Efeitos da forma física da ração e da linhagem de frangos de corte sobre a digestibilidade dos nutrientes e determinação de energia líquida

Lara, L.J.C.; Campos, Warley Efrem; Baião, N.C.; Lana, Ângela Maria Quintão; Cançado, S.V.; Rocha, J.S.R.; Pompeu, M. A.; Barbosa, V. M.

doi:10.1590/s0102-09352013000600037

Cited by 7 publications

(3 citation statements)

References 18 publications

(2 reference statements)

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“…Similar results were obtained in broilers because ether extract digestibility was better among chickens fed pelleted diets compared to those fed mash diets (ZELENKA, 2003;LARA et al, 2013).…”

Section: Resultssupporting

confidence: 68%

Effects of processing and the physical form of diets on digestibility and the performance of nursery piglets

Mazutti

Krabbe

Surek

et al. 2017

SCA

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The aim of this study was to assess the influence of various diet processing methods and physical forms on digestibility and zootechnical performance parameters of nursery piglets. The study was performed in 2 phases. The first phase was performed twice with 120 piglets per experiment, for a total of 240 newly weaned piglets, in a randomized block design with 6 treatments and 5 replicates (30 pens). The following experimental diets were offered from weaning to 21 days after weaning (initial nursery phase) and included the following: mash diet (M); mash diet conditioned at 60ºC (CM); diet pelleted at 60ºC/matrix 2.5 mm (P2.5); diet pelleted at 60ºC/matrix 2.5 mm and crumbled (P2.5C); diet pelleted at 60ºC/matrix 4.75 mm (P4.75); and diet pelleted at 60ºC/matrix 4.75 mm and crumbled (P4.75C). The animals' daily weight gain (DWG), daily feed intake (DFI) and feed conversion (FC) were assessed. Phase 2 used 24 piglets (33 days old) from Phase 1, which were lodged in individual metabolic cages. The experiment employed a randomized block design with 4 treatments and 6 replicates: mash diet (M); mash diet conditioned at 60ºC (CM); diet pelleted at 60ºC/matrix 2.5 mm (P2.5); and diet pelleted at 60ºC/matrix 4.75 mm (P4.75). Feces were collected to analyze the digestibility of and apparent digestible energy in dry matter, gross energy and ether extract. The processing and physical form of the diets did not affect the DWG and DFI of the 21-to 39-day-old piglets. The 2.5-mm-diameter pellets induced better FC compared to the crumbled and conditioned crumbled diets (P<0.05), which might be attributed to the better digestibility of the ether extract in the pelleted diets. Pellet size had no effect on the performance parameters. Key words: Ether extract. Feeding. Pellet. Swine. Weaning. ResumoO objetivo deste trabalho foi avaliar a influência de diferentes tipos de processamento e forma física da ração sobre a digestibilidade e parâmetros de desempenho zootécnico de leitões na fase de creche. O estudo foi conduzido em duas etapas. A primeira etapa foi repetida no tempo, com 120 leitões em cada experimento, totalizando 240 leitões recém-desmamados, num delineamento experimental em blocos ao acaso, com seis tratamentos e cinco repetições (30 baias). As dietas experimentais foram ofertadas do desmame aos 21 dias pós-desmame (fase inicial de creche), sendo: dieta farelada (F); dieta condicionada 60°C (FC); dieta peletizada 60°C / matriz 2,5 mm (P2.5); dieta peletizada 60°C / matriz 2,5 mm e triturada (P2.5T); dieta peletizada 60°C / matriz 4,75 mm (P4.75); dieta peletizada 60°C / matriz 4,75 mm e triturada (P4.75T). Foi determinado o ganho de peso diário (GPD), o consumo de ração diário (CRD) e a conversão alimentar (CA). Na segunda etapa foram utilizados 24 animais (33 dias de idade), provenientes da primeira etapa, os quais foram alojados individualmente em gaiolas metabólicas. O delineamento experimental foi inteiramente ao acaso, com quatro tratamentos de seis repetições cada: dieta farelada (F); dieta condicionada 60°...

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Section: Resultssupporting

confidence: 68%

Effects of processing and the physical form of diets on digestibility and the performance of nursery piglets

Mazutti

Krabbe

Surek

et al. 2017

SCA

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“…Based on the results of DM, CP and GE, the apparent digestibility coefficients of the diets were calculated [ADC (%) = (Nutrient intake -Excreted nutrient) * 100 / Nutrient intake] and the variables were expressed in units per mass unit (Lara et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Effects of Nutritional Levels on Performance, Carcass Characteristics and Nutrient Digestibility of Sexed Broilers

Muñoz

Suckeveris

Demuner

et al. 2018

Rev. Bras. Cienc. Avic.

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The objective of this study was to evaluate the effects of dietary nutrient levels on performance, carcass yield, commercial cuts, digestibility and economical viability of broilers from 1 to 42 days of age. During the experiment, 180 COBB 500™ chicks were housed in metal batteries and subjected to a completely randomized design in a 2x3 factorial arrangement, of two sexes and three diets (male, female and mixed), totaling 6 treatments and 6 repetitions of 5 birds each. Data were subjected to statistical analysis and the means were compared using the Tukey test, at 5% probability. The results indicate the effect of sex on performance and commercial cuts, except for breast and thigh fillets, in which males and females showed similar results when given the mixed diet. The influence of the nutritional levels on performance, digestibility and commercial cuts was observed, in which the female diet showed the highest results for feed intake, body weight and weight gain, in addition to greater retention of protein and crude energy. For drumstick and abdominal fat yield, the highest values were obtained using the mixed diet and the female diet, and the lowest values were obtained using the male diet. Regarding economic viability, the female diet showed the highest return per unit of Real (R$) spent on feed. Therefore, these data prove that the female diet had a positive effect when provided to both sexes, and it may be a promising alternative for its application at the production level.

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“…De maneira geral, a dieta que apresentou resultados favoráveis com relação ao CDAMS e CDAEB foi a formulada a partir das exigências para aves fêmeas uma vez que demonstrou boas retenções de MS e EB para ambos os sexos, com menores níveis nutricionais. Os valores médios de CDAMS (79,44%) e CDAPB (71,63%) da dieta para fêmea, concordam com os resultados Lara, et al (2013) que reportaram o CDAMS de 79,6% e CDAPB de 71,6 para dietas fareladas à base de milho e farelo de soja, no entanto, os níveis nutricionais das dietas avaliadas pelos autores discordaram uma vez que usaram 3210 kcal/kg de EM; 21,0% de PB; 1,16% Lisina e 0,75 Met+Cis no período de 22 a 36 dias de idade, valores superiores aos usados nesta pesquisa.…”

Section: Ensaio De Digestibilidadeunclassified

Desempenho, características de carcaça e coeficientes de metabolizabilidade de frangos de corte sexados

Muñoz¹

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Efeitos da forma física da ração e da linhagem de frangos de corte sobre a digestibilidade dos nutrientes e determinação de energia líquida

Cited by 7 publications

References 18 publications

Effects of processing and the physical form of diets on digestibility and the performance of nursery piglets

Effects of processing and the physical form of diets on digestibility and the performance of nursery piglets

Effects of Nutritional Levels on Performance, Carcass Characteristics and Nutrient Digestibility of Sexed Broilers

Desempenho, características de carcaça e coeficientes de metabolizabilidade de frangos de corte sexados

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