Scrotal infrared digital thermography as a predictor of seasonal effects on sperm traits in Braford bulls

The aim of this study was to assess the seasonal effects of the environment on semen quality in bulls, using infrared thermography. Sperm motility (M), mass motion (MM), and vigor (VIG) were evaluated in sperm samples from 17 Bradford bulls aged approximately 24 months at the beginning of the study....

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Published in:International journal of biometeorology 2015-03, Vol.59 (3), p.357-364
Main Authors: Menegassi, Silvio Renato Oliveira, Barcellos, Júlio Otavio Jardim, Dias, Eduardo Antunes, Koetz, Celso, Jr, Pereira, Gabriel Ribas, Peripolli, Vanessa, McManus, Concepta, Canozzi, Maria Eugênia Andrighetto, Lopes, Flávio Guiselli
Format: Article
Language:English
Subjects:
analysis of variance
Animal Physiology
Animal reproduction
Animals
Autumn
bioclimatology
Biological and Medical Physics
Biophysics
Body Temperature
bulls
Cattle
Climate change
computer software
correlation
Earth and Environmental Science
Environment
Environmental effects
Environmental Health
Humidity
Male
Meteorology
microclimate
Original Research Paper
Plant Physiology
Relative humidity
Scrotum - anatomy & histology
Scrotum - physiology
seasonal variation
Seasons
semen
Semen Analysis
Sperm
sperm motility
Spermatogenesis
spermatozoa
Spring
Studies
Summer
Temperature
Temperature gradients
testes
Thermography
Variance analysis
vigor
Winter
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cited_by cdi_FETCH-LOGICAL-c499t-f8e6a7dd27337aef8821810e968b7f963ded7352fdd267847e1ec3f4ff180aca3
cites cdi_FETCH-LOGICAL-c499t-f8e6a7dd27337aef8821810e968b7f963ded7352fdd267847e1ec3f4ff180aca3
container_end_page 364
container_issue 3
container_start_page 357
container_title International journal of biometeorology
container_volume 59
creator Menegassi, Silvio Renato Oliveira
Barcellos, Júlio Otavio Jardim
Dias, Eduardo Antunes
Koetz, Celso, Jr
Pereira, Gabriel Ribas
Peripolli, Vanessa
McManus, Concepta
Canozzi, Maria Eugênia Andrighetto
Lopes, Flávio Guiselli
description The aim of this study was to assess the seasonal effects of the environment on semen quality in bulls, using infrared thermography. Sperm motility (M), mass motion (MM), and vigor (VIG) were evaluated in sperm samples from 17 Bradford bulls aged approximately 24 months at the beginning of the study. Infrared thermography images and data were collected using an infrared FLIR T 300 camera and Quick Report 1.2 SP2 software to determine the temperature of the proximal and distal poles of the testis and to assess the testicular temperature gradient. The seasonal effects on physiological, seminal, and climatic variables were analyzed by the GLM ANOVA and CORR procedures using SAS®. The microclimatic factors were recorded in hourly intervals, and the daily mean temperature and mean relative humidity were calculated to determine the daily temperature-humidity index (THI) every day for 1 year. The temperature gradient (TG) variations of the testes were significantly higher in the autumn (4.5 °C), winter (4.0 °C), and spring (2.9 °C) compared to summer (0.9 °C) (P 
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Sperm motility (M), mass motion (MM), and vigor (VIG) were evaluated in sperm samples from 17 Bradford bulls aged approximately 24 months at the beginning of the study. Infrared thermography images and data were collected using an infrared FLIR T 300 camera and Quick Report 1.2 SP2 software to determine the temperature of the proximal and distal poles of the testis and to assess the testicular temperature gradient. The seasonal effects on physiological, seminal, and climatic variables were analyzed by the GLM ANOVA and CORR procedures using SAS®. The microclimatic factors were recorded in hourly intervals, and the daily mean temperature and mean relative humidity were calculated to determine the daily temperature-humidity index (THI) every day for 1 year. The temperature gradient (TG) variations of the testes were significantly higher in the autumn (4.5 °C), winter (4.0 °C), and spring (2.9 °C) compared to summer (0.9 °C) (P < 0.05). Ocular globe temperatures were lower in the winter (27.6 °C) and autumn (26.8 °C) compared to summer (33.9 °C) and spring (31.1 °C) (P < 0.05). The average MM (2.58), M (52.64), and VIG (2.70) of the semen decreased in the summer compared to other seasons (P < 0.01). The TG was negatively correlated with THI (−0.44; P < 0.05). For the seminal variables, MaD (−0.45; P < 0.05) and TD (−0.50; P < 0.01) presented a negative correlation with TG. The TG had a positive correlation between M and VIG, which had values of 0.36 and 0.35, respectively (P < 0.05). We have concluded that infrared thermography can be used to assess the testicular temperature gradient and its consequences on physical and quantitative aspects of sperm.]]></description><identifier>ISSN: 0020-7128</identifier><identifier>EISSN: 1432-1254</identifier><identifier>DOI: 10.1007/s00484-014-0847-z</identifier><identifier>PMID: 24848445</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>analysis of variance ; Animal Physiology ; Animal reproduction ; Animals ; Autumn ; bioclimatology ; Biological and Medical Physics ; Biophysics ; Body Temperature ; bulls ; Cattle ; Climate change ; computer software ; correlation ; Earth and Environmental Science ; Environment ; Environmental effects ; Environmental Health ; Humidity ; Male ; Meteorology ; microclimate ; Original Research Paper ; Plant Physiology ; Relative humidity ; Scrotum - anatomy &amp; histology ; Scrotum - physiology ; seasonal variation ; Seasons ; semen ; Semen Analysis ; Sperm ; sperm motility ; Spermatogenesis ; spermatozoa ; Spring ; Studies ; Summer ; Temperature ; Temperature gradients ; testes ; Thermography ; Variance analysis ; vigor ; Winter</subject><ispartof>International journal of biometeorology, 2015-03, Vol.59 (3), p.357-364</ispartof><rights>ISB 2014</rights><rights>ISB 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c499t-f8e6a7dd27337aef8821810e968b7f963ded7352fdd267847e1ec3f4ff180aca3</citedby><cites>FETCH-LOGICAL-c499t-f8e6a7dd27337aef8821810e968b7f963ded7352fdd267847e1ec3f4ff180aca3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24848445$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Menegassi, Silvio Renato Oliveira</creatorcontrib><creatorcontrib>Barcellos, Júlio Otavio Jardim</creatorcontrib><creatorcontrib>Dias, Eduardo Antunes</creatorcontrib><creatorcontrib>Koetz, Celso, Jr</creatorcontrib><creatorcontrib>Pereira, Gabriel Ribas</creatorcontrib><creatorcontrib>Peripolli, Vanessa</creatorcontrib><creatorcontrib>McManus, Concepta</creatorcontrib><creatorcontrib>Canozzi, Maria Eugênia Andrighetto</creatorcontrib><creatorcontrib>Lopes, Flávio Guiselli</creatorcontrib><title>Scrotal infrared digital thermography as a predictor of seasonal effects on sperm traits in Braford bulls</title><title>International journal of biometeorology</title><addtitle>Int J Biometeorol</addtitle><addtitle>Int J Biometeorol</addtitle><description><![CDATA[The aim of this study was to assess the seasonal effects of the environment on semen quality in bulls, using infrared thermography. Sperm motility (M), mass motion (MM), and vigor (VIG) were evaluated in sperm samples from 17 Bradford bulls aged approximately 24 months at the beginning of the study. Infrared thermography images and data were collected using an infrared FLIR T 300 camera and Quick Report 1.2 SP2 software to determine the temperature of the proximal and distal poles of the testis and to assess the testicular temperature gradient. The seasonal effects on physiological, seminal, and climatic variables were analyzed by the GLM ANOVA and CORR procedures using SAS®. The microclimatic factors were recorded in hourly intervals, and the daily mean temperature and mean relative humidity were calculated to determine the daily temperature-humidity index (THI) every day for 1 year. The temperature gradient (TG) variations of the testes were significantly higher in the autumn (4.5 °C), winter (4.0 °C), and spring (2.9 °C) compared to summer (0.9 °C) (P < 0.05). Ocular globe temperatures were lower in the winter (27.6 °C) and autumn (26.8 °C) compared to summer (33.9 °C) and spring (31.1 °C) (P < 0.05). The average MM (2.58), M (52.64), and VIG (2.70) of the semen decreased in the summer compared to other seasons (P < 0.01). The TG was negatively correlated with THI (−0.44; P < 0.05). For the seminal variables, MaD (−0.45; P < 0.05) and TD (−0.50; P < 0.01) presented a negative correlation with TG. The TG had a positive correlation between M and VIG, which had values of 0.36 and 0.35, respectively (P < 0.05). 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Sperm motility (M), mass motion (MM), and vigor (VIG) were evaluated in sperm samples from 17 Bradford bulls aged approximately 24 months at the beginning of the study. Infrared thermography images and data were collected using an infrared FLIR T 300 camera and Quick Report 1.2 SP2 software to determine the temperature of the proximal and distal poles of the testis and to assess the testicular temperature gradient. The seasonal effects on physiological, seminal, and climatic variables were analyzed by the GLM ANOVA and CORR procedures using SAS®. The microclimatic factors were recorded in hourly intervals, and the daily mean temperature and mean relative humidity were calculated to determine the daily temperature-humidity index (THI) every day for 1 year. The temperature gradient (TG) variations of the testes were significantly higher in the autumn (4.5 °C), winter (4.0 °C), and spring (2.9 °C) compared to summer (0.9 °C) (P < 0.05). Ocular globe temperatures were lower in the winter (27.6 °C) and autumn (26.8 °C) compared to summer (33.9 °C) and spring (31.1 °C) (P < 0.05). The average MM (2.58), M (52.64), and VIG (2.70) of the semen decreased in the summer compared to other seasons (P < 0.01). The TG was negatively correlated with THI (−0.44; P < 0.05). For the seminal variables, MaD (−0.45; P < 0.05) and TD (−0.50; P < 0.01) presented a negative correlation with TG. The TG had a positive correlation between M and VIG, which had values of 0.36 and 0.35, respectively (P < 0.05). We have concluded that infrared thermography can be used to assess the testicular temperature gradient and its consequences on physical and quantitative aspects of sperm.]]></abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>24848445</pmid><doi>10.1007/s00484-014-0847-z</doi><tpages>8</tpages></addata></record>
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source Springer Nature:Jisc Collections:Springer Nature Read and Publish 2023-2025: Springer Reading List
subjects analysis of variance
Animal Physiology
Animal reproduction
Animals
Autumn
bioclimatology
Biological and Medical Physics
Biophysics
Body Temperature
bulls
Cattle
Climate change
computer software
correlation
Earth and Environmental Science
Environment
Environmental effects
Environmental Health
Humidity
Male
Meteorology
microclimate
Original Research Paper
Plant Physiology
Relative humidity
Scrotum - anatomy & histology
Scrotum - physiology
seasonal variation
Seasons
semen
Semen Analysis
Sperm
sperm motility
Spermatogenesis
spermatozoa
Spring
Studies
Summer
Temperature
Temperature gradients
testes
Thermography
Variance analysis
vigor
Winter
title Scrotal infrared digital thermography as a predictor of seasonal effects on sperm traits in Braford bulls
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