IntInternational Conference on Food, Agriculture and Animal Sciences, Antalya, Türkiye, 23 - 26 Kasım 2023, ss.473-479
This study was aimed to determine the in vitro methane production levels of different carbohydrate sources in dogs using the in vitro fermentation technique. It was determined that sugar beet pulp did not produce methane in the first 12 hours, but methane production in the 24th hour. It was determined that methane production increased in te 24th hour by heat-pressure treatment of sugar beet pulp. The effect of heat-pressure treatment, dog faecal inoculum of different ages and interaction on the methane production of tomato pomace and corn bran in two different incubations of 12 and 24 hours was found to be insignificant (P>0.05). It was determined that the methane level in the total gas produced in wheat bran during 12 (P<0.001) and 24 (P=0.001) hour incubations increased significantly with the application of heat-pressure treatment. It was determined that the heat-pressure treatment applied to the feed had a significant effect on the methane production of barley flour in the 12th and 24th hours of gas production (P<0.05). Methane production in 24-hour gas production of corn flour also increased significantly with the heat-pressure process. Again, age had a significant effect on the methane production of corn flour at the 24th hour, and it was determined that geriatric dog faecal inoculum produced higher methane (P = 0.031). No methane was detected in the gas in the first 12 hours of wheat flour that was not subjected to heat-pressure treatment, but it was determined that it produced 0.5-0.6% methane in fermentations using 2- and 8-year-old dog faecal inoculum when heat-pressure was applied. Again, it was determined that age did not have a significant effect on the 24th hour methane production of rice flour and corn flour (P>0.05). It was determined that heat-pressure treatment had an increasing effect on the 24th hour methane production of oat flour (P = 0.017). It was determined that potato flour also changed with the application of heat-pressure treatment to the feed and dog faecal inoculum of different ages on methane production at the 24th hour (P = 0.027). As a result, it has been revealed that in vitro methane production in dogs varies according to the incubation time and extrusion process of starch sources and structural carbohydrate sources.