Influence Of Biogas Residue Feed On Pig Fattening Perforemnt And Composition Of Intramuscular Fatty Acid And Muscle Fiber Type

18 heads Duroc×Landrace×Yorkshire hybrid pigs were used as test material in this experimental, and were divided into two test groups and one control group, then to study the influce on fattening effect, composition and content of intramuscular fatty acid by adding certain proportion biogas residue in diet, so as to supply certain theoretical basis for whether biogas residue as an unconventional feed resources could feed pig.1. Influence on finishing effect by adding biogas residue in dietAdding certain biogas residue in diet can decrease feed cost. The economic benefit of adding 3.00%, 7.00%, 10.00% biogas residue in pig diet at 20~35kg, 35~60kg, 60~90kg three stage are the best, adding 2.00%, 4.00%, 8.00% biogas residue in pig diet takes second place. Adding biogas residue of these experimental level in pig diet have decreased daily gain, and prolonged finishing period, but still can complete task of unfolding three batches of finishing pig in one year.2. Influence on composition and content of intramuscular fatty acid by adding biogas residue in pig diet2.1 Influence on composition and content of intramuscular fatty acid in longissimus drosi by adding biogas residue in pig dietAdding biogas residue of experimental level in pig diet will not produce adverse influence on longissimus dorsi from the composition and content of individual fatty acids, but the trend of the content of monounsaturated fatty acid will be decreasing and polyunsaturated fatty acid will be increasing could not be excluded by adding excessive biogas residue in diet.2.2 Influence on composition and content of intramuscular fatty acid in biceps femoris by adding biogas residue in pig dietThe results shows that, the content of monounsaturated fatty acid, polyunsaturated fatty acid, nsaturated fatty acid and saturated fatty acid in biceps femoris of control group and two test groups all have no significant obvious difference, so we can predict that adding biogas residue of experimental level in pig diet will not produce adverse influence on biceps femoris from the composition and content of fatty acid.2.3 Studying the influence on pork quality by adding biogas residue in diet from fatty acidThe results shows that, adding biogas residue of experimental level in pig diet have no vibious influence on the content of individual fatty acids in longissimus drosi and biceps femoris, so we can predict that adding biogas residue of experimental level in pig diet will not produce adverse influence on pork quality from the composition and content of individual fatty acid; but we must pay attention to the trend of content of monounsaturated fatty acid will be decreasing and polyunsaturated fatty acid will be increasing by adding biogas residue of testⅡgroup level , thus lead to the risk of the quality of longissimus drosi becoming worse.3. Influence on muscle fiber type of longissimus dorsi by adding biogas residue in dietAdding biogas residue of experimental level in diet will not bring obvious influence on muscle fiber type of longissimus dorsi.