Effects of different dietary n-6/n-3 polyunsaturated fatty acid ratios on boar reproduction

Lin, Yan; Cheng, Xu; Mao, Jiude; Wu, De; Ren, Bo; Xu, Shengyu; Fang, Zhengfeng; Che, Lianqiang; Wu, Caimei; Li, Jian

doi:10.1186/s12944-016-0193-8

Cited by 25 publications

(27 citation statements)

References 48 publications

(66 reference statements)

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“…Various researchers have used different periods of supplementation with PUFAs, such as 60 days (stallions), 16 weeks (boars), 30 weeks (stallions) and 174 days (boars) (Freitas et al, ; Lin et al, ; Liu et al, ; Rodrigues et al, ). We believe our experiment is the first assessing the possible alterations at 60 days after the end of treatment.…”

Section: Discussionmentioning

confidence: 99%

Residual effect after salmon oil supplementation on semen quality and serum levels of testosterone in dogs

Santos

Milani

Zucchini

et al. 2019

Reprod Domestic Animals

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The objective of present study was to evaluate the effects of oral supplementation of salmon oil on seminal parameters and testosterone serum levels in dogs, following also the residual effects for 60 days after treatment. Nine healthy male dogs with proven fertility, weighing between 10 and 36 kg, ageing from 2 to 11 years, of different breeds, fed diets supplemented with salmon oil at the manufacturer's recommended dosage. The parameters measured were sperm volume, motility, vigour, normal morphology and concentration, live/dead ratio, membrane viability by means of HOST test and serum testosterone levels. Evaluations occurred at baseline (D0), after 90 days of supplementation (D90) and at the end of the experiment, 60 days after supplementation cessation (D150). Results (mean ± SD) obtained at time D0, D90 and D150 were as follows: motility of 76.66% ± 13.7, 92.77 ± 4.41 and 93.0 ± 7.90 (p = .001); normal spermatozoa of 69.11% ± 24.90, 90.00% ± 5.15 and 80.66 ± 16.04 (p = .05); live/dead (%) from 64.44 ± 22.86 to 85.33 ± 8.41 (p = .001); and spermatozoa (%) with integral membrane in the membrane integrity (HOST) test ranging from 76.44 ± 20.74 to 91.22 ± 4.68 (p = .05). Serum levels of testosterone (ng/ml) increased from 5.50 ± 1.13 to 8.84 ± 1.13 at D90 (p = .003) and decreased after 2 months (D150) to 5.13 ± 1.13. In conclusion, a 90‐day supplementation with salmon oil had a positive influence on semen quality and serum testosterone levels. The supplementation of omegas 3 and 6 at the ratio of 10:1 for 90 days determined an increase in concentration and motility of the sperm, and these effects were maintained for 60 days, with the only exception of testosterone levels.

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Section: Discussionmentioning

confidence: 99%

Residual effect after salmon oil supplementation on semen quality and serum levels of testosterone in dogs

Santos

Milani

Zucchini

et al. 2019

Reprod Domestic Animals

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“…35,36 However, other experiments supplementing boar diets with PUFAs ω-3 and ω-6 improved the quality of seminal characteristics, modifying the fatty acid composition of the sperm. 1,6,7 Although seminal characteristics were not affected by CLA intake during the experimental period, the increase in sperm concentration and viability and the decrease in abnormal morphology may be related to seasonal changes in temperature. Previous studies performed in colder months suggested that during the cooler months of the year, sperm count and semen production improved, 37 and sperm abnormalities were fewer in pigs housed in cool temperatures.…”

Section: Original Researchmentioning

confidence: 92%

“…5 Specifically, pigs are effective in transferring fatty acids from the diet to the germ cells. 6,7 Previous studies found that the fatty acid composition of sperm was modified with PUFAs supplementation 6,8,36 , suggesting that PUFAs supplementation changes the lipid composition of the semen of boars. However, our results were contrary to these findings, and these differences may be due to the breeds used in the experiments.…”

Section: Fatty Acid Profile In Sperm Cellsmentioning

confidence: 99%

“…1 Other studies suggested that supplementing the diet with oil rich in ω-3 and ω-6 modified the fatty acid composition of the sperm plasma membrane, increased the number of sperm cells in boar ejaculate, decreased the percentage of spermatozoa with abnormal morphologies, and altered some characteristics of their sexual behaviour. 7,8 Conjugated linoleic acids (CLAs) are PUFAs that are positional and geometric isomers of linoleic acid (C18:2), which are related to various health-giving properties for animals. In synthetic CLA preparations, the most biologically active and abundant isomers are cis-9, trans-11, 9 and trans-10, and cis-12.…”

Section: Introductionmentioning

confidence: 99%

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Conjugated linoleic acid supplementation does not improve boar semen quality and does not change its fatty acid profile

et al. 2017

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The aim of this study was to evaluate the effects of adding conjugated linoleic acid (CLA) to boar diets on semen production and characteristics, the fatty acid profile of spermatozoa, and on testicle and boar carcass parameters. Ten lean-type terminal-line (Yorkshire × Landrace × Pietrain) adult boars were randomly assigned to one of two treatments: (1) a control diet and (2) the same diet with 1 % CLA. The research was conducted in Mexico, and animals were exposed to ambient temperatures between 13.5 and 26.3 °C. Boars were ejaculated twice per week during a 12-week period to examine semen production and characteristics. The results suggest that supplementation of boar diets with CLA did not affect the spermatozoa fatty acid profile, semen volume, sperm concentration, viability, or motility, nor did it cause abnormal sperm morphology. Compared to controls, boars fed a CLA diet had a higher seminal pH and increased backfat thickness. In summary, this study indicates that CLA addition in boar diet does not change the semen characteristics or fatty acid profile of spermatozoa; however, it increases backfat thickness in sexually mature boars.Keywords: Semen quality; Backfat thickness; Testicular characteristics. IntroductionSemen quality, including ejaculate volume, sperm concentration, and percentages of sperm mortality and abnormality, determines the economic value of boars. 1 Polyunsaturated fatty acids (PUFAs), mainly ω-3 and ω-6 acids, are abundant in the plasma membrane of boar spermatozoa 2 and provide the sperm plasma mem- Conjugated Cite this as:Zamora-Zamora V, Figueroa-Velasco JL, Cordero-Mora JL, Nieto-Aquino R, García-Contreras AC, Sánchez-Torres MT, Carrillo-Domínguez S, Martínez-Aispuro JA. Conjugated linoleic acid supplementation does not improve boar semen quality and does not change its fatty acid profile. Veterinaria México OA. 2017;4(3).

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“…Oils that are rich in n-3 PUFAs also significantly increased sperm density and sperm number [57] . Lin et al [58] determined the effects of different dietary n-6/n-3 ratios on the reproductive performance of breeding boars and found that proper n-6/n-3 PUFAs ratio in the diet of breeding boars enhanced the development of testis and accessory sex gland function, and improved sperm quality, which may be related to favorable hormone metabolism and antioxidant capacity.…”

Section: Boar Nutritionmentioning

confidence: 99%

Çoklu Doymamış Yağ Asitleri ve Hayvansal Üretim Arasındaki İlişki: Derleme

Tang¹,

Guo²,

Wang³

et al. 2019

Kafkas Univ Vet Fak Derg

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Polyunsaturated fatty acids (PUFAs) play important roles in maintaining normal physiological conditions and, consequently, in animal health. Two PUFAs families, n-6 and n-3 fatty acids (FAs), are physiologically and metabolically distinct. The focus on PUFAs has been gradually extended from the apparent properties of growth performance, antioxidant ability and immune function to the mechanism of molecular regulation and mechanism such as regulating the expression of related genes and the anticancer action mechanism, which strengthen the understanding of the theoretical basis and application of animal husbandry in a range of animal species. The present review focuses on current knowledge related to the origin, biological function and practical application of PUFAs in animal production. Çoklu Doymamış Yağ Asitleri ve Hayvansal Üretim Arasındaki İlişki: DerlemeÖz Çoklu doymamış yağ asitleri normal fizyolojik süreçlerin ve bunun sonucu olarak da hayvan sağlığının sağlanmasında önemli rol oynamaktadır. İki çoklu doymamış yağ asitleri ailesi olan n-6 ve n-3 yağ asitleri fizyolojik ve metabolik olarak önemlidir. Büyüme performansı, antioksidan kabiliyeti ve immun fonksiyonlarından moleküler regülasyon ve ilgili genlerin ekspresyonunun ve anti kanser mekanizmaları gibi mekanizmalardaki belirgin özellikleri nedeniyle çoklu doymamış yağ asitlerine ilgi artmıştır. Bu durum pek çok hayvan türünde yetiştiricilik konusunda teorik temellerin anlaşılmasına katkıda bulunmuştur. Bu derleme, çoklu doymamış yağ asitlerinin hayvansal üretimdeki yeri, biyolojik fonksiyonları ve pratik uygulamaları üzerine güncel bilgiye odaklanmıştır.

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Effects of different dietary n-6/n-3 polyunsaturated fatty acid ratios on boar reproduction

Cited by 25 publications

References 48 publications

Residual effect after salmon oil supplementation on semen quality and serum levels of testosterone in dogs

Residual effect after salmon oil supplementation on semen quality and serum levels of testosterone in dogs

Conjugated linoleic acid supplementation does not improve boar semen quality and does not change its fatty acid profile

Çoklu Doymamış Yağ Asitleri ve Hayvansal Üretim Arasındaki İlişki: Derleme

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