Factors influencingsemen quality in pigs

Colenbrander, B.; Kemp, Brigina

doi:10.1530/biosciprocs.13.008

Cited by 3 publications

(4 citation statements)

References 17 publications

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“…The number of sperm in the insemination dose is an important factor affecting the probability that a female will become pregnant after AI, and in litter-bearing animals, also, the litter size [51]. To maximize pregnancy rate, the number of sperm in a dose is intentionally set high, but this management approach tends to obscure differences among males that might impact outcome of breeding when fewer sperm are used [33,[52][53][54][55][56]. Certain males achieve maximum fertility after AI with very few motile sperm (1 million for cattle), whereas for other males 20-30x more motile sperm are required to maximize fertility [51,57,58].…”

Section: The Insemination Dosementioning

confidence: 99%

“…Data for cattle are most comprehensive, but it would be erroneous to assume that this principle, which results from so called "compensable defects" of sperm [50], is not operational in other species. Actually, it has been stated by several authors that, insemination trials with reduced sperm numbers are needed to reveal sub-fertile males and/or to detect differences between males [33,33,52,56,59,60].…”

Section: The Insemination Dosementioning

confidence: 99%

See 1 more Smart Citation

The Use of Artificial Insemination (AI) Technology in Improving Milk, Beef and Reproductive Efficiency in Tropical Africa: A Review

HI¹

2018

JDVS

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Section: The Insemination Dosementioning

confidence: 99%

Section: The Insemination Dosementioning

confidence: 99%

The Use of Artificial Insemination (AI) Technology in Improving Milk, Beef and Reproductive Efficiency in Tropical Africa: A Review

HI¹

2018

JDVS

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“…Among them, boar age, health and stress status, season and environmental conditions and the frequency of semen collection significantly influence boar semen quality [ 1 , 2 ]. It is notable that boar semen composition shows 25–30% changes during the year period [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

The Use of Animal’s Body, Scrotal Temperature and Motion Monitoring in Evaluating Boar Semen Production Capacity

Stravogianni

Samaras

Boscos

et al. 2022

Animals

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Biomedical measurements by specialized technological equipment have been used in farm animals to collect information about nutrition, behavior and welfare. This study investigates the relation of semen quality (CASA analysis, viability, morphology, membrane biochemical activity and DNA fragmentation) with boar behavior during ejaculation. Sensors were placed on the boar’s body. Movement features were collected using an inertial measurement unit (IMU), comprising an accelerometer, a gyroscope and a magnetometer. Boar, scrotal and dummy temperatures were measured by an infrared (IR) camera and an IR thermometer, while the face salivation of the boar was recorded by a moisture meter (also based on IR technology). All signals and images were logged on a mobile device (smartphone or tablet) using a Bluetooth connection and then transferred wirelessly to the cloud. The data files were then processed using scripts in MATLAB 2021a (MathWorks, Natick, Massachusetts) to derive the necessary indices. Ninety-four ejaculates from five boars were analyzed in this study. The statistical analysis was performed in the Statistics and Machine Learning Toolbox of MATLAB 2021a using a linear mixed effects model. Significant and strong negative correlations (R2 > 0.5, p ≤ 0.05) were observed between boar, dummy and scrotal temperature with the progressive, rapid and slow movement of spermatozoa, VCL (curvilinear velocity), VSL (straight line velocity) and ALH (amplitude of lateral head displacement) kinematics. The volume of the ejaculate was correlated with the scrotal and dummy temperature. Dummy’s temperature was negatively correlated with BCF (beat/cross-frequency), viability and total time of ejaculation, while it was positively correlated with abnormal morphology. Body temperature was negatively correlated with BCF. Positive correlations were noticed between VAP (average path velocity) and total time of ejaculation with body acceleration features, as well as between the overall dynamic body acceleration (ODBA) and total time of ejaculation. In conclusion, the use of biomedical sensors can support the evaluation of boar sperm production capacity, providing valuable information about semen quality.

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“…Therefore, the physiological parameters of breeding boars' ejaculates are taken into account in the sampling points of [3]. Numerous studies have shown that the quality and volume of boar ejaculate depends on the breed [4,5], age [6][7][8], testicle size [9][10][11], season [12][13][14][15] and seasonal duration of daylight. [16], microclimatic conditions and feeding [17] under intensive use or vice versa with an interval of semen collection every 2 months [5,8,18].…”

Section: Introductionmentioning

confidence: 99%

Вплив Гумінової Сполуки На Якість Спермопродукції Кнурів-Плідників За Різних Режимів Використання

Павлова¹

2022

Журнал АВП

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В дослідженнях встановлений вплив режимів використання кнурів-плідників Червоно-білопоясої м’ясної породи на якість спермопродукції за дії біологічно активної кормової добавки «Гумілід». Отриманні данні у контрольній групі кнурів-плідників пояснюються інтенсивним їх використання та значною витратою ресурсів організму на підтримання статевої діяльності. Завдяки адаптогенним властивостям препарату, який позитивно впливав на показники якості спермопродукції в дослідній групі тварин вже на 30-ту добу експерименту були мобілізовані ресурси організму. Встановлено, що вживання тваринами біологічно та екологічно безпечної кормової добавки гумінової природи дає змогу при різних режимах використання кнурів-плідників отримувати якісну та повноцінну спермопродукцію. Показники рухливості та виживаності сперміїв були найвищими у тварин, які отримували біологічно активну кормову добавку «Гумілід» і мали статеве навантаження два рази на тиждень. Рухливість сперміїв в підготовчий період у контрольній групі склала 90,4% та в дослідній 95,0%, виживаність 84,0% і 90,8%, відповідно. В період основного етапу експерименту рухливість сперміїв була в межах 85,9% та 98,8% і виживаність 78,5% та 95,3%, відповідно. Тоді, як на завершальному етапі рухливість сперміїв склала 89,6% та 92,0% і виживаність 82,0% і 88,9%, відповідно.

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Factors influencingsemen quality in pigs

Cited by 3 publications

References 17 publications

The Use of Artificial Insemination (AI) Technology in Improving Milk, Beef and Reproductive Efficiency in Tropical Africa: A Review

The Use of Artificial Insemination (AI) Technology in Improving Milk, Beef and Reproductive Efficiency in Tropical Africa: A Review

The Use of Animal’s Body, Scrotal Temperature and Motion Monitoring in Evaluating Boar Semen Production Capacity

Вплив Гумінової Сполуки На Якість Спермопродукції Кнурів-Плідників За Різних Режимів Використання

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