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You searched for: Journal name Reproduction, fertility, and development Remove constraint Journal name: Reproduction, fertility, and development Publication year rev 7979-2021 Remove constraint Publication year rev: 7979-2021 Source 2021 v.33 no.2 Remove constraint Source: 2021 v.33 no.2
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1. 1 Effect of cytokine-supplemented maturation medium on bovine somatic cell nuclear transfer embryo development

Author:
J. Keim; Y. Liu; M. Regouski; R. Stott; G. N. Singina; I. A. Polejaeva
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 108
ISSN:
1031-3613
Subject:
blastocyst; bovine serum albumin; calcium; cattle; cycloheximide; embryo transfer; embryogenesis; estrus; fetal bovine serum; fibroblast growth factor 2; fibroblasts; humans; insulin-like growth factor I; leukemia inhibitory factor; magnesium; metaphase; oocytes; penicillins; pregnancy rate; somatic cells; sorbitol; streptomycin
Abstract:
... Invitro maturation is an important process in the invitro production of embryos. It has been shown recently that 3 cytokines: fibroblast growth factor 2 (FGF2), leukemia inhibitory factor (LIF), and insulin-like growth factor 1 (IGF1), increase the efficiency of IVM, blastocyst production, and invivo development following somatic cell nuclear transfer (SCNT) in pigs (Yuan et al. 2017 PNAS 114, E57 ...
DOI:
10.1071/RDv33n2Ab1

2. 10 Segmental cervical aplasia in a mare with mosaic X-chromosome aneuploidy

Author:
C. A. Pinzón-Osorio; D. Cortes-Beltran; L. M. Jiménez-Robayo; H. Lozano-Márquez; J. Zambrano-Varón; C. Jimenez-Escobar
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 112
ISSN:
1031-3613
Subject:
X chromosome; abnormal development; aneuploidy; artificial insemination; bacterial contamination; case studies; cervix; colposcopy; corpus luteum; diestrus; inflammation; karyotyping; mares; metaphase; neutrophils; ovulation; stallions; ultrasonography; uterus; Colombia
Abstract:
... Segmental cervical aplasia is a congenital Müllerian abnormality characterised by the complete or partial failure of cervical development resulting from abnormal fusion of the Müllerian ducts to the urogenital sinus. In the present case report, we describe a congenital segmental cervical aplasia in a Colombian creole mare. The mare was presented to the Animal Reproduction Clinic of Universidad Nac ...
DOI:
10.1071/RDv33n2Ab10

3. 100 The evolution and premature hyperactivation of kinetic sperm subpopulations are affected by inbreeding level in Retinta cattle

Author:
E. Teran; A. Molina; Z. P. Rodriguez; J. Dorado; S. D. Peyrás
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 157
ISSN:
1031-3613
Subject:
evolution; genomics; head; homozygosity; longevity; multivariate analysis; sperm motility; sperm quality
Abstract:
... Computer-assisted sperm analysis (CASA) has become a powerful tool to study sperm heterogeneity because it allows to cluster individual sperm in subpopulations (Sp) according to their kinetic parameters, which are associated with fertility and sperm quality. In cattle, inbreeding (mating between close relatives) affects sperm quality. Inbreeding estimation has become more accurate with the increas ...
DOI:
10.1071/RDv33n2Ab100

4. 103 Characterization of the receptors of the endocannabinoid system in equine sperm: Possible role of anandamide in sperm function

Author:
C. Arroyo-Salvo; R. Lottero; A. Gambini; S. Perez Martinez
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 159
ISSN:
1031-3613
Subject:
Western blotting; air; cAMP-dependent protein kinase; cannabinoids; cattle; cryopreservation; flagellum; fluorescence; fluorescent antibody technique; glucose; mice; polyvinyl alcohol; sperm capacitation; spermatozoa; stallions; transient receptor potential vanilloid channels; zona pellucida
Abstract:
... Conventional IVF in horses remains challenging. In particular, stallion sperm fails to penetrate the zona pellucida, possibly due to incomplete invitro sperm capacitation. Therefore, there is a need to elucidate, in horses, molecules with a proven role during capacitation in other mammals. Our laboratory has described the relevance of the endocannabinoid system in capacitation of bovine and murine ...
DOI:
10.1071/RDv33n2Ab103

5. 105 Increasing fertility of interspecific hybrid males using biotechnological approaches

Author:
A. Vetokh; A. Tadzhieva; B. Iolchiev; N. Volkova; V. Bagirov
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 159-160
ISSN:
1031-3613
Subject:
DNA fragmentation; Ovis; Romanov; acridine orange; acrosome; artificial vagina; cryopreservation; freeze-thaw cycles; hybrids; semen quality; sperm motility; sperm quality; statistical analysis
Abstract:
... The results of AI depend on many factors, with the quality of semen being one of the most important. Not all male hybrids can meet the requirements for semen quality, because they often have reduced fertility following cryopreservation. Thus, it is necessary to improve semen processing before use in AI. The aim of the study was to evaluate the effectiveness of using the “swim-up” flotation method ...
DOI:
10.1071/RDv33n2Ab105

6. 106 Exogenous melatonin administration improves behavioural signs, serum melatonin, testosterone, and semen quality in male dromedary (Camelus dromedarius) camels

Author:
S. Dholpuria; G. N. Purohit; S. Vyas
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 160
ISSN:
1031-3613
Subject:
Camelus dromedarius; blood serum; computer software; copulation; corn oil; gels; males; melatonin; palate; reproductive behavior; salivation; scent glands; semen quality; sperm concentration; sperm motility; testosterone; urination
Abstract:
... The present study aimed to evaluate the effects of exogenous administration of melatonin to male camels on reproductive behaviour, seminal parameters, and serum concentrations of melatonin and testosterone during the non-breeding and subsequent breeding seasons. In September 2018, male camels (n=12) were randomly allocated to subcutaneous injections of either melatonin (MLT, 0.643 mg/kg; n=6) diss ...
DOI:
10.1071/RDv33n2Ab106

7. 108 Synchronization and artificial insemination of South African communal cattle

Author:
T. L. Magopa; M. L. Mphaphathi; T. Mulaudzi; F. V. Ramukhithi; M. M. Tshabalala; Z. C. Raphalalani; M. D. Sebopela; N. Nkadimeng; S. M. Sithole; T. L. Nedambale
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 161
ISSN:
1031-3613
Subject:
Bonsmara; Brahman; artificial insemination; body condition; bulls; conception; cows; drugs; estradiol; estrus; heat; hybrids; pregnancy diagnosis; pregnant mare serum gonadotropin; progesterone; prostaglandins; regression analysis; semen; sperm motility; spermatozoa; ultrasonics; vagina; zebu
Abstract:
... The present study aimed to evaluate an oestrous synchronization protocol and oestrus response before AI in cows from an organised communal production system. A total of 74 cows Bos indicus (Brahman) and Bos taurus/indicus hybrid (Nguni) type from different communal farmers were screened based on: age (3 to 8 years), body condition score of ≥3 (1–5 scale), not pregnant (excluding heifers), 90 days ...
DOI:
10.1071/RDv33n2Ab108

8. 109 Pre-synchronization and reutilization of progesterone devices during a 6-day CO-Synch protocol for fixed-time artificial insemination in beef heifers

Author:
E. R. Canadas; B. J. Duran; G. Machado; A. Nall; S. E. Battista; M. L. Mussard; P. S. Baruselli; A. Garcia-Guerra
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 161-162
ISSN:
1031-3613
Subject:
acetates; artificial insemination; beef; cloprostenol; estrus; gonadotropin-releasing hormone; intravaginal devices; ovulation; pregnancy; progesterone; ultrasonography; yearlings
Abstract:
... Ovulatory response to the initial gonadotrophin-releasing hormone (GnRH) of the CO-Synch protocol is affected by circulating progesterone (P4) and follicle size. In addition, heifers that ovulate to the initial GnRH treatment have greater fertility after AI. Thus, this study determined the effect of (1) presynchronization (Presynch) before a 6-day CO-Synch protocol and (2) circulating [RCE1] (P4) ...
DOI:
10.1071/RDv33n2Ab109

9. 11 Effect of breed type on production of bovine embryos: Experience in Paraguay

Author:
C. Arreseigor; F. Arza-Spinzi; P. Sanchez; J. A. Berdugo; J. L. Konrad; P. Maldondo-Vargas
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 113
ISSN:
1031-3613
Subject:
Angus; Brangus; Girolando; Holstein; Nellore; cows; meat; milk; oocytes; pregnancy rate; semen; standard deviation; viability; zebu; Paraguay
Abstract:
... One of the parameters that has the most influence on invitro embryo production programs is the number of oocytes obtained in each follicular aspiration session (ovum pickup; OPU). A significant impact of the breed of the donor on this parameter has been reported. The objective of this work was to compare the parameters of an invitro embryo production program of cows of different breeds in Paraguay ...
DOI:
10.1071/RDv33n2Ab11

10. 111 Use of gonadotrophin-releasing hormone (GnRH) or equine and human chorionic gonadotrophins for oestrus synchronization and their influence on embryo viability and progesterone levels on day 16 and 30 of goats receiving GnRH 5 days after intrauterine insemination or natural service

Author:
F. Encinas; M. Rojas; L. Dawson; E. Loetz
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 163
ISSN:
1031-3613
Subject:
blood serum; estrus; gonadotropin-releasing hormone; horses; humans; insemination; ovulation; placebos; pregnancy diagnosis; pregnancy rate; progesterone; prostaglandins; regression analysis; ultrasonics; viability
Abstract:
... Gonadotrophin-releasing hormone (GnRH) or equine and human chorionic gonadotrophins (eCG and hCG) were evaluated for oestrus/ovulation synchronization (E/OS), as well as the influence of GnRH 5 days post-breeding (dpb) on embryo viability (EV), and progesterone (P4) levels on Day 16 and 30 after laparoscopic AI (LAI) or natural service (NS). Fifty-four lactating/non-lactating Alpine breed goats (a ...
DOI:
10.1071/RDv33n2Ab111

11. 112 Follicular dynamics and oestrus response of Alpine goats with oestrus/ovulation synchronized during the early transitional reproductive phase using gonadotrophin given early or late

Author:
E. Loetz; M. Rojas
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 163-164
ISSN:
1031-3613
Subject:
bioactive properties; body condition; body weight; breeding season; estrus; goats; horses; human chorionic gonadotropin; morphometry; ovulation; regression analysis; ultrasonics
Abstract:
... Oestrus and ovulation synchronization (E/OS) regimens for fixed-timed breeding are useful when consistently eliciting ovulation. Early synchronization in the reproductive season promotes unreliable oestrus behavioural and physiologic response due to insufficient ovarian priming. In ruminants, equine (eCG) or human chorionic gonadotrophin (hCG) has FSH bioactivity or elicits ovulation, correspondin ...
DOI:
10.1071/RDv33n2Ab112

12. 113 Different doses of equine chorionic gonadotrophin on pregnancy and twin rates of Bos taurus beef heifers subjected to J-Synch protocol for fixed-time artificial insemination

Author:
C. G. Pintos; R. Núñez-Olivera; F. Cuadro; C. Brochado; G. A. Bó; A. Menchaca
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 164
ISSN:
1031-3613
Subject:
acetates; artificial insemination; beef; body condition; cloprostenol; corpus luteum; equine chorionic gonadotropin; estradiol; insemination; intravaginal devices; pregnancy diagnosis; pregnancy rate; progesterone; regression analysis; ultrasonography
Abstract:
... The objective was to evaluate the effect of different doses of equine chorionic gonadotrophin (eCG) on pregnancy (P/AI) and twin rates of beef heifers in a progesterone and oestradiol-based treatment (J-Synch protocol) for fixed-time AI (FTAI). A total of 1,404 Bos taurus beef heifers with a body condition score 4.8±0.5 (mean±s.e.m., scale 1–8) were used in three different locations. The presence ...
DOI:
10.1071/RDv33n2Ab113

13. 115 Presynchronization and reutilization of progesterone devices during a 6-day CO-Synch protocol for fixed-time artificial insemination in beef heifers

Author:
E. R. Canadas; B. Duran; G. Machado; A. Nall; S. E. Battista; M. Mussard; P. S. Baruselli; A. Garcia-Guerra
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 165-166
ISSN:
1031-3613
Subject:
acetates; artificial insemination; beef; cloprostenol; estrus; gonadotropin-releasing hormone; intravaginal devices; ovulation; pregnancy; progesterone; ultrasonography; yearlings
Abstract:
... Ovulatory response to the initial gonadotrophin-releasing hormone (GnRH) of the CO-Synch protocol is affected by circulating progesterone (P4) and follicle size. In addition, heifers that ovulate to initial GnRH treatment have greater fertility after AI. Thus, the aim of this study was to assess the effect of (1) presynchronization (Presynch) before a 6-day CO-Synch protocol and (2) P4 device reus ...
DOI:
10.1071/RDv33n2Ab115

14. 116 Differences between 5- and 6-day progestogen-based oestrus induction protocol in Saanen and Toggenburg goats

Author:
J. B. S. Pinheiro; J. M. G. Souza-Fabjan; L. F. L. Correia; M. E. F. Oliveira; J. F. Fonseca
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 166
ISSN:
1031-3613
Subject:
Saanen; Toggenburg; acetates; anestrus; body condition; cloprostenol; equine chorionic gonadotropin; estrus; intravaginal devices; lactation; medroxyprogesterone; normal distribution; ovulation; parturition; ultrasonics; Brazil
Abstract:
... Hormonal oestrus induction treatment is an important tool for the success of reproductive biotechniques in anoestrus goats. In the nonbreeding season, oestrus induction can be performed by the use of several protocols, including those varying in their duration. This study aimed to compare short-term (for either 5 or 6 days) progestogen-based oestrus synchronization protocols in dairy [Toggenburg ( ...
DOI:
10.1071/RDv33n2Ab116

15. 117 Effect of length of insertion of a progesterone device on follicular diameter, time of ovulation, and pregnancy rates in Bos indicus cows treated with an oestradiol/progesterone-based protocol with a prolonged proestrus

Author:
A. V. Cedeño; G. A. Bó
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 166-167
ISSN:
1031-3613
Subject:
beef; body condition; cloprostenol; corpus luteum; equine chorionic gonadotropin; estradiol; estrus; intravaginal devices; ovulation; proestrus; progesterone; zebu; Brazil
Abstract:
... Three experiments were designed to evaluate the effect of the length of insertion of a intravaginal progesterone (P4) device on follicular and corpus luteum (CL) diameter, time of ovulation, and pregnancy rates following fixed-time AI (P/FTAI) in Bos indicus cows treated with an oestradiol/P4-based treatment with a lengthened proestrus, named J-Synch. Multiparous suckled Bos indicus beef cows that ...
DOI:
10.1071/RDv33n2Ab117

16. 119 Anti-Müllerian hormone as an endocrine marker of fertility in Bos taurus heifers

Author:
I. F. Torres-Quijada; S. Romo-Garcia; R. Zamorano-Algandar; J. F. Torres-Simental
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 167-168
ISSN:
1031-3613
Subject:
Simmental; anti-Mullerian hormone; blood sampling; blood serum; body condition; conception; estrus; linear models; prostaglandins; ultrasonography
Abstract:
... The objective of the study was to determine the relationship between the serum concentration of anti-Mullerian hormone (AMH) and fertility indicators in Bos taurus heifers subjected to breeding. From a group of 40 Simmental heifers (15–18 months of age, body condition score of 5 to 7; weight 350–400kg) that received a single dose of 25mg of dinoprost, 23 females entered oestrus and were artificial ...
DOI:
10.1071/RDv33n2Ab119

17. 121 Anti-Müllerian hormone cutoff values for the selection of oocyte donors in the Gir (Bos indicus) breed

Author:
L. F. Feres; L. G. B. Siqueira; L F. M. Pfeifer; L. L. Santos; J. H. M. Viana
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 168-169
ISSN:
1031-3613
Subject:
anti-Mullerian hormone; blastocyst; blood sampling; estrous cycle; oocytes; ovarian follicles; zebu; Brazil
Abstract:
... Anti-Müllerian hormone (AMH) has a well-known association with antral follicle count (AFC) and the number of oocytes recovered by OPU in cattle. However, to be used as a criterion to select candidate donors for ART, AMH reference values must be established for each breed. The aim of this study was to estimate AMH cutoff values for selecting oocyte donors in Gir (Bos indicus) cattle. A blood sample ...
DOI:
10.1071/RDv33n2Ab121

18. 122 Colour-Doppler ultrasonography as a tool for oocyte donor selection

Author:
F. Villaseñor-González; H. Álvarez-Gallardo; M. Kjelland; A. Velázquez-Roque; S. Romo
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 169
ISSN:
1031-3613
Subject:
Angus; blastocyst; blood flow; body condition; bulls; cloprostenol; computer software; corpus luteum; embryo transfer; estradiol; intravaginal devices; irrigation; oocytes; pregnancy; progesterone; reactive oxygen species; semen; statistical analysis; ultrasonography; uterus; Mexico
Abstract:
... Colour-Doppler ultrasonography (CDU) has been applied for a more detailed examination of the ovary and uterus, mainly local blood flow in ovarian follicles and the corpus luteum (CL). The main use of CDU is for the diagnosis of early pregnancy or the selection of recipients for embryo transfer in cattle; however, this tool can also be used to select oocyte donors according to blood flow to the ova ...
DOI:
10.1071/RDv33n2Ab122

19. 124 Effect of transvaginal oocyte aspiration on equine blood and peritoneal fluid parameters

Author:
D. Orellana-Guerrero; E. Santos-Villanueva; S. Koshak; A. De La Fuente; G. Dujovne
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 170
ISSN:
1031-3613
Subject:
albumins; anorexia; blood chemistry; blood sampling; colic; fever; industry; lactic acid; mares; neutrophils; oocytes; peritonitis; progeny; protein content; reproduction; t-test; ultrasonics; vagina
Abstract:
... Transvaginal aspiration of oocytes (TVA) in the equine industry has gained more relevance and become a valuable technique to produce offspring from subfertile mares. TVA is a semi-invasive procedure and requires handling the ovaries transrectally to position them closely to an ultrasound probe located in the mare’s vagina. Once the ovary lies in close apposition to the ultrasound probe, a 12G need ...
DOI:
10.1071/RDv33n2Ab124

20. 127 Metabolomics analysis of human cumulus cells from oocytes exhibiting different developmental competence

Author:
Á. Martínez-Moro; I. Lamas-Toranzo; P. Bermejo-Álvarez
Source:
Reproduction, fertility, and development 2021 v.33 no.2 pp. 172
ISSN:
1031-3613
Subject:
blastocyst; centrifugation; cysteine; dissociation; embryo transfer; follicular development; humans; intracytoplasmic sperm injection; liquid nitrogen; metabolites; metabolomics; oocytes; pregnancy; t-test; xenobiotics
Abstract:
... Cumulus cells play fundamental metabolic roles during folliculogenesis, being closely connected to the oocyte through transzonal projections. These oocyte-supporting cells are removed and discarded before intracytoplasmic sperm injection (ICSI), thereby constituting an interesting biological material on which to perform molecular analyses aimed to predict oocyte developmental potential. The object ...
DOI:
10.1071/RDv33n2Ab127