Journal of Animal Physiology and Animal Nutrition, ( ISI ), Volume (98), No (6), Year (2014-12) , Pages (1-9)

Title : ( Effects of essential oils, yeast culture and malate on rumen fermentation, blood metabolites, growth performance and nutrient digestibility of Baluchi lambs fed high-concentrate diets )

Authors: mohammad malekkhahi , Abdol Mansour Tahmasbi , Abbas Ali Naserian , Mohsen Danesh Mesgaran , J. L. Kleen , A. A. Parand ,

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The experiment was conducted to evaluate the effects of dietary supplementation with a mixture of essential oils (MEO), yeast culture (YC) and malate on performance, nutrient digestion, rumen fermentation and blood metabolites of lambs fed high-concentrate growing diets. For this purpose, twenty Baluchi lambs (17.3  0.5 kg body weight and 3 months old) were randomly assigned to four dietary treatments in a completely randomized design with five lambs per treatment. The treatment groups were as follows: (i) control: basal diet without any additive, (ii) basal diet plus 400 mg/day MEO (thymol, carvacrol, eugenol, limonene and cinnamaldehyde), (iii) basal diet with 4 g/day YC and (iv) basal diet plus 4 g/day malate. No differences between the dietary treatments were observed in dry matter intake, average daily gain or feed conversion ratio (p > 0.05). Compared with control and malate treatment, lambs fed MEO and YC had an improved crude protein digestibility (p < 0.05). Yeast culture significantly increased (p > 0.05) cell wall digestibility compared to the other treatments. No differences were observed between treatments with respect to nitrogen balance or ruminal pH and ammonia concentrations (p > 0.05). No differences were observed between treatments with respect to ruminal total volatile fatty acid concentration and molar proportions of acetate, butyrate and valerate. Molar proportion of propionate was higher (p < 0.05) for YC and malate compared to control and MEO. Plasma glucose concentration was higher (p < 0.05) in lambs fed YC and malate than in lambs fed the control or the MEO diet. Blood concentration of triglycerides significantly decreased when feeding the MEO and YC diets (p < 0.05). It was concluded that YC may be more useful as a feed additive for manipulation of rumen fermentation in lambs fed with high-concentrate diets than MEO and malate, because YC enhanced crude protein and cell wall digestibility, ruminal molar proportion of propionate and plasma glucose concentration.

Keywords

, lamb, digestibility, mixture essential oils, yeast culture,
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@article{paperid:1044778,
author = {Malekkhahi, Mohammad and Tahmasbi, Abdol Mansour and Naserian, Abbas Ali and Danesh Mesgaran, Mohsen and J. L. Kleen and A. A. Parand},
title = {Effects of essential oils, yeast culture and malate on rumen fermentation, blood metabolites, growth performance and nutrient digestibility of Baluchi lambs fed high-concentrate diets},
journal = {Journal of Animal Physiology and Animal Nutrition},
year = {2014},
volume = {98},
number = {6},
month = {December},
issn = {0931-2439},
pages = {1--9},
numpages = {8},
keywords = {lamb; digestibility; mixture essential oils; yeast culture; malate},
}

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%0 Journal Article
%T Effects of essential oils, yeast culture and malate on rumen fermentation, blood metabolites, growth performance and nutrient digestibility of Baluchi lambs fed high-concentrate diets
%A Malekkhahi, Mohammad
%A Tahmasbi, Abdol Mansour
%A Naserian, Abbas Ali
%A Danesh Mesgaran, Mohsen
%A J. L. Kleen
%A A. A. Parand
%J Journal of Animal Physiology and Animal Nutrition
%@ 0931-2439
%D 2014

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