Ultrazvuk B-moda i doppler ultrazvuk akcesornih spolnih žlijezda i testisa jaraca tijekom sezone parenja

Autor: Elbaz, Hamed Talaat, Sharshar, Ahmed Mohamed, Elweza, Ahmed Essam
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Veterinarska stanica
Volume 53
Issue 2
ISSN: 1849-1170
0350-7149
Popis: The aims of the present study were to scan the echogenicity of reproductive organs of bucks during the breeding season. The influence of testosterone on haemodynamic Doppler indices of accessory genital glands of breeding bucks was also examined. Ten clinically healthy, sexually mature, Egyptian Baladi male goats were examined and the testes, tail of epididymis and accessory sex glands imaged using greyscale B-mode, colour Doppler ultrasonography. The spectral Doppler indices (pulsatility index and resistive index) were measured. Blood samples were collected and serum concentrations of testosterone, FSH and LH were determined. The results revealed that the echogenicity of testes, tail of epididymis and accessory genital glands was changed by breeding season. Pulsatility index values of supra-testicular artery, marginal artery, tail of the epididymis, ampulla, vesicular gland, pars disseminata of the prostate and bulbourethral gland were 0.85±0.04, 0.54±0.03, 0.4±0.03, 0.37±0.04, 0.51±0.03, 0.39±0.02 and 0.41±0.04, respectively. The resistive index of the above criteria were 0.51±0.04, 0.37±0.02, 0.3±0.03, 0.27±0.02, 0.31±0.03, 0.32±0.03 and 0.32±0.03, respectively. Serum testosterone concentration was 4.78±0.46 ng/mL. Furthermore, FSH and LH were 3.71±0.43 and 1.8±0.17 mIU/mL, respectively. Interestingly, testosterone clearly deceased the values of the both the pulsatility and resistive indices of the accessory genital glands of breeding bucks. Season modified the echogenicity of testes, epididymis and accessory genital glands. Testosterone regulated the reproductive indices of blood flow of the accessory genital glands of breeding bucks. Thus, this study could serve as a baseline of reference values of Egyptian Baladi male goats during the breeding season to improve reproductive efficiency.
Cilj je ove studije bio skenirati ehogenost spolnih organa jaraca tijekom sezone parenja, a ispitan je i učinak testosterona na hemodinamičke doppler indekse aksecornih spolnih žlijezda rasplodnih mužjaka. U deset klinički zdravih, spolno zrelih egipatskih baladi jaraca ispitani su testisi, rep epididimisa i akcesorne spolne žlijezde putem ultrazvuka B-moda sive skale i color doppler ultrazvuka. Izmjereni su spektralni doppler indeksi poput indeksa pulsatilnosti (PI) i indeksa otpornosti (RI). Prikupljeni su uzorci krvi te su određene koncentracije testosterona, folikulostimulirajućeg hormona (FSH) i luteinizirajućeg hormona (LH) u krvi. Rezultati su otkrili da se ehogenost testisa, repa epididimisa i akcesornih spolnih žlijezda tijekom sezone parenja promijenila. PI vrijednosti supratestikularne arterije (STA), marginalne arterije (MA), repa epididimisa, proširenja (ampulla), vezikularne žlijezde, pars disseminata prostate i bulbouretralne žlijezde bile su 0,85±0,04, 0,54±0,03, 0,4±0,03, 0,37±0,04, 0,51±0,03, 0,39±0,02 i 0,41±0,04. Nadalje, RI iznad navedenih kriterija bio je 0,51±0,04, 0,37±0,02, 0,3±0,03, 0,27±0,02, 0,31±0,03, 0,32±0,03, odnosno 0,32±0,03. Koncentracija testosterona u krvi bila je (4,78±0,46) ng/mL. Nadalje, FSH i LH bile su (3,71±0,43, odnosno 1,8±0,17) mIU/mL. Uočeno je da je testosteron vidno smanjio PI i RI vrijednosti akcesornih spolnih žlijezda rasplodnih mužjaka, što znači da je sezona parenja promijenila ehogenost testisa, epididimisa i akcesornih spolnih žlijezda. Testosteron je regulirao reproduktivne indekse (PI i RI) protoka krvi akcesornih spolnih žlijezda rasplodnih mužjaka. Rezulteti ove studije mogu se uzeti kao referentne vrijednosti egipatskih baladi jaraca tijekom sezone parenja da bi se poboljšala njihova reproduktivna učinkovitost.
Databáze: OpenAIRE
Externí odkaz: