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Orihuela JC, Pinto-Santini L, Beracochea F, Giriboni J, Viera MN, Silveira P, Ungerfeld R. Time of day modified the time required for semen collection with electroejaculation and slightly affected the quality of fresh semen in rams. Trop Anim Health Prod 2023; 55:144. [PMID: 37017826 DOI: 10.1007/s11250-023-03564-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/29/2023] [Indexed: 04/06/2023]
Abstract
The aim was to compare some stress responses to electroejaculation (EE), and the quality of fresh semen, when ram semen is collected at dawn (06:00 h), noon (12:00 h), or evening (18:00 h). Twelve Corriedale rams were used, and semen was collected from four rams at each study time on three different days, with a Latin-square design. The time required for EE, the number of vocalizations emitted, heart rate, and rectal temperature were recorded, and fresh semen was evaluated. The time required for EE was shorter at evening than at dawn and noon (399.3 s, 480.6 s, and 460.2 s respectively; pooled SEM = 72.1; P = 0.03). The percentage of sperm with progressive motility was greater at noon than dawn (59.7% and 50.3%; pooled SEM = 5.8; P = 0.05). Curvilinear velocity was greater at dawn than evening (117.0 µm/s and 95.5 µm/s; pooled SEM = 7.1; P = 0.04), slow linear velocity was greater at evening than at dawn and noon (13.1 µm/s, 9.3 µm/s, and 8.5 µm/s respectively; pooled SEM = 1.7, P = 0.05), and the slow average path velocity was greater at evening than dawn and noon (16.2 µm/s, 11.7 µm/s, and 10.8 µm/s respectively; pooled SEM = 1.9, P = 0.05). In conclusion, the collection time modified the time required for electroejaculation and had only slight effects on the quality of fresh semen. Overall, the time of the day appears to have only slight effects on semen collection and quality.
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Affiliation(s)
- Juan Carlos Orihuela
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de La República, Ruta 8 Km 18, 13000, Montevideo, Uruguay.
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Campo Experimental Zacatepec, Carretera Zacatepec-Galeana Km 0.05, Zacatepec, 62780, Morelos, México.
| | - Livia Pinto-Santini
- Departamento de Producción Animal y Salud en los Sistemas Productivos, Facultad de Veterinaria, Universidad de La República, Ruta 1, Km 42.5, 80100, San José, Uruguay
| | - Florencia Beracochea
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de La República, Ruta 8 Km 18, 13000, Montevideo, Uruguay
| | - Julia Giriboni
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de La República, Ruta 8 Km 18, 13000, Montevideo, Uruguay
| | - María Noel Viera
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de La República, Ruta 8 Km 18, 13000, Montevideo, Uruguay
| | - Patricia Silveira
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de La República, Ruta 8 Km 18, 13000, Montevideo, Uruguay
| | - Rodolfo Ungerfeld
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de La República, Ruta 8 Km 18, 13000, Montevideo, Uruguay
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Sutherland JN, Becker SE, Katz LS. Effect of proximity to females on integument damage caused by self-enurination in male goats. Res Vet Sci 2021; 143:1-3. [PMID: 34953407 DOI: 10.1016/j.rvsc.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 12/03/2021] [Accepted: 12/16/2021] [Indexed: 11/17/2022]
Abstract
In male goats, self-enurination (SE) is the downward turning of the head and shoulders while urinating onto the face and front legs. Although it provides important chemical cues to females, other males, and even self, it is a costly behavior that can create a range of problems including erythema, irritation, hair loss, and compromised skin. It was hypothesized that the extent of integument damage from SE on bucks' faces and front legs would be increased by housing bucks near females. Four bucks were housed with fence-line contact to females ("Near" bucks), and four bucks were housed without fence-line contact to females ("Far" bucks). Each buck was photographed every other week over an 18-wk period during the breeding season. During each imaging session, seven different photographic views were captured, and burn areas were quantified for each buck. Overall, more Near bucks had urine burn than Far bucks, and Near bucks developed urine burn earlier in the breeding season than did Far bucks. Housing bucks close to females increases the extent of integument damage from SE. These findings may help goat breeders develop management practices to improve animal well-being by minimizing urine burn injury to bucks.
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Affiliation(s)
- Jamie N Sutherland
- Department of Animal Sciences, Rutgers University, 84 Lipman Drive, New Brunswick, NJ 08901, USA
| | - Susan E Becker
- Department of Animal Sciences, Rutgers University, 84 Lipman Drive, New Brunswick, NJ 08901, USA.
| | - Larry S Katz
- Department of Animal Sciences, Rutgers University, 84 Lipman Drive, New Brunswick, NJ 08901, USA.
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de Moura Fernandes DA, de Souza CV, Alvarez Balaro MF, Rodrigues Santos JD, Barbosa Dos Santos VM, Campos Pereira da Costa MM, da Silva Carvalho AB, Rios Rodrigues AL, Ungerfeld R, Brandão FZ. Response of rams to electroejaculation following the administration of oxytocin and cloprostenol with or without GnRH. Theriogenology 2021; 173:32-36. [PMID: 34265698 DOI: 10.1016/j.theriogenology.2021.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 06/27/2021] [Accepted: 06/29/2021] [Indexed: 10/21/2022]
Abstract
The present study aims to evaluate the effect of administering prostaglandin (250 μg cloprostenol) and oxytocin (10 UI) or a GnRH agonist (4.2 μg buserelin acetate) on rams' physiological responses to electroejaculation and the ejaculate's characteristics. The study was performed with a 2 × 2 factorial arrangement, according to whether it used oxytocin and prostaglandin (OXPGF) or GnRH. Therefore, there were four treatments: GControl = saline; GOXPGF = administration of PGF2α and oxytocin; GGnRH = administration of GnRH; administration of GOXPGF + GnRH = GnRH and PGF2α + oxytocin. An interaction between the hormonal treatments in the heart rate occurred: while the heart rate decreased when using OXPGF alone (control: 113.7 bpm vs. GOXPGF: 103.5 bpm, pooled SEM; P = 0.02), it did not modify when applying both treatments simultaneously and administering GnRH (GGnRH: 109.1 bpm vs. GOXPGF + GnRH: 111.5 bpm respectively, pooled SEM = 4.5). The respiratory rate also decreased with the administration of OXPGF (38.7 vs. 46.3 with and without OXPGF, pooled SEM = 10.0, P = 0.003). Administering OXPGF also tended to decrease the temperature (38.77 °C vs. 38.94 °C, with and without OXPGF, respectively, pooled SEM = 0.06; P = 0.056). Blood glucose increased with the administration of OXPGF from 58.7 mg/dL to 62.4 mg/dL (pooled SEM = 1.3, P = 0.014) and varied with time. CK concentrations increased from 641.8 mg/dL to 881.7 mg/dL (pooled SEM = 50.6) with the administration of OXPGF. GnRH administration decreased cortisol concentration from 7.3 ng/mL to 2.1 ng/mL (pooled SEM = 1.4; P = 0.04). The treatments had no effects on the time required for EE, the pulse at which the animals began and ended the ejaculation, or the vocalizations emitted during EE. There were no effects in any evaluated sperm variable. The research concluded that the administration of oxytocin and analogs of PGF2alpha decreased the stress response to electroejaculation, as well as administering GnRH agonist was slightly effective as it only decreased cortisol concentration. Also, these treatments, either alone or combined, did not affect the characteristics of the ejaculate collected.
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Affiliation(s)
| | - Clara Vieira de Souza
- Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, Rio de Janeiro, 24230-340, Brazil
| | | | | | | | | | | | - André Luís Rios Rodrigues
- Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, Rio de Janeiro, 24230-340, Brazil
| | - Rodolfo Ungerfeld
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Lasplaces 11 1550, Montevideo, 11600, Uruguay
| | - Felipe Zandonadi Brandão
- Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, Rio de Janeiro, 24230-340, Brazil.
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Fritz WF, Becker SE, Katz LS. Urine from domesticated male goats (Capra hircus) provides attractive olfactory cues to estrous females. Appl Anim Behav Sci 2021. [DOI: 10.1016/j.applanim.2021.105252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ungerfeld R, Viera MN, Freitas-de-Melo A, Giriboni J, Casuriaga D, Silveira P. Seasonality of the stress response in goat bucks when there is use of electroejaculation for semen collection. Anim Reprod Sci 2021; 226:106719. [PMID: 33592529 DOI: 10.1016/j.anireprosci.2021.106719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 11/19/2022]
Abstract
Electroejaculation (EE) is frequently used to collect semen, but this procedure is both stressful and painful. In seasonal-breeding species the sensitivity to stressors might vary with season of the year when semen collection occurs, therefore, the present study was conducted to compare the responses when imposing the EE procedure, stress response to EE and fresh semen characteristics in goat bucks throughout the year. Semen was collected using EE from goat bucks once in autumn (mid-breeding season), winter (transition to the non-breeding season), spring (non-breeding season), and summer (beginning of the breeding season). The number of pulses applied during ejaculation was larger in the autumn and spring than winter and summer months. The number of vocalizations/pulse while bucks were ejaculating was greater in the summer than winter and spring months. The increase in heart rate was greater in spring than summer months. Cortisol concentration was least in the autumn, and concentration of creatine kinase (CK) was greatest in summer. Sperm mass motility was greater in autumn than spring months. Spermatozoa concentration, total number of spermatozoa ejaculated, motile spermatozoa ejaculated, and progressively motile spermatozoa were greater in the autumn and spring than in the winter and summer months. The bucks were less stressed by imposing EE procedures in the autumn, and buck responses were greater in the spring-summer period. Bucks had a greater incremental increase in serum CK and number of vocalizations in the summer months, indicating there was a greater muscular damage and quite likely pain associated with lesser semen quality.
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Affiliation(s)
- Rodolfo Ungerfeld
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay.
| | - María Noel Viera
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - Aline Freitas-de-Melo
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - Julia Giriboni
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - Daniela Casuriaga
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - Patricia Silveira
- Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
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Moraes AB, Giacomini ACVV, Genario R, Marcon L, Scolari N, Bueno BW, Demin KA, Amstislavskaya TG, Strekalova T, Soares MC, de Abreu MS, Kalueff AV. Pro-social and anxiolytic-like behavior following a single 24-h exposure to 17β-estradiol in adult male zebrafish. Neurosci Lett 2020; 747:135591. [PMID: 33359732 DOI: 10.1016/j.neulet.2020.135591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/30/2020] [Accepted: 12/18/2020] [Indexed: 01/06/2023]
Abstract
Estradiol (17β-estradiol, E2) is a crucial estrogen hormone that regulates sexual, cognitive, social and affective behaviors in various species. However, complex central nervous system (CNS) effects of E2, including its activity in males, remain poorly understood. The zebrafish (Danio rerio) is rapidly becoming a powerful novel model system in translational neuroscience research. Here, we evaluate the effects of a single 24-h exposure to 20 μg/L of E2 on behavioral and endocrine (cortisol) responses in adult male zebrafish. Overall, E2 exerted pro-social effect in the social preference test, reduced whole-body cortisol levels, elevated exploration in the novel tank test and increased the shoal size in the shoaling test, indicative of an anxiolytic-like profile of this hormone in male zebrafish. Supporting mounting human and rodent evidence on the role of E2 in behavioral regulation, the observed pro-social and anxiolytic-like effects of E2 in male zebrafish reinforce the use of this aquatic organism in studying steroid-mediated CNS mechanisms of complex affective and social behaviors.
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Affiliation(s)
- Andréia B Moraes
- Postgraduate Program in Environmental Sciences, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Ana C V V Giacomini
- Postgraduate Program in Environmental Sciences, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil; Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Rafael Genario
- Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Leticia Marcon
- Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Naiara Scolari
- Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Barbara W Bueno
- Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Konstantin A Demin
- Institute of Experimental Medicine, Almazov National Medcial Research Center, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Granov Russian Scientific Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia; Neuroscience Program, Sirius University, Sochi, Russia
| | - Tamara G Amstislavskaya
- Scientific Research Institute of Neurosciences and Medicine, Novosibirsk, Russia; Zelman Institute of Medicine and Psychology, Novosibirsk State University, Novosibirsk, Russia
| | - Tatyana Strekalova
- Department of Psychiatry and Neuropsychology, Maastricht University, Netherlands; Laboratory of Psychiatric Neurobiology, Sechenov 1st Moscow State Medical University, Moscow, Russia; Research Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Marta C Soares
- CIBIO, Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
| | - Murilo S de Abreu
- The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA; Laboratory of Cell and Molecular Biology and Neurobiology, Moscow Institute of Physics and Technology, Moscow, Russia; Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil.
| | - Allan V Kalueff
- School of Pharmacy, Southwest University, Chongqing, China; Ural Federal University, Ekaterinburg, Russia.
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Giriboni J, Lacuesta L, Santiago-Moreno J, Ungerfeld R. Chronic use of a GnRH agonist (deslorelin) or immunization against GnRH: effects on testicular function and sperm quality of bucks. Domest Anim Endocrinol 2020; 71:106395. [PMID: 31731252 DOI: 10.1016/j.domaniend.2019.106395] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 11/18/2022]
Abstract
Chronic use of GnRH agonists and immunization against GnRH have been used as reversible contraceptive methods. The aim of this study was to compare the effectiveness of both treatments to inhibit reproductive function of adult bucks, in terms of strength and duration of the effects. We used 9 control untreated bucks (CON), 7 bucks treated chronically with a GnRH agonist (subcutaneous implants with 7.4 mg of deslorelin, Suprelorin, Virbac) (AGO), and another 7 bucks were immunized against GnRH (dose of 2 mL of Improvac-Zoetis with 300 μg of a synthetic incomplete analog of natural GnRH; 300 mg of diethylaminoethyl-dextran; and 2.0 mg of chlorocresol) (IMM). Testicular and sperm evaluations, testosterone concentrations, and male odor were determined from 4 wk before applying the treatments until 17 mo of their application. Scrotal circumference of CON (21.0 ± 0.1 cm) and IMM (21.2 ± 0.2 cm) was greater than that of AGO bucks (19.9 ± 0.2 cm) (P < 0.05 for each), without difference between CON and IMM bucks. Pixels' color intensity of testicular ultrasound images was not affected by treatment (general mean ± SEM: 116.0 ± 1.8). Testosterone concentration was greater in CON than AGO and IMM in months 3 and 4, greater in CON and IMM than AGO bucks in months 15 and 16, and greater in IMM than CON and AGO bucks in month 17 (P < 0.05 for all comparisons). Male odor was greater in CON (1.5 ± 0.0) than IMM bucks (1.3 ± 0.0) and greater in IMM than AGO (1.1 ± 0.0) bucks (P < 0.05 for each). Treatment negatively affected all the sperm variables: the total number of sperm in the ejaculate, sperm motility, sperm with normal morphology and sperm with integral membrane function. It was concluded that both treatments were effective in inhibiting the reproductive axis; however, neither of them produced azoospermia or decreased testosterone concentrations to undetectable levels. With both treatments, there were individual males exhibiting characteristics of fertility in all periods of the study. However, chronic use of a GnRH agonist seemed to be the most effective treatment in terms of duration and strength.
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Affiliation(s)
- J Giriboni
- Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay.
| | - L Lacuesta
- Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - J Santiago-Moreno
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - R Ungerfeld
- Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
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