Apparent and true amino acid digestibilities of feedstuffs in pigs employing the total ileal content (TIC) technique and the mobile nylon bag technique (MNBT)

Viljoen, J.; Fick, J.C; Coetzee, Sophia E.; Hayes, J. P.; Siebrits, F.K.

doi:10.1016/s0301-6226(97)00151-6

Cited by 7 publications

(4 citation statements)

References 28 publications

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“…La energía metabolizable aparente (EMA) de la dieta se determinó al sustraer la EB de la orina de la EDA de la dieta (Mendoza et al 2010). Se implementó un periodo de adaptación de 5 días y 2 días de recolección heces y orina (Viljoen et al 1998;Mendoza et al 2010;Mok et al 2013;Zhou et al 2013). En el periodo de recolección se calculó el consumo de alimento y para tal fin se pesó el alimento ofrecido y el despreciado al final del periodo de recolección (Lammers et al 2008b).…”

Section: Método Convencional Con Indicadorunclassified

Valoración de energía digestible de la glicerina cruda proveniente de aceite de palma -<i>Elaeis guineensis</i>- para cerdos en crecimiento en función del nivel de almidón de maíz en la dieta

Ordoñez-Gomez

Mejía

Afanador-Téllez

et al. 2017

Rev. Med. Vet. Zoot.

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Rev Med Vet Zoot. 64(2), mayo -agosto 2017: 52-69 ____________________________________________ Investigación 52Ordoñez-Gómez, et al. Valoración de energía digestible de la glicerina cruda proveniente de aceite de palma -Elaeis guineensis-para cerdos en crecimiento en función del nivel de almidón de maíz en la dieta RESUMENPara determinar la energía digestible aparente (EDA) de la glicerina cruda (GC) proveniente del aceite de palma (Elaeis guineensis) en cerdos se realizaron dos experimentos (E). En E1 se determinó la EDA para GC con la técnica de la bolsa móvil de nailon (TBMN) utilizando ocho cerdos castrados con cánula duodenal. En E2 se determinaron la EDA y la energía metabolizable aparente (EMA) para GC, por el método convencional con indicador (MCI), con 10 cerdos castrados ubicados en jaulas metabólicas. En E1 y E2 se evaluaron, en un arreglo factorial 2 x 5, dos niveles de almidón de maíz (NA) en la dieta, 10% (NA10) y 12% (NA12), y cinco niveles de sustitución con GC (0%, 2,5%, 5,0%, 7,5% y 10%) en E1 en un diseño completo al azar y en E2 en un diseño de cuadrado latino. Para TBMN y MCI los datos se analizaron mediante regresión lineal múltiple y el metabolismo del nitrógeno en MCI como un diseño de cuadrado latino utilizando los módulos REG y GLM del paquete SAS. Por TBMN no hubo efectos (P > 0,05) del NA sobre la EDA de GC. La EDA de GC se calculó en 3.251 kcal/kg MS. La EDA de GC en MCI dependió de NA (P < 0,001) estimándose en 4.427,3 y 3.769,3 Kcal/kg MS para NA10 y NA12, respectivamente. Hubo interacción (P < 0,001) entre NA y GC para la cantidad de nitrógeno digestible, se redujo cuando GC aumentó en NA12 y aumentó en NA10. Otros parámetros del metabolismo nitrogenado no se vieron afectados (P > 0,05). Los resultados de EDA corregidos por NA con MCI mostraron correlación alta (R 2 = 0,82) con TBMN. Con MCI se pudo establecer que el aumento en NA en la dieta reduce la EDA de GC. Palabras clave: biodiesel, glicerina cruda, metabolismo energético, subproductos. VALUATION OF DIGESTIBLE ENERGY OF CRUDE GLYCERIN FROM PALM OIL -Elaeis guineensis-FOR GROWING PIGS BASED ON DIETARY CORN STARCH LEVEL ABSTRACTTo determine the apparent digestible energy (EDA) of crude glycerin (GC) from palm oil (Elaeis guineensis) in pigs two experiments (E) were performed. In E1, EDA was determined to GC, with the technique of mobile nylon bag (TBMN) using eight barrows with duodenal cannula. In E2, EDA, EMA to GC was determined by the conventional method with indicator (MCI) with 10 barrows placed in metabolic cages. In E1 and E2 were evaluated in 2 x 5 factorial arrangement, two levels of corn starch (NA) in the diet, 10 (NA10) and 12% (NA12), and five levels of replacement by GC (0%, 2.5%, 5%, 7.5% and 10%), in E1 as a completely randomized design and in E2 as a Latin square design. For MCI and TBMN, data were analyzed using multiple linear regression and nitrogen metabolism in MCI as a Latin square design using the GLM and REG modules of SAS. By TBMN there was no effect (P > 0.05) in the NA on the EDA of GC. EDA of G...

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Section: Método Convencional Con Indicadorunclassified

Valoración de energía digestible de la glicerina cruda proveniente de aceite de palma -<i>Elaeis guineensis</i>- para cerdos en crecimiento en función del nivel de almidón de maíz en la dieta

Ordoñez-Gomez

Mejía

Afanador-Téllez

et al. 2017

Rev. Med. Vet. Zoot.

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“…Os coeficientes de digestibilidade dos aminoácidos essenciais do leite em pó foram inferiores, exceto leucina e lisina, aos determinados por Viljoen et al (1998a), utilizando a técnica da anastomose íleorretal, e aos de Viljoen et al (1998b), obtidos com leitões canulados, exceto para a metionina.…”

Section: Digestibilidade Ileal Aparenteunclassified

Digestibilidade ileal de aminoácidos de alimentos utilizados em dietas pré-iniciais para leitões, determinada pelo método do sacrifício

Apolônio

Donzele²,

Oliveira³

et al. 2002

R. Bras. Zootec.

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RESUMO -Este estudo foi realizado com o objetivo de determinar a digestibilidade ileal, aparente e verdadeira, dos aminoácidos de alimentos, como: leite em pó, soro de leite, soja micronizada, soja extrusada e plasma suíno, comumente utilizados na formulação de dietas pré-iniciais para leitões, pela técnica do sacrifício. Foram utilizados 96 leitões mestiços com 40 dias de idade, distribuídos em delineamento inteiramente casualizado, com seis tratamentos, oito repetições e dois animais por unidade experimental. As dietas foram formuladas para fornecer 7% de PB para o soro de leite e 13% para os demais alimentos, sendo o alimento avaliado a única fonte de proteína. Foi utilizada uma dieta isenta de proteína para determinação da perda endógena de aminoácidos. Os animais foram abatidos sete horas após a ingestão das dietas experimentais, sendo a digesta ileal coletada para formação de uma amostra composta de digesta de oito animais, obtendo-se duas amostras por tratamento. Os maiores valores de digestibilidade verdadeira dos aminoácidos essenciais foram obtidos no soro de leite, leite em pó e soja extrusada, sendo os menores coeficientes de digestibilidade verdadeira encontrados na soja micronizada. A treonina foi o aminoácido essencial que apresentou menor coeficiente de digestibilidade verdadeira em todos os alimentos avaliados. A metionina foi o aminoácido que apresentou maior coeficiente de digestibilidade verdadeira no soro de leite, na soja extrusada, na soja micronizada e no plasma suíno, enquanto a lisina foi o de maior coeficiente de digestibilidade verdadeira no leite em pó. O menor coeficiente de digestibilidade da lisina foi obtido na soja micronizada. Palavras-chave: aminoácidos, digestibilidade ileal, leitões, técnica do sacrifício Ileal Digestibility of Amino Acids in Feedstuffs Used in Pre-Starter Diets Determined by the Slaughter TechniqueABSTRACT -This study was carried out to determine ileal digestibilities in feedstuffs used in diets for piglets by the slaughter technique. The apparent and true digestibilities for skimmed milk powder, milk whey, extruded soybean, micronized soybean and swine plasma were determined. Ninety six crossbred piglets with forty days of age were allotted to a completely randomized design, with eight replications and two piglets for experimental unit. The animals were fed 5 diets (7% CP for WP and 13% for other diets), each containing one protein source. A protein free diet was used to calculate the endogenous nitrogen losses. The animals were slaughtered seven hours after feed intake. The highest coefficients of true digestibility of essential aminoacids were determined for milk whey, skimmed milk powder and extruded soybean and the lowest true digestibilities values were obtained for micronized soybean. Threonine was the essential aminoacid of lowest true digestibility among the evaluated feedstuffs. Methionine was the aminoacid of highest true digestibility in milk powder, extruded soybean, micronized soybean and swine plasma, while lysine showed the highest coefficie...

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“…These values tended to be lower than those obtained with the cannula technique (80.8%) (P > 0.05). According to Viljoen et al (1998), the endogenous contribution is not as pronounced when diets high in protein content are fed. The effect of mucosal shedding would thus not be as marked as with sources lower in protein content.…”

Section: Digestibility Valuesmentioning

confidence: 99%

Evaluation of in vivo techniques for the determination of apparent ileal amino acid digestibilities in feedstuffs for piglets

Viljoen¹,

Coetzee²,

Fick³

et al. 2000

SA J. An. Sci.

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Three in vivo techniques were evaluated in terms of their suitability for determination of the apparent ileal amino acid digestibility (AID) of protein sources for piglets. The techniques were: ileo-rectal anastomosis (IRA), cannulation at the distal ileum and a slaughter technique. A standard diet and three diets in which 20% of the standard diet was substituted with either skim milk powder (SMP), fish meal or roasted full-fat soya beans (FFS) were used. Piglets were weaned at 21 days of age, and the respective diets were fed in 24 equal hourly portions per day from days 29-37. Ileal digesta was collected from day 33-37 in IRA and cannulated piglets. Piglets used for the slaughter technique were killed at 37 days of age and ileal digesta was collected. Chromium III oxide was used as an indigestible marker with all three techniques. Although AID means did not differ (p > 0.05) between the different techniques, the cannulation technique resulted in the lowest variation (standard error of the mean) of all treatments (8.2 vs 13.7 and 14.1 for the slaughter and IRA-techniques respectively). AID means obtained using the cannula technique were 1.8 percentage units higher for the SMP diet than values obtained using the other techniques (83.2 versus 81.4 %), and up to 9.3 percentage units higher for the FFS diet (75.4 versus 66.1 %). Growth data suggested that the cannulation technique caused less trauma for the piglets than the IRA-technique. IRA-piglets had not yet regained their initial weaning weight by 37 days of age, while the other piglets gained weight over the trial period. The cannulation technique is the most attractive method for use with piglets in terms of the lower variation in digestibility values. Practical aspects such as ease of handling and sampling, surgical trauma and piglet stress, are also important and contribute to the selection of the cannula technique as the most appropriate.

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Apparent and true amino acid digestibilities of feedstuffs in pigs employing the total ileal content (TIC) technique and the mobile nylon bag technique (MNBT)

Cited by 7 publications

References 28 publications

Valoración de energía digestible de la glicerina cruda proveniente de aceite de palma -<i>Elaeis guineensis</i>- para cerdos en crecimiento en función del nivel de almidón de maíz en la dieta

Valoración de energía digestible de la glicerina cruda proveniente de aceite de palma -<i>Elaeis guineensis</i>- para cerdos en crecimiento en función del nivel de almidón de maíz en la dieta

Digestibilidade ileal de aminoácidos de alimentos utilizados em dietas pré-iniciais para leitões, determinada pelo método do sacrifício

Evaluation of in vivo techniques for the determination of apparent ileal amino acid digestibilities in feedstuffs for piglets

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