Circadian patterns of feed intake and milk composition variability.

摘要: Summary The dairy cow has a well-recognized natural daily pattern of feed intake and milk synthesis, but regulation these circadian rhythms not been well described in the literature or considered current management. Even when total mixed ration (TMR) is fed, ruminal fermentation varies due to variation consumption, resulting more fermentable substrate rumen during high period day. We propose that “circadian feeding management strategies” can improve yield efficiency by stabilizing temporally matching nutrient absorption mammary requirements, thereby altering interactions between central peripheral clocks. Although we are early our research efforts, have demonstrated there fat protein synthesis dependent on timing intake.