Effect of L-carnitine supplementation on seminal plasma quality of Iraqi drakes

2011 ◽  
Vol 3 (12) ◽  
pp. 10-14
Author(s):  
Hazim J Al-Daraji ◽  
◽  
Anmar O Tahir
2007 ◽  
Vol 76 (4) ◽  
pp. 595-600 ◽  
Author(s):  
E. Jacyno ◽  
A. Kołodziej ◽  
M. Kamyczek ◽  
M. Kawęcka ◽  
K. Dziadek ◽  
...  

The effect of addition of L-carnitine on boar semen quality was studied in 5 Pietrain boars at age 1.5 - 2.0 years. The boars received 500 mg of L-carnitine per day for 5 weeks. During this period, their ejaculates were collected once a week and evaluated for quality. The control ejaculates had been collected before the application of L-carnitine. It was found that the addition of L-carnitine to the boars' feed had a positive effect on the quality of boar semen. The total ejaculate volume and sperm-rich fraction volume increased by 11% and 10%, respectively; the total ejaculate sperm count increased by 11.5% (P < 0.05). Also, the number of spermatozoa with major and minor morphological changes decreased and seminal plasma activity of AspAT was significantly reduced (P < 0.01). Sperm concentration and motility, as well as normal acrosome sperm percentage, did not increase considerably. The positive effect of L-carnitine on boar semen quality was observable as early as after one week of its application.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alicja Kowalczyk ◽  
Elżbieta Gałęska ◽  
Ewa Czerniawska-Piątkowska ◽  
Anna Szul ◽  
Leszek Hebda

AbstractThe aim of this study was to analyze the relationship between the concentration of hormones in the seminal plasma, the bull maintenance system in the insemination station, and the regularity of sperm donation and the response to the phantom (libido level). An additional goal was to determine whether there is a relationship between the hormonal profile in the blood, the sperm plasma, the oxidative and antioxidant profile in the blood of bulls and the biometry of their testicles and scrotum, as well as the quality of their sperm in both different seasons and intensities of reproductive use. For the study, 220 healthy and sexually mature Polish Holstein–Friesian bulls were used. They all had normal libido and were fed equally. The animals were grouped according to the scheme: young (16–20 month/n = 60) and old (26–30 month/n = 60) including: individually housed (n = 30) and group housed (n = 30) young, old individually housed (n = 30) and group housed (n = 30) (n total animals = 120); young animals donating semen once a week (every Thursday) (n = 25) and sporadically (once every two months on a random day of the week) (n = 25), old animals donating semen once a week (every Thursday) (n = 25 ) and sporadic donors (once every two months on a random day of the week) (n = 25) (n total animals = 100). When analyzing the results of this study, it should be stated that regular use has a positive effect on the secretion of sex hormones in bulls. Higher levels of testosterone and lower levels of estradiol and prostaglandins resulted in higher sexual performance, expressed by a stronger response to the phantom. The differences in favor of regular use were independent of the bull's age. The results of our research illustrate that the quality of semen and its freezing potential may depend on the season and frequency of its collection, as well as on the age of the males.


2013 ◽  
Vol 57 (2) ◽  
pp. 281-285 ◽  
Author(s):  
Rafał Strzeżek ◽  
Krystyna Filipowicz ◽  
Marta Stańczak ◽  
Władysław Kordan

Abstract The resazurin reduction test (RRT) was subjected to spectrophotometric analysis to evaluate the quality of canine semen. Twenty four samples of canine semen were analysed. The absorption peaks for resazurin and resorufin were determined at 615 and 580 nm, respectively. The RRT ratio (RRTsperm-the ratio for samples containing spermatozoa, RRTplasma-the ratio for samples containing seminal plasma) was calculated by dividing the absorbance at 580 nm by the absorbance at 615 nm. Spearman’s correlation test was used to determine the significance of correlations between the analysed sperm parameters and the results of the resazurin reduction assay. The RRT ratio was highly correlated with sperm motility (r=0.68, P<0.01), progressive sperm motility (r=0.61, P<0.01), the subpopulation of cells with rapid velocity (r=0.72, P<0.01), and the subpopulation of cells with medium velocity (r= -0.54, P<0.05). A negative correlation was observed between the reducing capacity of seminal plasma vs. sperm with plasma membrane integrity (r= -0.60, P<0.01) and sperm with normal morphology (r= -0.58, P<0.01). The RRT test can be used as an additional tool for evaluation of the quality of canine semen.


2005 ◽  
Vol 42 (1) ◽  
pp. 79-83 ◽  
Author(s):  
Kazumi Kita ◽  
Shin-ichi Nakajima ◽  
Jiro Nakagawa

2017 ◽  
Vol 58 ◽  
pp. 103-111 ◽  
Author(s):  
Alexandra Usuga ◽  
Benjamin Rojano ◽  
Giovanni Restrepo
Keyword(s):  

2016 ◽  
Vol 144 ◽  
pp. 229-233 ◽  
Author(s):  
K.R. Martins ◽  
S.S.M. Gheller ◽  
C.E.R. Ferreira ◽  
K.L. Goularte ◽  
C.D. Corcini ◽  
...  
Keyword(s):  

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Afsoon Emami Naini ◽  
Mahnaz Moradi ◽  
Mojgan Mortazavi ◽  
Asghar Amini Harandi ◽  
Mehdi Hadizadeh ◽  
...  

In patients on maintenance hemodialysis several factors reduce the body stored carnitine which could lead to dyslipidemia, anemia, and general health in these patients. We evaluated the effect of oral L-carnitine supplementation on lipid profiles, anemia, and quality of life (QOL) in hemodialysis patients. In a randomized, double-blinded, placebo-controlled trial, end-stage renal disease (ESRD) patients on hemodialysis received either L-carnitine 1 g/d (n=24) or placebo (27 patients) for 16 weeks. At the end of the study, there was a significant decrease in triglyceride (-31.1±38.7 mg/dL,P=0.001) and a significant increase in HDL (3.7±2.8 mg/dL,P<0.001) levels in the carnitine group. Decrease in total cholesterol (−6.6±16.0 mg/dL,P=0.075) and increase in hemoglobin (0.7±1.7 g/dL,P=0.081) concentrations in the carnitine group were not significant. There was no statistically significant changes in LDL in any group (P>0.05). Erythropoietin dose was significantly decreased in both the carnitine (-4750±5772 mg,P=0.001) and the placebo group (-2000±4296 mg,P<0.05). No improvement was observed in QOL scores of two groups. In ESRD patients under maintenance hemodialysis, oral L-carnitine supplementation may reduce triglyceride and cholesterol and increase HDL and hemoglobin and subsequently reduce needed erythropoietin dose without effect on QOL.


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