By Peter J. Chenoweth, Steven Lorton
This ebook comprises 19 chapters that debate theoretical and utilized andrology for household, zoo and wild animals. subject matters comprise semen and its elements; sperm creation and harvest; determinants of sperm morphology; sperm guidance for fertilization; functional features of semen cryopreservation; overview of semen within the andrology laboratory; genetic features of male copy; rising ideas and destiny improvement of semen evaluate and dealing with and utilized andrology in cats, canine, fowls, turkeys, sheep, goats, cervids, horses, farm animals, zebu, buffaloes, pigs, camelids, zoo animals and wild animals. it is going to be of use for these educating animal body structure at a tertiary point and a reference for these attracted to male animal reproductive assessment, functionality and in semen overview, dealing with and use for synthetic breeding. on hand In Print
Read or Download Animal andrology: theories and applications PDF
Similar animal husbandry books
Following major advancements in fresh knowing of milk platforms and an explosion in curiosity within the use of probiotics and prebiotics as useful meals Probiotic Dairy items appears to be like at developments within the dairy and reports the most recent clinical advancements in regard to the ‘functional’ features of dairy and fermented milk items and their parts.
Written for and via dairy and foodstuff engineers with event within the box, this new quantity offers a wealth of precious details on dairy know-how and its purposes. The ebook covers units, standardization, packaging, materials, legislation and regulatory guidance, nutrients processing equipment, and extra.
- Dynamics in Animal Nutrition
- Animal Abuse and Unlawful Killing: Forensic veterinary pathology
- Sheep nutrition
- The Fur Farms of Alaska: Two Centuries of History and a Forgotten Stampede
Additional resources for Animal andrology: theories and applications
For most studies, one stage, usually containing spherical spermatids, is chosen as representing spermatogenesis as a whole. The histological specimens that are examined contain some nuclei residing entirely within the section, and also fragments produced by sectioning. The proportion of fragments will increase as the section thickness is decreased, and it will be greater for nuclei of larger versus smaller diameter. Therefore, the resulting crude counts, which include both whole and partial nuclei, must be converted to true counts or whole-cell equivalents.
2 No. stimulus animals or combinations of stimulus animals presented. Sperm Production and its Harvest 29 References Abercrombie M (1946) Estimation of nuclear population from microtome sections Anatomical Record 94 238–248. Alkass JE, Bryant MJ and Walton JS (1982) Some effects of level of feeding and body condition upon sperm production and gonadotropin concentrations in the ram Animal Production 34 265–277. Almeida FFL, Leal MC and Franca LR (2006) Testis morphometry, duration of spermatogenesis, and spermatogenic efficiency in the wild boar (Sus scrofa scrofa) Biology of Reproduction 75 792–799.
Thus, it is customary to select tubules at a stage containing spherical spermatids for counting; irregularly shaped elongated spermatids are not counted. The shape of the Sertoli nuclei is also irregular, so it is also customary to count only those Sertoli nuclei containing a nucleolus. Abercrombie’s formula can be applied to the spherical nucleoli to obtain a true count for the Sertoli nuclei. True counts are then used to determine germ cell:Sertoli cell ratios. Alternatively, some investigators calculate the average number of Sertoli cells per tubular cross section in the control subjects or for all animals in Sperm Production and its Harvest the experiment.