Viscosity and growth response of broilers fed high fiber diets supplemented with a corn-produced recombinant carbohydrase

Ayres, V.E.; Broomhead, J. N.; Li, X.; Raab, R. Michael; Moritz, J. S.

doi:10.3382/japr/pfz039

Cited by 8 publications

(8 citation statements)

References 35 publications

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“…Although the use of ileal-cannulated pigs in digestibility trials is not an ideal model to assess growth performance, we observed substantial decrease in ADG and final BW of pigs fed diets with increased viscosity even when pigs consumed the same amount of feed and metabolizable energy among dietary treatments. Similar observations have been reported previously in both broilers (29)(30)(31) and pigs (13,17,32) . We also observed that digesta viscosity was negatively correlated with ADG, which is in agreement with observations made in broilers (30) and pigs (13) .…”

Section: Discussionsupporting

confidence: 91%

“…Similar observations have been reported previously in both broilers (29)(30)(31) and pigs (13,17,32) . We also observed that digesta viscosity was negatively correlated with ADG, which is in agreement with observations made in broilers (30) and pigs (13) . Increased viscosity impairs nutrient digestibility and energy utilization that could be responsible for reduction of ADG and final BW (16,29,32) .…”

Section: Discussionsupporting

confidence: 91%

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Decreased nutrient digestibility due to viscosity is independent of the amount of dietary fibre fed to growing pigs

et al. 2021

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Fibre content and its effect on chyme viscosity are associated with changes in the digestive system of humans and pigs. However, it is unclear if fibre content and viscosity affect nutrient utilization and intestinal function independently or interactively. Therefore, we evaluated apparent ileal digestibility (AID) of nutrients and intestinal function in 36 ileal-cannulated barrows fed for 29 days either corn-soy (CSBM) or high-fibre CSBM+30% distillers dried grains with solubles (CSBM+DDGS) modified to three levels of viscosity by adding 5% non-viscous cellulose (CEL), 6.5% medium-viscous carboxymethylcellulose (MCMC) or 6.5% high-viscous CMC (HCMC). Digesta was collected on days 27 and 28 and intestinal samples on day 29. Feeding CMC, regardless of fibre content, increased viscosity of whole digesta (P = 0.003) and digesta supernatant (P < 0.0001) compared with CEL. Feeding CSBM+DDGS or CMC decreased AID of dry matter (P = 0.003; P < 0.0001) and crude protein (P = 0.02; P < 0.0001) compared with CSBM or CEL. Feeding CMC regardless of fibre content increased crypt depth in jejunum (P = 0.02) and goblet cell area in ileum (P = 0.004) compared with CEL. Adding DDGS or CMC did not affect villus height and gene expression of jejunal monosaccharide and amino-acid transporters. Feeding HCMC, regardless of fibre content, elevated amylase activity by 46% and 50% in jejunal (P = 0.03) and ileal digesta (P = 0.01) compared with CEL. In summary, diets with increased viscosity decreased nutrient digestibility and induced intestinal changes that were independent of the amount of fibre fed.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 91%

Decreased nutrient digestibility due to viscosity is independent of the amount of dietary fibre fed to growing pigs

et al. 2021

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“…Coccidiosis not only leads to clinical signs but can also result in poor performance [ 9 ]. Another factor that can challenge gut function is an increase in digesta viscosity, because it can decrease nutrient digestibility [ 7 ] and increases the retention time of the diet in the intestine, inducing competition with gut microbiota for digestible nutrients. Subsequently, this increases the risks of infection [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

“…The type of feedstuff added to the diet also interferes with intestinal health and broiler performance. Wheat and rye evoke increased intestinal viscosity in broilers due to high levels of soluble non-starch polysaccharides (NSP), and this results in impaired nutrient digestibility and predisposes to infections [ 6 , 7 ]. This effect is usually prevented by the inclusion of enzymes that break down soluble NSP.…”

Section: Introductionmentioning

confidence: 99%

Impaired Performance of Broiler Chickens Fed Diets Naturally Contaminated with Moderate Levels of Deoxynivalenol

Santos

Eerden

2021

Toxins

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Mycotoxin exposure is common in the poultry industry. Deoxynivalenol (DON) is usually detected at levels below the maximum threshold (5000 ppb), but depending on diet and age, broiler performance can be affected. We evaluated the effects of 900 ppb and 2300 ppb DON on the performance, intestinal morphometry, and lesion scores of broiler chickens. One-day-old male Ross broilers (n = 736) were divided into 4 treatments with 8 replicates each, and a pen containing 23 birds was the experimental unit. The animals were fed diets naturally contaminated with two levels of DON: 900 (Low DON—LD) or 2300 (Moderate DON—MD) ppb, with or without activated charcoal, over 28 days. After this, all birds were fed a marginally DON-contaminated diet without charcoal. During the first 28 days, body weight gain (BWG) and feed conversion ratio (FCR) were significantly impaired when broilers were fed a MD diet without activated charcoal. Even after feeding a marginally contaminated diet from D28–35, birds previously fed the MD diet presented a significantly lower performance. The villus height:crypt depth (VH:CD) ratio was significantly higher in the ileum from 14-day-old broilers fed the MD when compared with the LD diet. At D28, the MD diet caused decreased villus height (VH) and increased crypt depth (CD), affecting VH:CD ratio in both intestinal segments, with higher levels in the jejunum from 28-day-old broilers fed a non-supplemented LD diet. Broiler production was negatively affected by DON, even at moderate levels (2300 ppb).

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“…The NDF content of sago seems to be lower than the NDF content of yellow maize; however, the texture of sago fiber is harder than that of corn. Previous studies (Ayres et al, 2019;Yaghobfar & Kalantar, 2017;Bao et al, 2013) showed that feeding diets containing high fiber would increase the intestinal viscosity, the pathogenic microbial population, and reduce the pancreatic enzyme activity and the nutrient digestibility. The increase of the pathogenic microbial population will negatively affect gut health and growth performance.…”

Section: Introductionmentioning

confidence: 99%

Nutritional Evaluation of Sago of Gebang Tree (Corypha utan Lamk) from Different Locations in West Timor - Indonesia for Broilers

Nalle¹,

Helda²,

Masus³

et al. 2021

Trop. Anim. Sci. J.

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Two experiments were conducted to evaluate the nutritional value of sago from different locations in West Timor, Indonesia for broilers. Experiment I aimed at determining the apparent metabolizable energy (AME) and nutrient digestibility of sago from different locations. A total of 120 broilers (unsexed, age 21 d) were randomly distributed to 24 metabolic cages (5 birds/cage). The experimental design was a completely randomized design (CRD) consisting of 6 treatments and 4 replications. The experimental diets were a basal diet (maize-soy) and 5 treatment diets which were a mixture of basal ration (75%) and sago (25%) from different locations. Experiment II was about performance trials. Two different basal diets were formulated, supplemented with synbiotics and fed to 200 birds (unsexed, 10 birds/pen). The experimental design was a 2 x 2 factorial CRD. With the exception of phytate and phenol contents, the results showed that the location affected (p<0.05 to 0.01) the contents of dry matter, crude protein, and crude fiber, tannins, NDF, ADF, flavonoids, AME/n, and starch digestibility of sago. The location did not affect (p>0.05) ash, crude fat, starch, Ca, P, and gross energy contents of sago. Basal diets affected (p<0.05 to 0.001) all performance traits. Except for BWG, synbiotics did not affect (p>0.05) the performance of the birds. In conclusion, the nutrient composition and digestibility of sago are affected by locations. Sago is rich in starch and high in AME values, but poor sources of calcium, phosphor, and protein. Sago contains fiber, tannin, phytate, flavonoids, and phenol. Sago diets improved the performance of broilers. Synbiotics did not improve the performance of birds.

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Viscosity and growth response of broilers fed high fiber diets supplemented with a corn-produced recombinant carbohydrase

Cited by 8 publications

References 35 publications

Decreased nutrient digestibility due to viscosity is independent of the amount of dietary fibre fed to growing pigs

Decreased nutrient digestibility due to viscosity is independent of the amount of dietary fibre fed to growing pigs

Impaired Performance of Broiler Chickens Fed Diets Naturally Contaminated with Moderate Levels of Deoxynivalenol

Nutritional Evaluation of Sago of Gebang Tree (Corypha utan Lamk) from Different Locations in West Timor - Indonesia for Broilers

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