scholarly journals Gross testicular morphometric parameters and sperm reserves in indigenous Ghanaian West African dwarf goats

2021 ◽  
Vol 19 (3) ◽  
pp. 233-236
Author(s):  
J. Atawalna ◽  
D. Essel-Cobbinah ◽  
P.D. Akpalu ◽  
B.O. Emikpe
Keyword(s):  
Semen Quality ◽  
Tunica Albuginea ◽  
Gonadosomatic Index ◽  
Quality Parameters ◽  
West African ◽  
Morphometric Parameters ◽  
Sperm Production ◽  
Cross Sectional ◽  
West African Dwarf ◽  
Length Width

The West African Dwarf (WAD) goat has genetic potentials that can be exploited for improved goat production. However, their testicular morphometric parameters and sperm reserves in Ghana are not well known. A cross-sectional study was conducted at the Sabtiu Musah abattoir in Kumasi, Ghana, to evaluate the gross testicular morphometric parameters and sperm reserves in 10 indigenous WAD goats. The samples were stored on an ice chest and transported to the Regional Veterinary Laboratory for analysis on the day of collection. In the laboratory, the testes and epididymis were separated by dissection and then freed of all connective tissue and the Tunica albuginea. The weight, length, width and volume of the testis were determined. A segment of testicular parenchyma was incised and homogenized in a 20 ml normal saline solution. The resulting homogenate was stored in the refrigerator overnight and a filtered aliquot used for estimating spermatid concentration and sperm reserves. The weight, length, width, volume of the testis and the gonadosomatic index were 70.09 ±14.19 gm, 7.46 ± 0.52 cm, 5.08 ± 0.62, cm, 102.40 ± 29.40 ml and 5.09 ± 0.07%, respectively. The sperm reserves per the whole testis, sperm reserves per gramme testis, Daily Sperm production (DSP), and DSP per gramme testis of Ghanaian WAD bucks were 146.0 ± 50.95, 2.2 ± 0.62, 41.01 ± 14.3 and 0.62 ± 0.17 x109 spermatozoa, respectively. Indigenous West African Draft goats have a high potential for sperm production. It is recommended that further research be conducted on the semen quality parameters of this breed.

P–112 Association between dietary total antioxidant capacity and semen quality parameters in male partners of couples attempting fertility

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
G Eslamian ◽  
S Rohani ◽  
N Shoaibinobarian
Keyword(s):  
Antioxidant Capacity ◽  
Dietary Pattern ◽  
Total Antioxidant Capacity ◽  
Semen Quality ◽  
Sperm Count ◽  
Quality Parameters ◽  
Cross Sectional ◽  
Abnormal Sperm ◽  
Total Antioxidant ◽  
Dietary Total Antioxidant Capacity

Abstract Study question Is there any association between dietary total antioxidant capacity (TAC) and semen quality parameters in male partners of couples attempting fertility? Summary answer Greater adherence to diets high in TAC was significantly associated with higher total sperm count, sperm concentration, and sperm motility. What is known already Among multiple factors that affect the etiology of poor semen quality and male infertility, dietary factors have an important contribution. Also, chronic oxidative stress negatively effects semen quality. Whether adherence to the diet rich in antioxidants is associated with better semen quality remains largely unexplored.The concentration of single antioxidant cannot show the total antioxidant power of the diet, therefore the concept of dietary total antioxidant capacity (TAC) was invented.Dietary scores are useful approach to evaluate the degree of adherence to specific dietary pattern and its benefits in regard to health Study design, size, duration This was a cross-sectional study of 350 men from couples attending a fertility center in Tehran, Iran, recruited between June 2015 and September 2019. Men aged 25–50 years with complete dietary data were analyzed. Participants/materials, setting, methods Diet was assessed via a reproducible and valid 168-item semi-quantitative food frequency questionnaire to determine the entire antioxidants of the usual diet in order to calculate dietary TAC. Semen quality was assessed according to World Health Organization 2010 guidelines. The association between dietary TAC and semen parameters were assessed adjusting for potential confounders through multiple logistic regression analysis. Main results and the role of chance The average age of study participants was 34.9 ± 7.6 years and their BMI was 28.5 ± 4.3 kg/m2. Participants in the lower tertile of the dietary TAC were lower educated (p < 0.01), more physically active (p < 0.05), and predominantly had abnormal sperm progressive motility (p < 0.01). In the multivariable adjusted models, men in the lowest tertile of the dietary TAC Score had 2.9 times higher likelihood of having abnormal sperm motility, total sperm count and concentration, compared to men in the highest tertile of the TAC score (p < 0.05). Limitations, reasons for caution The main limitation of our study was its cross-sectional design, limiting our ability to derive causal association. Wider implications of the findings: Our study suggests that dietary pattern comprising mainly of antioxidant nutrients may help improve semen quality. Our results are consistent with previous studies showing that plant-based diet contains higher levels of antioxidants are associated with better measures of semen quality. Trial registration number Not applicable

Effect of parity on changes in udder traits, milk yield and composition of West African dwarf sheep during lactation

2017 ◽  
Vol 57 (6) ◽  
pp. 1047 ◽  
Author(s):  
E. O. Adegoke ◽  
N. S. Machebe ◽  
A. G. Ezekwe ◽  
O. B. Agaviezor
Keyword(s):  
Milk Yield ◽  
Significant Role ◽  
Total Solid ◽  
Milk Composition ◽  
West African ◽  
West African Dwarf ◽  
Lactation Length ◽  
Length Width ◽  
West African Dwarf Sheep ◽  
Dwarf Sheep

Twelve West African Dwarf sheep, comprising four ewes in each of the Parities 1, 2 and 3, were used to determine the effect of parity on udder traits during lactation, milk yield and composition. Udder length, udder width, udder circumference, udder volume, teat length, teat width, teat circumference, distance between the teats and teat height from the ground of sheep were measured in centimetres (cm) weekly for 12 weeks of lactation, commencing from Day 4 postpartum. Parity highly influenced (P < 0.05) udder traits, except udder volume (P > 0.05). The udder length, width and circumference were higher (P < 0.05) in Parity-3 ewes than Parity-1 and -2 ewes. A similar trend was shown for teat length, width and circumference. Parity had no effect (P > 0.05) on udder volume, but significantly (P > 0.05) affected distance between the teats and teat height from the ground. With the exception of udder volume, all traits peaked by the 3rd week of lactation, and gradually declined thereafter. Milk yield and milk weight peaked by the 3rd week postpartum and these were higher for ewes in Parity 3. Milk yield and milk weight declined faster in ewes in Parities 1 and 2 than they did in Parity-3 ewes (P < 0.05) as lactation length increased. In regard to milk composition, moisture, protein and fat, but not total solid, solid-not-fat and lactose, were greater (P < 0.05) in Parity-3 ewes both at peak milk yield (3rd week of lactation) and end of lactation. From these findings, we conclude that parity type plays a significant role in influencing udder traits, milk yield and milk quality in ewes.

scholarly journals Role of Dietary Antioxidants and Vitamins Intake in Semen Quality Parameters: A Cross-sectional Study

2020 ◽  
Author(s):  
Reza Ghiasvand ◽  
Laleh Dehghan Marvast ◽  
Mehran Nouri ◽  
Aida Jahanbakhsh ◽  
farahnaz haeri
Keyword(s):  
Dietary Intake ◽  
Semen Quality ◽  
Sperm Count ◽  
Cross Sectional Study ◽  
Quality Parameters ◽  
Dietary Antioxidants ◽  
Cross Sectional ◽  
Infertile Men ◽  
Semen Volume

Abstract Objective Infertility had an increasing trend between couples in Iran. Several factors such as lifestyle, physical activity, unhealthy dietary habits and stress are associated with production of ROS in seminal fluid. The aim of this study was to identify the role of dietary antioxidants and vitamins intake on semen quality parameters, among Iranian infertile men. Methods This cross-sectional study was performed on 400 newly diagnosed infertile men in Yazd Reproductive sciences Institute from July 2019 to December 2019. The presence of infertility was confirmed by an expert andrologist, based on WHO criteria. Dietary antioxidants and vitamins intake were assessed using a 168 items semi-quantitative food frequency questionnaire (FFQ). Results We found an association between semen volume and Alpha Carotene dietary intake, total motility and Beta Cryptoxanthin dietary intake, and sperm count with riboflavin intake (P = 0.03). Conclusions We concluded that dietary intake of Alpha Carotene, Beta Cryptoxanthin, and Riboflavin are related to sperm count, semen volume and total motility in Iranian infertile men, respectively. Our data suggest that that adhering to a diet that is rich in sources of antioxidant and vitamin can have a positive effect on men’s sexual health. However, more research is needed to confirm these relations and provide the evidence needed to exert these findings into clinical practice.

scholarly journals Higher adherence to Mediterranean Diet is associated with improved semen parameters: A systematic review and meta-analysis of observational studies

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Jakub Morze ◽  
Anna Danielewicz ◽  
Katarzyna Przybylowicz
Keyword(s):  
Mediterranean Diet ◽  
Observational Studies ◽  
Semen Quality ◽  
Sperm Count ◽  
Meta Analysis ◽  
Quality Parameters ◽  
Semen Parameters ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Mean Differences

AbstractSemen quality is a key indicator of male fecundity and therefore is closely related to male fertility. In recent decades a significant decrease of semen parameters was observed worldwide. Except for environmental pollution, low physical activity, body weight and comorbidities, unhealthy diet was linked to semen quality decline. Mediterranean Diet (MedDiet) due to its anti-oxidative and anti-inflammatory properties, is considered as beneficial for semen. However, results of existing studies are inconclusive. The aim of this review was to pool associations between adherence to the MedDiet and semen quality parameters in observational studies. Electronic databases including PubMed, Embase and Scopus were searched until April 2019 with no restriction to language or time. Studies were eligible for inclusion if they filled following criteria: (1) observational design (retrospective or prospective), (2) adherence to MedDiet assessed using score or data-driven method and (3) semen quality parameters (total motility, progressive motility, total count, concentration or volume) as outcomes. Mean differences or odds ratios of abnormal semen parameters between the highest and lowest quintiles of MedDiet were converted to standardized mean differences (SMD). Random effects models with inverse variance method were used to pool differences. Heterogeneity was assessed using the Cochrane Q test and I2 statistic with value > 50% indicating substantial heterogeneity. Five cross-sectional studies extracted from 840 articles, met the eligibility criteria and were included in the meta-analysis. Higher adherence to MedDiet compared to lower adherence was associated with increased total (SMD = 0.59 95%CI: 0.12–1.06, I2 = 80%, pheterogenity < 0.01, n = 4) and progressive (SMD = 0.53 95%CI: 0.16–0.91, I2 = 0%, pheterogenity = 0.94, n = 2) sperm motility. No associations were observed between adherence to MedDiet and total sperm count (SMD = 0.14 95%CI: -0.20–0.48, I2 = 70%, pheterogenity < 0.01, n = 5), concentration (SMD = 0.22 95%CI: -0.04–0.47, I2 = 48%, pheterogenity = 0.10, n = 5), volume (SMD = 0.02 95%CI: -0.20–0.25, I2 = 21%, pheterogenity = 0.28, n = 5), as well as morphology (SMD = -0.10 95%CI: -0.36–0.16, I2 = 38%, pheterogenity = 0.18, n = 4). The results suggest that higher adherence to the MedDiet may have a protective effect on semen quality, probably by increased intake of antioxidant-rich products. Limitations of findings include substantial between-study heterogeneity and use of cross-sectional design. Beneficial effects of the MedDiet on semen quality have to be confirmed in further prospective studies.

scholarly journals Dietary Patterns and Poor Semen Quality Risk in Men: A Cross-Sectional Study

Nutrients ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1162 ◽  
Author(s):  
Anna Danielewicz ◽  
Katarzyna Przybyłowicz ◽  
Mariusz Przybyłowicz
Keyword(s):  
Dietary Patterns ◽  
Semen Quality ◽  
Sperm Quality ◽  
Cross Sectional Study ◽  
Quality Parameters ◽  
Semen Parameters ◽  
Sectional Study ◽  
Cross Sectional ◽  
Progressive Motility ◽  
Increased Risk

The etiology of diminished sperm quality in about 30% of male infertility cases generally remains unexplained. Some studies have suggested that specific nutritional factors can affect semen quality. The aim of this study was to evaluate an association between dietary patterns (DPs) and the risk of abnormal semen quality parameters in men. This cross-sectional study was carried out in 114 men aged 20–55 years from Poland. Semen parameters were assessed via computer-aided semen. Diet was assessed by a food frequency questionnaire (FFQ). DPs were derived using Principal Component Analysis (PCA). Two DPs were derived: Pro-healthy and Western. After adjusting for potential confounders, the risk of abnormal progressive motility was significantly higher in the middle (OR: 2.89, 95% CI: 1.03–8.09) and upper (OR: 7.78, 95% CI: 1.52–15.06) tertiles of the Western DP. A trend for increased risk of the abnormal total count, progressive motility, and morphology (P-trend < 0.050) was found in Western DP. To conclude, the Western DP may increase the risk of abnormal semen parameters, whereas no association was found in the case of Pro-healthy DP. These findings stand in contrast to an increasing number of research findings indicating a positive relation between intake of healthy foods or diet and semen quality parameters. The results highlight the need to study whether modifications in diet and lifestyle factors improve semen quality.

scholarly journals Effect of Cigarette Smoking on Semen Quality Parameters in Male Partners of Infertile Couple: A Cross Sectional Study

2016 ◽  
Vol 15 (09) ◽  
pp. 112-116 ◽  
Author(s):  
Shriniwas S Chitta ◽  
Mohan K Tambe ◽  
Piyush M Kherde ◽  
Sumit S Aggarwal ◽  
Prerna D Nandedkar ◽  
...  
Keyword(s):  
Cigarette Smoking ◽  
Semen Quality ◽  
Cross Sectional Study ◽  
Quality Parameters ◽  
Infertile Couple ◽  
Male Partners ◽  
Sectional Study ◽  
Cross Sectional

scholarly journals Testicle size as indicator of fertility in bulls

2014 ◽  
Vol 68 (5-6) ◽  
pp. 311-322
Author(s):  
Igor Prka ◽  
Branislava Djordjevic
Keyword(s):  
Artificial Insemination ◽  
Semen Quality ◽  
Sperm Quality ◽  
Quality Parameters ◽  
Sperm Production ◽  
Production Potential ◽  
Holstein Friesian ◽  
Selection For ◽  
One Year

Male calves from the high value parents, bull fathers and bull dams, enter the selection for artificial insemination. After laboratory tests, the calves are taken to the center for artificial insemination, and after a stay in quarantine the are moved to a test station. At the age of twelve months they are measured for assessing the value of each calf exterior. One of the measures recorded was the testicle scope. On the basis of testicle size, it is possible to predict sperm production potential. For the determination of testicle size (testicular biometry), tapes or rulers were used. The aim of this work was to investigate the possible effect of testicle size on sperm production in young bulls used for artificial insemination. For that purpose there were used the data on circumference of testicles of one year old bulls just starting production of sperm, and then compared with certain semen quality parameters such as: volume of ejaculate and concentration and percentage of alive and progressively mobile spermatozoa. The investigation included all young bulls that started production in the period from 2010. to 2012., that is 36 bulls of various breeds (Simmental, Holstein Friesian, Montafon). After the testicle scope measuring in these bulls, there were observed the parameters of the sperm quality during the following one year period. The obtained results showed that the increased testicle size was followed by the increased average ejaculate quantity, in other words: 3.7 ml in group of bulls with testicle circumference below 30 cm, to 6.7 ml in bulls whose testicle circumference was over 40 cm. Also, the results showed that there was a correlation between the increased testicle size and the increased spermatozoa concentration. The values grow to testicle scope of 36 cm, and above that they were still high but with some oscillations. When it came to relation between testicle scope and the percentage of alive and progressively mobile spermatozoa, the trend line showed their positive correlation. The percentage of rejected ejaculates varied from 72% in bulls wit testicle scope below 30 cm to 10% in bulls with testicle scope above 35 cm. On the basis of the results obtained in this work, the conclusion is that testicle size is an indicator of bull fertility; that there is a significant correlation between testicle size and ejaculate volume, and that there is a need to explore a genetic link between testicle size and the fertility of their daughters.

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