scholarly journals Role of milk carbohydrates in intestinal health of nursery pigs: a review

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Ki Beom Jang ◽  
Sung Woo Kim

AbstractIntestinal health is essential for the resistance to enteric diseases and for nutrient digestion and absorption to support growth. The intestine of nursery pigs are immature and vulnerable to external challenges, which cause negative impacts on the structure and function of the intestine. Among nutritional interventions, the benefits of milk are significant for the intestinal health of pigs. Milk coproducts have traditionally been used in starter feeds to improve the growth of nursery pigs, but their use is somewhat limited due to the high costs and potential risks of excessive lactose on the intestine. Thus, understanding a proper feeding level of milk carbohydrates is an important start of the feeding strategy. For nursery pigs, lactose is considered a highly digestible energy source compared with plant-based starch, whereas milk oligosaccharides are considered bioactive compounds modulating intestinal immunity and microbiota. Therefore, milk carbohydrates, mainly composed of lactose and oligosaccharides, have essential roles in the intestinal development and functions of nursery pigs. The proper feeding levels of lactose in starter feeds could be variable by weaning age, body weight, or genetic lines. Effects of lactose and milk oligosaccharides have been broadly studied in human health and animal production. Therefore, this review focuses on the mechanisms of lactose and milk oligosaccharides affecting intestinal maturation and functions through modulation of enterocyte proliferation, intestinal immunity, and intestinal microbiota of nursery pigs.

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 132-133
Author(s):  
S Bloomer ◽  
Y C Cheng ◽  
H M Yakout ◽  
S W Kim

Abstract The effects of encapsulated sodium butyrate (SB), phytogenics (PH), or a combination were studied on intestinal health of nursery pigs. Phytogenics were blends of dry herbs and essential oil components. Forty-eight weaned pigs (21-d-old; 6.9 ± 0.6 kg BW) were individually housed, blocked by initial BW and sex, allotted to 4 dietary treatments (n = 12) in a RCBD, and fed for 33-d (P1: 0–7; P2: 7–19; and P3: 19–33). Treatments were arranged by 2 factors: SB (P1: 0.2% and P2: 0.1%) and PH (P3: 0.033%). Diets were formulated to meet or exceed NRC (2012) nutrient requirements and pigs were fed ad libitum. For each phase, ADG, ADFI, and G:F were measured. Fecal scores were assessed during d 3–19 and d 26–33. Blood samples were drawn in P2 and P3 to measure tumor necrosis factor alpha (TNF-α), IL-6, and immunoglobulin G (IgG). Four pigs at P2 and 8 pigs in P3 from each treatment were euthanized to collect jejunal tissue, jejunal mucosa, and ileal digesta to measure gut histology, TNF-α, IL-6, myeloperoxidase (MPO), malondialdehyde (MDA), and protein carbonyl. Data were analyzed using PROC MIXED of SAS. Fixed effects were treatments and random effects were blocks. In P2 and P1-2, SB decreased (P < 0.05) ADFI whereas no effect on ADG and G:F. In P2, SB tended to decrease (P = 0.063) villus height to crypt depth ratio (VH:CD) whereas increased (P < 0.05) enterocyte proliferation in P3. In P3 and overall, PH increased (P < 0.05) G:F. No changes were found in TNF-α, IL-6, MPO, MDA, IgG, and protein carbonyl. Conclusively, SB and a combinational use of SB and PH showed minimal effects on growth performance and gut health when added to the diets of nursery pigs. However, PH supplementation increased feed efficiency of nursery pigs during 19–33 d post-weaning.


2021 ◽  
Vol 99 (12) ◽  
Author(s):  
Yi-Chi Cheng ◽  
Marcos Elias Duarte ◽  
Sung Woo Kim

Abstract The objective was to determine the nutritional and functional values of lysed Corynebacterium glutamicum cell mass (CGCM) as a protein supplement and a source of cell wall fragments supporting the growth and intestinal health of nursery pigs. Thirty-two pigs (21 d of age) were allotted to four treatments (n = 8) based on the randomized block design with sex and initial body weight (BW) as blocks. The main effect was the dietary supplementation of lysed CGCM (0, 0.7, 1.4, and 2.1%) replacing blood plasma and fed in two phases (10 and 11 d, respectively). Feed intake and BW were measured at the end of each phase. Pigs were euthanized on day 21 to collect jejunal tissue and mucosa to evaluate intestinal health. Ileal digesta were collected to measure the apparent ileal digestibility of nutrients in diets. Data were analyzed using Proc Mixed and Reg of SAS. Increasing daily intake of CGCM increased (linear; P < 0.05) ADG of pigs. Increasing CGCM supplementation affected (quadratic; P < 0.05) the relative abundance of Lactobacillaceae (minimum: 26.4% at 1.2% CGCM), Helicobacteraceae (maximum: 29.3% at 1.2% CGCM), and Campylobacteraceae (maximum: 9.0% at 1.0% CGCM). Increasing CGCM supplementation affected (quadratic; P < 0.05) the concentrations of immunoglobulin G (maximum: 4.94 µg/mg of protein at 1.0% CGCM) and protein carbonyl (PC; maximum: 6.12 nmol/mg of protein at 1.1% CGCM), whereas linearly decreased (P < 0.05) malondialdehyde (MDA) in the proximal jejunal mucosa. Increasing CGCM supplemention affected (quadratic; P < 0.05) intestinal enterocyte proliferation rate (maximum: 13.3% at 1.0% CGCM), whereas it did not affect intestinal morphology and the nutrient digestibility. In conclusion, supplementing 1.0% to 1.2%, reducing blood plasma supplementation by 0.7% to 0.9%, respectively, increased potential pathogenic microbiota associated in the jejunal mucosa resulting in increased immune response, enterocyte proliferation, and PC concentration. However, supplementing diets with 2.1% CGCM, replacing 1.5% blood plasma, improved growth performance, and reduced MDA without affecting nutrient digestibility, intestinal morphology, and microbiota in the jejunal mucosa. In this study, based on the polynomial contrast, supplementing 1.0% to 1.2% CGCM suppressed the benefits from blood plasma, whereas supplementing 2.1% CGCM showed functional benefits of CGCM with similar effects from blood plasma supplementation.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 201-201
Author(s):  
Sudario Roberto Silva Junior ◽  
Rhuan F Chaves ◽  
Maíra Resende ◽  
Ygor Henrique De Paula ◽  
Kenio De Gouvêa Cabral ◽  
...  

Abstract Antibiotics growth promoting (AGP) in animal feed has been restricted. With this, several additives have been tested in order to replace AGP and ensure intestinal health. The objective of this study was to evaluate the effects of a blend of additives on growth performance, diarrhea incidence and cecal content microbiota of nursery pigs. A total of 576 weaned pigs (6.21 ± 1.16 kg) were assigned into 4 treatments (12 replicates) in randomized block design: basal diet without additives (NC); basal diet with 120 ppm of halquinol (PC); NC + 0,05% blend of lactic acid (3,5%), benzoic acid (2,5%), flavonoids (3,5%) (B5); NC+ 0,1% of same blend (B10). The pigs were weighed 0 and 42 days into the experiment. On day 10, one animal per pen (10 replicates) was euthanized for microbiota analyses. The diarrhea incidence was calculated by the percentage of visual pens with diarrhea, by day, in the period. The growth performance was analyzed by GLIMMIX procedure and the means were compared with Tukey test (P < 0.050) (SAS, 2009). Diarrhea incidence was analyzed by GENMOD procedure (SAS, 2009). The Kruskal Wallis test was used to compare microbial biodiversity (P < 0.050) by statistical program STAMP. The final weight (P = 0.010) and average daily gain (P = 0.001) of B10 and PC were higher than NC. Regarding diarrhea, it was observed that the B5 and B10 had lower incidence when compared to other groups in the total period. In the microbiome analyses, it was observed that the B5, B10, and PC groups had lower (P = 0.021) biodiversity when compared to the NC piglets. However, the B5 and B10 group had higher biodiversity when compared to the PC group. In conclusion, the supplementation with 0,1% blend of additives can be a substitute for AGP.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 99-99
Author(s):  
Jessica M Johnson ◽  
Emma T Helm ◽  
Nicholas K Gabler ◽  
Eric R Burrough ◽  
Carson M De Mille

Abstract The physiological mechanisms by which in-feed antibiotics improve pig growth performance are largely unknown. One proposed mode of action is improvements in intestinal integrity and function. Therefore, the objective of this study was to test the hypothesis that in-feed therapeutic and sub-therapeutic antibiotics would improve intestinal integrity and function in nursery pigs. Twenty-four weaned pigs (6.1±1.1 kg BW) were randomly allotted to individual pens and assigned one of three dietary treatments as follows (n = 8 pigs/trt): 1) control, no antibiotics (CON), 2) CON + sub-therapeutic chlortetracycline [40 ppm in feed (sCTC)], and 3) CON + chlortetracycline-tiamulin [400 ppm + 35 ppm, respectively (CTCDen)]. The study consisted of two consecutive 14 d phases. Chlortetracycline-tiamulin was only fed in phase 1, sCTC was fed in both phases. Phase 1 and 2 ADG, ADFI, and G:F were determined. After 28 d, ileal and colonic ex vivo intestinal integrity was assessed via transepithelial resistance (TER) and macromolecule flux (FD4) in modified Ussing chambers. All data were analyzed for the fixed effects of treatment and start BW as a covariate. In phase 1, compared with CON and sCTC, CTCDen tended to have greater ADG (0.28, 0.31, and 0.33 kg/d, respectively, P = 0.10) and ADFI (0.28, 0.30, and 0.35 kg/d, respectively, P = 0.09). No differences in phase 1 G:F were observed (P = 0.11). Phase 2 ADG, ADFI, and G:F did not differ (P > 0.10). Further, ileal TER and FD4 did not differ (P > 0.10). Colonic TER tended to be increased in sCTC compared with CON and CTCDen (78, 56, and 59 Ω/cm2, respectively, P = 0.07). Compared with CON, colonic FD4 flux was decreased in sCTC and CTCDen by 35–40% (P = 0.03). Altogether, these data indicate that in-feed antibiotics improve colon integrity early in production which may contribute to improved growth performance.


Gut ◽  
2017 ◽  
Vol 67 (5) ◽  
pp. 847-859 ◽  
Author(s):  
Allison Cabinian ◽  
Daniel Sinsimer ◽  
May Tang ◽  
Youngsoon Jang ◽  
Bongkum Choi ◽  
...  

BackgroundInteractions between host immune cells and gut microbiota are crucial for the integrity and function of the intestine. How these interactions regulate immune cell responses in the intestine remains a major gap in the field.AimWe have identified the signalling lymphocyte activation molecule family member 4 (SLAMF4) as an immunomodulator of the intestinal immunity. The aim is to determine how SLAMF4 is acquired in the gut and what its contribution to intestinal immunity is.MethodsExpression of SLAMF4 was assessed in mice and humans. The mechanism of induction was studied using GFPtg bone marrow chimaera mice, lymphotoxin α and TNLG8A-deficient mice, as well as gnotobiotic mice. Role in immune protection was revealed using oral infection with Listeria monocytogenes and Cytobacter rodentium.ResultsSLAMF4 is a selective marker of intestinal immune cells of mice and humans. SLAMF4 induction occurs directly in the intestinal mucosa without the involvement of the gut-associated lymphoid tissue. Gut bacterial products, particularly those of gut anaerobes, and gut-resident antigen-presenting cell (APC)TNLG8A are key contributors of SLAMF4 induction in the intestine. Importantly, lack of SLAMF4 expression leads the increased susceptibility of mice to infection by oral pathogens culminating in their premature death.ConclusionsSLAMF4 is a marker of intestinal immune cells which contributes to the protection against enteric pathogens and whose expression is dependent on the presence of the gut microbiota. This discovery provides a possible mechanism for answering the long-standing question of how the intertwining of the host and gut microbial biology regulates immune cell responses in the gut.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 407-407
Author(s):  
Ki Beom Jang ◽  
Sung Woo Kim

Abstract This study aimed to evaluate supplemental effects of milk carbohydrates in whey permeate on jejunal mucosa-associated microbiota in nursery pigs during 7 to 11 kg BW. A total of 720 pigs at 7.5 kg BW were allotted to 6 treatments (6 pens/treatment and 20 pigs/pen). Treatments were 6 levels of whey permeate supplementation (0, 3.75, 7.50, 11.25, 15.00, and 18.75%) and fed to pigs for 11 d. On d 11, 36 pigs representing median BW of each pen were euthanized to collect the jejunal mucosa to evaluate microbiota in the jejunum by 16S rDNA sequencing. Data were analyzed using contrasts in MIXED procedure of SAS. Whey permeate contained 76.3% lactose and 0.4% milk oligosaccharides. Increasing whey permeate supplementation from 0 to 18.75% did not affect the alpha-diversity estimates of microbiota. Whey permeate supplementation tended to decrease (P = 0.073, 1.59 to 1.22) Firmicutes:Bacteroidetes compared with no addition of whey permeate. Increasing whey permeate supplementation tended to linearly increase Bifidobacteriaceae (P = 0.089, 0.73 to 1.11), decrease Enterobacteriaceae (P = 0.091, 1.04 to 0.52), decrease Stretococcaceae (P = 0.094, 1.50 to 0.71), and caused quadratic changes (P < 0.05) on Lactobacillaceae (maximum: 9.14% at 12.91% whey permeate). Increasing whey permeate supplementation caused a quadratic change (P < 0.05) on Lactobacillus_Salivarius (maximum: 0.92% at 7.35% whey permeate) and tended to cause quadratic changes on Lactobacillus_Rogosae (P = 0.083; maximum: 0.53% at 8.45% whey permeate) and Lactobacillus_Mucosae (P = 0.092; maximum: 0.70% at 6.98% whey permeate). In conclusion, supplementation of whey permeate as sources of lactose and milk oligosaccharides at a range from 7 to 13% seems to be beneficial to nursery pigs by increasing the abundance of lactic acid-producing bacteria in the jejunal mucosa.


2021 ◽  
Vol 34 (3) ◽  
pp. 338-344
Author(s):  
Sung Woo Kim ◽  
Marcos E. Duarte

In the modern pig production, pigs are weaned at early age with immature intestine. Dietary and environmental factors challenge the intestine, specifically the jejunum, causing inflammation and oxidative stress followed by destruction of epithelial barrier and villus structures in the jejunum. Crypt cell proliferation increases to repair damages in the jejunum. Challenges to maintain the intestinal health have been shown to be related to changes in the profile of mucosa-associated microbiota in the jejunum of nursery pigs. All these processes can be quantified as biomarkers to determine status of intestinal health related to growth potential of nursery pigs. Nursery pigs with impaired intestinal health show reduced ability of nutrient digestion and thus reduced growth. A tremendous amount of research effort has been made to determine nutritional strategies to maintain or improve intestinal health and microbiota in nursery pigs. A large number of feed additives have been evaluated for their effectiveness on improving intestinal health and balancing intestinal microbiota in nursery pigs. Selected prebiotics, probiotics, postbiotics, and other bioactive compounds can be used in feeds to handle issues with intestinal health. Selection of these feed additives should aim modulating biomarkers indicating intestinal health. This review aims to define intestinal health and introduce examples of nutritional approaches to handle intestinal health in nursery pigs.


Author(s):  
A. A. Ganiyu

Subcontracting is widely employed in the construction industry owing to the variation of methods, materials, magnitude, and function of the infrastructures. However, the rapport between parties in construction are mostly adversarial and plagued with hitches, which negatively impact construction productivity. This research investigates the problems associated with subcontracting strategies of contractors in industrial projects in the Eastern Province of Saudi Arabia via questionnaire survey. The questionnaire contains a list of thirty-three likely problems affecting subcontracting strategy of contractors organised under the three categories of planning, awarding, and contracting issues. The respondents matched the likely problems with the project value drivers (quality, cost, and time) with which they impact, and rated the magnitude of the problems on project performance. The survey identified incompatibility of the subcontractor/supplier’s time schedule with the project’s time schedule as the topmost problem related to planning issues. Unethical practices is ranked highest among problems related to awarding issues, while incompatibility of subcontracts’ terms and conditions with the main contract’s terms and conditions is rated top among the topmost problems related to contracting issues. The findings revealed that the three problem categories have negative impacts on all the project value drivers in different combinations and are almost equally significant in the view of contractors while making subcontracting decisions. Contractors are therefore advised to critically evaluate the schedule, cost, and quality performance of industrial projects during the planning, awarding, and contracting phase of subcontracting in industrial projects.


2001 ◽  
Vol 4 (1a) ◽  
pp. 91-99 ◽  
Author(s):  
Andrew Tomkins

AbstractMost European countries are now affected by demographic transition and changing epidemiology of disease; the nutrition of children is increasingly recognised as crucial for present and future health. Adequate dietary intake and nutritional status among children are important for their own growth, development and function but there is now increasing evidence that childhood nutrition also influences adult health. Intrauterine nutrition influences adult morbidity and mortality, but the childhood diet and nutritional status modify the increased risk of being born small. Thus, childhood diet needs to be taken more seriously in order to improve a nation's health as well as producing bright, active children. A key factor is the recognition that nutritional interventions at different stages of the life cycle are necessary if childhood nutrition is to improve. The mosaic pattern of the geography and social structure of communities in Europe produces ‘poverty’ and ‘consumer’ related nutrition patterns - often side by side. At one extreme, there is an urgent need to prevent obesity; while at the other extreme serious attention is required towards the prevention of deficiency disorders, mostly related to poverty and social exclusion. Few European governments take childhood nutrition at all seriously. This paper reviews a number of micronutrient issues and makes the case for the development of evidence-based policies and programmes for improving the nutrition of children in Europe.


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