24 research outputs found
Carcass trait, meat lipid profile and meat quality of broiler chickens fed diets containing high inclusion level of high quality cassava (Manihot esculenta) peel meal
No full textThe current hike in price of conventional energy feedstuff warrants an intensified effort for a sustainable alternative that would not compromise performance and meat quality of poultry birds. The study evaluated the carcass trait and meat quality of finisher broiler chickens fed diets containing highly processed cassava peel meal at 50 % inclusion level in replacement of maize. Three hundred and twenty Cobb500 broiler chickens were allocated to 4 dietary treatments on a weight equalisation basis. Diet 1 = control diet (corn-soybean meal based diet) containing 4.0 g kg−1 digestible methionine (MET), 0.96 g kg−1 digestible lysine, diet 2 = diet containing 50 % replacement of maize in diet 1 with high quality cassava peel meal and containing 4.0 g kg−1 digestible MET, 0.96 g kg−1 digestible lysine, diets 3 and 4 are similar to diet 2 except with higher MET and lysine concentrations. Diet 3 contains 4.4 g kg−1 digestible MET, 1.02 g kg−1 digestible lysine, and diet 4 contains 4.8 g kg−1 digestible MET, 1.08 g kg−1 digestible lysine. The study lasted for 3 weeks (finisher phase). The highest slaughtered, carcass, and small intestinal weight were recorded in birds fed diet 2 while the birds fed diet 3 had the least abdominal fat value (p 0.05). The water holding capacity and cooking loss percentage was highest in the meat of the chickens fed diet 4. The meat colour (redness, yellowness, and lightness) of chickens fed diet 4 recorded the highest value. The very low density of lipoprotein and triglyceride concentrations were least in the meat of chickens fed diet 2 (p 0.05). It can be concluded that supplementation of methionine/lysine to high quality cassava peel meal improved the carcass trait and meat quality of the broiler chickens. © Author(s) 2024
Haematological and serum biochemical parameters of broiler chickens fed varying dietary levels of fermented castor oil seed meal (Ricinus communis L.) and different methionine sources in South Western Nigeria
No full textIn this experiment, the effect of varying dietary levels of fermented castor oil seed meal (FCSM) and different methionine sources (DL-methionine and herbal methionine) on haematological and serum biochemical parameters of broilers. A total of 240 one-day-old Anak broiler chicks were used in the experiment lasted 56 days. The dietary experiment was laid out as a completely randomized design in a 4 × 2 factorial arrangement consisting of 4 dietary levels of FCSM (0, 50, 100 and 150 g/kg) and 2 methionine sources (DL-methionine and herbal methionine). The birds were weighed and randomly distributed into 8 treatments with 3 replicates of 10 birds each. During the starter phase of the experiment, haemoglobin, red blood cell count, mean corpuscular haemoglobin concentration and eosinophil counts were higher (
Impacto dos métodos de processamento e suplementação de aminoácidos da farinha de raiz e folhas de mandioca no desempenho e na microflora dos cecos de frangos de corte
No full textThis study investigated the effects of processed cassava root-leaf meal (CRLM) on broiler performance and caecal microflora. A total of 240 Ross broiler chicks were randomly assigned to 10 dietary treatments in a 5 × 2 factorial design, comprising five energy sources: maize, sun-dried CRLM (SCRLM), fermented CRLM (FCRLM), FCRLM with yeast (YFCRLM), and FCRLM with rumen filtrate (RFCRLM) and two amino acid levels (Ideal and National Research Council (NRC) 1994). The NRC diets included methionine and lysine, while the Ideal diets were supplemented with threonine and arginine. Each treatment was replicated three times with eight birds per replicate, and the trial lasted 28 days. Performance parameters were recorded weekly, and on day 28, selected birds were slaughtered for analysis of their gut microflora. The results indicated that diets formulated with Ideal amino acid levels significantly (P<0.05) improved weight gain (WG) and feed conversion ratio (FCR). The birds fed RFCRLM-based diets had significantly lower (P<0.05) feed intake (FI) and better FCR, comparable to those fed maize-based diets. Notably, the combination of RFCRLM and Ideal amino acids resulted in the lowest (P<0.05) FI and the best FCR overall. Microbial analysis revealed that maize-based diets resulted in higher (P<0.05) counts of Bacillus subtilis and Proteus mirabilis, whereas the CRLM-based diet, regardless of amino acid level, resulted in significantly lower (P<0.05) total bacterial counts (TBCs). In conclusion, supplementing broiler diets with Ideal amino acids enhanced growth performance, and RFCRLM effectively reduced feed intake without compromising FCR. Moreover, processed CRLM proved beneficial in lowering microbial load when used as an alternative to maize in broiler diets.Este estudo investigou os efeitos da farinha de raiz e das folhas de mandioca processada (FRFM) no desempenho de frangos de corte e na microflora cecal. Um total de 240 frangos de corte Ross foram distribuídos aleatoriamente por 10 tratamentos alimentares em um desenho fatorial 5×2, composto por cinco fontes de energia: milho, FRFM seco ao sol (FRFMSS), FRFM fermentado (FRFMf), FRFM com levedura (FRFMl) e FRFM com filtrado ruminal (FRFMfr) e dois níveis de aminoácidos (Ideal e National Research Council (NRC) 1994). As dietas NRC incluíam metionina e lisina, enquanto as dietas Ideais foram suplementadas com treonina e arginina. Cada tratamento foi replicado três vezes com oito aves por repetição, e o ensaio teve a duração de 28 dias. Os parâmetros de desempenho foram registados semanalmente e, no dia 28, as aves selecionadas foram abatidas para análise da microflora intestinal. Os resultados indicaram que as dietas formuladas com níveis ótimos de aminoácidos melhoraram significativamente (P<0,05) o ganho de peso (GP) e a taxa de conversão alimentar (TCA). As aves alimentadas com dietas à base de FRFMfr apresentaram uma ingestão de ração (IR) significativamente mais baixa (P<0,05) e uma melhor conversão alimentar, comparável às alimentadas com dietas à base de milho. Notavelmente, a combinação de aminoácidos FRFMfr e Ideal resultou no menor (P<0,05) IR e no melhor TCA global. A análise microbiana revelou que as dietas à base de milho resultaram em contagens mais elevadas (P<0,05) de Bacillus subtilis e Proteus mirabilis, enquanto a dieta à base de FRFM, independentemente do nível de aminoácidos, resultou em contagens bacterianas totais (CBTs) significativamente mais baixas (P<0,05). Concluindo, a suplementação de dietas para frangos de corte com aminoácidos ideais melhorou o desempenho do crescimento, e o FRFMfr reduziu de maneira eficaz a ingestão de ração sem comprometer a conversão alimentar. Além disso, o FRFM processado mostrou ser benéfico na redução da carga microbiana quando utilizado como alternativa ao milho em dietas de frangos de corte
Efecto del reemplazo de los despojos de trigo con paja de soja en la respuesta de crecimiento, perfil sanguíneo y rendimiento de la carcasa de pollos de engorde
No full textSe realizó un estudio de alimentación de 5 semanas para evaluar la idoneidad de la paja de soja (SC) como reemplazo de los despojos de trigo en las dietas de pollos de engorde. Un total de trescientos sesenta (360), 21 días de edad, pollos de engorde se pesaron individualmente y se asignaron aleatoriamente a 1 de 3 tratamientos dietéticos con 8 plumas repetidas y 15 aves por repetición en un diseño completamente aleatorizado. Los tratamientos dietéticos consistieron en dietas basadas en maíz y soja que contenían 0, 50 y 100% de SC como reemplazo de los despojos de trigo. Los datos generados sobre el rendimiento de crecimiento, los índices de sangre, el rendimiento de la canal y las propiedades sensoriales de los pollos de engorde de acabado se analizaron mediante ANOVA usando PROC GLM de SAS (2007). Los resultados mostraron que un mayor peso final (P 0.05). Las aves alimentadas con SC al 100% tenían un peso vivo (P <0.05) más alto, peso desplumado, alas y peso de molleja vacía en comparación con otros tratamientos. La sustitución de los despojos de trigo con paja de soja no interfirió con las propiedades organolépticas de la carne de pollo de engorde. Más aún, las aves alimentadas con 100% de SC tenían el menor costo de alimentación, el costo de alimentación por ganancia de peso y el valor comercial más rentable como lo revela el menor costo total de producción. Por lo tanto, la paja de soja podría usarse para reemplazar completamente los despojos de trigo como fuente de fibra dietética en las dietas de los pollos de engorde
Oral administration of aqueous bamboo leaf extract: effect on performance, haematological indices and blood oxidative status of broilers
No full textThe growing concerns over antibiotic resistance and the need for safer alternatives in broiler production make exploring natural additives like plant extracts imperative to enhance broiler health and performance. This study evaluated the effect of aqueous bamboo leaf extract (BLE) in drinking water on broiler chickens’ performance, haematological indices, and blood oxidative status. Ninety-six Ross 308 one-day-old broilers were randomly assigned to four treatments: T1 (Control, ordinary water), T2 (antibiotics (Tetranor 5% at 5 g per litre of water)), T3 (50 ml BLE per litre of water) and T4 (100 ml BLE per litre of water), each with four replicates of six birds. Performance data were recorded weekly over 8 weeks, and blood samples were collected on day 56 for haematological and oxidative status analysis. Data were analysed using SAS (2000) with means separation via Tukey’s test. Results showed that broilers that consumed water containing 100ml/L BLE had the highest (p < 0.05) live weight (LW) of 1078.20 g and weight gain (WG) of 1029.19 g at the starter phase. At the finisher phase, broilers in the 100ml BLE group had the highest (p < 0.05) LW (2695.42 g) and zero mortality, whereas the control group recorded the lowest LW (1672.95 g). The feed conversion ratio (FCR) was improved (p < 0.05) in broilers that had access to water containing 100 ml/L BLE at both phases. Haematological analysis revealed increased (p < 0.05) packed cell volume and haemoglobin concentrations in the 100 ml/L BLE group. Oxidative stress markers showed lower (p < 0.05) malondialdehyde levels for broilers in the 100 ml/L BLE group than those in the control group. Superoxide dismutase was reduced (p < 0.05) for broilers given ordinary water and those given antibiotics but increased for broilers with 100 ml/L BLE. In conclusion, including BLE at 100 ml/L in drinking water enhanced weight gain, FCR, and survival rate while reducing oxidative stress, indicating a promising natural alternative for improving broiler health and performance
POTENCIAL DE Artocarpus altilis, UN RECURSO ALIMENTICO FORESTAL, PARA LA NUTRICION DE CONEJOS
No full text Productive response of rabbits fed with diets containing graded levels of sun dried breadfruit (SBFM) meal were studied using 80 unsexed weaner rabbits. Four dietary treatments were formulated such that SBFM replaced maize weight for weight at 0%, 22.2%, 44.4% and 66.6% levels respectively. Rabbits were randomly allotted to the dietary treatments such that there were 20 rabbits per treatment. Growth response, nutrient utilization, haematological indices, serum biochemistry, carcass yield and meat composition were evaluated. Rabbits fed with 22.2% maize replaced with SBFM recorded the highest (PSe evaluó la respuesta productiva de conejos alimentados con dietas que contenía fruto seco del árbol del pan (SBFM). Se emplearon 80 conejos destetados de ambos sexos, los cuales fueron alimentados con dietas formuladas para que SBFM reemplazara el grano de maíz en 0%, 22,2%, 44,4% y 66,6% respectivamente. Se evaluó el crecimiento, digestibilidad de los nutrientes, índices hematológicos, bioquímica sanguínea, rendimiento de canal y composición de la carne fueron. Los conejos alimentados con 22,2% SBFM registraron la mayor (
Impact of reduced dietary crude protein levels and phytase enzyme supplementation on growth response, slurry characteristics, and gas emissions of growing pigs
No full textPOTENTIAL OF BREAD FRUIT- AN ECOLOGICALLY FOREST BASED FEED RESOURCE IN RABBIT NUTRITION
No full text Productive response of rabbits fed with diets containing graded levels of sun dried breadfruit (SBFM) meal were studied using 80 unsexed weaner rabbits. Four dietary treatments were formulated such that SBFM replaced maize weight for weight at 0%, 22.2%, 44.4% and 66.6% levels respectively. Rabbits were randomly allotted to the dietary treatments such that there were 20 rabbits per treatment. Growth response, nutrient utilization, haematological indices, serum biochemistry, carcass yield and meat composition were evaluated. Rabbits fed with 22.2% maize replaced with SBFM recorded the highest (
Effect of replacing soybean meal with shrimp waste meal in the diets of growing turkeys on nutrient digestibility and metabolisable energy
No full textSoybean meal (SBM), one of the main protein sources in turkey production is becoming expensive. Shrimp waste meal (SWM), a by-product of the shrimp industry is a good prospect as a cheaper alternative. It was hypothesised that Nigerian indigenous turkeys (NIT) should be able to digest and utilise SWM better than British United Turkeys (BUT) because of their hardy nature. A 56-day study was carried out to determine metabolisable energy and apparent nutrient digestibility of growing turkeys fed diets containing SWM. Four diets were formulated such that SBM in the control diet (diet 1) was substituted by SWM at 150, 300 and 450 g/kg (protein for protein) in diets 2, 3, and 4, respectively. Eighty (80) four-weeks-old male sex BUT and 80 NIT were allotted on weight equalisation into four dietary treatments replicated four times with five turkeys per replicate in a 2 × 4 factorial arrangement. The total faecal collection method was used for determining apparent and true nutrient digestibility and metabolisable energy values. The experiment was arranged in a completely randomised design and data collected were analysed using ANOVA with SAS package. At the starter phase, NIT recorded (p < 0.05) higher values for dry matter (DM), Ether extract (EE), nitrogen-free extract (NFE), Apparent metabolisable energy corrected for nitrogen (AMEn) but lower true metabolisable energy corrected for nitrogen (TMEn). Turkeys fed SWM recorded higher (p < 0.05) AMEn. At the grower phase, turkeys fed 300 g/kg SWM recorded higher (p < 0.05) values for CF and ash. Ash and CP digestibility values were higher (p < 0.05) in BUT ditto for TMEn. It was concluded that NIT could handle SWM better than BUT, however, only at the starter phase at 300 g/kg substitution for SBM
Inhibition and Compressive-Strength Performance of Na₂Cr₂O₇ and C₁₀H₁₄N₂Na₂O₈.2H₂O in Steel-Reinforced Concrete in Corrosive Environments
No full textThis paper studied corrosion-inhibition and compressive-strength performances of NaThe accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
