Download Controlled Reproduction in Farm Animals Series, Volume 1: by I Gordon PDF

By I Gordon

Show description

Read or Download Controlled Reproduction in Farm Animals Series, Volume 1: PDF

Similar animals books

1,001 Things You Always Wanted To Know About Cats

Imagine you recognize every little thing approximately your pussycat better half?
In 1,001 stuff you continuously desired to learn about Cats, minutiae expert and authorized cat fancier J. Stephen Lang places your whisker knowledge to the try with 1,001 tantalizing minutiae tidbits. From myths and legends to well-known cat enthusiasts (and haters), "catty" words to sketch kitties, bewildering behavioral quirks to mating and motherhood, you’ll know about: <UL> * 5 U. S. presidents who loved cats . . . and one that hated them with a passion!
* why cats take pleasure in kneading their human partners with their paws;
* a breed of cat with webbed ft who swims for his seafood supper!
* the most well-liked female and male cat names today.
</UL>
With those and 997 different scrumptious minutiae morsels, you’ll notice an abundance of unforeseen delights on each web page!

Slaughterhouse: The Shocking Story of Greed, Neglect, and Inhumane Treatment Inside the U.S. Meat Industry

"Slaughterhouse" is the 1st publication of its variety to discover the effect that unparalleled adjustments within the meatpacking during the last twenty-five years - fairly consolidation, elevated line speeds, and deregulation - have had on staff, animals, and shoppers. it's also the 1st time ever that staff have spoken publicly approximately what's quite happening at the back of the closed doorways of America's slaughterhouses.

Happy Birthday, Rotten Ralph

Rotten Ralph is even rotten on his birthday, ultimately forcing terrible Sarah to take drastic measures.

Extra resources for Controlled Reproduction in Farm Animals Series, Volume 1:

Example text

In this dispersed state, the release of the contents of the cortical granules into the perivitelline space cannot follow the activation of the oocyte and polyspermy may occur. It is clear that the cow’s oocyte is designed to be fertilized very soon after ovulation and there is likely to be little latitude in terms of its lifespan if sperm are not already in the reproductive tract at the time of follicle rupture. The fertilizationprocess in the cow Th e fertilization process starts when a bovine spermatozoon first attaches loosely and then binds tenaciously to receptors on the oocyte’s zona pellucida (see Fig.

Stress and the dairy cow Increasing knowledge in neuroendocrinology should eventually result in the identification of the hormonal mechanisms by which different forms of stress affect reproduction. Dairy herds might then be monitored in such a way as to avoid the development of potentially stressful conditions which could adversely influence their breeding efficiency. Th e period from breeding to attachment of the embryo, 3 weeks later, is regarded as the phase most susceptible to the effect of stressors.

1 9 9 2 ~ )the ; pregnancy rate per insemination was 35% for evaporative cooling and 23% for spray and fan cooling. In Taiwan, Lu et al. 1, Effect on the bull's semen quality Although heat stress apparently decreases pregnancy rates in cows by way of its effect on oocytes and embryos, the influence of high temperature on the male gamete should not be overlooked. Although the use of AI has largely removed the contribution of the bull to lowered fertility due to heat stress, clearly there is a possibility that heat stress may affect the function of sperm after they have been deposited in the reproductive tract of a cow; maternal hyperthermia may have an adverse effect.

Download PDF sample

Rated 4.80 of 5 – based on 27 votes