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  • Oxford University Press (OUP)  (6)
  • Yu, Jie  (6)
  • 2015-2019  (6)
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  • Oxford University Press (OUP)  (6)
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  • 2015-2019  (6)
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  • 1
    Online Resource
    Online Resource
    15 Dietary supplementation with lactic acid and glutamine improve intestinal digestive and regulate intestinal microflora in weaning piglets
    Oxford University Press (OUP) ; 2019
    In:  Journal of Animal Science Vol. 97, No. Supplement_3 ( 2019-12-05), p. 16-16
    Details
    In: Journal of Animal Science, Oxford University Press (OUP), Vol. 97, No. Supplement_3 ( 2019-12-05), p. 16-16
    Abstract: This study aimed to evaluate the effects of dietary addition of lactic acid and glutamine on growth performance and intestinal health in weaning pigs. Ninety six 24-d-old piglets (Duroc × Landrace × Yorkshire) with BW of 7.24± 0.09 kg were randomly assigned to 1 of 4 dietary treatments: 1) basal diet (CON), 2) CON supplemented with 2% lactic acid (LS), 3) CON supplemented with 1% glutamine (GS), and 4) CON supplemented with 2% lactic acid and 1% glutamine (LGS). After 28-d trial, 6 piglets from each treatment were randomly selected to collect serum and intestinal samples. The results showed that piglets fed the LGS had a greater (P & lt; 0.05) ADG than piglets fed the CON diet. Compared with CON, apparent total tract digestibility of CP in LS, GS and LGS was greater (P & lt; 0.05), index of diarrhea in LS and LGS was lower (P & lt; 0.05), serum IGF-1 in LS, GS and LGS and serum growth hormone in LS and GS were improved (P & lt; 0.05). Furthermore, jejunal villus height in LS and LGS were increased (P & lt; 0.05), the activities of amylase and lipase of the jejunal mucosa in LS and LGS were increased (P & lt; 0.05). In addition, compared with CON, pigs fed the LS, GS and LGS up-regulated (P & lt; 0.05) the mRNA levels of glucose transport type 2, IGF-1, occludin. Moreover, LGS had higher (P & lt; 0.05) abundances of total bacteria, Lactobacillus and Bifidobacterium in cecal and colonic digesta, and higher concentrations of total volatile fatty acid in cecal digesta. Collectively, the current results indicate that dietary addition of lactic acid and glutamine combination could improve growth performance through the promotion of the small intestinal development, increasing digestive, and regulating balances of microflora in piglets.
    Type of Medium: Online Resource
    ISSN: 0021-8812 , 1525-3163
    URL: Article
    DOI: 10.1093/jas/skz258.032
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1490550-4
    SSG: 12
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Improvement of growth performance and parameters of intestinal function in liquid fed early weanling pigs1
    Oxford University Press (OUP) ; 2019
    In:  Journal of Animal Science Vol. 97, No. 7 ( 2019-07-02), p. 2725-2738
    Details
    In: Journal of Animal Science, Oxford University Press (OUP), Vol. 97, No. 7 ( 2019-07-02), p. 2725-2738
    Abstract: Liquid feeding, a widely used technique, has been applied as a feeding technique commonly in global swine production. The objective of this study was to evaluate the effects of liquid feeding on growth performance, nutrient digestibility, and intestinal barrier functions during the early weaning period in pigs. Three hundred and sixty 24-d-old weanling pigs (Duroc × Landrace × Yorkshire) with BW of 6.98 ± 0.15 kg were randomly assigned to a control diet (dry fed basal diet, CON) or as meal mixed with water in the ratio 1:4 (liquid fed basal diet, LF) with 6 replicates per treatment and 30 weanling pigs per replicate. The study lasted 7 d. On days 4 to 7, fresh fecal samples were collected to evaluate apparent total tract digestibility (ATTD) of nutrients. After 7 d, 2 weanling pigs per pen were euthanized and physiological samples were obtained. Results showed that LF increased (P 〈 0.05) ADG (281 g vs. 183 g), ADFI (374 g vs. 245 g), and final BW (8.95 kg vs. 8.26 kg) compared with CON. Compared with CON, LF significantly decreased (P 〈 0.05) serum cortisol and d-lactate concentrations as well as the activity of diamine oxidase, enhanced (P 〈 0.05) the ATTD of ether extract and ash, increased (P 〈 0.05) the activities of amylase, lipase, and lactase in the jejunal mucosa. Furthermore, LF had higher (P 〈 0.05) villus height and villi height:crypt depth and increased (P 〈 0.05) mRNA expressions of insulin-like growth factors-1 receptor (IGF-1R), claudin-2 (CLDN-2), zonula occludens-1 (ZO-1), and zonula occludens-2 (ZO-2) in the jejunum. Moreover, LF had lower (P 〈 0.05) abundances of total bacteria and Escherichia coli and higher (P 〈 0.05) concentrations of acetic acid and butyric acid in cecal digesta. Altogether, the results indicated that liquid feeding not only promoted growth performance but also improved intestinal health by enhancing gut barrier functions in weanling pigs.
    Type of Medium: Online Resource
    ISSN: 0021-8812 , 1525-3163
    URL: Article
    DOI: 10.1093/jas/skz134
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1490550-4
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Butyrate promotes slow-twitch myofiber formation and mitochondrial biogenesis in finishing pigs via inducing specific microRNAs and PGC-1α expression1
    Oxford University Press (OUP) ; 2019
    In:  Journal of Animal Science Vol. 97, No. 8 ( 2019-07-30), p. 3180-3192
    Details
    In: Journal of Animal Science, Oxford University Press (OUP), Vol. 97, No. 8 ( 2019-07-30), p. 3180-3192
    Abstract: The present study aimed to investigate the influence of dietary butyrate supplementation on muscle fiber-type composition and mitochondrial biogenesis of finishing pigs, and the underlying mechanisms. Thirty-two LY (Landrace × Yorkshire) growing pigs with BW of 64.9 ± 5.7 kg were randomly allotted to either control (basal diet) or butyrate diets (0.3% butyrate sodium). Compared with the control group, diet supplemented with butyrate tended to increase average daily gain (P 〈 0.10). Pigs fed butyrate diet had higher intramuscular fat content, marbling score and pH24 h, and lower shear force and L*24 h in longissimus thoracis (LT) muscle than that fed control diet (P 〈 0.05). Interestingly, supplemented with butyrate increased (P 〈 0.05) the mRNA level of myosin heavy chain I (MyHC-I) and the percentage of slow-fibers, and decreased (P 〈 0.05) the mRNA level of MyHC-IIb in LT muscle. Meanwhile, pigs in butyrate group had an increase in mitochondrial DNA (mtDNA) copy number and the mRNA levels of mtDNA-encoded genes (P 〈 0.05). Moreover, feeding butyrate diet increased PGC-1α (PPAR γ coactivator 1α) level, decreased miR-133a-3p level and increased its target gene level (TEAD1, TEA domain transcription factor 1), increased miR-208b and miR-499-5p levels and decreased their target genes levels (Sp3 and Sox6, specificity protein 3 and SRY-box containing gene 6; P 〈 0.05) in the LT muscle. Collectively, these findings suggested that butyrate promoted slow-twitch myofiber formation and mitochondrial biogenesis, and the molecular mechanism may be via upgrading specific microRNAs and PGC-1α expression, finally improving meat quality.
    Type of Medium: Online Resource
    ISSN: 0021-8812 , 1525-3163
    URL: Article
    DOI: 10.1093/jas/skz187
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1490550-4
    SSG: 12
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  • 4
    Online Resource
    Online Resource
    Effects of Bacillus subtilis DSM32315 supplementation and dietary crude protein level on performance, gut barrier function and microbiota profile in weaned piglets1
    Oxford University Press (OUP) ; 2019
    In:  Journal of Animal Science Vol. 97, No. 5 ( 2019-04-29), p. 2125-2138
    Details
    In: Journal of Animal Science, Oxford University Press (OUP), Vol. 97, No. 5 ( 2019-04-29), p. 2125-2138
    Type of Medium: Online Resource
    ISSN: 0021-8812 , 1525-3163
    URL: Article
    DOI: 10.1093/jas/skz090
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1490550-4
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Mannan oligosaccharide supplementation in diets of sow and (or) their offspring improved immunity and regulated intestinal bacteria in piglet1
    Oxford University Press (OUP) ; 2019
    In:  Journal of Animal Science Vol. 97, No. 11 ( 2019-11-04), p. 4548-4556
    Details
    In: Journal of Animal Science, Oxford University Press (OUP), Vol. 97, No. 11 ( 2019-11-04), p. 4548-4556
    Abstract: The objectives of the current study were to explore the effects of mannan oligosaccharide (MOS) supplementation in the diets of sow and (or) their offspring on intestinal bacteria, intestinal and systemic inflammation in the piglet. A total of 60 multiparous sows (4 ± 1 parity; Landrace × Yorkshire) were fed either control diet (sCON, n = 30) or a diet containing 400 mg kg−1 MOS (sMOS, n = 30) from day 86 of gestation until weaning (day 20 of postpartum). On day 7 of age, offspring (Duroc × Landrace Yorkshire) were assigned within sow treatments and fed control diet (pCON) or diet containing 800 mg kg−1 MOS (pMOS) for 28 d (end at 35 d of age), resulting in four piglet diet groups (n = 15 litters per diet group): sCON-pCON, sCON-pMOS, sMOS-pCON, and sMOS-pMOS. Results found that piglet diet MOS increased or tend to increase Lactobacillus amount in the ileum digesta (P 〈 0.01) and jejunum digesta (P = 0.07), respectively; while tend to decrease Escherichia coli amount in jejunum digesta (P =0.06) and cecum digesta (P = 0.08). Both sow and piglet diets add MOS (sMOS-pMOS) increased Lactobacillus amount but decreased E. coli amount in jejunum digesta (P 〈 0.05) compared with the sCON-pCON diet group. In addition, sow diet MOS (rather than piglet diet MOS) increased sIgA content in piglet jejunum mucosa compared with control (P = 0.04). Sow diet MOS decreased toll-like receptor 2 (TLR2), toll-like receptor 4 (TLR4), and interleukin 8 (IL-8) mRNA levels (P 〈 0.05) and tended to decrease nuclear factor-κB p65 (NF-κB p65) mRNA level (P = 0.07) in piglet intestinal lymphatic. The interaction effects between sow and piglet diets were found on the mRNA levels of NF- κB p65 (P = 0.03) and IL-8 (P = 0.02) in piglet jejunum. Finally, the sow diet MOS decreased proinflammatory cytokines IL-2 (P 〈 0.01) and IL-4 (P 〈 0.01) concentrations in piglet serum. Piglets diet MOS decreased the contents of IL-2 (P = 0.03), IL-4 (P = 0.01) and interferon (IFN)-γ (P 〈 0.01) while increased anti-inflammatory cytokine IL-10 (P 〈 0.01) content in serum. The interaction effects between sows and piglet diets on IL-4 (P = 0.02), IL-10 (P 〈 0.01), and IFN-γ (P = 0.08) were observed. In conclusion, sow and/or piglet diet MOS could improve intestinal microbiota, enhance intestinal mucosal immune competence, and suppress intestinal and systemic inflammation in the piglet.
    Type of Medium: Online Resource
    ISSN: 0021-8812 , 1525-3163
    URL: Article
    DOI: 10.1093/jas/skz318
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1490550-4
    SSG: 12
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  • 6
    Online Resource
    Online Resource
    Long-term dietary resveratrol supplementation decreased serum lipids levels, improved intramuscular fat content, and changed the expression of several lipid metabolism-related miRNAs and genes in growing-finishing pigs1
    Oxford University Press (OUP) ; 2019
    In:  Journal of Animal Science Vol. 97, No. 4 ( 2019-04-03), p. 1745-1756
    Details
    In: Journal of Animal Science, Oxford University Press (OUP), Vol. 97, No. 4 ( 2019-04-03), p. 1745-1756
    Type of Medium: Online Resource
    ISSN: 0021-8812 , 1525-3163
    URL: Article
    DOI: 10.1093/jas/skz057
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1490550-4
    SSG: 12
    Location Call Number Limitation Availability
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    Online Resource
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