Associations of clinical findings, bacteriological and histological results of endometrial biopsy with reproductive performance of postpartum dairy cows

Bonnett, Brenda N.; Martin, S W; Meek, A H

doi:10.1016/0167-5877(93)90114-9

Cited by 89 publications

(69 citation statements)

References 11 publications

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“…pyogenes, Bacteroides spp. and F. necrophorum have been shown to be important in the pathogenesis of endometritis (Olson et al 1984, Williams et al 1988, Hussain et al 1990Bonett et al 1993;Bekana et al, 1994). In this study the prevalence of A. pyogenes and GN anaerobes showed a mutual positive correlation, supporting the idea that these pathogens may act synergistically (Ruder et al 1981).…”

Section: Discussionsupporting

confidence: 83%

Uterine Bacteriology, Resumption of Cyclic Ovarian Activity and Fertility in Postpartum Cows kept in Large‐Scale Dairy Herds

Huszenicza

Fodor

Gacs³

et al. 1999

Reprod Domestic Animals

124

102

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ContentsThe interrelation of uterine culture with course of involution, resumption of cyclic ovarian activity and subsequent reproduction were studied. It was observed that in acute putrid (end0)metriti.s (APE) the A . pyogenes, E. coli and some Gram-negative (GN) anaerobes have more important role in the pathogenesis than other bacteria. The intrauterine A . pyogenes infection lasting for 4 to 5 weeks or longer (with or without simultaneous GN anaerobic infection) was the most detrimental on fertility, perhaps due to the increased rate of suspected embryonic death. If predictive information is required on the subsequent fertility, the isolation of A . pyogenes on the 5'h week after calving seems to be sufficient for monitoring the uterine condition. The APE was able to elongate the postpartum anovulatory period and increase the prevalence of anovulatory cysts.

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Section: Discussionsupporting

confidence: 83%

Uterine Bacteriology, Resumption of Cyclic Ovarian Activity and Fertility in Postpartum Cows kept in Large‐Scale Dairy Herds

Huszenicza

Fodor

Gacs³

et al. 1999

Reprod Domestic Animals

124

102

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“…Due to its easy access and to avoid invasive approaches such as endometrial biopsies, vaginal biopsies might provide hands-on information in order to forecast maternal receptivity without disturbing maternal-embryonic interactions (Bonnett et al 1993;LeBlanc et al 2002;Pugliesi et al 2014). Although a trend was observed for an upregulated abundance of PGR in the vagina of SF-SCL cows compared with the LF-LCL cows, there was no effect of our endocrine model on the expression of any of the other five genes evaluated in vaginal tissue.…”

Section: Discussioncontrasting

confidence: 64%

Spatio-specific regulation of endocrine-responsive gene transcription by periovulatory endocrine profiles in the bovine reproductive tract

Araujo

Sponchiado

Pugliesi

et al. 2016

Reprod. Fertil. Dev.

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In cattle, pro-oestrous oestradiol and dioestrous progesterone concentrations modulate endometrial gene expression and fertility. The aim was to compare the effects of different periovulatory endocrine profiles on the expression of progesterone receptor (PGR), oestrogen receptor 2 (ESR2), oxytocin receptor (OXTR), member C4 of aldo-keto reductase family 1 (AKR1C4), lipoprotein lipase (LPL), solute carrier family 2, member 1 (SLC2A1) and serpin peptidase inhibitor, clade A member 14 (SERPINA14): (1) between uterine horns ipsi- and contralateral to the corpus luteum (CL), (2) between regions of the ipsilateral horn and (3) in the vagina. Endometrium and vagina tissue samples were collected from cows that ovulated a larger (large follicle-large CL, LF-LCL; n=6) or smaller follicle (small follicle-small CL, SF-SCL; n=6) 7 days after oestrus. Cows in the LF-LCL group had a greater abundance of transcripts encoding ESR2, AKR1C4, LPL, SLC2A1 and SERPINA14, but a reduced expression of PGR and OXTR in the endometrium versus the SF-SCL group (PPGR and OXTR was greater in the contralateral compared with the ipsilateral horn (PPGR, ESR2, LPL, SLC2A1 and SERPINA14 (P<0.05). Different periovulatory endocrine profiles, i.e. LF-LCL or SF-SCL, did not influence gene expression in the vagina and had no interaction with inter- or intra-uterine horn gene expression. In conclusion, inter- and intra-uterine horn variations in gene expression indicate that the expression of specific genes in the bovine reproductive tract is location dependent. However, spatial distribution of transcripts was not influenced by distinct periovulatory sex-steroid environments.

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“…In these 3 treatment groups, a reduction in mean number of PMN and increased in mean lymphocytes were observed in this study. An increase segmented neutrophils (or PMN) in the endometrium was associated with poor reproductive performance whereas the presence of lymphocytes in the endometrium was associated with good fertility (Bonnett et al, 1993). These observations might explain the improved conception rate in treatment groups of this study.…”

Section: Figsupporting

confidence: 67%

Cytological Indices of Postpartum Normally Calved Dairy Cows

Alagar¹,

Selvaraju²,

Napolean³

2017

Int.J.Curr.Microbiol.App.Sci

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Associations of clinical findings, bacteriological and histological results of endometrial biopsy with reproductive performance of postpartum dairy cows

Cited by 89 publications

References 11 publications

Uterine Bacteriology, Resumption of Cyclic Ovarian Activity and Fertility in Postpartum Cows kept in Large‐Scale Dairy Herds

Uterine Bacteriology, Resumption of Cyclic Ovarian Activity and Fertility in Postpartum Cows kept in Large‐Scale Dairy Herds

Spatio-specific regulation of endocrine-responsive gene transcription by periovulatory endocrine profiles in the bovine reproductive tract

Cytological Indices of Postpartum Normally Calved Dairy Cows

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