Study of methodological variations in apparent nutrient metabolism determination in broiler chickens

Cortés, María Esperanza; Ribeiro, Andréa Machado Leal; Gianfelici, Mario Federico; Kessler, Alexandre de Mello; Moraes, Mariana Lemos de

doi:10.1590/s1516-35982009001000010

Cited by 7 publications

(4 citation statements)

References 24 publications

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“…The transit time obtained in the present study was higher than that found by Cortés et al (2009), d, using the same methodoogy and, found an average transit time of 228 minutes in 21-d-old broilers. SG birds presented higher DTT as compared to FGAL at 19 days of age (p < 0.001).…”

Section: Effect Of Dietary Fiber Genetic Strain and Age On The Digescontrasting

confidence: 69%

Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens

Krás

Kessler

Ribeiro

et al. 2013

Rev. Bras. Cienc. Avic.

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In this study, 360 male broilers, out of which 240 of a fast-growing strain (Cobb500), and 120 of a slow-growing strain (Label Rouge), were used to evaluate the effect of dietary fiber on digesta transit time and digestive metabolism during the period of 1 to 42 days of age. A completely randomized experimental design with a 3x2 factorial arrangement was applied, consisting of three groups of birds (slow-growing -SG; fast-growing fed ad libitum -FGAL; and fast-growing pair-fed with SG broilers -FGPF) and two iso-protein diets (a 3100 kcal ME/kg low-fiber diet -LFD-and a 2800 kcal ME/ kg high-fiber diet -HFD-with 14% wheat bran and 4% oat hulls). HFD-fed birds presented lower ME retention (p < 0.001) and lower dry matter metabolizability (DMM) (p < 0.001), which is possibly related to the shorter digesta transit time observed in these birds (p < 0.001). DMM was reduced with age, whereas metabolizable energy remained almost constant (p < 0.001) independently of strain. This may be related to the increase in feed intake as birds age. The slowgrowing strain did not present better utilization of the high-fiber diet as compared to the fast-growing strain in none of the analyzed ages, even though showing a significant better use of fiber and dietary energy from 31 days of age.

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Section: Effect Of Dietary Fiber Genetic Strain and Age On The Digescontrasting

confidence: 69%

Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens

Krás

Kessler

Ribeiro

et al. 2013

Rev. Bras. Cienc. Avic.

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show abstract

“…In this regard, Zanella et al (1999) explained that the low recovery rate of chromium oxide led to lower ME values than those obtained by total collection in a study with broilers. Although chromium oxide is largely utilized, Cortés et al (2009) assumed that there might be variability among results due to the difficulty in reproducing them in some laboratories and the incomplete recovery of this marker from the feces, resulting in underestimated concentrations.…”

Section: Discussionmentioning

confidence: 99%

Nutritional value of glycerin for pigs determined by different methodologies

et al. 2017

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-The objective of this study was to determine the nutritional value of glycerin for pigs using different inclusion levels of this test ingredient and the methodologies of total collection and chromium oxide marker. Eight barrows were distributed individually into metabolic cages, in a randomized-block experimental design, and fed diets containing 0, 50, 100, and 150 g kg −1 plant-derived crude glycerin. The feed digestibility methodologies of total feces and urine collection and chromium oxide marker were analyzed. Inclusion of up to 150 g kg −1 crude glycerin improved the digestibility coefficients of organic matter and energy of the diets. The collection method based on the use of chromium oxide marker underestimates the digestibility coefficient of ash and the energy values of glycerin in relation to the total collection method, but yields similar results to those obtained with the total collection method for the dry matter, organic matter, crude protein, ether extract, and neutral detergent fiber assessed.

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“…The total collection method was used to determine metabolism. An initial adaptation period of four days was observed for the birds to adapt to the diet and environment, after which period total excreta collection was performed for three days (Cortés et al, 2009). The excreta were collected in plastic bags twice each day (09.00 and 16.00 h) to prevent fermentation and stored at -10 °C until further analysis.…”

Section: Methodsmentioning

confidence: 99%

Effect of incubation system on the development of intestinal villi, metabolism, and performance of one- to forty-day-old broiler chickens

et al. 2016

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-An experiment was performed to evaluate the effect of the incubation system -multiple-stage (MS) and single-stage (SS) -on the characteristics at hatching, intestinal morphology, metabolism, and performance of Cobb-500 chickens from 1 to 40 d of age. A total of 1,968 fertile eggs were incubated in two setters under commercial conditions. Birds hatched in SS were longer than those hatched in MS, and the females had higher relative intestinal weight compared with males. However, at hatching, there were no differences in BW and yolk-free body mass from incubation system or sex. In the period from 1-40 d, the birds hatched in SS were heavier, had higher weight gain and better adjusted feed conversion, without differences in feed intake and feed conversion. This result is due mainly to MS females, which always, although in some periods only numerically, exhibited worse responses than the other treatment, lowering the average MS bird performance. Sex influenced the duodenal villi height in chickens at 0 d; females showed larger villi than males. Moreover, the birds hatched in SS had deeper crypts than those hatched in MS. At 7 d, because males had higher feed intake, the differences in duodenal villi height found at hatching disappeared, leaving only a gender effect on jejunum crypt depth: females showed deeper crypts. As regards the metabolism coefficients of nutrients from 5 to 7 d, females were more efficient in metabolizing energy and showed higher apparent metabolizable energy corrected for nitrogen values than males, with no differences caused by the incubation system. The best incubation conditions are obtained with the single-stage system, based on the improved broiler performance (2.98%), especially in the females (5.04%).

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Study of methodological variations in apparent nutrient metabolism determination in broiler chickens

Cited by 7 publications

References 24 publications

Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens

Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens

Nutritional value of glycerin for pigs determined by different methodologies

Effect of incubation system on the development of intestinal villi, metabolism, and performance of one- to forty-day-old broiler chickens

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