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Molina JCJ, da Silva RS, Bidegain FA, Souza YB, Purdy PH, Blackburn HD, Azevedo HC. Bioclimatic thermal stress indices and their relationships with andrological characteristics in hair rams. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2024; 68:253-261. [PMID: 38036706 DOI: 10.1007/s00484-023-02587-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 09/25/2023] [Accepted: 11/08/2023] [Indexed: 12/02/2023]
Abstract
This study evaluated relationships among reproductive parameters and the bioclimatic indices: temperature and humidity index (THI), equivalent temperature index (ETI), black globe temperature and humidity index (BGTHI), and thermal comfort index (TCI), during the first 45 days of spermatogenesis (SP-45) and during the 15 days of sperm transit through the epididymis (STP-15) that preceded the reproductive assessments (ReA). Such information is useful in determining the optimal breeding season in Northeast Brazil. Santa Inês rams (n = 25) underwent two ReA in three periods of the year (D-P = dry; R-P = rainy and RD-P = rainy/dry transition), and the bioclimatic indices were calculated at the corresponding SP-45 and STP-15 timepoints prior to each ReA. Sperm kinetic parameters in D-P were depressed compared to R-P and RD-P (P < 0.05). The index values had an antagonistic relationship with most parameters and regression analysis demonstrated that the BGTHI and the TCI had a negative association with the progressive motility, curvilinear, straight line, and average path velocities, and a positive association with slow sperm in the ejaculate in SP-45 and STP-15 phases (P < 0.01). Semen quality kinetics is affected throughout the year by the environment and it is apparent that it is impaired in D-P and better in R-P and RD-P seasons. The BGTHI and TCI measured in the sperm production phase classified the environment most coherently and presented better association with the behavior of sperm kinetics.
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Affiliation(s)
- Julio Constantino Jerí Molina
- Federal University of Sergipe - Universidade Federal de Sergipe - UFS Postgraduate Program in Agriculture and Biodiversity - Programa de Pós-graduação em Agricultura e Biodiversidade - PPGAGRI, São Cristóvão, Brazil.
| | - Rebeca Santos da Silva
- Federal University of Sergipe - Universidade Federal de Sergipe - UFS -Postgraduate Program in Animal Science - Programa de Pós-graduação em Zootecnia - PROZOOTEC, São Cristóvão, Brazil
| | - Fabiana Almeida Bidegain
- Federal University of Sergipe - Universidade Federal de Sergipe - UFS -Postgraduate Program in Animal Science - Programa de Pós-graduação em Zootecnia - PROZOOTEC, São Cristóvão, Brazil
| | - Yânca Bizerra Souza
- Brazilian Agricultural Research Corporation - Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA - Embrapa Tabuleiros Costeiros - Embrapa Coastal Tablelands, Avenida Beira Mar, 3250 Jardins, Aracaju, SE, 49025-040, Brazil
| | - Phillip H Purdy
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), National Animal Germplasm Program, 1111 S. Mason St., Fort Collins, CO, 80521-4500, USA
| | - Harvey D Blackburn
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), National Animal Germplasm Program, 1111 S. Mason St., Fort Collins, CO, 80521-4500, USA
| | - Hymerson Costa Azevedo
- Brazilian Agricultural Research Corporation - Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA - Embrapa Tabuleiros Costeiros - Embrapa Coastal Tablelands, Avenida Beira Mar, 3250 Jardins, Aracaju, SE, 49025-040, Brazil
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Ali A, Derar DR, Osman SA, Tharwat M, Al-Sobayil F, Elshahed M. Scrotal enlargement in rams and bucks in Qassim region, central of Saudi Arabia: clinical and ultrasonographic findings and seroprevalence of brucellosis. Trop Anim Health Prod 2019; 51:2109-2114. [PMID: 31161484 DOI: 10.1007/s11250-019-01937-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/15/2019] [Indexed: 11/26/2022]
Abstract
The aim of this study was to clarify the causes of scrotal enlargement in rams and bucks in Qassim region of Saudi Arabia. Enlarged scrotal contents of rams and bucks (n = 153) were examined by visual inspection, palpation, and ultrasonography. Blood samples were obtained and tested for Brucella sp. infection. Clinical and ultrasonographic findings showed that scrotal enlargement was mainly associated with orchitis, peri-orchitis, and epididymitis. Miscellaneous findings were scrotal hernia, scrotal hematoma, and hydrocele. The frequencies of orchitis, peri-orchitis, and epididymitis were 47.4, 21.1, and 14.1% in Awassi rams; 54.5, 21.7, and 8.7% in Najdi rams; 52.3, 20.5, and 9.1% in Ardi bucks; and 50, 16.7, and 16.7% in Damascus bucks, respectively. Orchitis was associated with no-abscess formation (23%), single-abscess formation (15.4%), and multiple-abscesses formation (61.6%). Peri-orchitis was characterized by hard consistency, atrophy of the testes, and extensive connective tissue formation. Epididymitis was observed mainly at the tail of the epididymis (82.4%) but rarely at the head (17.6%). Epididymitis was associated in many cases with abscessation (70.6%). Males with orchitis, peri-orchitis, and epididymitis were positive for Brucella melitensis and Brucella ovis in the frequency of 21.3% and 48.8%, respectively. In conclusion, scrotal enlargement in rams and bucks in Qassim region is caused mainly by inflammation of the testis and/or epididymis and associated tremendously with brucellosis seropositivity.
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Affiliation(s)
- Ahmed Ali
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Asyut, Egypt
| | - Derar R Derar
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Asyut, Egypt
| | - Salama A Osman
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia.
- Department of Animal Medicine, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El Sheikh, Egypt.
| | - Mohamed Tharwat
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
- Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Fahd Al-Sobayil
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Mohamed Elshahed
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
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Dascanio J, Roberson J, Pfent C, Nahar VK, Arauz M, Alexander K, Roberts B, Cope DA, Bridger R, Botsko D. The prevalence of ultrasonographic abnormalities and histopathologic lesions is high in testes of yearling tropical hair rams. Vet Radiol Ultrasound 2019; 60:338-345. [PMID: 30859678 DOI: 10.1111/vru.12728] [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: 08/28/2018] [Revised: 12/23/2018] [Accepted: 12/28/2018] [Indexed: 11/29/2022] Open
Abstract
Ultrasonography is commonly used to examine testes as part of a breeding soundness examination in sheep, especially, in cases of infertility or when gross testicular abnormalities are present. A descriptive, prospective, prevalence study was conducted to characterize the ultrasonographic, histopathologic, and spermatozoal morphology abnormalities present in a group of yearling tropic hair rams on the island of St. Kitts. Hyperechoic and shadowing abnormalities increased over a 6 month study period. Hyperechoic abnormalities were present in one or both testes in 89% (25/28) of yearling rams and 71% (40/56) of testes at castration. Shadowing abnormalities were present in one or both testes in 46% (13/28) of rams and 34% (19/56) of testes at castration. Shadowing was present more with moderate and severe hyperechoic abnormalities, with few testes in the mild category having any shadowing. As hyperechoic and shadowing abnormalities increased in severity, so did the severity of microscopic lesions including increased interstitial cellularity/fibrosis, interstitial mineralization, seminiferous tubules mineralization (hyperechoic only), and chronic lymphoplasmacytic orchitis. There were no spermatozoal morphologic abnormalities other than an increase in distal cytoplasmic droplets. The study findings detail a pathologic event in this group of yearling rams that has an unknown etiology. Potential causes may include scrotal insulation, trauma, infectious causes, immunity alterations, nutritional imbalances, and ingestion of a toxin. Further studies are required to elucidate the causative agent.
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Affiliation(s)
- John Dascanio
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - Jerry Roberson
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - Catherine Pfent
- College of Veterinary Medicine, Lincoln Memorial University, Harrogate, Tennessee
| | - Vinayak K Nahar
- Center for Animal and Human Health in Appalachia, College of Veterinary Medicine, Lincoln Memorial University, Harrogate, Tennessee
| | - Maziel Arauz
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - Kerry Alexander
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - Brian Roberts
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - D Andrew Cope
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - Rhett Bridger
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
| | - Dana Botsko
- Ross University School of Veterinary Medicine, Basseterre, St Kitts, West Indies
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Jeremy M, Gurusubramanian G, Roy VK. Localization pattern of visfatin (NAMPT) in d -galactose induced aged rat testis. Ann Anat 2017; 211:46-54. [DOI: 10.1016/j.aanat.2017.01.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 12/17/2016] [Accepted: 01/12/2017] [Indexed: 01/09/2023]
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Andrological, pathologic, morphometric, and ultrasonographic findings in rams experimentally infected with Brucella ovis. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2011.08.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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