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Inclusion of sorghum, millet and cottonseed meal in broiler diets: a meta-analysis of effects on performance.

Batonon-Alavo DI, Umar Faruk M, Lescoat P, Weber GM, Bastianelli D - Animal (2015)

Bottom Line: No effect of the level of substitution of sorghum on feed intake was found; however, growth performance decreased when the level of substitution of corn by sorghum increased.Cottonseed meal was substituted to soybean meal up to 40% and found to increase feed intake while reducing growth performance.An additional work is scheduled to validate these statistical results in vivo and to evaluate the interactions induced with the simultaneous inclusions of sorghum, millet and cottonseed meal in broiler feeding.

View Article: PubMed Central - PubMed

Affiliation: 1INRA,UR83 Recherches Avicoles,F-37380 Nouzilly,France.

ABSTRACT
A meta-analysis was conducted (i) to evaluate broiler response to partial or total substitution of corn by sorghum and millet and (ii) to determine the effect of soybean meal replacement by cottonseed meal in broiler diet. The database included 190 treatments from 29 experiments published from 1990 to 2013. Bird responses to an experimental diet were calculated relative to the control (Experimental-Control), and were submitted to mixed-effect models. Results showed that diets containing millet led to similar performance as the corn-based ones for all parameters, whereas sorghum-based diets decreased growth performance. No major effect of the level of substitution was observed with millet or cottonseed meal. No effect of the level of substitution of sorghum on feed intake was found; however, growth performance decreased when the level of substitution of corn by sorghum increased. Cottonseed meal was substituted to soybean meal up to 40% and found to increase feed intake while reducing growth performance. Young birds were not more sensitive to these ingredients than older birds since there was no negative effect of these ingredients on performance in the starter phase. Results obtained for sorghum pointed out the necessity to find technological improvements that will increase the utilization of these feedstuffs in broiler diet. An additional work is scheduled to validate these statistical results in vivo and to evaluate the interactions induced with the simultaneous inclusions of sorghum, millet and cottonseed meal in broiler feeding.

No MeSH data available.


Related in: MedlinePlus

Average daily gain (g/bird per day) as a function of average daily feed intake(g/bird per day) for sorghum, millet and cottonseed meal during starter (a) andgrower (b) phases. The lines represent the linear regression between both variables.The overall adjustments for starter phase were: ADG=−4.60+0.75ADFI (R2=0.91) for sorghum; ADG=10.75+0.40ADFI (R2=0.48) for millet; ADG=−7.45+0.78ADFI (R2=0.69) for cottonseed meal. Grower phase. Sorghum: ADG=10.87+0.31ADFI(R2=0.52); millet: ADG=28.46+0.30ADFI (R2=0.64); cottonseed meal: ADG=62.02+0.07ADFI (R2=0.02). Where ADG=average daily gain (g/bird per day), ADFI=averagedaily feed intake (g/bird per day).
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fig2: Average daily gain (g/bird per day) as a function of average daily feed intake(g/bird per day) for sorghum, millet and cottonseed meal during starter (a) andgrower (b) phases. The lines represent the linear regression between both variables.The overall adjustments for starter phase were: ADG=−4.60+0.75ADFI (R2=0.91) for sorghum; ADG=10.75+0.40ADFI (R2=0.48) for millet; ADG=−7.45+0.78ADFI (R2=0.69) for cottonseed meal. Grower phase. Sorghum: ADG=10.87+0.31ADFI(R2=0.52); millet: ADG=28.46+0.30ADFI (R2=0.64); cottonseed meal: ADG=62.02+0.07ADFI (R2=0.02). Where ADG=average daily gain (g/bird per day), ADFI=averagedaily feed intake (g/bird per day).

Mentions: Before any statistical analysis, ADG was expressed as function of ADFI in order to verifythe consistency of the database (Figure 2). Noclear outliers were denoted in both starter (from 1 to 21 days) and grower (from 21 to 42days) phases. The results of the regression analysis allowed a conclusion of arelationship between ADFI and ADG, with ADFI explaining 84.3% of ADG variance in starterphase and 54.0% in the grower one. However, for millet-based diets, a lower R2 (0.25) was obtained during starter phase (not shown). This was related to oneexperiment with a much lower FCR (0.85±0.04) compared with what could be expectedaccording to guidelines (1.13). These data were eliminated from other analyses with a newR2 of 0.48. In the grower phase, sorghum data could suggest a quadratic modelbetween ADG and ADFI; but the quadratic effect was found to be non-significant in theperformed regression test.Figure 2


Inclusion of sorghum, millet and cottonseed meal in broiler diets: a meta-analysis of effects on performance.

Batonon-Alavo DI, Umar Faruk M, Lescoat P, Weber GM, Bastianelli D - Animal (2015)

Average daily gain (g/bird per day) as a function of average daily feed intake(g/bird per day) for sorghum, millet and cottonseed meal during starter (a) andgrower (b) phases. The lines represent the linear regression between both variables.The overall adjustments for starter phase were: ADG=−4.60+0.75ADFI (R2=0.91) for sorghum; ADG=10.75+0.40ADFI (R2=0.48) for millet; ADG=−7.45+0.78ADFI (R2=0.69) for cottonseed meal. Grower phase. Sorghum: ADG=10.87+0.31ADFI(R2=0.52); millet: ADG=28.46+0.30ADFI (R2=0.64); cottonseed meal: ADG=62.02+0.07ADFI (R2=0.02). Where ADG=average daily gain (g/bird per day), ADFI=averagedaily feed intake (g/bird per day).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4492222&req=5

fig2: Average daily gain (g/bird per day) as a function of average daily feed intake(g/bird per day) for sorghum, millet and cottonseed meal during starter (a) andgrower (b) phases. The lines represent the linear regression between both variables.The overall adjustments for starter phase were: ADG=−4.60+0.75ADFI (R2=0.91) for sorghum; ADG=10.75+0.40ADFI (R2=0.48) for millet; ADG=−7.45+0.78ADFI (R2=0.69) for cottonseed meal. Grower phase. Sorghum: ADG=10.87+0.31ADFI(R2=0.52); millet: ADG=28.46+0.30ADFI (R2=0.64); cottonseed meal: ADG=62.02+0.07ADFI (R2=0.02). Where ADG=average daily gain (g/bird per day), ADFI=averagedaily feed intake (g/bird per day).
Mentions: Before any statistical analysis, ADG was expressed as function of ADFI in order to verifythe consistency of the database (Figure 2). Noclear outliers were denoted in both starter (from 1 to 21 days) and grower (from 21 to 42days) phases. The results of the regression analysis allowed a conclusion of arelationship between ADFI and ADG, with ADFI explaining 84.3% of ADG variance in starterphase and 54.0% in the grower one. However, for millet-based diets, a lower R2 (0.25) was obtained during starter phase (not shown). This was related to oneexperiment with a much lower FCR (0.85±0.04) compared with what could be expectedaccording to guidelines (1.13). These data were eliminated from other analyses with a newR2 of 0.48. In the grower phase, sorghum data could suggest a quadratic modelbetween ADG and ADFI; but the quadratic effect was found to be non-significant in theperformed regression test.Figure 2

Bottom Line: No effect of the level of substitution of sorghum on feed intake was found; however, growth performance decreased when the level of substitution of corn by sorghum increased.Cottonseed meal was substituted to soybean meal up to 40% and found to increase feed intake while reducing growth performance.An additional work is scheduled to validate these statistical results in vivo and to evaluate the interactions induced with the simultaneous inclusions of sorghum, millet and cottonseed meal in broiler feeding.

View Article: PubMed Central - PubMed

Affiliation: 1INRA,UR83 Recherches Avicoles,F-37380 Nouzilly,France.

ABSTRACT
A meta-analysis was conducted (i) to evaluate broiler response to partial or total substitution of corn by sorghum and millet and (ii) to determine the effect of soybean meal replacement by cottonseed meal in broiler diet. The database included 190 treatments from 29 experiments published from 1990 to 2013. Bird responses to an experimental diet were calculated relative to the control (Experimental-Control), and were submitted to mixed-effect models. Results showed that diets containing millet led to similar performance as the corn-based ones for all parameters, whereas sorghum-based diets decreased growth performance. No major effect of the level of substitution was observed with millet or cottonseed meal. No effect of the level of substitution of sorghum on feed intake was found; however, growth performance decreased when the level of substitution of corn by sorghum increased. Cottonseed meal was substituted to soybean meal up to 40% and found to increase feed intake while reducing growth performance. Young birds were not more sensitive to these ingredients than older birds since there was no negative effect of these ingredients on performance in the starter phase. Results obtained for sorghum pointed out the necessity to find technological improvements that will increase the utilization of these feedstuffs in broiler diet. An additional work is scheduled to validate these statistical results in vivo and to evaluate the interactions induced with the simultaneous inclusions of sorghum, millet and cottonseed meal in broiler feeding.

No MeSH data available.


Related in: MedlinePlus