European Academic Research ISSN 2286-4822
ISSN-L 2286-4822
Impact Factor: 3.4546 (UIF)
DRJI Value : 5.9 (B+)
Article Details :
Article Name :
Effect of adding linseed oil on in vitro gas and methane production and some fermentation characteristics
Author Name :
A. H. Kuttar, Majid Hamid Rashid, Ashwaq Abd Ali
Publisher :
Bridge Center
Article URL :
Abstract :
This experiment was carried out in animal feeding laboratories in the Animal Production Department of the Faculty of Agriculture, University of Baghdad / Jadriya for the period from 1/12/2016 to 1/5/2017, where food supplements were used with different percentages of Linseed oil. 0,70,140,280 µl / kg dry matter to a mixture of concentrated feed and coarse feed to study its effect on total gas production and methane gas and fermentation properties ((pH, volatile fatty acid ratios (Acetic, propionic and butyric), ammonia nitrogen ratio)). Results: 1-. Using the gas production technology in the laboratory, a significant reduction in the total production of gas and methane in T2, T3, containing 70,140 µl / kg dry material from LO oil at incubation time after 12 hours in vitro compared to T1and T4 (supplemented with 280 µl / kg dry matter of LO oil). After 24 hours of in vitro incubation, T2 treatment was significantly reduced (p?0.01) in total gas production compared to T3 and T4, For the production of methane, it was significantly lower (p?0.01) for T2 compared to T3 and T4 respectively. The total volume of gas after 48 hours of in vitro incubation was significantly decreased (p?0.01) for T2, T3 and T4 compared to the control treatment , the same T6 and T7 were significantly lower (p?0.01) in methane compared to T2 and after 72 hours of laboratory incubation, T2 and T4 showed a significant decrease (p?0.01) in total gas production while T6 was central between them and there were no differences In the size of methane in the models withdrawn after 72 hours of in vitro incubation. 2- For fermentation characteristics, the results showed the following: 2-1 There were significant differences (P?0.01) in the pH values of the withdrawn samples after 12 hours of in vitro incubation compared to the control treatment, the T4 was significantly reduced (P?0.01) in the pH values in the withdrawn models after 24 and after 48 and 72 hours of laboratory incubation. The T4 was significantly lower (P?0.01) in the pH value compared to T2 and T3 respectively. 2-2 As for the concentration of ammonia nitrogen, The results showed that there were significant differences (P?0.01) between the LO oil added to the hay in the concentration of ammonia nitrogen where T2, T3 and T4 containing LO were significantly reduced (P?0.01) in nitrogen concentration Ammonia compared to T1 treatment of the withdrawn samples after 12 and 24 hours of laboratory incubation. The results also showed a significant decrease in (p<0.01) in the ammonia nitrogen concentration of T3 and T4 for the withdrawn samples after 48 and 72 hours of laboratory incubation compared to T2 treatment. 2-3 The results showed that there were significant differences (p<0.01) between the LO oil of the hay in the concentration of volatile fatty acids (acetic acid, butyric acid, propionic), where T2 and T3 were significantly lower (p<0.01) 12 days of incubation in vitro compared to T4 treatment, while no significant differences in acid concentration were observed 24 hours of laboratory incubation. T2 was significantly lower (p<0.01) in acetic acid concentration compared to T3 and T4 respectively, There were significant differences(p<0.01) in acid concentration In the samples withdrawn after 72 hours of in vitro incubation. As for propionic acid, LO (T5) showed a significant reduction(p<0.01) in the concentration of propionic acid after 12 in vitro incubation compared with T1 while T3 and T4 were significant(p<0.01) The concentration of propionic acid after 24 and 48 hours of in vitro incubation, while the concentration of acid and high morale (p<0.01) in the treatment T2 compared with the treatment T4, and the results showed no significant differences of LO oil treatments in the concentration of butyric acid has 12 and 24 hours incubation in the laboratory, Results showed a high morale (p<0.01) concentration Butyric acid for treatment T2 compared to control treatment after 48 and 72 hours of incubation laboratory.
Keywords :
linseed oil, in vitro gas and methane production, fermentation characteristics

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