NDLI: Capacitation status of stored boar spermatozoa is related to litter size of sows.

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Capacitation status of stored boar spermatozoa is related to litter size of sows.

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Capacitation status of stored boar spermatozoa is related to litter size of sows.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Oh, S. A. Park, Y. J. You, Y. A. Mohamed, E. A. Pang, M. G.
Description	Author Affiliation: Oh SA ( Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Ansung, Gyeonggi-Do, Republic of Korea.)
Abstract	Semen parameters can be considered useful predictors of sperm fertility. The objective of this study was to address the question of whether differences in in vivo fertility after the use of different ejaculates could be predicted using sperm kinematics, capacitation status, and sperm penetration ability under commercial pig production conditions. The percentage of capacitated sperm, as assessed by chlortetracycline (CTC) staining, was positively correlated with litter size (p<0.01). Our data suggest that litter size increases in proportion to the number of capacitated spermatozoa. When all semen parameters (kinematics, sperm capacitation status, and sperm penetration ability) and litter size were included in a multiple linear regression analysis, significant associations were found between the percentage of capacitated sperm (B-type), the sperm fertility index as assessed by a sperm penetration assay (SPA), and litter size. This relationship between capacitated sperm and litter size, however, was more predictive for smaller litter groups than larger ones. We found that the percentage of B-type sperm was significantly correlated with historic average litter size. However, there was no significant correlation between the percentage of B-type sperm and historic farrowing rates. To determine the normal range for B-type sperm, the lower limits were established as 30% for small litters (<8 piglets) and 35% for large litters. The overall accuracy of the assay was 92% and 83% for small and large litters, respectively. These results indicate that capacitation status as measured by CTC staining is a useful predictor of sperm fertility, equivalent to SPA. Moreover, original capacitation status exhibited better predictive ability for small litters than for large ones. Therefore, subfertile boars can be identified primarily by capacitation status.
File Format	HTM / HTML
ISSN	03784320
Issue Number	1-2
Volume Number	121
e-ISSN	18732232
Journal	Animal Reproduction Science
Language	English
Publisher	Elsevier
Publisher Date	2010-08-01
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Animal science Discipline Reproductive Medicine Discipline Veterinary Medicine Discipline Zoology Litter Size Physiology Semen Preservation Sperm Capacitation Swine Animals Cricetinae Female Fertility Fertilization In Vitro Veterinary Male Models, Theoretical Pregnancy Semen Adverse Effects Evaluation Studies Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Medicine Animal Science and Zoology Endocrinology Food Animals

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Fertility after post-cervical artificial insemination with cryopreserved sperm from boar ejaculates of good and poor freezability.

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Capacitation status of stored boar spermatozoa is related to litter size of sows.

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Capacitation status of stored boar spermatozoa is related to litter size of sows.