Growth performance and carcase quality in broiler chickens fed on bacterial protein grown on natural gas

Øverland, Margareth; Schøyen, H; Skrede, Anders

doi:10.1080/00071668.2010.522556

Cited by 6 publications

(10 citation statements)

References 23 publications

(22 reference statements)

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“…Similar to our study, feed intake of broiler chickens decreased with increasing levels of bacterial meal in diets ( Schøyen et al., 2007b , Øverland et al., 2010a ), which was also reported for broiler chickens fed with diets supplemented with low levels (<2%) of vinasse-grown C. jadinii at the expense of SBM ( Chand and Ullah Khan, 2014 ). Both yeast and bacterial meal are rich in nucleic acids when compared with conventional feed ingredients ( Castro et al., 1971 , Mateo et al., 2004 , Mateo and Stein, 2004 , Hellwing et al., 2007 ), which may increase dietary nucleic acid content and reduce feed intake in birds ( Kubota and Karasawa, 1994 ).…”

Section: Discussionsupporting

confidence: 89%

“…They observed similar weight gain in birds fed with the diets supplemented with 39 to 43% CP from yeast, compared with those fed with SBM-based diets, but weight gain was lower in birds fed with diets supplemented with 59 to 65% yeast CP. On the contrary, broiler chickens fed with diets containing bacterial meal comprising 17 to 34% of dietary CP had higher or similar weight gain than birds fed with SBM-based diets ( Schøyen et al., 2007a , Øverland et al., 2010a ). In addition, the same strain of C. jadinii successfully replaced up to 40% of the CP from conventional protein sources in diets for weanling piglets, and the growth performance of the pigs was maintained ( Cruz et al., 2019 ).…”

Section: Discussionmentioning

confidence: 86%

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Cyberlindnera jadinii yeast as a protein source for broiler chickens: effects on growth performance and digestive function from hatching to 30 days of age

et al. 2020

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Europe is heavily dependent on imported feed protein sources such as soybean meal ( SBM ); thus, investigating local sustainable alternatives is crucial to increase self-sufficiency. This study evaluated the effects of the inactivated yeast Cyberlindnera jadinii grown on local lignocellulosic sugars on the growth performance and digestive function of Ross 308 broiler chickens. A total of 1,000 male chicks were allocated to 20 pens. There were 5 replicate pens with 50 birds each, from 1 to 30 D after hatch. The birds were offered one conventional wheat–oat–SBM–based control diet and 3 diets with increasing levels of C. jadinii replacing 10, 20, and 30% of dietary crude protein ( CP ), whereas SBM levels were gradually decreased. The feed intake and weight gain of the birds decreased linearly, and feed conversion ratio increased linearly ( P < 0.01) with increasing dietary levels of C. jadinii . Nevertheless, growth performance and feed intake were similar between the birds fed with control diets and diets containing 10% CP from C. jadinii in the starter and grower periods. The apparent ileal digestibility ( AID ) of dry matter, crude fat, organic matter, and carbohydrates was higher in control diets than in diets with 30% C. jadinii CP ( P < 0.05) and decreased ( P < 0.01) with incremental levels of dietary C. jadinii. Regardless, the AID of CP, starch, ash, and phosphorus was unaffected. Ileal villus height on day 10 was maintained in birds fed with diets containing 30% C. jadinii CP compared with the birds fed with control diets but was lower for birds fed with diets containing 10 and 20% C. jadinii protein ( P < 0.05). To conclude, up to 10% C. jadinii CP can replace SBM CP in broiler chicken diets, maintaining growth performance and digestive function, whereas higher levels of C. jadinii may decrease bird performance. Altogether, this suggests the potential of C. jadinii as a local-based protein source in broiler chicken diets, contributing to a more sustainable feed.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 86%

Cyberlindnera jadinii yeast as a protein source for broiler chickens: effects on growth performance and digestive function from hatching to 30 days of age

et al. 2020

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“…The changes in fatty acid composition from adding 8% bacterial autolysate to diets were, however, less pronounced than those reported when adding 8% of bacterial meal, using the same control diet (Øverland et al., 2011). This could be due to a slightly lower lipid content in the bacterial autolysate compared with bacterial meal as reported by Øverland et al. (2010a).…”

Section: Resultsmentioning

confidence: 77%

“…Bacterial meal (BioProtein) produced by fermentation of natural gas by the bacteria Methylococcus capsulatus (>95%), together with Ralstonia sp., Aneurinibacillus sp. and Brevibacillus agri ., has shown to be a high‐quality feed ingredient for broiler chicken (Skrede et al., 2003; Schøyen et al., 2007a; Øverland et al., 2010a). The bacterial meal is a reddish‐brown dry powder containing approximately 96% dry matter, 70% crude protein with a well‐balanced amino acid profile, 10% lipids and 7% ash (Øverland et al., 2010b).…”

Section: Introductionmentioning

confidence: 99%

Fatty acid composition, oxidative stability and sensory quality of meat from broiler chicken fed autolysate from bacteria grown on natural gas

Øverland

Skrede

2011

Animal Physiology Nutrition

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Bacterial autolysate, a down stream product of bacterial biomass grown on natural gas by mainly the methanotrophic bacteria Methylococcus capsulatus, was fed at 8% as is to broiler chickens from 1 to 35 days of age for studies of fatty acid composition, lipid oxidation and sensory quality of thigh meat stored frozen for 6 month at -18 °C or -80 °C. Lipid oxidation was measured by thiobarbituric acid reactive substances (TBARS) and volatile profile by dynamic headspace gas chromatography. Adding bacterial autolysate to diets did not affect the total content of saturated, monounsaturated or polyunsaturated fatty acids in thigh meat, but increased the levels of C14:0, C16:0, C18:0 and C16:1n-7 and reduced the levels of C18:1n-7, C18:2n-6 and C18:3n-3 fatty acids. Feeding of bacterial autolysate tended (p < 0.08) to reduce TBARS of meat samples. Contents of volatiles were generally low, but feeding of bacterial autolysate significantly reduced levels of butanal (p < 0.04) and tended to reduce levels of hexanal (p < 0.11), pentanal (p < 0.09), 1-penten-3-ol (p < 0.08) and butanone (p < 0.08). Bacterial autolysate had no effects on sensory quality parameters of meat related to odour and flavour. To conclude, adding bacterial autolysate to diets did not affect the relative proportion of saturated, monounsaturated or polyunsaturated fatty acids, but reduced content of volatiles in frozen-stored broiler meat. The reduced susceptibility to lipid oxidation in broiler meat may be related to antioxidant properties of the bacterial autolysate.

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“…Contrarily, Overland et al [3637] reported improved FCR (p<0.05) due to inclusion of bacterial protein autolysate at 12% replacing soybean meal in broiler diet. In our study, improved FCR was seen at 2.5 and 5% inclusion levels of SCP in the diet.…”

Section: A C C E P T E D a R T I C L Ementioning

confidence: 99%

Growth performance, carcass traits and gut health of broiler chickens fed diets incorporated with single cell protein

et al. 2021

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Objective: This study was conducted to evaluate single cell protein (SCP), produced from Methylococcus species, as a protein source on the growth performance, carcass traits and gut health of broiler chickens.Methods: Ten iso-nitrogenous and iso-caloric diets containing 0 (Control), 2.5%, 5%, 7.5%, and 10% SCP replacing either soybean meal (T1 to T5) or fish meal (T6 to T10) were formulated. Each diet prepared for starter (0 to 14 days), grower (15 to 21 days), and finisher (22 to 42 days) phases was offered to four replicates of 10 chicks each (n = 400). Growth performance at different phases and carcass characteristics and intestinal morphology on 42nd day of trial were measured.Results: Body weight gain in groups fed 2.5% and 5% SCP diets were comparable to control during different phases and cumulatively, however lower (p<0.01) in 7.5% and 10% SCP diets. Feed conversion ratio was better (p<0.01) in 2.5% and 5% SCP diets. Dressing percentage, abdominal fat percentage and meat:bone ratio were not affected (p>0.05) by SCP inclusion in the diets. However, breast percentage was higher (p<0.01) in 2.5% and 5% SCP groups and thigh percentage higher in 7.5% and 10% SCP groups. Total microbial count in duodenum, jejunum and ileum were not affected (p>0.05) by SCP inclusion up to 10% in diets. Duodenal villi length and crypt depth were highest (p<0.01) in group fed 5% SCP diets and lowest in group fed 10% SCP diets. Jejunal villi length and crypt depth as well as ileal villi length were lowest (p<0.01) in group fed 10% SCP diets. Body weight gain, feed consumption, feed conversion ratio and gut health were better (p<0.01) in broilers fed fish meal based diets compared to soybean meal based diets.Conclusion: It was concluded that inclusion of SCP up to 5% replacing soybean meal in broiler diets is beneficial in improving growth rate, breast yield and gut health status.

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Growth performance and carcase quality in broiler chickens fed on bacterial protein grown on natural gas

Cited by 6 publications

References 23 publications

Cyberlindnera jadinii yeast as a protein source for broiler chickens: effects on growth performance and digestive function from hatching to 30 days of age

Cyberlindnera jadinii yeast as a protein source for broiler chickens: effects on growth performance and digestive function from hatching to 30 days of age

Fatty acid composition, oxidative stability and sensory quality of meat from broiler chicken fed autolysate from bacteria grown on natural gas

Growth performance, carcass traits and gut health of broiler chickens fed diets incorporated with single cell protein

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