The use of ultrasonography for the study of the bovine reproductive tract. II. Non-pregnant, pregnant and pathological conditions of the uterus

Fissore, Rafael A.; Edmondson, A. J.; Pashen, R. L.; Bondurant, Robert

doi:10.1016/0378-4320(86)90037-0

Cited by 48 publications

(34 citation statements)

References 10 publications

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“…The usefulness of ultrasonography in diagnosing pathological conditions of the uterus has been reported [1,121]. Uterine abnormalities recognised during ultrasonography included endometritis, pyometra, fetal maceration and fetal mummification.…”

Section: Uterine Abnormalitiesmentioning

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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Section: Uterine Abnormalitiesmentioning

confidence: 99%

Bovine Reproductive Ultrasonography: A Review

Ribadu

Nakao

1999

Journal of Reproduction and Development

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“…Αντίστοιχες επιμήκεις τομές λαμβάνονται και στα μικρά μηρυκαστικά με την τοποθέτηση της κεφαλής ραχιαία της μήτρας, καθώς σε κάθε τομή σάρωσης τα υπερηχητικά κύματα κατευθύνονται κοιλιακά, παράλ ληλα με τον επιμήκη άξονα του ζώου {Kahn 1994), Αξίζει να σημειωθεί ότι στα μηρυκαστικά η υπερη-χτομογραφική εικόνα της μήτρας ποικίλλει ανάλογα με το στάδιο του ωοθηκικού κύκλου, αφού επηρεάζεται από τις μεταβολές στη συγκέντρωση των οιστρο γόνων και της προγεστερόνης (Fissore et al 1986, DcsCôtcaux et al 2009, DcsCôtcaux et al 2010.…”

Section: υπερηχοτομογραφικήunclassified

Applications of ultrasonography in ruminants (II): Female reproductive system - A review

Lazaridis

Brozos

Kissis

2017

J Hellenic Vet Med Soc

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Ultrasonography is a non-invasive imaging method used for assessing pathological and physiological situations, successfully applied in the imaging of the reproductive tract of ruminants. The contribution of this diagnostic method has been essential in understanding the function of the reproductive system and especially that of the ovarian cycle. For the examination of the reproductive system of female ruminants the most frequently applied equipment is that of type B-mode real time, with linear probe and frequencies of 3.0? 5.0 and 7.5 MHz. In cattle, the examination is conducted primarily through the rectal, while in small ruminants it can also be performed transabdominal.In non-pregnant animals the ultrasound scanning aims at the examination of the cervix, the uterus and the ovaries allowing the determination of the stage of the estrus cycle, or the diagnosis of certain abnormalities of the reproductive system (ovarian cyst, anoestrus, etc). During gestation, ultrasonography finds numerous applications in ruminants, such as early pregnancy diagnosis* determination of the number and the sex of the fetuses, assessment of the stage of gestation, control of fetal vitality, etc. Ultrasonography has also been used for the selection of animals for reproduction contributing in the improvement of reproductive performance. Biotechnology is another area where ultrasound scanning is extensively used (ovum pick-up, embryo transfer, etc). Today the use of ultrasonography is widely spread in ruminants aiming at real time and dynamic assessment of the reproductive system. The cost of equipment has been reduced over the past years, enabling the veterinarians to benefit of its potentials.

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“…Several studies have assessed the accumulation of uterine fluid by ultrasound during the oestrous cycle (Fissore et al, 1986, Kastelic et al, 1991 early pregnancy (Scully et al, 2015) and postpartum (Mateus et al, 2002, Kasimanickam et al, 2004, Barlund et al, 2008. During the oestrous cycle, there is limited uterine fluid in the luteal phase, but the fluid increases many-fold during the periovulatory period and when the cow enters oestrus.…”

Section: Non-invasive Uterine Assessment Of Endometrial Receptivitymentioning

confidence: 99%

“…Transrectal ultrasound has been widely used in farm animals as a non-invasive tool to visualise the reproductive tract to evaluate various physiological and pathological conditions (Pierson and Ginther, 1988). Several studies have assessed the accumulation of uterine fluid by ultrasound during the oestrous cycle (Fissore et al, 1986, Kastelic et al, 1991 and postpartum (Mateus et al, 2002, Kasimanickam et al, 2004. For example, during the oestrous cycle, there is limited uterine fluid in dioestrus but this increases several folds during the periovulatory period and when the cow enters oestrus (Barlund et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

63 Effect of Endometrial Biopsy on Uterine Health of Tropically Adapted Beef Cattle

Ramirez-Garzon

Satake

Lyons

et al. 2017

Reprod. Fertil. Dev.

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In cattle, early embryonic loss during the first two to three weeks after fertilisation is recognised as the major cause of reproductive failure, with consequent significant impacts on business performance of beef and dairy farms. Inadequate endometrial receptivity is considered an important cause of early embryonic mortality in cattle. A pilot experiment was conducted to compare the outcome of performing different endometrial sampling procedures in tropically adapted (Bos indicus x Bos taurus) heifers, and to select the most suitable method to collect samples for investigation of endometrial gene expression. Endometrial biopsy (EB) using a biopsy device with a diameter similar to an artificial insemination gun (10366L Karl Storz®, Germany) was found to be the most reliable method of collecting endometrial samples in these heifers, with the samples recovered yielding a mean concentration of RNA of 72.9 ±39.3 ng/µl and mean RNA integrity number (RIN) of 7.3 ±1.1.To assess the likely safety of conducting EB in cattle a systematic review of published information assessing the impact of EB on subsequent pregnancy rates was conducted. Using the Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) protocol, online searches identified 1164 possible studies. After applying the exclusion criteria, six studies allowed the comparison of pregnancy rates between sampled (n= 1,208) and non-sampled cows (n=2,393). The results showed that EB can be performed before breeding without adversely affecting the likelihood of cows becoming pregnant.A major objective of the research was to determine whether EB and evaluation of endometrial gene expression could be used to identify tropically adapted embryo transfer (ET) recipients more likely to become pregnant. Three potential EB scenarios were investigated, 1) EB on Day 7 of the oestrous cycle prior to the cycle when ET would be performed, 2) EB on Day 4 of the oestrous cycle in which ET would be performed i.e. EB 3 days before ET, and 3) EB on the same day when ET would be performed.The first study assessed the morphological and inflammatory changes induced by endometrial biopsy. Pre-synchronised heifers underwent EB from the horn ipsilateral to the corpus luteum (CL) either at Day 7 of the previous cycle (Group 1 n=10) followed by administration of a luteolytic dose of prostaglandin F2α or at Day 4 (Group 2, n=7) of the present cycle. All heifers were slaughtered on Day 7 of the present cycle. The site of EB was visually evident in 40% (4/10) of Group 1 and 42% (3/7) of Group 2 heifers. Histological assessment revealed no evidence of changes indicative of endometritis in either the biopsied or non-biopsied horns in both groups. The histological iii changes observed included mild mononuclear infiltration of the epithelium and mild vascular changes associated with haemorrhage and congestion.Initial investigation of the endometrial expression of the pro-inflammatory cytokine IL1β and wound healing cytokine TGFβ genes found no significant difference betwe...

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The use of ultrasonography for the study of the bovine reproductive tract. II. Non-pregnant, pregnant and pathological conditions of the uterus

Cited by 48 publications

References 10 publications

Bovine Reproductive Ultrasonography: A Review

Bovine Reproductive Ultrasonography: A Review

Applications of ultrasonography in ruminants (II): Female reproductive system - A review

63 Effect of Endometrial Biopsy on Uterine Health of Tropically Adapted Beef Cattle

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