The 1 research that drops about butterfat
Butterfat is the gets ration effect the most easily part in breast of ox, sheep, normally expression is the fall of butterfat rate. Boussingault is in early rate of the butterfat when with respect to the report milker raise fed low fiber and ration of tall starch beet 1845 falls, raise feeds tall cereal ration or grinding hay or the hay that make bead all reduces butterfat to lead, carpino also try to confirm. Already proved the change of the fall of butterfat rate and rumen PH is concerned now, and add buffer can the butterfat rate that corrective expensive product causes the share falls. Revulsive milker butterfat reduces ration of product low fiber (MilkFatDepression, MFD) while, the composition of fatty acid also produces a change, and the composition such as lacteal protein and lactose does not produce a change normally. When producing MFD from the beginning the scale of fatty acid of complex short cable length decreases apparently. Feng Yanglian points out, length of catenary of the carbon in butterfat is C4 to originate to C14 and partial C16 fatty acid the synthesizes way; the others from the beginning C16 that mammary gland organizes reachs all long chain fatty acid to originate ration adipose or body store adipose. The mechanism that causes milker happening MFD about ration element already offerred a few kinds of theory, a few scholars made more detailed treatise to this. Inchoate theory has: β of? of whetstone of of appropriate Bei rising abruptly - hydroxide fourth acid lacks theory, vitamin B12/ methylic third 2 acid are academic, dextrose - insulin theory and theory of the fatty acid that return form, but these a few kinds of theory all were not accepted generally by international academia. The theory of Bauman rumen biology hydrogen sulfide that offer thinks, metabolization child can restrain butterfat synthesis effectively among fatty acid. Trans-10, cis-12CLA is at present only confirms one kind can restrain butterfat complex effectively intermediate metabolization child. Butterfat rate and butterfat crop follow Trans-10, the addition that Cis-12CLA crosses rumen perfusion dosage and curvilinear sex is reduced. Research confirms Trans-10, cis-12CLA lowers butterfat yield through restraining what mammary gland organizes fatty acid to synthesize a way from the beginning. And Peterson and Ahnadi use the research that revulsive MFD produces ration to make clear, the fatty acid in mammary gland organization and triglyceride synthesis reaction all suffer restrain, the key is enzymatic gene related butterfat synthesis conveys abundance to reduce.
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