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Reproductive soundness of captive southern and northern white rhinoceroses (Ceratotherium simum simum, C.s. cottoni): evaluation of male genital tract morphology and semen quality before and after…
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Maternal Undernutrition in Cows Impairs Ovarian and Cardiovascular Systems in Their Offspring1
TLDR
This study links transient maternal undernutrition and enhanced maternal androgen production with a diminished ovarian reserve as well as potential suboptimal fertility, enlarged aortic trunk size, and enhanced blood pressure independent of alterations in birth weight, postnatal growth, or stress response and glucose tolerance.
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The effect of long non-reproductive periods on the genital health in captive female white rhinoceroses (Ceratotherium simum simum, C.s. cottoni).
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Ultrasonography of the Urogenital Tract in Elephants (Loxodonta africana and Elephas maximus): An Important Tool for Assessing Male Reproductive Function
TLDR
Although many of these bulls could serve as semen donors for natural mating or artificial insemination, the inconsistent production of good-quality ejaculates raises questions as to the reliability of these individuals to participate in breeding programs.
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Skewed birth sex ratio and premature mortality in elephants.
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Seasonal timing of sperm production in roe deer: interrelationship among changes in ejaculate parameters, morphology and function of testis and accessory glands.
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Aspects of the reproductive biology and breeding management of Asian and African elephants Elephas maximus and Loxodonta africana
TLDR
Current knowledge of elephant reproduction is reviewed and how it is being used to aid species conservation for maximal reproductive efficiency and enhancement of genetic management is reviewed.
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Gestating for 22 months: luteal development and pregnancy maintenance in elephants
TLDR
It is concluded that pregnant elephants maintain active CL throughout gestation that appear as main source of progestagens and are maintained until after parturition, different from currently described mammalian models.
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Successful cryopreservation of Asian elephant (Elephas maximus) spermatozoa.
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The concept of superfetation: a critical review on a ‘myth’ in mammalian reproduction
TLDR
A clear definition of the term as well as distinct criteria to identify the occurrence of superfetation in a species is missing and the evolution of such a reproductive mechanism poses many interesting evolutionary, endocrine, microbial and immunological questions that require further investigation.
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