity in China, goji berry has a great popularity describes as "goji berry of the world is in China, goji berry of China is in Ningxia and Ningxia's goji berry is the best".
1.Type Genus: Multi-branched deciduous shrub of Solanaceae Lycium
2.Another name: wolfberry, red berry, red pendant, blood berry, eye-brighten berry, Tzi-fruit, hoof berry, milk berry, immortality grass, sky-essence grass, wolfberry
3.Biology Character: illumination preferable, saline-alkali tolerance, fertilizer tolerance, drought-resistant, water stain should be sustained.
4.Medicinal Parts: goji berry/ goji berry leaves, goji berry roots. Low Pesticide Goji Berry Low Pesticide Goji Berry,Low Pesticide Goji,Low Pesticide Residue Wolfberry,Low Pesticide Dried Goji Berry Ningxia Bairuiyuan International Trading Co.,Ltd , http://www.cngoji.com
First, estrus identification Asses's long estrus period, therefore, in order to ensure timely mating time and reduce the number of breeding, to increase the female donkey's conception rate must be estrus, ovulation examination. The method of estrus identification is: external observation, test feeling, vaginal examination and rectal examination. Frequent rectal examinations are usually based on external observations.
Second, the same period of estrus on the estrus cycle of the estrus process is called the same period of estrus or synchronous estrus. At the same time, estrus technology mainly uses hormone drugs to change the regularity of the natural estrus cycle, so that the process of adjusting the estrus cycle is unified, so that the group's female donkey concentrates on estrus and ovulation within a specified time. The significance of estrus in the same period:
One is conducive to promoting artificial insemination;
The second is to facilitate the organization of production;
The third is to increase the reproduction rate;
The fourth is to create conditions for the study of donkey embryo transfer.
Third, artificial insemination and natural mating Artificial insemination refers to artificial means to take a certain amount of semen into a certain part of the genital tract of the female animal and make the female animal conceive. Artificial insemination technology has been applied in animal husbandry for nearly a century. This breeding technology has been widely adopted in various domestic animals and some wild animals. The meaning of artificial insemination:
The first is to improve the mating performance and breeding value of the fine male donkey.
The second is to accelerate the improvement of varieties.
The third is to reduce the cost of feeding and management.
The fourth is to increase the fertility rate of female donkeys.
Fifth, semen can be stored for a long time.
The sixth is to promote the development of other reproductive technologies.
(1) Artificial Insemination: Artificial insemination procedures include rectal examination, sperm collection, seminal dilution, and insemination. The entire job requires the skilled technicians to be skilled in operation, to be strictly disinfected, to operate carefully, and to accurately configure the diluent and the chemical solution. To achieve these requirements can achieve good results.
(2) Natural mating: In the natural mating period, the male donkey close to the estrus, sexual impulses, courtship, erection reflex, cross-mother ass, penis inserted into the female donkey vaginal twitch several times, ejaculation in about 0.8 minutes, Individual male asses are up to 1 minute long. Mating time is generally 1 to 1.5 minutes. The estrous female donkey cervix is ​​open and in estrus, the cervical canal can hold 2 to 3 fingers. The male donkey's penis was fully erected, the enlarged glans pushed toward the vaginal dome, and the urethral projection was inserted into the cervix. The twitching of the penis produces a negative pressure on the cervix, and semen is absorbed into the cervix or uterus during ejaculation. Due to the long estrus of the female donkey, it is more difficult to grasp the breeding time, but the time that the male donkey's sperm maintains fertilization within the female donkey's genitals is as long as 3 to 5 days. Therefore, taking the alternate breeding on the next day does not affect the female donkey's fertility rate.
IV. Pregnancy diagnosis Donkey pregnancy test should be performed about 18 days after the insemination, and the first pregnancy test should be conducted to prevent the false estrus. Pregnancy tests often use external observation, vaginal examination, rectal examination and other three methods.
(1) The external examination is to judge whether the pregnancy is or not by visually observing the external performance of the female donkey.
(2) vaginal examination that is to determine whether the pregnancy by checking the vaginal mucosa and cervix.
(3) Rectal Examination As with the estrus assessment, the presence of ovary and uterus is checked by rectal examination to determine whether or not the pregnancy occurs.
At present, the breeding control techniques applied mainly include: estrus identification, artificial insemination, estrus in the same period, induced estrus, superovulation, embryo transfer, induced childbirth, and cryopreservation of semen.