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  • Dietary L-arginine supplementation improves semen quality and libido of boars under high ambient temperature.

    Author(s) : Chen, J. Q.Li, Y. S.Li, Z. J.Lu, H. X.Zhu, P. Q.Li, C. M.

    Author Affiliation : Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.

    Author Email : chunmeili@njau.edu.cn

    Journal article : Animal 2018 Vol.12 No.8 pp.1611-1620 ref.35

    Abstract : L-ArgininearginineSubject Category: Chemicals and Chemical Groups
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    is a nutritionally essential amino acid for spermatogenesisspermatogenesisSubject Category: Miscellaneous
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    and plays versatile roles in animal healthanimal healthSubject Category: Miscellaneous
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    and can be utilized as a potential agent to improve reproductive performancereproductive performanceSubject Category: Properties
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    of boarsboarsSubject Category: Organism Groups
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    under high ambient temperature. The present study aimed to determine whether dietary L-arginine could alleviate heat stress-induced infertility in boars. In all, 20 boars (PIC 1040; 248.59±3.84 kg BW and 407.65±6.40 days of age) were selected and randomly assigned to four groups (group 0.0%, basal diet; group 0.6%, 0.8% or 1.0%, basal diet added with 0.6%, 0.8% or 1.0% L-arginine (wt:wt), respectively.) The four dietsdietsSubject Category: Miscellaneous
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    were made isonitrogenous by addition of appropriate amounts of L-alanine. Boars were pre-fed the corresponding experimental diet for 42 days. Then, the semensemenSubject Category: Miscellaneous
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    characteristics and libido were accessed for 6 weeks during the hot summersummerSubject Category: Climate Related
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    summerSubject Category: Time Periods
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    period (25.5° to 33.0°C). Results show that dietary L-arginine remarkably improved sperm motility, normality, total sperm number and effective total sperm number. Also, dietary L-arginine improved semen antioxidant capacity, such as decrease of malondialdehyde and 8-Hydroxy-2′-deoxyguanosine content in sperm (P<0.05), increase of the ratio of glutathione and oxidized glutathione, total antioxidant capacity, glutathione peroxidaseglutathione peroxidaseSubject Category: Chemicals and Chemical Groups
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    and catalasecatalaseSubject Category: Chemicals and Chemical Groups
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    activities in seminal plasma (P<0.05). Most of mitochondriamitochondriaSubject Category: Anatomical and Morphological Structures
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    contained intact ultrastructureultrastructureSubject Category: Miscellaneous
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    in L-arginine-supplemented group which also accompany with higher ATP content than the 0.0% group. The boars fed 0.8% L-arginine show increased levels of estradiol-17β and testosteronetestosteroneSubject Category: Chemicals and Chemical Groups
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    and exhibit improved libido performance than boars in the 0.0% group. Adding dietary L-arginine linearly increased (P=0.002) nitric oxidenitric oxideSubject Category: Chemicals and Chemical Groups
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    content (as L-arginine increased). The scrotal surface temperature in the 0.6%, 0.8% and 1.0% group were decreased by 0.9°C, 0.9°C and 0.4°C, respectively, compared with the 0.0% group. L-Arginine levels caused linear effect on semen quality and antioxidant capacity, also caused quadratic effect on libido performance. During the hot summer months, the predicted optimal L-arginine levels for best semen quality and antioxidant capacity was 0.8% to 1.0% and for best libido performance was 0.8%. It can be concluded that L-arginine can be used as an effective agent to alleviate heat stress-induced infertility of boar, and that 0.8% to 1.0% can be considered as the optimum dosage.

    ISSN : 1751-7311

    DOI : 10.1017/s1751731117003147

    Record Number : 20183370703

    Publisher : Cambridge University Press

    Location of publication : Cambridge

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : pigspigsSubject Category: Organism Names
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    Descriptor(s) : amino acidsamino acidsSubject Category: Chemicals and Chemical Groups
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    , animal healthanimal healthSubject Category: Miscellaneous
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    , antioxidantsantioxidantsSubject Category: Chemicals and Chemical Groups
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    , argininearginineSubject Category: Chemicals and Chemical Groups
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    , biochemistrybiochemistrySubject Category: Disciplines, Occupations and Industries
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    , boarsboarsSubject Category: Organism Groups
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    , catalasecatalaseSubject Category: Chemicals and Chemical Groups
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    , dietsdietsSubject Category: Miscellaneous
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    , enzymesenzymesSubject Category: Chemicals and Chemical Groups
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    , essential amino acidsessential amino acidsSubject Category: Chemicals and Chemical Groups
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    , glutathioneglutathioneSubject Category: Chemicals and Chemical Groups
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    , glutathione peroxidaseglutathione peroxidaseSubject Category: Chemicals and Chemical Groups
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    , healthhealthSubject Category: Miscellaneous
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    , mitochondriamitochondriaSubject Category: Anatomical and Morphological Structures
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    , nitric oxidenitric oxideSubject Category: Chemicals and Chemical Groups
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    , peroxidaseperoxidaseSubject Category: Chemicals and Chemical Groups
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    , reproductive performancereproductive performanceSubject Category: Properties
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    , semensemenSubject Category: Miscellaneous
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    , sex hormonessex hormonesSubject Category: Chemicals and Chemical Groups
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    , spermatogenesisspermatogenesisSubject Category: Miscellaneous
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    , summersummerSubject Category: Time Periods
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    , testosteronetestosteroneSubject Category: Chemicals and Chemical Groups
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    , ultrastructureultrastructureSubject Category: Miscellaneous
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    Identifier(s) : hogs, swine

    Broader term(s) : Sus scrofasus scrofaSubject Category: Organism Names
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    , SussusSubject Category: Organism Names
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    , SuidaesuidaeSubject Category: Organism Names
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    , SuiformessuiformesSubject Category: Organism Names
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    , ArtiodactylaartiodactylaSubject Category: Organism Names
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    , mammalsmammalsSubject Category: Organism Names
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    , vertebratesvertebratesSubject Category: Organism Names
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    , ChordatachordataSubject Category: Organism Names
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    , animalsanimalsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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