Protein sources influence both apparent digestibility and gastrointestinal evacuation rate in juvenile slipper lobster (Thenus australiensis)

2021 ◽  
pp. 111121
Author(s):  
Andrea Wirtz ◽  
Chris G. Carter ◽  
M. Basseer Codabaccus ◽  
Quinn P. Fitzgibbon ◽  
Ashley T. Townsend ◽  
...  
Keyword(s):  
Apparent Digestibility ◽  
Protein Sources ◽  
Evacuation Rate

scholarly journals Apparent digestibility of ingredients in diets for Salminus brasiliensis

2008 ◽  
Vol 43 (2) ◽  
pp. 271-274 ◽  
Author(s):  
Luís Gustavo Tavares Braga ◽  
Ricardo Borghesi ◽  
José Eurico Possebon Cyrino
Keyword(s):  
Amino Acids ◽  
Crude Protein ◽  
Nutritional Value ◽  
Apparent Digestibility ◽  
Corn Gluten Meal ◽  
Protein Sources ◽  
Corn Gluten ◽  
Gross Energy ◽  
Salminus Brasiliensis ◽  
Spray Dried

The objective of this work was to determine the nutritional value of different protein sources for "dourado" (Salminus brasiliensis). Thirty juveniles per group (33.51±1.4 g) were hand fed on a reference diet (70%) added of tested ingredients (30%) and chromium oxide III (0.1%). Apparent digestibility coefficients of the gross energy (ADC GE), crude protein (ADC CP) and amino acids of the tested ingredients were evaluated. Corn gluten meal yielded the best results for ADC GE and ADC CP (95.7 and 96.9%, respectively) amongst plant ingredients. Spray-dried blood meal yielded the best values of ADC GE and ADC CP amongst animal ingredients (94.1 and 96.3%, respectively). Wheat bran yielded poorest ADCs coefficients (77 for ADC GE and 88.2% for ADC CP).

scholarly journals Requirement of fattening pigs for gross and digestible lysine in feeds with easily and poorly digestible protein.

1984 ◽  
Vol 32 (1) ◽  
pp. 23-32
Author(s):  
G.J. Borggreve ◽  
W.A.G. Veen
Keyword(s):  
Crude Protein ◽  
Lysine Content ◽  
Apparent Digestibility ◽  
Feeding Trial ◽  
Protein Requirement ◽  
Protein Sources ◽  
Daily Rate ◽  
Livestock Feeding ◽  
Digestible Protein ◽  
Fattening Pigs

In a feeding trial with 96 barrows and gilts and based on a 2 x 3 experimental design, feeds containing poorly digestible protein sources were compared with feeds containing easily digestible protein sources, at lysine levels of 6.9, 7.5 and 8.1 g/kg. In the liveweight range from 30 to 70 kg daily rate of gain on both types of diet was higher with more lysine. From 30 to 110 kg, rate of gain was proportional to lysine content only for the diet with poorly digestible protein. Requirement for gross lysine seemed to be 7.0 to 7.5 g/kg for feed with easily digestible protein and at least 7.9 g/kg for that with poorly digestible protein. In a digestibility trial with pigs weighing about 30 kg, apparent digestibility of feeds with lowest and highest lysine levels was determined. Digestibility coefficient of crude protein was 7 to 12 units lower than figures given in the CVB table (Central Bureau on Livestock Feeding in the Netherlands). Digestibility coefficients for lysine were only marginally lower than for crude protein. On the basis of digestibility coefficients determined for lysine, it was possible to calculate the requirement for digestible lysine for the pigs used in the feeding trial. Results showed 5.3 to 5.7 g/kg for the diet containing easily digestible protein, and at least 5.6 g/kg for that with poorly digestible protein. (Abstract retrieved from CAB Abstracts by CABI’s permission)

EVALUATIONS OF RAPESEED AND SOYBEAN MEALS AS PROTEIN SOURCES FOR SWINE: APPARENT DIGESTIBILITIES OF AMINO ACIDS

1970 ◽  
Vol 50 (3) ◽  
pp. 521-528 ◽  
Author(s):  
C. Y. CHO ◽  
H. S. BAYLEY
Keyword(s):  
Amino Acids ◽  
Liquid Chromatography ◽  
Polyethylene Glycol ◽  
Soybean Meal ◽  
Feed Intake ◽  
Rapeseed Meal ◽  
Gas Liquid Chromatography ◽  
Apparent Digestibility ◽  
Balance Study ◽  
Protein Sources

Semi-purified diets containing either soybean or rapeseed meal were fed to four barrow pigs of 60-kg liveweight in balance study cages. Comparison of feed intake and feces and urine output showed that the apparent digestibilities and biological values of the soybean meal-containing diet were 87.8 and 84.0%, respectively; the corresponding values for the rapeseed meal-containing diet were 78.4 and 78.9%. Samples of feed and feces were hydrolyzed and the n-propyl N-acetyl esters of the amino acids were prepared and separated by gas-liquid chromatography. Apparent digestibilities of the amino acids in the two protein sources were calculated; for soybean meal the values ranged between 85 and 92%, with the exception of methionine, for which the value was only 79%; the value for lysine was 90%. The corresponding values for rapeseed meal were 74 and 86%, with values of 87% for both methionine and lysine. An attempt to use polyethylene glycol as a digestion indicator failed, because rapeseed meal appeared to contain material which interfered with the development of turbidity; however, for the soybean meal-containing diet there were no significant differences between the apparent digestibility values determined with the indicator and those determined using total feces collection.

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