Atmospheric Ammonia Concentration Effects on Broiler Growth and Performance

Beker, A.; Vanhooser, S. L.; Swartzlander, J. H.; Teeter, R. G.

doi:10.1093/japr/13.1.5

Cited by 108 publications

(91 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The unchanged feed to gain ratios probably indicated that the decreased final weights (or daily BW gains) of broilers result from lowered feed intake rather than metabolic changes (Charles and Payne, 1966). Moreover, research proved that blood uric acid and blood plasma uric acid nitrogen at 30 and 60 ppm ammonia did not differ significantly (Beker et al, 2004). Urea nitrogen contents of domestic animals and blood and uric acid contents of poultry blood reflect animal and poultry metabolism; the urea nitrogen contents or uric acid contents are increased in the blood plasma if metabolism is affected (Webel et al, 1997;Hartman et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Antioxidant capacity and meat quality of broilers exposed to different ambient humidity and ammonia concentrations

Wei¹,

Hu²,

Sa³

et al. 2014

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT.To investigate the effect of humidity and ammonia on the antioxidative capacities and meat qualities of broilers, 192 broilers were divided into 2 groups: high (H, 70 ppm) and low (L, 30 ppm) ammonia concentration. These groups were divided into 30% (Treatment humidity, T) and 60% (Control humidity, C) humidity, giving 4 treatments: C+L, C+H, T+L, and T+H. Blood and muscle antioxidative capacities and meat quality were measured. In the H group, body weight (BW), average daily feed intake (ADFI), average daily weight gain (ADG), blood and muscle antioxidative capacities, and postmortem pectoral muscle a* of broilers were significantly decreased (P < 0.05), and pectoral muscle thiobarbituric acid reactive substance (TBARS) contents and drip losses, postmortem pectoral muscle b* (P < 0.05) and L* (P = 0.054), and pectoral muscle shear forces (P = 0.075) increased. In the T condition, BW, ADFI, pectoral muscle superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, and pectoral muscle L* decreased (P = 0.053), and pectoral muscle shear forces and TBARS contents increased (P < 0.05). In the T+H group, BW, ADFI, ADG, blood antioxidative capacities, pectoral muscle SOD and GSHPx activities, and postmortem pectoral muscle a* were significantly lower than those of the C+L group, but postmortem pectoral muscle TBARS contents and pectoral muscle drip losses and shear forces significantly increased (P < 0.05). These results revealed that T+H could significantly reduce growth performance, antioxidative capacities, and meat quality of broilers; T intensified these negative effects.

show abstract

Section: Discussionmentioning

confidence: 99%

Antioxidant capacity and meat quality of broilers exposed to different ambient humidity and ammonia concentrations

Wei¹,

Hu²,

Sa³

et al. 2014

Genet. Mol. Res.

View full text Add to dashboard Cite

show abstract

“…Our findings suggest that exogenous hemicellulases produced by the SSF of soybean hull and PESR with A. pullulans partially eliminated the anti-nutritional factors present in substrates. This resulted in enhanced digestibility and diminished the deleterious effects on the gut, as well as enhancing the accessibility of nutrients by breaking down the cell wall (Beker et al, 2004;Chiang et al, 2003;Lee et al, 2015). Several studies have demonstrated the beneficial effects of xylanase and mannanase supplements on nutrient digestion in poultry.…”

Section: Improving Nutrition Utilization and Meat Quality Of Broiler mentioning

confidence: 99%

“…High ammonia nitrogen concentration may negatively disturb the growth and differentiation of intestinal epithelial cells accompanied by compromised nutrition digestibility, further increasing the risk of diarrhea (Younes et al, 1996;Beker et al, 2004). Moreover, there are considerable experimental studies that suggest atmospheric NH 3 would affect the performance and projected disease susceptibility of poultry (Beker et al, 2004).…”

Section: Improving Nutrition Utilization and Meat Quality Of Broiler mentioning

confidence: 99%

“…Moreover, there are considerable experimental studies that suggest atmospheric NH 3 would affect the performance and projected disease susceptibility of poultry (Beker et al, 2004). Nitrogen metabolism in the colon is modulated by the metabolic activity of resident microflora which may be affected by the availability of substrate, particularly dietary carbohydrates (Younes et al, 1996).…”

Section: Improving Nutrition Utilization and Meat Quality Of Broiler mentioning

confidence: 99%

See 1 more Smart Citation

Improving Nutrition Utilization and Meat Quality of Broiler Chickens Through Solid-State Fermentation of Agricultural By-Products by Aureobasidium Pullulans

Lee

Lai

Lin

et al. 2017

Rev. Bras. Cienc. Avic.

View full text Add to dashboard Cite

Mushroom stalk residue, soybean hull, Aureobasidium pullulans, digestibility, meat water holding capacity.Submitted: 21/February/2017 Approved: 28/July/2017 ABSTRACT A 35 d trial was conducted to evaluate the effects of dietary supplementation of co-fermented agricultural by-products, soybean hulls and Pleurotus eryngii stalk residue (PESR), with Aureobasidium pullulans on nutrients digestibility and meat quality in broilers fed on conventional corn-soybean meal basal diet. A total of 400 1-d-old Ross broilers were allotted to 4 dietary treatments with 4 replicate pens (25 birds per pen). Birds were fed the corn-soybean meal diets supplemented with 0% (CON), 0.5% fermented soybean hulls (0.5% FSBH), 0.5% fermented soybean hulls partially replaced with PESR (0.5% FSHP) and 1.0% FSHP. The broilers fed on the diet that contained fermented products had higher total tract apparent digestibility for hemicellulose than those on CON (p<0.05). Meanwhile, the birds fed on 0.5% FSHP also showed the lightest duodenum and jejunum weight among all groups. Compared with the CON, the inclusion of 1.0% FSHP in the diet significantly decreased ammonia N concentration in cecum followed by 0.5% FSHP and subsequent 0.5% FSBH group. Dietary supplementation of fermented products significantly improved WHC and increased protein content in meat as compared with the CON. Moreover, the fat content in meat decreased in the broilers that received 0.5% FSBH and 1.0% FSHP. In conclusion, dietary supplementation of co-fermented agricultural by-products, PESR and soybean meal, could improve the digestibility of hemicellulose and decrease the cecal ammonia N concentration; moreover, the increased WHC and protein level as well as decreased fat content in meat suggested the promising utilization of these low-cost materials as broiler feed additives.

show abstract

“…Of the airborne contaminants, ammonia (NH 3 ) is considered to be the most harmful gas released from broiler litter (Carlie, 1984) and is considered detrimental in the modern poultry house (Beker et al, 2004;Miles et al, 2004). Exposure to an excessive amount of NH 3 decreases the growth performance of animals (Beker et al, 2004;Miles et al, 2004) and compromises productivity (Deaton et al, 1982;Miles et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Ammonia concentration and relative humidity in poultry houses affect the immune response of broilers

Wei

et al. 2015

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT.To investigate the effect of ammonia (NH 3 ) and humidity on the immune response of broilers, broilers were exposed to 30 or 70 mg/kg atmospheric NH 3 for 21 days. Additionally, birds were exposed to 35, 60, and 85% relative humidity (RH). The relative weights of lymphoid organs, serum total protein, serum globulin, serum albumin, serum lysozyme, proliferation index of peripheral blood lymphocytes, and splenic cytokine gene expression were determined. Exposure to 70 mg/kg NH 3 decreased the relative weight of the spleen during the experimental period, serum lysozyme concentration in the first and second weeks, and serum globulin concentration in the third week. The proliferation of peripheral blood lymphocytes was reduced. High levels of NH 3 caused increase in IL-1β gene expression in the experimental period and IL-4 gene expression in the first week. Birds exposed to 85% RH had lower thymus and bursa of Fabricius weights in the third week and serum lysozyme concentration in the first week; IL-1β and IL-4 expressions were higher in the second and third weeks and first and second weeks, respectively, than in birds exposed to 60% RH. IL-4 expression was lower during the first week, and IL-1β expression was higher during the second week with 35% RH than with 60% RH. In conclusion, high NH 3 level in the poultry house suppressed the immune response of broiler chickens. Neither high nor low RH benefited the immune response of broilers. Furthermore, there was an interactive effect between NH 3 and RH on the immune response of broilers.

show abstract

Atmospheric Ammonia Concentration Effects on Broiler Growth and Performance

Cited by 108 publications

References 18 publications

Antioxidant capacity and meat quality of broilers exposed to different ambient humidity and ammonia concentrations

Antioxidant capacity and meat quality of broilers exposed to different ambient humidity and ammonia concentrations

Improving Nutrition Utilization and Meat Quality of Broiler Chickens Through Solid-State Fermentation of Agricultural By-Products by Aureobasidium Pullulans

Ammonia concentration and relative humidity in poultry houses affect the immune response of broilers

Contact Info

Product

Resources

About