scholarly journals Improved prediction of meat and bone meal metabolizable energy content for ducks through in vitro methods

2012 ◽  
Vol 91 (8) ◽  
pp. 1854-1859 ◽  
Author(s):  
R.A. Garcia ◽  
J.G. Phillips ◽  
O. Adeola
Keyword(s):  
Energy Content ◽  
Metabolizable Energy ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
In Vitro Methods

PSI-9 Digestibility and metabolizable energy content of supplemented diets based on native shrubs and buffelgrass for small ruminants in northeastern Mexico

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 275-276
Author(s):  
Víctor Manuel Perrusquía Tejeida ◽  
Nydia Corina Vásquez Aguilar ◽  
Humberto González Rodríguez ◽  
Hugo Bernal Barragán ◽  
Fernando Sánchez Dávila ◽  
...  
Keyword(s):  
Energy Content ◽  
Artificial Saliva ◽  
Small Ruminants ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Acacia Farnesiana ◽  
Dry Matter Digestibility ◽  
Northeastern Mexico ◽  
Native Shrubs

Abstract The objective of this study was to evaluate the effect of supplementing 10% of sorghum grain (SG), soybean meal (SBM) or dried citrus pulp (DCP) upon dry matter digestibility (DMD), organic matter digestibility (OMD), and metabolizable energy content (ME) of diets based on dried leaves of two shrub species (Acacia farnesiana and Acacia rigidula) and one grass (Cenchrus ciliaris) browsed by small ruminants. Twelve experimental diets were elaborated using three forage sources: C. ciliaris, A. farnesiana and A. rigidula and evaluated either alone (0% supplementation) or supplemented with 10% of SG (9.0% CP, 22.3% NDF), SBM (42.8% CP, 16.3% NDF) or DCP (4.9% CP, 19.1% NDF). In vitro DMD (Daisy incubator, ANKOM) at 48 h, and in vitro gas production (GP, in calibrated 100 mL glass syringes) at 24 h, were determined by incubating samples in an inoculum prepared by using rumen liquor of two rumen fistulated sheep and artificial saliva in a 1:4 ratio. OMD and ME content were calculated from the gas production, crude protein, ash, and ether extract content. Data were evaluated according to a 3 x 4 factorial experiment. There were no significant (P > 0.05) forage source x supplement interaction effects. Leaves of A. farnesiana had higher (P < 0.05) DMD (64%), GP (26 mL), ME (1910 kcal ME/kg DM), and OMD (53%) than other forages (mean 47% DMD, 17 mL GP, 1232 kcal ME/kg DM, and 39% DMO). Supplements increased (P < 0.05) DMD (average +8%), but only DCP increased (P < 0.05) the GP (+23%) of evaluated forages. Leaves of A. farnesiana had higher DMD (P < 0.05; 64%). There were no effects (P >0.05) of the 10% added supplements in ME content or DMO. In conclusion, leaves of A. farnesiana and DCP are valuable sources of nutrients and energy for small ruminants in northeastern Mexico.

scholarly journals Effect of crude glycerol on in-vitro ruminal fermentation kinetics

2014 ◽  
Vol 15 (1) ◽  
pp. 172-181 ◽  
Author(s):  
Vanessa Peripolli ◽  
Ênio Rosa Prates ◽  
Júlio Otávio Jardim Barcellos ◽  
Cássio André Wilbert ◽  
Cláudia Medeiros Camargo ◽  
...  
Keyword(s):  
Alternative Energy ◽  
Crude Glycerol ◽  
Energy Content ◽  
Metabolizable Energy ◽  
Neutral Detergent Fiber ◽  
Biodiesel Production ◽  
In Vitro Digestibility ◽  
Ruminal Fermentation

The interest in using crude glycerol in animal feeding has reemerged due to its increasing availability and favorable price resulting from the expansion of biofuel industry. The objective of the present study was to evaluate the effects of substituting corn for crude glycerol at different levels in the diet on ruminal fermentation using in-vitro true digestibility parameters. The experimental treatments consisted of substituting corn for liquid crude glycerol (0; 4; 8 and 12%) in dry matter basis. Diets consisted of 60% alfalfa hay and 40% corn and glycerol substituted the corn in the diet. In addition to the 48 hours traditionally applied in digestibility assays, different in-vitro digestibility times were used (0; 4; 8; 16; 48, 72 and 96 hours) in order to study digestion kinetics. The dietary corn substitution for increasing crude glycerol levels did not affect ammonia nitrogen content, metabolizable energy content, in-vitro digestibility of organic matter and neutral detergent fiber, nor ruminal degradation parameters. However this by-product of biodiesel production may be tested in-vivo as an alternative energy feedstuff in ruminant diets.

scholarly journals In vitro solubility of meat and bone meal protein with different pepsin concentrations

2000 ◽  
Vol 30 (3) ◽  
pp. 489-492 ◽  
Author(s):  
Cláudio Bellaver ◽  
Dirceu Luís Zanotto ◽  
Antônio Lourenço Guidoni ◽  
Claudete Hara Klein
Keyword(s):  
Crude Protein ◽  
Protein Digestibility ◽  
Enzyme Concentration ◽  
Asymptotic Model ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Meal Protein ◽  
Protein Origin

In vitro protein digestibility of protein sources has been correlated with in vivo digestibility values. However, factors like protein origin, enzyme used and its concentration, pH and processing have been related with the significance of the correlation between the estimates. To address only the enzyme concentration factor, this paper had the objective of testing pepsin at 0.2, 0.02, 0.002 and 0.0002% using the standard AOAC (1995) procedure. Two meat and bone meals (MBM) with low and high crude protein (CP) content were used to determine the coefficient of solubility of CP in pepsin and HCl (CSCPPEPH). Centrifugation was used to establish the nitrogen (N) in the soluble phase, instead of filtration and analysis of N in the residue. The variance analysis and a non-linear asymptotic model were adjusted. The CSCPPEPH under different pepsin concentrations for the two MBM showed higher solubility discrimination with low pepsin concentration. The level of 0.0002% pepsin is better to predict the CP soluble in MBM. This finding implies the assumption that 0.2% pepsin found in the AOAC is not correct for the purpose of determining the range of solubility in high and low CP content in MBM.

Determination of the yield characteristics and in vitro digestibility of barley forage harvested in different vegetation periods

2016 ◽  
Author(s):  
Mehtap Guney ◽  
Cagri Kale ◽  
Duran Bolat ◽  
Suphi Deniz
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Energy Content ◽  
Vegetation Period ◽  
Metabolizable Energy ◽  
Mature Stage ◽  
In Vitro Digestibility ◽  
Net Energy ◽  
Seed Formation

This study planned to determine the differences among nutrient composition, in vitro digestibility, energy content, digestible dry matter and organic matter yields of barley forage harvested at three different stages of maturity. Each vegetation period (heading stage, seed formation stage and mature stage) was randomly assigned to 5 replication from 1 square meter area and fifteen samples were harvested in total. DM, ADF (p<0.001), and NDF (p<0.05) contents were different in each stages of barley forage. In vitro dry matter (IVDMD), organic matter digestibility (IVOMD), metabolizable energy (ME), and net energy for lactation (NEL) values of samples were determined to be lower than the other two stages at the mature stage (p<0.05). Yield parameters of barley were significantly affected by vegetation period (p<0.001). It can be concluded that all three vegetation period had significantly higher digestibility. Digestible DM, OM and energy yields were higher when harvested at the mature stage of vegetation.

Metabolizable energy content of feeds based on 24 or 48h in situ NDF digestibility and on in vitro 24h gas production methods

2011 ◽  
Vol 170 (3-4) ◽  
pp. 182-191 ◽  
Author(s):  
Franco Tagliapietra ◽  
Mirko Cattani ◽  
Hanne H. Hansen ◽  
Ida K. Hindrichsen ◽  
Lucia Bailoni ◽  
...  
Keyword(s):  
Energy Content ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Production Methods

scholarly journals EQUATIONS TO PREDICT THE METABOLIZABLE ENERGY OF MEAT AND BONE MEAL FOR GROWING PIGS

2015 ◽  
Vol 39 (6) ◽  
pp. 565-573 ◽  
Author(s):  
Ricardo Araújo Castilho ◽  
Paulo Cesar Pozza ◽  
Newton Tavares Escocard de Oliveira ◽  
Cleiton Pagliari Sangali ◽  
Carolina Natali Langer ◽  
...  
Keyword(s):  
Block Design ◽  
Basal Diet ◽  
Growing Pigs ◽  
Metabolizable Energy ◽  
Good Prediction ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Randomized Block Design ◽  
Dependent Parameter ◽  
Energetic Composition

ABSTRACT The prediction of metabolizable energy (ME) of meat and bone meal (MBM) for pigs is an interesting tool, however, used models to predict these values must be validated in order to garantee higher precision. The aim of this study was to determine the chemical and energetic composition of different types of MBM for pigs and to adjust and validate models to better predict the ME based on the chemical composition. Thirty-two barrows, averaging an initial weight of 26.75 ± 1.45 kg, were individually allotted in a randomized block design with eight treatments and four replicates. The treatments consisted of seven types of MBM that replaced 20% of the basal diet. A stepwise procedure was the statistical procedure used to adjust the prediction equations and the ME was the dependent parameter. The validation of the adjusted models was performed using an independent databank of chemical and energetic composition of theBrazilian and international MBM. The metabolizable energy of different meat and bone meals ranged from 1645 to 2645 kcal kg-1. The equations that provide a good prediction of metabolizable energy of meat and bone meal for swine in Brazil are EM1 = -4233.58 + 0.4134GE + 72CP + 89.62ash - 159.06Ca; EM2 = 2087.49 + 0.3446GE + 31.82ash - 189.18Ca; EM3 = 2140.13 + 0.3845GE - 112.33Ca; EM4 = -346.58 + 0.656GE; EM5 = 3221.27 + 178.96fat - 76.55ash; and EM6 = 5356.45 - 84.75ash.

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