1
|
Aissanou S, Ayad A. Histomorphometric changes of testicular tissues by season and age of Algerian local donkeys (Equus asinus). ACTA SCIENTIARUM: ANIMAL SCIENCES 2022. [DOI: 10.4025/actascianimsci.v44i1.55775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present investigation was undertaken to highlight the histomorphometric changes of testicular tissues according to season and age in donkeys (Equus asinus) under northern Algeria conditions. The experiment was conducted from February 2019 to January 2020. A total of 21 sexually mature donkeys were selected randomly. The testis were immediately collected after slaughter for the histological observation. The analysis of the correlation coefficients shows negative correlations between DL and other parameters such as DST, GCEH, TTA and ITSA, ranged between -0.24 and -0.79. Also, there were a high negative correlations between season and the histomorphometric parameters, except DL was revealed positive (r=0.65). On the other hand, there were positive correlations between age and testicular histomorphometrics parameters. The results indicated that DST, GCEH, TTA and ITSA values were significantly higher in winter and autumn seasons than in spring and summer seasons. It is also noteworthy that DST, GCEH, TTA and ITSA values were significantly higher in adult and aged donkeys than in young donkeys. Our comparative analysis of histological parameters, suggests that the sexual activity usually occurs during winter and autumn in local donkeys of Algeria. In addition, our results of histomorphometric of testicular tissues are correlated with age of donkeys.
Collapse
|
2
|
Magalhaes HB, Canuto LEF, Zhao F, Li M, Li X, Ji C, Canisso IF. Daily Sperm Output, Spermatogenic Efficiency, and Sexual Behavior of Dezhou Donkey Jacks Mounting Jennies in Estrus. J Equine Vet Sci 2021; 101:103420. [PMID: 33993947 DOI: 10.1016/j.jevs.2021.103420] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 10/22/2022]
Abstract
This study aimed to assess the sexual behavior of jacks mounting jennies in estrus and determine the daily sperm output (DSO) and spermatogenic efficiency using two equations to calculate testicular volume (TV). Eight sexually rested mature jacks, aging 5 to 10 years old, had semen collected once a day for 10 consecutive days using jennies in good standing estrus for mounting. Sexual behavior and semen parameters were assessed during each collection. Testicular measurements of height, width, and length were taken immediately before the first semen collection, and these measurements were used to calculate TV. After that, the TV was used to predict the DSO. The average total sperm number (TSN) obtained on days 8 to 10 was deemed the actual DSO. Differences in the predicted vs. the actual DSO were used to calculate the spermatogenic efficiency. In addition, the actual DSO was also used to calculate the number of inseminating doses a jack could produce for both on- and off-site breeding. Jack's sexual behavior and sperm motility did not vary across collection days. Sperm concentration and TSN reduced over time (P < .05). The actual DSO was 9.1 ± 4.1 billion, and the predicted DSO varied from 4.7 to 18 billion. Spermatogenic efficiency varied from 50 to 150% based on jack and the equation used to calculate TV. The number of inseminating doses ranged from 15 to 47 at 300-500 million progressively motile sperm (pms)/dose for on-site breeding. In contrast, the number of breeding doses with cooled-shipped semen (1 billion pms/dose) varied from 4 to 14 doses across donkeys. In conclusion, sexual behavior was not affected by daily semen collections. Sexual rest did not affect sperm motility. The predicted DSO varied with the equation used to determine TV. Clinically normal donkeys have high spermatogenic efficiency, which confirms previous histology reports.
Collapse
Affiliation(s)
- Humberto B Magalhaes
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana, Champaign, IL
| | - Lucas E F Canuto
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana, Champaign, IL; Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), São Paulo, Brazil
| | - Fuwei Zhao
- National Engineering Research Center for Gelatin-based TCM, Shandong Province, China
| | - Min Li
- National Engineering Research Center for Gelatin-based TCM, Shandong Province, China
| | - Xuexian Li
- National Engineering Research Center for Gelatin-based TCM, Shandong Province, China
| | - Chuanliang Ji
- National Engineering Research Center for Gelatin-based TCM, Shandong Province, China
| | - Igor F Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana, Champaign, IL.
| |
Collapse
|
3
|
Panzani D, Quaresma M, Fanelli D, Camillo F, Moroni R, Rota A, Martins-Bessa A, Nóvoa M, Catalán J, Canisso IF, Conte G, Mirò J. Hastening Time to Ejaculation in Donkey Jacks Treated with the PGF2α Analog, Cloprostenol Sodium. Animals (Basel) 2020; 10:ani10122231. [PMID: 33261078 PMCID: PMC7760598 DOI: 10.3390/ani10122231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/18/2022] Open
Abstract
Simple Summary Semen collection in donkey jacks can last up to 90 min due to the long courtship needed for this species’ males to obtain sexual excitation and erection. In several domestic animals, ProstaglandinF2α successfully stimulated excitement in the male prior to collection and enhanced semen production. In our study, the prostaglandin analog cloprostenol sodium, administered prior to the semen collection, hastened erection and ejaculation in almost all donkey jacks. No differences have been found in semen production compared to control. Abstract Due to the long courtship needed to attain excitation and erection, donkey semen collection can take up to 90 min. ProstaglandinF2α (PGF2α) has been reported to hasten the onset of erection and ejaculation in domesticated mammals, presumably by inducing smooth muscle contractions in the internal genitalia. However, while it has been anecdotally used in donkeys, it has yet to be critically evaluated. This study aimed to compare behavioral and semen parameters in Catalan, Balearic, Amiata, and Miranda jacks treated with the PGF2α analogue cloprostenol sodium immediately prior to exposure to an estrus jenny. Nineteen donkeys were assigned in a crossover design to receive cloprostenol sodium (125 µg, i.m.; n = 53 collections) or saline (1 mL, i.m.; n = 53 collections). There were no differences for erection (52/53 vs. 52/53) or ejaculation (52/53 vs. 48/53) for collection attempts assigned to saline or cloprostenol sodium, respectively. Cloprostenol sodium significantly hastened treatment-to-erection and treatment-to-ejaculation times from 12.0 ± 1.6 to 6.0 ± 1.6 min and from 14.0 ± 1.4 to 9.6 ± 1.4 min, respectively. Significant effects of breed and age were observed in behavioral and parameters, but there were no effects of cloprostenol sodium administration on semen parameters. In conclusion, cloprostenol sodium administration immediately prior to semen collection hastened time to collect semen in donkeys with no detrimental effects on semen quality and can be used by practitioners to circumvent long delays in donkey semen collection.
Collapse
Affiliation(s)
- Duccio Panzani
- Department of Veterinary Clinical Sciences, University of Pisa, via Livornese 1286, San Piero a Grado, 56122 Pisa (PI), Italy; (D.F.); (F.C.); (R.M.); (A.R.)
- Correspondence:
| | - Miguel Quaresma
- Center of Animal and Veterinary Science (CECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal; (M.Q.); (A.M.-B.)
| | - Diana Fanelli
- Department of Veterinary Clinical Sciences, University of Pisa, via Livornese 1286, San Piero a Grado, 56122 Pisa (PI), Italy; (D.F.); (F.C.); (R.M.); (A.R.)
| | - Francesco Camillo
- Department of Veterinary Clinical Sciences, University of Pisa, via Livornese 1286, San Piero a Grado, 56122 Pisa (PI), Italy; (D.F.); (F.C.); (R.M.); (A.R.)
| | - Rebecca Moroni
- Department of Veterinary Clinical Sciences, University of Pisa, via Livornese 1286, San Piero a Grado, 56122 Pisa (PI), Italy; (D.F.); (F.C.); (R.M.); (A.R.)
| | - Alessandra Rota
- Department of Veterinary Clinical Sciences, University of Pisa, via Livornese 1286, San Piero a Grado, 56122 Pisa (PI), Italy; (D.F.); (F.C.); (R.M.); (A.R.)
| | - Ana Martins-Bessa
- Center of Animal and Veterinary Science (CECAV), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal; (M.Q.); (A.M.-B.)
| | - Miguel Nóvoa
- Association for the Study and Protection of Donkeys (AEPGA), Largo da Igreja, 5225-011 Atenor, Portugal;
| | - Jaime Catalán
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Veterinary Faculty, Autonomous University of Barcelona, E-08193 Bellaterra, Cerdanyola del Valles, Spain; (J.C.); (J.M.)
| | - Igor F. Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Champaign, IL 61802, USA;
| | - Giuseppe Conte
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy;
| | - Jordi Mirò
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Veterinary Faculty, Autonomous University of Barcelona, E-08193 Bellaterra, Cerdanyola del Valles, Spain; (J.C.); (J.M.)
| |
Collapse
|
4
|
Canisso IF, Panzani D, Miró J, Ellerbrock RE. Key Aspects of Donkey and Mule Reproduction. Vet Clin North Am Equine Pract 2019; 35:607-642. [PMID: 31672204 DOI: 10.1016/j.cveq.2019.08.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Donkeys are nonseasonal, polyestrous, territorial, and nonharem breeders. Although there are many similarities between horses and donkeys, there are also reproductive features that differ, from the longer cervix in the jenny to spermatogenic efficiency in the jack. Mules display reproductive cyclic activity but are rarely fertile. Frozen donkey semen has high pregnancy rates in mares, but lower rates in jennies. This article reviews key aspects of donkey and mule reproductive physiology, reproductive medicine, and assisted reproductive techniques that are useful for practitioners offering assisted reproductive techniques, and also for practitioners with the occasional client with a basic reproductive question.
Collapse
Affiliation(s)
- Igor Federico Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61802, USA.
| | - Duccio Panzani
- Department of Veterinary Science, University of Pisa, Pisa 56122, Italy
| | - Jordi Miró
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Robyn E Ellerbrock
- Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| |
Collapse
|
5
|
Papas M, Arroyo L, Bassols A, Catalán J, Bonilla-Correal S, Gacem S, Yeste M, Miró J. Activities of antioxidant seminal plasma enzymes (SOD, CAT, GPX and GSR) are higher in jackasses than in stallions and are correlated with sperm motility in jackasses. Theriogenology 2019; 140:180-187. [PMID: 31479834 DOI: 10.1016/j.theriogenology.2019.08.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 07/26/2019] [Accepted: 08/28/2019] [Indexed: 02/02/2023]
Abstract
This study compared the activities of four antioxidant enzymes (superoxide dismutase, SOD; catalase, CAT; glutathione peroxidase, GPX; and glutathione reductase, GSR) in the seminal plasma of stallions and jackasses. Eighteen stallion ejaculates and 24 jack ejaculates were collected through an artificial vagina. Seminal plasma was obtained by several centrifugations at 3000×g and 4 °C for 10 min, and activities of SOD, CAT, GPX and GSR were subsequently determined. We also evaluated whether the collecting season had any influence on the activities of these four enzymes in both stallions and jackasses. Antioxidant capacity of seminal plasma was significantly higher in jackasses than in stallions (mean ± SEM, SOD: 1707.7 ± 195.9 U/mL vs. 231.9 ± 29.6 U/mL; CAT: 9094.7 ± 1292.9 U/L vs.1682.7 ± 525.9 U/L; GPX 845.4 ± 106.0 U/L vs. 469.7 ± 60.3 U/L; GSR: 50.3 ± 5.1 U/L vs. 20.7 ± 4.6 U/L). Furthermore, whereas season had no effect on the activity of these four enzymes in stallions, the activities of CAT and GPX in jack seminal plasma were significantly higher in the summer than in the other seasons. In addition, the activities of SOD and CAT were found to be significantly correlated with the percentages of progressively motile spermatozoa, and with the percentages of linearity and straightness, respectively, in jackasses. In contrast, the activities of these four enzymes were not correlated with sperm quality parameters in stallions. Finally, while SOD, CAT, and GPX activities but not those of GSR were correlated in jackasses, the activities of all four enzymes were correlated each other in stallions. We can thus conclude that the activities of SOD, CAT, GPX and GSR differ between the seminal plasma of stallions and donkeys, and vary between seasons in jackasses.
Collapse
Affiliation(s)
- Marion Papas
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Universitat Autònoma Barcelona, Spain
| | - Laura Arroyo
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Sciences, Universitat Autònoma de Barcelona, Spain
| | - Anna Bassols
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Sciences, Universitat Autònoma de Barcelona, Spain
| | - Jaime Catalán
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Universitat Autònoma Barcelona, Spain
| | - Sebastián Bonilla-Correal
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Universitat Autònoma Barcelona, Spain
| | - Sabrina Gacem
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Universitat Autònoma Barcelona, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Unit of Cell Biology, Department of Biology, Institute of Food and Agricultural Technology, Faculty of Sciences, University of Girona, Girona, Spain.
| | - Jordi Miró
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Universitat Autònoma Barcelona, Spain.
| |
Collapse
|
6
|
Segabinazzi LG, Silva LF, Okada C, Medrado F, Papa F, Alvarenga MA. Plugged Ampullae in a Donkey Stallion ( Equus asinus ). J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2017.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Rota A, Puddu B, Sabatini C, Panzani D, Lainé AL, Camillo F. Reproductive parameters of donkey jacks undergoing puberty. Anim Reprod Sci 2018; 192:119-125. [PMID: 29500053 DOI: 10.1016/j.anireprosci.2018.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 11/26/2022]
Abstract
In male donkeys, puberty and the related events have been poorly characterized. The aim of this study was to evaluate the age at which male donkeys reach puberty, and characterize age associated changes in testicular size, testicular blood flow, serum testosterone concentration and semen quality. Every two months, starting at 6 months and finishing at 24 months of age, five male donkeys born in May to July were subjected to B-mode ultrasound examination to assess testicular size and scrotum content and blood serum sampling for testosterone concentration. From the age of 8 months, pulsed Doppler was employed to evaluate blood flow in the testicular artery. Testosterone serum concentration was evaluated via RIA. From the age of 12 months, monthly semen collections were attempted and semen was evaluated for sperm number, motility and morphology. Onset of puberty was defined as the first ejaculate containing ≥50 × 106 spermatozoa with ≥10% total motility. One of the donkeys was excluded from the statistical analyses due to a hydrocele presented during the study. Testes width was affected by age (P < 0.0001) and after an initial plateau increased linearly from 10 months of age. Pulsatility and resistivity indexes were also affected by age (P < 0.01), being significantly higher at 14 months than at 24 months. Testosterone serum concentration was affected by age (P < 0.0001) and was significantly lower at 6 months (0.1 ng/ml) compared to 22-24 months (≥0.8 ng/ml). Spermatozoa appeared in the ejaculate at a mean age of 18.7 months and puberty was attained between 19 and 20 months of age (mean: 19.5 months), between January and February. In conclusion, late spring born Amiata donkey colts reached puberty at 19-20 months of age. Puberty was accompanied by changes in testicular size, testicular blood flow and serum testosterone concentration.
Collapse
Affiliation(s)
- Alessandra Rota
- Dipartimento di Scienze Veterinarie, Università di Pisa, via livornese lato monte, 56122 San Piero a Grado, PI, Italy.
| | - Battista Puddu
- Dipartimento di Scienze Veterinarie, Università di Pisa, via livornese lato monte, 56122 San Piero a Grado, PI, Italy
| | - Chiara Sabatini
- Dipartimento di Scienze Veterinarie, Università di Pisa, via livornese lato monte, 56122 San Piero a Grado, PI, Italy
| | - Duccio Panzani
- Dipartimento di Scienze Veterinarie, Università di Pisa, via livornese lato monte, 56122 San Piero a Grado, PI, Italy
| | - Anne-Lyse Lainé
- PRC, INRA, CNRS, IFCE, Université de Tours, 37380, Nouzilly, France
| | - Francesco Camillo
- Dipartimento di Scienze Veterinarie, Università di Pisa, via livornese lato monte, 56122 San Piero a Grado, PI, Italy
| |
Collapse
|
8
|
Rota A, Sgorbini M, Panzani D, Bonelli F, Baragli P, Ille N, Gatta D, Sighieri C, Casini L, Maggiorelli MM, Aurich C, Camillo F. Effect of housing system on reproductive behaviour and on some endocrinological and seminal parameters of donkey stallions. Reprod Domest Anim 2017; 53:40-47. [DOI: 10.1111/rda.13050] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 06/28/2017] [Indexed: 11/29/2022]
Affiliation(s)
- A Rota
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - M Sgorbini
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - D Panzani
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - F Bonelli
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - P Baragli
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - N Ille
- Artificial Insemination and Embryo Transfer; Department for Small Animals and Horses; Vetmeduni Vienna; Vienna Austria
| | - D Gatta
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - C Sighieri
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - L Casini
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - MM Maggiorelli
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| | - C Aurich
- Artificial Insemination and Embryo Transfer; Department for Small Animals and Horses; Vetmeduni Vienna; Vienna Austria
| | - F Camillo
- Department of Veterinary Sciences; University of Pisa; Pisa Italy
| |
Collapse
|
9
|
Saragusty J, Lemma A, Hildebrandt TB, Göritz F. Follicular size predicts success in artificial insemination with frozen-thawed sperm in donkeys. PLoS One 2017; 12:e0175637. [PMID: 28520723 PMCID: PMC5435134 DOI: 10.1371/journal.pone.0175637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/29/2017] [Indexed: 12/16/2022] Open
Abstract
In asses, semen collection, cryopreservation, and artificial insemination (AI) with frozen-thawed semen have been scarcely described and success rate, particularly following AI, is reportedly low. In the absence of reliable protocols, assisted reproductive technologies cannot support the conservation efforts aimed at endangered wild ass species and domestic donkey breeds. Two experiments were conducted in this study. In experiment 1 we evaluated freezing Abyssinian donkey (N = 5, 4 ejaculates each) spermatozoa using three freezing extenders (Berliner Cryomedium + glycerol, BC+G; BotuCrio, BOTU; INRAFreeze, INRA) and two cryopreservation techniques (liquid nitrogen vapour, LNV; directional freezing, DF). Post-thaw evaluation indicated that BOTU and INRA were similar and both superior to BC+G (P ≤ 0.004 for all motility tests), and that DF was superior to LNV (P < 0.002 for all evaluation parameters). In experiment 2, relying on these results, we used Abyssinian donkey sperm frozen in BOTU and INRA by DF for AI (N = 20). Prior to AI, thawed samples were diluted in corresponding centrifugation media or autologous seminal fluids at 1:1 ratio. No difference was found between BOTU and INRA or between the addition of seminal fluids or media, all resulting in ~50% pregnancy, and no differences were noted between males (N = 4). The size of pre-ovulatory follicle was a significant (P = 0.001) predictor for AI success with 9/10 pregnancies occurring when follicular size ranged between 33.1-37.4 mm, no pregnancy when it was smaller, and only one when larger. A number of ass species face the risk of extinction. Knowledge gained in this study on the Abyssinian donkey can be customised and transferred to its closely related endangered species and breeds.
Collapse
Affiliation(s)
- Joseph Saragusty
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Alemayehu Lemma
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Debre Zeit, Ethiopia
| | - Thomas Bernd Hildebrandt
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Frank Göritz
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| |
Collapse
|
10
|
Carvalho L, Silva Filho J, Palhares M, Sales A, Gonczarowska A, Oliveira H, Resende Jr. T, Rossi R. Reproductive biology of Pêga Jackasses: characteristics of sperm-rich fraction collected using the split-ejaculate method. ARQ BRAS MED VET ZOO 2016. [DOI: 10.1590/1678-4162-7939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT The aim of this study was to evaluate the physical and morphological characteristics of the sperm-rich fraction of jackass semen. To this end, 130 ejaculates from five Pêga jackasses were collected using an open model artificial vagina. The sperm-rich fraction was collected using the split-ejaculate method and assessed for the number of mounts/ejaculate, for physical and morphological characteristics of the semen and number of doses produced/ejaculate. It was observed that all characteristics evaluated differed among the five jackasses, except for the head defect rates. The mean values obtained for the jackass sperm-rich fraction collected were: number of mounts/ejaculate - 1.27; semen volume - 20.21mL; motility - 84.53%; vigor - 4.46; motility after dilution - 80.10%; sperm concentration/mL - 894.38 x 106; total sperm/ejaculate - 16.14 x 109; number of insemination doses/ejaculate (400x106 motile sptz) - 33.39; number of insemination doses/ejaculate (800 x 106 motile sptz) - 16.69; and percentage of normal sperm - 90.46%. Thus, in the present experiment the split-ejaculate method using an open artificial vagina worked well with the jackasses, and the sperm-rich fraction of the ejaculate of Pêga jackasses had high quality and sperm concentration, allowing its use for semen processing without reducing the number of insemination doses produced per ejaculate.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - R. Rossi
- Universidade Federal de Minas Gerais, Brazil
| |
Collapse
|
11
|
Carvalho L, Silva Filho J, Palhares M, Sales A, Gonczarowska A, Oliveira H, Resende M, Rossi R. Physical and morphological characteristics of the first three jets of Pêga jackasses sperm-rich fraction. ARQ BRAS MED VET ZOO 2016. [DOI: 10.1590/1678-4162-7891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
ABSTRACT The first three jets of the sperm-rich fraction of Pêga jackasses were collected and assessed separately. Five fertile Pêga jackasses were used as semen donors and underwent fractionated semen collection, using an open model artificial vagina. The first three jets of the semen were collected separately and assessed for volume, sperm motility, vigor, concentration/mL of semen, and sperm morphology. These characteristics were compared between first, second and third jets and between jackasses. It was observed that the jet volume differed (P<0.05) between jackasses, although it was similar (P>0.05) between first, second and third jets. Sperm motility did not differ (P>0.05) between jets and jackasses. Vigor was similar (P>0.05) between jets of the same jackass, and only the first jet differed (P<0.05) between jackasses. The first, second and third jets of the sperm-rich fraction had decreased sperm concentrations (P<0.05) of 955.56, 725.56 and 280.56x 106 sperm/mL of semen, respectively. Sperm morphology differed between the first three jets only for the incidence of mid-piece defect, higher in the third one (4.26%), compared to the first (3.36%) and second (3.38%) ones. When comparing the morphological characteristics of the sperm-rich fraction between five jackasses, regardless of the jet, there were differences in the percentage of normal sperm, proximal cytoplasmic droplet, mid-piece and head defects.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - R. Rossi
- Universidade Federal de Minas Gerais, Brazil
| |
Collapse
|
12
|
Dorado J, Acha D, Ortiz I, Gálvez M, Carrasco J, Gómez-Arrones V, Calero-Carretero R, Hidalgo M. Effect of extender and amino acid supplementation on sperm quality of cooled-preserved Andalusian donkey (Equus asinus) spermatozoa. Anim Reprod Sci 2014; 146:79-88. [DOI: 10.1016/j.anireprosci.2014.02.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/05/2014] [Accepted: 02/07/2014] [Indexed: 11/15/2022]
|
13
|
Contri A, Robbe D, Gloria A, De Amicis I, Veronesi M, Carluccio A. Effect of the season on some aspects of the estrous cycle in Martina Franca donkey. Theriogenology 2014; 81:657-61. [DOI: 10.1016/j.theriogenology.2013.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 12/09/2013] [Accepted: 12/10/2013] [Indexed: 10/25/2022]
|
14
|
Schook MW, Wildt DE, Weiss RB, Wolfe BA, Archibald KE, Pukazhenthi BS. Fundamental Studies of the Reproductive Biology of the Endangered Persian Onager (Equus hemionus onager) Result in First Wild Equid Offspring from Artificial Insemination1. Biol Reprod 2013; 89:41. [DOI: 10.1095/biolreprod.113.110122] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
|
15
|
Carluccio A, Contri A, Amendola S, De Angelis E, De Amicis I, Mazzatenta A. Male isolation: A behavioral representation of the pheromonal ‘female effect’ in donkey (Equus asinus). Physiol Behav 2013; 118:1-7. [DOI: 10.1016/j.physbeh.2013.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 04/11/2013] [Accepted: 04/18/2013] [Indexed: 11/29/2022]
|
16
|
Carluccio A, Panzani S, Contri A, Bronzo V, Robbe D, Veronesi M. Influence of season on testicular morphometry and semen characteristics in Martina Franca jackasses. Theriogenology 2013; 79:502-7. [DOI: 10.1016/j.theriogenology.2012.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Revised: 11/02/2012] [Accepted: 11/03/2012] [Indexed: 11/26/2022]
|
17
|
Abstract
In this study, the effect of donkey sperm concentration in the straw during cryopreservation on the quality of thawed semen was evaluated. Samples from seven adult Martina Franca jackasses were collected three times using a Missouri artificial vagina. After estimation of volume and concentration, raw semen was evaluated for motility using a computer-assisted sperm analyzer (CASA); viability and acrosome integrity were also determined. Fresh semen was then centrifuged and re-suspended at five different concentrations (100, 250, 500, 750, and 1000×10(6)sperm/ml) with a commercial extender, packaged in 0.5ml straws, and frozen. After thawing, motility parameters, viability, and acrosome integrity were analyzed. The analysis of the data showed similar parameters of fresh semen compared with those of centrifuged and cooled samples. The sperm concentration in the straw affected the semen parameters analyzed after thawing, as suggested by evidence that when the concentration increased, the quality of the post-thawed semen decreased. Furthermore, the differences in total and progressive motility among samples at different concentrations are due to the immobilization of spermatozoa, as suggested by the finding that the percentage of static spermatozoa increased when the concentration increased. The reason for the impairment of semen quality when the sperm concentration increased was discussed. A great variability in cryo-resistance was found between jackasses but not within the same male, suggesting the presence of donkey males with semen that has acceptable and unacceptable freezing qualities.
Collapse
|
18
|
Oliveira MEF, de Almeida OM, Pinho RO, Vicente WR, Rodrigues LFS. Behavioural and seminal characteristics of Santa Ines rams subjected to successive semen collections in the Amazonian region. ITALIAN JOURNAL OF ANIMAL SCIENCE 2012. [DOI: 10.4081/ijas.2012.e67] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
19
|
Gloria A, Contri A, De Amicis I, Robbe D, Carluccio A. Differences between epididymal and ejaculated sperm characteristics in donkey. Anim Reprod Sci 2011; 128:117-22. [DOI: 10.1016/j.anireprosci.2011.09.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 09/15/2011] [Accepted: 09/18/2011] [Indexed: 10/17/2022]
|
20
|
|
21
|
PGF(2α), LH, testosterone, oestrone sulphate, and cortisol plasma concentrations around sexual stimulation in jackass. Theriogenology 2011; 75:1489-98. [PMID: 21295832 DOI: 10.1016/j.theriogenology.2010.12.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 12/01/2010] [Accepted: 12/12/2010] [Indexed: 11/27/2022]
Abstract
Many hormones are involved in the regulation of male reproductive functions, controlling sexual behavior, and influencing sexual arousal, the onset of erection and ejaculation, and the post-ejaculatory detumescence. The aims of this study were to analyze the plasma concentrations of 15-ketodihydro-PGF(2α) (PGFM), LH, testosterone (T), oestrone sulphate (OS), and cortisol (C) in relation to sexual stimulation and to evaluate the possible correlations among circulating hormones and between hormones and semen characteristics in the donkey stallion. Thirteen sexually experienced Martina Franca jackass of proven fertility were enrolled and semen was collected through an artificial vagina. Plasma samples were collected at 12, 9, 6 and 3 min before oestrous jenny exposure, at the first erection in the mating arena in the presence of an oestrous jenny, during ejaculation, at dismounting, 3, 6, 9 and 12 min after ejaculation in box, and then every 10 min during the following 50 min. PGFM showed an increasing trend with significant differences between the pre-ejaculatory and post-ejaculatory period, suggesting a role of this hormone in the control of ejaculation. LH showed a significantly higher concentration at ejaculation compared to last samples, while T showed significantly higher levels at erection, ejaculation and dismounting, probably for its influence on these processes and on sexual behavior. Finally, OS did not show any difference in the period of observation, while C presented a significant increase only 22 minutes after erection. The only hormonal correlation found was a positive one between LH and T at erection and dismounting, while T and OS were positively correlated with total and progressive motility, respectively.
Collapse
|
22
|
Canisso IF, Carvalho GR, Morel MCGD, Guimarães JD, McDonnell SM. Sexual behavior and ejaculate characteristics in Pêga donkeys (Equus asinus) mounting estrous horse mares (Equus caballus). Theriogenology 2009; 73:56-63. [PMID: 19775738 DOI: 10.1016/j.theriogenology.2009.07.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Revised: 07/06/2009] [Accepted: 07/17/2009] [Indexed: 11/20/2022]
Abstract
The objectives were to (i) characterize sexual behavior of donkey stallions (jacks; Equus asinus) during on-farm semen collection using estrous horse mares (mares; Equus caballus); (ii) compare behavior of young (less experienced) versus older (more experienced) jacks; (iii) determine whether semen suitable for artificial insemination (AI) could be collected using mares; and (iv) determine the suitability of using mares in field collection of semen from jacks. Six Pêga jacks (3.5 to 16 yr old), previously conditioned to breed mares, were used. Mount mares were confirmed in estrus by a teaser horse stallion (stallion) and a jack. Semen was collected with an artificial vagina, at intervals of 48 to 72h (180 collections). The mean+/-SD (young [3.5 yr] vs. old [14 to 16 yr]) were Flehmen response frequency, 7.4+/-5.8 (8.1+/-3.0 vs. 7.0+/-2.0); number of mounts without erection, 1.1+/-1.3 (2.1+/-1.4 vs. 1.2+/-0.4, P<0.05); latency from first exposure to mare to full erection on the ejaculatory mount, 18.3+/-17.7min (25.3+/-21.3 vs. 12.2+/-6.2, P<0.05); latency from erection to insertion, 5.1+/-3.5sec (5.3+/-3.8 vs. 4.8+/-3.2); and duration of copulation from insertion to dismount after ejaculation, 25.4+/-7.8sec (22.1+/-2.9 vs. 28.1+/-9.3). In all jacks, sexual behavior was generally normal, with the notable absence of open mouth behavior. Mare estrous behavior was markedly less intense than that in the presence of a stallion and usually absent. Semen characteristics were gel free volume, 47.3+/-28.7mL; gel volume, 71.8+/-54.8mL; total motility, 84.3+/-6.0%; progressive motility, 74.3+/-74.5%; sperm vigor, 3.9+/-0.5 (scale 1 to 5); sperm concentration, 253x10(6) cells/mL; and total number of sperm, 10.3x10(9) cells. Copulation duration was significantly correlated with gel free volume (r=0.9) and gel volume (r=0.7). We concluded that (i) the sexual behavior of jacks during semen collection using mares was similar to that reported for natural mating to jennies, (ii) precopulatory and copulatory behavior for the young (less experienced) jacks and older (more experienced) jacks were generally similar (except number of mounts without erection and latency to full erection); (iii) semen obtained using mares as stimulus and mount females was similar to that reported with estrous jennies; and (iv) semen collection from previously conditioned jacks, using estrous mares, was appropriate for field collection of semen.
Collapse
Affiliation(s)
- I F Canisso
- Equid Breeding Center, Department of Animal Science, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil.
| | | | | | | | | |
Collapse
|
23
|
Vidament M, Vincent P, Martin FX, Magistrini M, Blesbois E. Differences in ability of jennies and mares to conceive with cooled and frozen semen containing glycerol or not. Anim Reprod Sci 2009; 112:22-35. [DOI: 10.1016/j.anireprosci.2008.03.016] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2007] [Revised: 03/21/2008] [Accepted: 03/25/2008] [Indexed: 10/22/2022]
|