Plasma concentrations of testosterone and estrogen in emus during breeding season

نویسندگان

چکیده

Emus (Dromaius novaehollandiae) are flightless birds that belong to the order ratite. They not only seasonal breeders but also monogamous. It is important understand reproductive cycle and hormones regulate their patterns of emus control breeding activity emu when reared under farmed conditions. Hence, an attempt was made study hormonal profile during pre-breeding, post seasons. Blood samples were collected from thirty apparently healthy (15 male 15 female) 5 6 years age different Plasma separated by centrifugation stored in aliquots at - 20 °C till further analysis. Hormones such as testosterone estradiol analysed using commercially available kits. The data subjected statistical analysis one way Anova. results indicated a significantly higher (p

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Episodic fluctuation in plasma testosterone and dihydrotestosterone in male ferrets during the breeding season.

In a number of species, including rats and mice (Bartke, Steele, Musto & Caldwell, 1973), bulls (Katangole, Naftolin & Short, 1971), and rams (Purvis, Illius & Haynes, 1974), there is evidence of episodic fluctuation of circulating levels of testosterone. It has generally been concluded that testosterone is released from the testis in a pulsatile fashion, temporally related to the episodic rele...

متن کامل

Changes in plasma testosterone levels and brain AVT cell number during the breeding season in the green treefrog.

We exposed groups of adult male green treefrogs, Hyla cinerea, to acoustic stimuli (natural chorus or random tones) for seven consecutive nights at three time points during their natural breeding season (May, July, and September) and assessed seasonal changes in plasma androgen levels and number of arginine vasotocin (AVT) immunoreactive cells in the brain over this time period. We also tested ...

متن کامل

Analysis of seminal plasma from brown bear (Ursus arctos) during the breeding season: Its relationship with testosterone levels

Seminal plasma (SP) plays an important role in the motility, viability and maintenance of the fertilizing capacity of mammalian spermatozoa. This study is the first on brown bear (Ursus arctos) SP components, and has two main objectives: 1) to define the SP composition in bear ejaculate and 2) to identify variations in SP composition in relation to high and low levels of testosterone in serum d...

متن کامل

Timing Ovulation in Ewes Treated with Ovsynch Different Times of PGF2 αInjection during the Breeding Season

This study was carried out at Sakha Animal Production Research Station, during the period from Oct., 2009 to Sept., 2010. Forty Rahmani ewes were divided into three treatment groups: the 1st, 2nd and 3rd treatment groups were intramuscularly injected (Day 0) with 1 mL GnRH analogue followed by an intramuscular injection with 0.7 mL PGF2α5 (G1), 6 (G2) or 7 (G3) days later. A second dose of 1 mL...

متن کامل

Study of Reproductive Performance of Crossbred Ewes Treated with GnRH and PMSG during Breeding Season

Reproductive performance was evaluated in non-lactating crossbred ewes to which were administered the exogenous GnRH and PMSG. The ewes were randomly allocated in three treatment groups (n=40).After accurate detection of estrus and 2 hours prior to mating, 2.5 mL of distilled water and 2.5 mL of GnRH were injected intramuscular to each ewe of the first (control) and second group, respectively. ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Pharma innovation

سال: 2023

ISSN: ['2277-7695', '2349-8242']

DOI: https://doi.org/10.22271/tpi.2023.v12.i3b.19496