Chemical composition, in vitro dry matter digestibility and in vitro gas production of five woody species browsed by Matebele goats (Capra hircus L.) in a semi-arid savanna, Zimbabwe

The objective of this research was to investigate the effect of Aspergillus oryzae on fermentation of mixture of rumen contents and jackfruit peel on in vitro gas production and digestibility. The method used in this study was an experiment using a randomized block design (RBD) of 4 treatments and 3 replications. The treatments including of T0 = 50% rumen contents + 50% jackfruit peel, T1 = 40 % rumen contents + 60% jackfruit peel + 0,4% Aspergillus oryzae, T2 = 30% rumen contents + 70% jackfruit peel + 0,4% Aspergillus oryzae, T3 = 20% rumen contents + 80% jackfruit peel + 0,4% Aspergillus oryzae. Variables observed were gas production, dry matter digestibility (DMD), and organic matter digestibility (OMD). Data were analyzed by using Analysis of Variance (ANOVA) from Randomized Block Design, if there were significant effect between the treatments then tested with least significant different (LSD). The result showed that fermentation of mixture of rumen contents and jackfruit peel have highly significant effect (P<0.01) on gas production, and significant effect (P<0.05) on DMD and OMD. Gas production, DMD and OMD of fermented mixture of rumen contents and jackfruit peel are higher than control without fermentation. It is concluded that the higher jackfruit peels the higher gas production, DMD and OMD.

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Effects of loline-alkaloid-containing seeds or seed extract on in vitro gas production and apparent dry matter digestibility

Applied Animal Science ◽

10.15232/aas.2021-02185 ◽

2021 ◽

Vol 37 (5) ◽

pp. 583-588

Author(s):

K.A. Froehlich ◽

M. Beck ◽

A.W. Greer

Keyword(s):

Dry Matter ◽

Gas Production ◽

Seed Extract ◽

Dry Matter Digestibility ◽

In Vitro Gas Production

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Ruminal in vitro gas production, dry matter digestibility, methane abatement potential, and fatty acid biohydrogenation of six species of microalgae

Canadian Journal of Animal Science ◽

10.1139/cjas-2015-0141 ◽

2016 ◽

Vol 96 (3) ◽

pp. 354-363 ◽

Cited By ~ 10

Author(s):

U.Y. Anele ◽

W.Z. Yang ◽

P.J. McGinn ◽

S.M. Tibbetts ◽

T.A. McAllister

Keyword(s):

Fatty Acid ◽

Linolenic Acid ◽

Lipid Content ◽

Dry Matter ◽

Gas Production ◽

Total Carbohydrate ◽

Freshwater Microalgae ◽

Dry Matter Digestibility ◽

In Vitro Gas Production

This study evaluated the composition, digestibility [dry matter digestibility (DMD)], CH4 abatement potential, and fatty acid biohydrogenation of six species of microalgae. Lipid content ranged from 115 g kg−1 dry matter (DM) (Scenedesmus sp. AMDD) to 361 g kg−1 DM (Tetracystis sp.), while Scenedesmus sp. AMDD had the highest carbohydrate (364 g kg−1 DM) and fibre content (277 g kg−1 DM). Gas production was highest (P < 0.001) for Micractinium reisseri and Chlorella vulgaris. In vitro DMD ranged from 654 g kg−1 for Scenedesmus sp. AMDD to 797 g kg−1 for Nannochloris bacillaris. Total CH4 differed (P < 0.001) among microalgae, ranging from 1.76 mL g−1 DM for Tetracystis sp. to 4.07 mL g−1 DM for M. reisseri. Nannochloropsis granulata (marine) had higher myristic, palmitoleic, and eicosapentaenoic acid levels than freshwater microalgae. Levels of α-linolenic acid were higher in Scenedesmus sp. AMDD than all other microalgae. CH4 production negatively correlated (P < 0.05) with levels of total carbohydrate, oleic, and α-linolenic acid. Despite having a lower lipid content, CH4 reductions with Scenedesmus sp. AMDD were comparable to Tetracystis sp. and N. bacillaris. Reductions in CH4 with Tetracystis sp. and N. bacillaris occurred without a decline in DMD, suggesting that overall microbial activity was not inhibited.

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PSII-5 Chemical composition, in vitro dry matter digestibility, gas production and methane emission of maintenance, growth and production diets/rations of buffaloes

Journal of Animal Science ◽

10.1093/jas/skaa278.715 ◽

2020 ◽

Vol 98 (Supplement_4) ◽

pp. 408-408

Author(s):

Uchenna Anele ◽

Sultan Singh ◽

B P Kushwaha ◽

P K Gupta ◽

S Bhattacharya

Keyword(s):

Chemical Composition ◽

Methane Production ◽

Dry Matter ◽

Chemical Constituents ◽

Gas Production ◽

Protein Fractions ◽

Mean Values ◽

Dry Matter Digestibility ◽

Structural Carbohydrate

Abstract Ten types of diets were prepared to meet the nutrient requirements of buffaloes for maintenance (MD1 to MD10), growth (GD1 to GD10) and production/lactation (PD1 to PD10). A total of 30 diets were evaluated for chemical composition, in vitro gas and methane production, and dry matter (DM) disappearance using buffalo rumen liquor. The CNCPS was used to estimate the carbohydrate and protein fractions. Protein fractions PB1 and PB2 of maintenance diets were lower (P < 0.05) than growth and production diets, while protein fractions (PB3) and Pc were (P < 0.05) higher in maintenance than in growth and production diets. Mean values of PA was (P < 0.05) higher in growth diets (136.9) than production (114.8) and maintenance diets (105.6 g/kg DM). Maintenance diets had (P < 0.05) higher structural carbohydrate contents (586.2 g/kg DM) than production diets (513.0 g/kg DM). Carbohydrate fraction (CB1) was highest (P < 0.05) in production diets (187.2 g/kg DM) followed by growth (129.5 g/kg DM) and maintenance diets (96.1 g/kg DM). In vitro gas production at different time periods (12, 24 and 48 h) was similar for maintenance (63.04, 51.98 and 48.15 ml/g DM), growth (63.83, 52.73 and 48.250) and production diets (63.51, 52.54 and 47.21 ml/g DM). Cumulative methane production was numerically lower for maintenance (28.40 ml/g DM) than growth (29.58 ml/g DM) and production diets (33.13 ml/g DM). In vitro methane production as a proportion of degraded DM (ml/g DDM and g/kg DDM) was similar for maintenance (14.21 and 29.53), growth (42.19 and 30.25) and production diets (41.26 and 29.58). Dietary chemical constituents such as EE, lignin, NDIN, ADIN and PB3 and Cc were (P < 0.05) negatively associated with methane production, while OM, NPN, SP, PA and PB1, TCHO and CB2 were positively (P < 0.05) correlated with methane production.

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