The objective of this research was to determine whether a mass sperm motility in native ejaculate and a sperm dose-count (SDC) affect in vivo boar fertility. A total of 983 ejaculates taken from Landrace (n = 16 animals), Large White (n = 19 animals) and Duroc (n = 7 animals) breed boars were analyzed. The concentration of native sperm was assessed by means of a colorimeter, and the evaluation of mass sperm motility was performed by a subjective assessment using a microscope. On average, 20.70 doses for insemination were obtained per ejaculate and they were divided into three classes (SDC = ≤2.50; 2.51–4.00; ≥ 4.01 × 109). The insemination of 7661 breeding females was performed twice. The assessment of the effect was performed by means of a general linear model in the SAS 9.1.3 statistical package, using a model that includes a breed fixed effect and linear regression effect of motility nested within the class of sperm count in a dose. Average values of return rate (%), farrowing rate ...(%) and litter size at birth accounted for: 15.53%, 73.41% and 12.65 live piglets, respectively. All the traits of in vivo fertility varied under the effect of breed (p < 0.001). An increase in motility by one unit (%) resulted in a decreased percentage of return rate by 0.11% (p < 0.001) in all three SDC classes. On the other hand, the farrowing rate increased by 0.12–0.13% (p < 0.001) depending on SDC class. When litter size at birth is in question, a linear regression effect of motility was determined inside SDC with the highest sperm count (b = 0.01; p < 0.05).
TY - JOUR
AU - Savić, Radomir
AU - Radojković, Dragan
AU - Gogić, Marija
AU - Popovac, Mladen
AU - Petrović, Aleksandra
AU - Radović, Čedomir
PY - 2022-02-10
UR - http://r.istocar.bg.ac.rs/handle/123456789/835
AB - The objective of this research was to determine whether a mass sperm motility in native ejaculate and a sperm dose-count (SDC) affect in vivo boar fertility. A total of 983 ejaculates taken from Landrace (n = 16 animals), Large White (n = 19 animals) and Duroc (n = 7 animals) breed boars were analyzed. The concentration of native sperm was assessed by means of a colorimeter, and the evaluation of mass sperm motility was performed by a subjective assessment using a microscope. On average, 20.70 doses for insemination were obtained per ejaculate and they were divided into three classes (SDC = ≤2.50; 2.51–4.00; ≥ 4.01 × 109). The insemination of 7661 breeding females was performed twice. The assessment of the effect was performed by means of a general linear model in the SAS 9.1.3 statistical package, using a model that includes a breed fixed effect and linear regression effect of motility nested within the class of sperm count in a dose. Average values of return rate (%), farrowing rate (%) and litter size at birth accounted for: 15.53%, 73.41% and 12.65 live piglets, respectively. All the traits of in vivo fertility varied under the effect of breed (p < 0.001). An increase in motility by one unit (%) resulted in a decreased percentage of return rate by 0.11% (p < 0.001) in all three SDC classes. On the other hand, the farrowing rate increased by 0.12–0.13% (p < 0.001) depending on SDC class. When litter size at birth is in question, a linear regression effect of motility was determined inside SDC with the highest sperm count (b = 0.01; p < 0.05).
PB - MDPI
T2 - Chemistry Proceedings
T1 - Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?
VL - 10
IS - 1
SP - 10
DO - 10.3390/IOCAG2022-12213
ER -
@article{
author = "Savić, Radomir and Radojković, Dragan and Gogić, Marija and Popovac, Mladen and Petrović, Aleksandra and Radović, Čedomir",
year = "2022-02-10",
abstract = "The objective of this research was to determine whether a mass sperm motility in native ejaculate and a sperm dose-count (SDC) affect in vivo boar fertility. A total of 983 ejaculates taken from Landrace (n = 16 animals), Large White (n = 19 animals) and Duroc (n = 7 animals) breed boars were analyzed. The concentration of native sperm was assessed by means of a colorimeter, and the evaluation of mass sperm motility was performed by a subjective assessment using a microscope. On average, 20.70 doses for insemination were obtained per ejaculate and they were divided into three classes (SDC = ≤2.50; 2.51–4.00; ≥ 4.01 × 109). The insemination of 7661 breeding females was performed twice. The assessment of the effect was performed by means of a general linear model in the SAS 9.1.3 statistical package, using a model that includes a breed fixed effect and linear regression effect of motility nested within the class of sperm count in a dose. Average values of return rate (%), farrowing rate (%) and litter size at birth accounted for: 15.53%, 73.41% and 12.65 live piglets, respectively. All the traits of in vivo fertility varied under the effect of breed (p < 0.001). An increase in motility by one unit (%) resulted in a decreased percentage of return rate by 0.11% (p < 0.001) in all three SDC classes. On the other hand, the farrowing rate increased by 0.12–0.13% (p < 0.001) depending on SDC class. When litter size at birth is in question, a linear regression effect of motility was determined inside SDC with the highest sperm count (b = 0.01; p < 0.05).",
publisher = "MDPI",
journal = "Chemistry Proceedings",
title = "Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?",
volume = "10",
number = "1",
pages = "10",
doi = "10.3390/IOCAG2022-12213"
}
Savić, R., Radojković, D., Gogić, M., Popovac, M., Petrović, A.,& Radović, Č.. (2022-02-10). Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?. in Chemistry Proceedings
MDPI., 10(1), 10.
https://doi.org/10.3390/IOCAG2022-12213
Savić R, Radojković D, Gogić M, Popovac M, Petrović A, Radović Č. Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?. in Chemistry Proceedings. 2022;10(1):10.
doi:10.3390/IOCAG2022-12213 .
Savić, Radomir, Radojković, Dragan, Gogić, Marija, Popovac, Mladen, Petrović, Aleksandra, Radović, Čedomir, "Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?" in Chemistry Proceedings, 10, no. 1 (2022-02-10):10,
https://doi.org/10.3390/IOCAG2022-12213 . .
