User talk:Dr Ahmed Ali

Welcome!
Hello, Dr Ahmed Ali, and welcome to Wikipedia! I hope you like the place and decide to stay. Unfortunately, one or more of the pages you created, such as Shaheen dvm doctors, may not conform to some of Wikipedia's guidelines, and may not be retained.

There's a page about creating articles you may want to read called Your first article. If you are stuck, and looking for help, please come to the Teahouse, where experienced Wikipedians can answer any queries you have! Or, you can just type help me on this page, followed by your question, and someone will show up shortly to answer your questions. Here are a few other good links for newcomers: I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes ( ~ ); this will automatically produce your name and the date. If you have any questions, check out Questions or ask me on my talk page. Again, welcome! Theroadislong (talk) 18:06, 2 February 2017 (UTC)
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Your contributed article, Shaheen dvm doctors


Hello, I noticed that you recently created a new page, Shaheen dvm doctors. First, thank you for your contribution; Wikipedia relies solely on the efforts of volunteers such as you. Unfortunately, the page you created covers a topic on which we already have a page – Cloning. Because of the duplication, your article has been tagged for speedy deletion. Please note that this is not a comment on you personally and we hope you will continue helping to improve Wikipedia. If the topic of the article you created is one that interests you, then perhaps you would like to help out at Cloning – you might like to discuss new information at the article's talk page.

If you think the article you created should remain separate, you may contest the nomination by visiting the page and clicking the button labelled "Contest this speedy deletion". This will give you the opportunity to explain why you believe the page should not be deleted. However, be aware that once a page is tagged for speedy deletion, it may be removed without delay. Please do not remove the speedy deletion tag from the page yourself, but do not hesitate to add information in line with Wikipedia's policies and guidelines. If the page is deleted, and you wish to retrieve the deleted material for future reference or improvement, then please contact the deleting administrator, or if you have already done so, you can place a request here. Additionally if you would like to have someone review articles you create before they go live so they are not nominated for deletion shortly after you post them, allow me to suggest the article creation process and using our search feature to find related information we already have in the encyclopedia. Try not to be discouraged. Wikipedia looks forward to your future contributions. Theroadislong (talk) 18:06, 2 February 2017 (UTC)

PUBERTY

In the male, puberty can be defined less succinctly then in the female. Generally, it is considered the time when spermatogenesis start. it defined as the time when fertile spermatozoa are in the ejaculate, the age will be 10to 12 months for bulls,3 to 5 months for bucks, 4to6 month for arms, 4 to8 months for boars, and 13 to18 months for stallions. However, spermatozoa are formed in the somniferous tubules several weeks before they are seen in the ejaculate .in bulls. The time form appearance in the somniferous tubules to appearance in the ejaculate is approximately 10 weeks. A number of other changes can be seen in males, starting several week before fertile spermatozoa are in the ejaculate these include change in body conformation ,increased aggressiveness and sexual desire ,rapid growth of the penis and tests, and separation of the penis from the prepuce so that extension of the penis is possible. Timing of these events varies with species Development of testicular function is primary to the change observed as puberty approaches. This development is regulated by the endocrine system .LH is necessary for the development of leydig cell and for their function. However during the period around puberty synergistic effects from FSH and prolactin have been reported. FSH and prolactin appear to make the leydig cell more responsive to LH in young male by increasing and maintaining receptor sites for LH.as the leydig cells develop and become function increasing concentration of testosterone with stimulate most other change associated with approaching puberty synergistic effect from testosterone and FSH stimulate development to sertoli cells, production of androgen binding protein and preparation of the somniferous tubules for production of spermatozoa As with the female, puberty is not sexual maturity in the male .some roms and boar are used for breeding and are highly fertile after about 6 months of age. However, the testes side and total production of spermatozoa increasing until about 18 months of age .and bull and stallion total production of spermatozoa will increase at least to 3 years of age .it is recommended that stallation not be used heavily until they are 3 to 4 years old .there is high correlation between the size of the testes and total spermatozoa production All factors which effect age at puberty in females will effect age at puberty in males .genetic effects on puberty are seen by comparing species are breeds with in a species. Any adverse environmental factor which slow growth rate will delay puberty .for example male lambs on a low plane of nutrition may not reach puberty until after 12 months of age.