EFFECT OF ZATARIA MULTIFLORA ESSENTIAL OILS ON IN VITRO GAS PRODUCTION AND RUMEN FERMENTATION IN DIETS CONTAINING DIFFERENT STARCH SOURCES AND FAT TYPES

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MOHAMMADIZAD T.; FATAHNIA F.; AZARFAR A.; KHATIBJOO A.; Taasoli G.

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Journal: JOURNAL OF RUMINANT RESEARCH Year:2015 | Volume:3 | Issue:3 Page(s): 37-58

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Title

EFFECT OF ZATARIA MULTIFLORA ESSENTIAL OILS ON IN VITRO GAS PRODUCTION AND RUMEN FERMENTATION IN DIETS CONTAINING DIFFERENT STARCH SOURCES AND FAT TYPES

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ZATARIA MULTIFLORAQ2

STARCH SOURCEQ2

FAT TYPEQ2

GAS PRODUCTION KINETICQ1

Abstract

Background and objectives: The effect of essential oils on in vitro gas production and rumen fermentation has been studied but there are few experiments about the interaction between essential oils and diet type. This experiment was conducted to study the effect of ZATARIA MULTIFLORA essential oil (ZMEO) in diets containing different sources of starch (different degradation rate) and different sources of fat on in vitro GAS PRODUCTION KINETICs, ruminal digestion and fermentation parameters.Materials and methods: Experimental diets in first experiment consist of: 1- corn based diet, 2- wheat and barley based diet.3- first diet with monensin, 4- second diet with monensin, 5- first diet with ZMEO, 6- second diet with ZMEO and in second experiment experimental diets consist of: 1- diet containing calcium salts of fatty acids, 2- diet containing soybean oil, 3- first diet with monensin, 4- second diet with monensin, 5- first diet with ZMEO and 6- second diet with ZMEO. Gas production (GP), pH, ammonia-N concentration, apparent in vitro dry matter digestibility (AIVDMD) and true in vitro organic matter digestibility (TIVOMD) were measured. Gas production parameters, fermentation parameters and metabolisable energy (ME) were estimated.Results: In both experiments ZMEO and monensin significantly decreased the gas production after 24 h of incubation (GP24), gas production potential, VFA concentration, ammonia-N concentration and ME (P<0.05). The results of first experiment showed that both of ZMEO and monensin significantly decreased the rate of gas production (RmaxS), microbial biomass production (MBP), apparent in vitro dry matter digestibility (AIVDMD) and true in vitro organic matter digestibility (TIVOMD) (P<0.05). In comparison with monensin, ZMEO significantly decreased GP24, potential gas production and the time at which the maximum of substrate degradation is reached (TRmaxS), MBP, AIVDMD, TIVOMD and VFA (P<0.05) and increased half life of gas production and pH (P<0.05). ZMEO significantly increased potential of gas production, maximum gas production per hour, AIVDMD, TIVOMD and MBP and reduced efficiency of MBP and pH in diet containing corn starch in comparison to diets containing wheat and barley starch.Results of the second experiment showed that both of ZMEO and monensin significantly decreased maximum gas production per hour and half life of gas production (P<0.05). Both of ZMEO and monensin significantly increased the time at which maximum rate of gas production is reached (TRmaxG) and rate of gas production (P<0.05). In comparison with monensin, ZMEO significantly increased GP24, AIVDMD, VFA, rate of gas production, maximum gas production per hour and time at which maximum rate of gas production is reached (TRmaxG). None of the in vitro gas production parameters and fermentation were influenced by addition of ZMEO on the different fat sources in the diets (P>0.05).Conclusion: It is concluded that ZMEO changed the ruminal fermentation and digestion and its effect depending on substrate type.

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APA: Copy

MOHAMMADIZAD, T., FATAHNIA, F., AZARFAR, A., KHATIBJOO, A., & Taasoli, G.. (2015). EFFECT OF ZATARIA MULTIFLORA ESSENTIAL OILS ON IN VITRO GAS PRODUCTION AND RUMEN FERMENTATION IN DIETS CONTAINING DIFFERENT STARCH SOURCES AND FAT TYPES. JOURNAL OF RUMINANT RESEARCH, 3(3), 37-58. SID. https://sid.ir/paper/244113/en

Vancouver: Copy

MOHAMMADIZAD T., FATAHNIA F., AZARFAR A., KHATIBJOO A., Taasoli G.. EFFECT OF ZATARIA MULTIFLORA ESSENTIAL OILS ON IN VITRO GAS PRODUCTION AND RUMEN FERMENTATION IN DIETS CONTAINING DIFFERENT STARCH SOURCES AND FAT TYPES. JOURNAL OF RUMINANT RESEARCH[Internet]. 2015;3(3):37-58. Available from: https://sid.ir/paper/244113/en

IEEE: Copy

T. MOHAMMADIZAD, F. FATAHNIA, A. AZARFAR, A. KHATIBJOO, and G. Taasoli, “EFFECT OF ZATARIA MULTIFLORA ESSENTIAL OILS ON IN VITRO GAS PRODUCTION AND RUMEN FERMENTATION IN DIETS CONTAINING DIFFERENT STARCH SOURCES AND FAT TYPES,” JOURNAL OF RUMINANT RESEARCH, vol. 3, no. 3, pp. 37–58, 2015, [Online]. Available: https://sid.ir/paper/244113/en

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