B-mode ultrasonography of the bull testicle

Pechman, R. D.; Eilts, B.E.

doi:10.1016/0093-691x(87)90231-7

Cited by 61 publications

(42 citation statements)

References 15 publications

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“…As reported in previous studies [14,16,17], the bilateral marked reduction in both testicular size and weight together with production of azoospermic semen from the age of puberty recorded in the present study suggest that the present condition might be bilateral complete testicular hypoplasia. Such suggestion may be supported by the findings of Moura and Erickson [1] who found that the difference in the testicular weight and seminiferous tubules diameter between normal and bull affected with testicular hypoplasia was mainly due to absence of the germ cells.…”

Section: Discussionsupporting

confidence: 69%

“…These findings are similar to those reported by Bongso et al, [2]. In contrast to the moderate homogenous echogenic feature with central hyperechoic line characteristic of the normal testes [17] in the control bull, the testes of the affected bull showed a relative hypoechoic feature. However, the hypoechoic feature may be explained in the light of marked reduction in the number of the semniferous tubules and presence of one layer of spermatogonia within the tubules.…”

Section: Discussionsupporting

confidence: 63%

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Descriptive and cytogenetic study on testicular hypoplasia in a buffalo bull

Sa¹,

Aa²,

Am³

et al. 2017

Anim Husb Dairy Vet Sci

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Phenotypic, andrologic, and cytogenetic investigations were performed on a 2.5 years old buffalo-bull that produced azoospermic semen from puberty. Also, ultrasonographic and histopathologic examinations were conducted on its testis. Phenotypic examinations showed atypical male features. Andrological investigations revealed small non-pendulous scrotum and reduced testicular size as indicated by lowered scrotal circumference measurement and ultrasound-detected testicular breadth. Both libido and serum testosterone concentration were greatly reduced. The sonographic examination of the test is revealed hypoechoic feature and reduced testicular breadth. Testicular hypoplasia was confirmed by the histopathological findings represented by a marked reduction in the number and diameter of seminiferous tubules and absence of mitotic or meiotic activities. Cytogenetic examination of peripheral leucocytes revealed the presence of trisomy-24.It could be concluded that identifying trisomy -24 as possible cause of testicular hypoplasia in buffalo bulls is being useful for earlier diagnosis of the affected cases before reaching the age of puberty when the condition could be diagnosed and thus reducing the costs of keeping them till puberty.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionsupporting

confidence: 63%

Descriptive and cytogenetic study on testicular hypoplasia in a buffalo bull

Sa¹,

Aa²,

Am³

et al. 2017

Anim Husb Dairy Vet Sci

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“…Transcutaneous ultrasonic imaging has been used to characterize the ultrasonic morphology of the testicles of the bull [13,14]. The normal bull testicle was reported as being homogeneous and moderately echogenic.…”

Section: Ultrasonography Of the Male Reproductive Systemmentioning

confidence: 99%

“…Currently, there is scanty of information on the use of ultrasonography in bovine male reproduction. Ultrasonographic characteristics of bull testes and accessory sex glands have been reported [13][14][15]. The potential for the use of ultrasonography in bovine male reproduction is enormous.…”

mentioning

confidence: 99%

Bovine Reproductive Ultrasonography: A Review

Ribadu

Nakao

1999

Journal of Reproduction and Development

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Abstract. The advent of ultrasonography over a decade ago has contributed tremendously in the field of bovine reproduction. Ultrasound imaging has shown that cattle exhibit 2 or 3 waves of follicular development during an estrous cycle. Ultrasonography allows monitoring of individual follicles as they grow and/or regress over time and patterns of follicular development can thus be determined with relative precision. Other important applications of ultrasonography in bovine reproduction includes; pregnancy diagnosis, fetal sex determination, folliculocenteses, diagnosis of abnormalities of the reproductive organs, monitoring of treatment of ovarian cysts, monitoring of postpartum genital resumption, ultrasound-guided centesis and male genital ultrasonography. Recent applications of ultrasonography in bovine reproduction includes doppler ultrasonography for genital blood flow and mammary ultrasonography. The use of ultrasonography is indispensable in most studies in which morphology (structure) and function are correlated. In this paper, the literature pertaining to the use of ultrasonography in bovine reproduction is reviewed. The applications and limitations of ultrasonography are highlighted. The non-invasive nature of ultrasonography makes it an excellent clinical and research tool in bovine reproduction.

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“…The presence of free spermatozoa may also increase echodensity. Indeed, the homogeneous and highly echodense pattern was characteristic of mature testes in many mammals, including bottlenose dolphins [23,29]. Nevertheless, in two YFP individuals with body length >160 cm, the testicular parenchyma had a coarse and moderate echo pattern (Fig.…”

Section: Discussionmentioning

confidence: 93%

B-Mode ultrasonographic evaluation of the testis in relation to serum testosterone concentration in male Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) during the breeding season

Wu¹,

Hao²,

Li³

et al. 2010

Theriogenology

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B-mode ultrasonography of the bull testicle

Cited by 61 publications

References 15 publications

Descriptive and cytogenetic study on testicular hypoplasia in a buffalo bull

Descriptive and cytogenetic study on testicular hypoplasia in a buffalo bull

Bovine Reproductive Ultrasonography: A Review

B-Mode ultrasonographic evaluation of the testis in relation to serum testosterone concentration in male Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) during the breeding season

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