Biochemical components of stallion seminal plasma before and after the breeding season

Kosiniak, K.; Bittmar, A.

doi:10.1016/0378-4320(81)90018-x

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…The amount of Zn in the seminal plasma has been shown to be correlated with sperm concentration [ 22 , 23 ], motility and viability [ 23 ] in human semen. Seasonal variations in total protein in the seminal plasma were found in boar [ 15 ], ram [ 24 ] and stallion [ 25 ], although species-specific patterns in the profile of total protein content were observed. Total protein in boar ejaculates is highest in fall and winter compared to other seasons.…”

Section: Introductionmentioning

confidence: 99%

Potential factors affecting semen quality in the Asian elephant (Elephas maximus)

Thongtip

Saikhun

Mahasawangkul³

et al. 2008

Reprod Biol Endocrinol

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BackgroundOne of the major obstacles in using artificial insemination to manage genetics of elephant population in captivity is the large variations in semen quality among ejaculates within the same and among individuals. The objectives of this study were to determine the influences of (1) age (2) seasonality (3) and circulating testosterone (SrTest), triiodothyronine (SrT3) and tetraiodothyronine (SrT4), as well as seminal (4) testosterone (SpTest), zinc (SpZn) and protein (SpTP) on semen quality in the Asian elephantMethodsAnalyses, including motility, viability and morphology were performed in semen samples collected twice monthly from 13 elephant bulls (age range, 10-to 72-years) by manual stimulation between July 2004 and June 2005. Serum samples obtained monthly were assessed for SrTest, SrT3, SrT4, and seminal plasma samples were evaluated for, SpTest, SpZn and SpTP.ResultsThe highest semen quality was observed at age 23 to 43 years. Percentages of progressive motility and viable sperm were lowest at age 51 to 70 years (P < 0.05); on the other hand, sperm concentration was lowest at age 10 to 19 years (P < 0.05). Percentage of sperm with normal morphology was highest at age 23 to 43 years. The levels of SrT3, SrTest, SpTest and SpZn were lowest at age 51 to 70 years, whereas SrT4 was lowest at age 23 to 43 years. Seasonality significantly affected semen characteristics in which percentage of viable sperm and cell concentration were highest during rainy season and lowest during summer months (P < 0.05). However, percentage of sperm with normal morphology was highest in summer and lowest in rainy season (P < 0.05). Seasonality significantly influenced SrTest with elevated concentrations observed in rainy season and winter (P < 0.05).ConclusionThis study indicates that age and seasonality had influence on semen characteristics in the Asian elephant. The knowledge obtained in this study will improve our understanding of the reproductive biology of this species.

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Section: Introductionmentioning

confidence: 99%

Potential factors affecting semen quality in the Asian elephant (Elephas maximus)

Thongtip

Saikhun

Mahasawangkul³

et al. 2008

Reprod Biol Endocrinol

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“…In horses, the vesicular glands, the prostate and the vas deferens contribute to the composition of the liquid fraction of the ejaculate (Mann 1974). The content of SP includes various proteins, hormones, sugars, enzymes, organic ions, lipids amino and fatty acids (Mann 1964, Tischner et al 1974, Kosiniak 1975, Mann 1975, Pickett et al 1975, Gebauer et al 1976, Kosiniak 1980, Kosiniak and Bittmar 1981, Druart and De Graaf 2018 in the stallion. In each species, the above mentioned substances are used to accomplish one final aim, which is to keep the spermatozoa alive until they reach the oocyte in order to achieve a successful fertilization.…”

Section: Introductionmentioning

confidence: 99%

Polish Journal of Veterinary Sciences

Stelletta

Alberti

Çil

et al. 2021

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The identification of various substances in seminal plasma has opened the way to study their functionality. It was aimed to identify the electrophoretic protein profile (EPP) and biochemical parameters (BP) of seminal plasma (SP) as predictors of semen quality and fertility in stallion. Forty-six ejaculates from 7 fertile stallions, aged between 6-26 years, were collected from May to July and 117 mares were used to obtain fertility data. For each ejaculate, volume, sperm motility, concentration were determined and seminal plasma samples were collected to perform one--dimensional electrophoresis and biochemical profiling. Following the estrus detection, mares were inseminated with fresh sperm. Pregnancy rates and foal rates were recorded. The concentration of 15-18 kDa molecular weight (MW) proteins has shown a positive correlation with sperm concentration and foal rate. Besides, a strong positive correlation was found between sperm concentration and 23-28 kDa MW proteins (r=0.77). The volume of 19-22 kDa MW proteins was negatively correlated with pregnancy and foal rate. Similarly, the volume of high MW proteins (173-385 kDa) correlated negatively with sperm motility and foal rate. Apart from the protein profile, while Magnesium and Glucose levels were negatively correlated with sperm quality and foal rate, Cholesterol level was a positive indicator of the quality of semen as well as the foaling rate. Moreover, the total protein level was correlated negatively with the sperm concentration whereas triglyceride was correlated positively. In conclusion, EPP and BP of seminal plasma are valuable clinical tools as predictors of fertility and semen quality in the stallion.

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Biological and immunological roles of proteins in the sperm of domestic animals (review)

Matoušek¹

1985

Animal Reproduction Science

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Biochemical components of stallion seminal plasma before and after the breeding season

Cited by 4 publications

References 9 publications

Potential factors affecting semen quality in the Asian elephant (Elephas maximus)

Potential factors affecting semen quality in the Asian elephant (Elephas maximus)

Polish Journal of Veterinary Sciences

Biological and immunological roles of proteins in the sperm of domestic animals (review)

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