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Digestibility and nutrient retention of a wheat bran-containing diet containing two vegetable oil sources applied to laying hens with emphasis on prefeeding period


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Concentrations of short-chain fatty acids and the percentage of distribution of acetic acid, propionic acid, and butyric acid, as well as branched-chain fatty acids, in the excrement samples collected from hens fed with different wheat bran (WB) levels and oil supplementations. Data represent LS means and standard error of means (SEM), as well as significance levels of the influence of WB and oil supplementation, including their interaction (WB × Oil).Tabelle 3. Konzentration der kurzkettigen Fettsäuren, sowie die prozentuelle Verteilung von Acetat, Propionat, Butyrat und den verzweigten kurzkettigen Fettsäuren in den Exkrementen von Legehennen, die mit ansteigenden Gehalten von Weizenkleie sowie verschiedenen pflanzlichen Ölen gefüttert wurden. Die Daten zeigen die LS-Mittelwerte, den Standardfehler der Mittelwerte und das Signifikanzlevel von Weizenkleie und Öl sowie deren Interaktionen.

Feed
WBOilWB*Oil
Parameters2CONRCONSLOW RLOW SHIGH RHIGH SSEMp-Valuep-Valuep-Value
Concentration (mmol/kg)
Acetic acid13.1811.4222.5125.0227.0947.764.983*********
Propionic acid0.370.471.061.551.962.740.303**n.s.n.s.
Iso-butyric acid0.120.180.200.350.250.180.048n.s.n.s.n.s.
Butyric acid0.300.150.630.600.891.760.174**n.s.n.s.
Iso-valeric acid0.060.040.130.180.140.300.036n.s.n.s.n.s.
Valeric acid0.010.010.040.030.150.140.018**n.s.n.s.
Caproic acid0.020.020.040.090.120.090.015*n.s.n.s.
BCFA0.180.220.320.530.390.480.068n.s.n.s.n.s.
Total14.0712.2924.6027.8230.6052.975.496n.s.n.s.n.s.
Percentage of distribution (%)
Acetic acid94.7a95.25a93.77a93.54a90.81a90.07b0.543***n.s.n.s.
Propionic acid2.953.253.924.506.025.870.363**n.s.n.s.
Butyric acid2.34a1.50b2.31a1.96a3.18a4.06a0.250**n.s.n.s.
BCFA0.180.220.320.530.390.480.068n.s.n.s.n.s.

Coefficients of total tract apparent retention of crude protein, crude ash, zinc, calcium, sodium, and phosphorus from hens fed with different wheat bran (WB) levels and oil supplementations. Data represent LS means and standard error of means (SEM), as well as significance levels of the influence of WB, period, and oil supplementation, including their interactions (WB × Oil; WB × Period; Oil × period; WB × Oil × Period).Tabelle 2. Koeffizienten der Gesamttraktretention von Rohprotein, Rohasche, Zink, Kalzium, Natrium und Phosphor von Legehennen, die mit ansteigenden Gehalten von Weizenkleie sowie verschiedenen pflanzlichen Ölen gefüttert wurden. Die Daten zeigen die LS-Mittelwerte, den Standardfehler der Mittelwerte und das Signifikanzlevel von Weizenkleie, Öl, Periode sowie deren Interaktionen.

Coefficients of total tract apparent retention
Crude proteinCrude ashZincCalciumSodiumPhosphorus
Wheat bran
0 g/kg45.04a54.3121.19a61.0361.2531.15
75 g/kg43.31a50.9617.00a63.6461.4628.24
150 g/kg36.68b45.409.47b57.9160.2926.15
Vegetable Oil
Rapeseed oil41.9451.4314.4462.6961.2227.97
Sunflower oil41.4249.0217.3459.0360.7729.06
Period
Days 4–942.0250.7717.7362.2169.4435.28a
Days 16–2141.3449.6814.0559.5052.5521.75b
p-Value
WB**n.s.***n.s.n.s.n.s.
Oiln.s.n.s.n.s.n.s.n.s.n.s.
Periodn.s.n.s.n.s.n.s.******
WB × Oiln.s.n.s.*n.s.n.s.n.s.
WB × Periodn.s.n.s.n.s.n.s.**n.s.
Oil × Periodn.s.n.s.*n.s.n.s.*
Oil × Period × WBn.s.n.s.n.s.n.s.n.s.n.s.
SEM0.9891.4111.3651.6261.8871.943

Coefficients of total tract apparent digestibility of dry matter, starch, ether extract, and neutral detergent fiber from hens fed with different wheat bran (WB) levels and oil supplementations. Data represent LS means and standard error of means (SEM), as well as significance levels of the influence of WB, period, and oil supplementation, including their interactions (WB × Oil; WB × Period; Oil × Period; WB × Oil × Period).Tabelle 1. Koeffizienten der Gesamttrakt-Verdaulichkeit von Trockenmasse, Stärke, Fett und Neutral-detergent Fiber von Legehennen, die mit ansteigenden Gehalten von Weizenkleie sowie verschiedenen pflanzlichen Ölen gefüttert wurden. Die Daten zeigen die LS-Mittelwerte, den Standardfehler der Mittelwerte und das Signifikanzlevel von Weizenkleie, Öl, Periode sowie deren Interaktionen.

Coefficients of total tract apparent digestibility
Dry matterCrude starchEther extractNeutral detergent fiber
Wheat bran
0 g/kg75.83a99.11a84.0036.20
75 g/kg71.76b98.47a84.4538.79
150 g/kg67.47c97.66b85.0438.24
Vegetable oil
Rapeseed oil71.6298.3384.2337.287
Sunflower oil71.7598.5084.7738.197
Period
Days 4–971.9998.4084.2541.36a
Days 16–2171.3898.4384.7434.13b
p-Values
WB******n.s.n.s.
Oiln.s.n.s.n.s.n.s.
Periodn.s.n.s.n.s.***
WB × Oiln.s.n.s.**n.s.
WB × Periodn.s.n.s.n.s.n.s.
Oil × Periodn.s.n.s.n.s.n.s.
Oil × Period × WBn.s.n.s.n.s.n.s.
SEM0.6450.1180.3651.137
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Life Sciences, Ecology, other