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citations
Cited by 27 publications
(18 citation statements)
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References 63 publications
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“…In rams, simulated circadian thermal stress conditions (from 38°C to 44 °C after a daily schedule for 8 weeks) in climatic chambers altered the percentage of rapidly motile sperm as well as the linearity and the average path velocity of spermatozoa (De et al, ). In bulls, after a 72‐hr scrotal insulation period (i.e., the scrotum was wrapped with cotton layers and covered with a plastic bag) or a high temperature exposure (35.5°C and 50% RH for 7 weeks), there were simultaneous alterations in either spermatogenesis and semen characteristics or several sperm parameters affecting IVF and in vitro embryo development (Lucio et al, ; Rhynes & Ewing, ). In response to high temperatures, animals tend to maintain homeothermy through physiological adjustments.…”
Section: Male Reproductive Apparatusmentioning
confidence: 99%
“…In rams, simulated circadian thermal stress conditions (from 38°C to 44 °C after a daily schedule for 8 weeks) in climatic chambers altered the percentage of rapidly motile sperm as well as the linearity and the average path velocity of spermatozoa (De et al, ). In bulls, after a 72‐hr scrotal insulation period (i.e., the scrotum was wrapped with cotton layers and covered with a plastic bag) or a high temperature exposure (35.5°C and 50% RH for 7 weeks), there were simultaneous alterations in either spermatogenesis and semen characteristics or several sperm parameters affecting IVF and in vitro embryo development (Lucio et al, ; Rhynes & Ewing, ). In response to high temperatures, animals tend to maintain homeothermy through physiological adjustments.…”
Section: Male Reproductive Apparatusmentioning
confidence: 99%
“…Intensive genetic selection for high milk production significantly shortened the thermoregulatory competence in dairy cows (De Rensis & Scaramuzzi, 2003), which is often detected as negative effects in reproductive parameters both in vivo and in vitro in cows and embryos under heat stress (HS) conditions (Chebel et al, 2004;De Rensis, Garcia-Ispierto, & Lopez-Gatius, 2015;Nabenishi et al, 2011;Rivera & Hansen, 2001). High temperature alters follicular development (Roth, 2015), steroidogenesis (Bridges, Brusie, & Fortune, 2005), and decreases the quality of females (Al-Katanani, Paula-Lopes, & Hansen, 2002) and male (Lucio et al, 2016) gametes. In vitro-produced bovine embryos demonstrated developmental inhibition when exposed to temperatures considered as heat-stressed cows in vivo, reducing cleavage and blastocyst rates (Rivera & Hansen, 2001).…”
mentioning
confidence: 99%
“…To evaluate the efficiency of the samples, 50 PIVEs were performed using approximately 3,000 viable oocytes (on average 20 oocytes per bull per IVEP). Oocytes collected from slaughterhouse ovaries by follicular aspiration were subjected to maturation (IVM), fertilization (IVF), and in vitro culture (IVC) according Lucio et al (2016). The cumulus oocytes complexes (COCs) were aspirated from follicles between 3 and 8 mm in diameter.…”
Section: Methodsmentioning
confidence: 99%