Response of Broiler Chickens Fed on Maize-based Diets Substituted with Graded Levels of Sweet Potato Meal

Afolayan, S. B.; Dafwang, I. I.; Tegbe, T. S. B.; Sekoni, A. A.

doi:10.3923/ajpsaj.2012.15.22

Cited by 17 publications

(18 citation statements)

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“…Also, sweet potato is deficient in protein and sulphur amino acids contents which could have compounded this deficiency further. The reduction in body weight gain and higher FCR observed in birds fed with sweet potato diets are similar to those observed in previous studies when sweet potato was included at the rate of 200-300 g/kg in broiler diets (Afolayan, Dafwang, Tegbe, & Sekoni, 2012;Agwunobi, 1999;Maphosa, Gunduza, Kusina, & Mutungamiri, 2003). The higher feed intakes observed for birds fed on the SPF and SPF + E diets in the present study, however, are contradictory to those reported previously (Afolayan et al, 2012;Agwunobi, 1999;Maphosa et al, 2003), when sweet potato was included in these diets for broilers.…”

Section: Resultssupporting

confidence: 88%

“…Other authors, (Afolayan et al, 2012;Agwunobi, 1999;Maphosa et al, 2003) did not observe increased liver and intestinal weights in birds fed sweet potato diets which may be attributed to reduced intakes reported in those studies. As SPF diets were deficient in total dietary protein and amino acids, the increase in organ weight may not be a consequence of SPF inclusion as such.…”

Section: Resultsmentioning

confidence: 75%

“…The prominent role is reflected in the fact that the empty weight of this segment is usually 20%-50% higher than the ileum pertaining to a larger amount of material passing though this segment (Hetland & Svihus, 2001). Other authors, (Afolayan et al, 2012;Agwunobi, 1999;Maphosa et al, 2003) did not observe increased liver and intestinal weights in birds fed sweet potato diets which may be attributed to reduced intakes reported in those studies. As SPF diets were deficient in total dietary protein and amino acids, the increase in organ weight may not be a consequence of SPF inclusion as such.…”

Section: Resultsmentioning

confidence: 82%

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Evaluation of the effects of sweet potato (Ipomoea batatas (L.) Lam) in broiler diets

Pandi

Glatz

Forder

et al. 2017

Animal Physiology Nutrition

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SummaryCereal grains such as maize and wheat are used extensively in feed formulations for poultry as the primary source of carbohydrates. High cost of these grains in many developing countries necessitates the evaluation of other ingredients that are grown locally. Sweet potato is one such crop. The study was conducted as a proof of concept experiment to test the hypothesis that in the presence and absence of enzyme, sweet potato roots when included in diets of broiler chickens may affect the total metabolisable energy content of the diets which may exert certain influences on dry matter digestibility of these diets as well as impacting on production and certain gut parameters.A total of 120 chicks were raised on a commercial starter feed from day 0 to 19. On day 22, the birds were individually weighed and allocated to 96 single bird metabolism cages to conduct a 7-day classical apparent metabolisable energy (AME) assay. The test diets contained 0% and 25% sweet potato flour (SPF) with and without enzyme supplementation (Rovabio Excel AP T-flex) and replicated 24 times. AME of the control diet with and without enzyme was 14.05 and 13.91 MJ/kg whilst the AME of the SPF diets with and without enzymes were 13.45 and 13.43 MJ/kg respectively. AME of SPF was 12.08 MJ/kg. Birds fed the SPF had significantly reduced end weights (p = .002) and weight gains (p < .001) leading to significantly higher intake (p = .004) and FCRs (p < .001) in birds. These effects in growth parameters highlight the need to balance dietary protein and total amino acids when using SPF in broiler diets and may not be a negative effect of SPF per say as AME and dry matter digestibility of SPF diets were comparable to the control diet. The level of sucrase activity in the jejunum was significantly (p < .001) lower due to enzyme inclusion. Use of SPF in the current study did not negatively influence the activities of the brush border enzymes maltase and sucrase, gut morphology in the jejunum of broilers or the load of Enterobacteriaceae in the caecal of birds. This finding is promising in that the gut parameters associated with digestive capacity and gut health were not compromised with feeding of SPF to broilers. K E Y W O R D Sapparent metabolisable energy, digestive enzymes, dry matter digestibility, feed conversion ratio, gut microflora, gut morphology, intake | INTRODUCTIONEnergy represents more than 70% of the total input cost of producing live broilers, and therefore, it is paramount to assess the energy value of ingredients. The high cost of grains particularly in developing countries necessitates the evaluation of locally available alternative energy ingredients. Many of these alternative ingredients are of limited use as feed ingredients due to their dietary fibre content and other | e217anti-nutrient properties (Ravindran, 2012). For these ingredients to be considered for inclusion in poultry diets, a thorough understanding of their potential and limitations for use in poultry diets is warranted.Sweet potato can substitute cereal grain...

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 82%

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Evaluation of the effects of sweet potato (Ipomoea batatas (L.) Lam) in broiler diets

Pandi

Glatz

Forder

et al. 2017

Animal Physiology Nutrition

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“…The value obtained in this study ranged from 697.50-1086.15g. These values were lower than what was reported by Uchegbu et al (2010) and Afolayan et al (2014). Average weekly weight gain and average daily weight gain follow the same trend as total weight gain of birds on control were superior while birds on diets with 0.40% methionine had the least significantly.…”

Section: Growth Performance Characteristics Of Broiler Chickens (Finicontrasting

confidence: 60%

“…Birds on the control diets consumed significantly higher feed (2694.95g) followed by birds on 0.60% methionine with 2673.20g, 0.40% methionine with 2227.22g while those on 0.20% with 2160.58g consumed significantly low feed. These values were much higher than 1215g obtained for broilers at week 4 by Dafwang (2006) and the range of 1005.06 -1143.09g reported by Afolayan et al (2014). Average weekly feed intake and average daily feed intake followed the same trend with the control group consuming significantly higher feed on weekly and daily basis (673.74g and 96.24g) while birds on diets with 0.20% methionine consume significantly the least feed (540.15g, and 77.16g) weekly and daily respectively.…”

Section: Growth Performance Characteristics Of Broiler Chickens (Starcontrasting

confidence: 55%

The utilization of synthetic methionine in broiler chicken production: effect on growth performance, blood and carcass characteristics

Ozung¹,

Anya²,

Oko³

et al. 2018

Glo Jnl Pure Appl Sci

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An 8-week feeding trial was carried out to evaluate the effect of graded levels of synthetic methionine on the growth performance, blood and carcass characteristics of broiler chickens. A total of 120 day-old chicks of Amobyn strain with mean body weight of 36.67g were randomly divided into four groups of 30 chicks each to constitute treatments T 1 (0% control), T 2 (0.20% methionine), T 3 (0.40% methionine) and T 4 (0.60% methionine), respectively. Each group was further divided into three replicates of 10 birds each in a Completely Randomized Design (CRD). Feed and water were provided ad libitum and all the birds were managed on a deep litter floor under the same environmental conditions for 56 days. All data were subjected to One-way analysis of variance and significant mean values were separated using Duncan Multiple Range Test. The results obtained for starter broiler chickens showed that total feed intake, weekly feed intake, daily feed intake and feed conversion ratio were significantly (P<0.05) influenced by dietary treatments while the results for finisher chickens showed that only the final body weight was significantly (P< 0.05) influenced. The blood characteristics showed that monocytes, mean corpuscular volume and mean corpuscular haemoglobin concentration were significantly (P<0.05) influenced by dietary treatments. The serum biochemical indices showed no significant (P>0.05) differences between dietary treatments on all parameters. Carcass characteristics showed significant (P<0.05) differences between dietary treatment in pre-slaughter weight, lungs weight, intestinal length, intestinal weight as well as weight of spleen and oesophagus. Therefore, this study concludes that synthetic methionine can be included in the diets of broiler chickens up to 0.60% without detrimental effects on their growth performance, blood and carcass characteristics.

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Converting the Waste of Orange Fleshed Sweet Potato Biomass to Improve Performance Characteristics and Vitamin Profile of Broiler Chickens

Oladeji

Akinbola

Faniyi

et al. 2022

Waste Biomass Valor

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Response of Broiler Chickens Fed on Maize-based Diets Substituted with Graded Levels of Sweet Potato Meal

Cited by 17 publications

References 0 publications

Evaluation of the effects of sweet potato (Ipomoea batatas (L.) Lam) in broiler diets

Evaluation of the effects of sweet potato (Ipomoea batatas (L.) Lam) in broiler diets

The utilization of synthetic methionine in broiler chicken production: effect on growth performance, blood and carcass characteristics

Converting the Waste of Orange Fleshed Sweet Potato Biomass to Improve Performance Characteristics and Vitamin Profile of Broiler Chickens

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