A modified true metabolizable energy bioassay was used to determine the nitrogen-corrected apparent (AMEn) and true (TMEn) metabolizable energy of various feed ingredients for ducks. In each of two experiments, which lasted 102 h with a 54-h excreta collection period following a 48-h period of feed withdrawal, six male White Pekin ducks were assigned to each of three test feed ingredients and d...

Two experiments were conducted, each with 24 White Pekin ducks, to determine the AME and TME content of five feedstuffs for ducks. In each experiment, fasting losses were obtained from six ducks and six ducks were used for each feedstuff. Each experiment lasted 102 h with an initial 48-h period and a 54-h excreta collection period. During the first 48-h period, all birds were tube-fed dextrose ...

The findings presented in this briefing are preliminary interim results from a series of deliberative workshops undertaken with members of the public across six UK locations (see endnote) during the period June – October 2011. The early analysis presented here not only provides an indication of key areas of public acceptability and unacceptability relating to whole energy system change but also...

whereQf is the fractional charge of the quark, and the factor of 3 in front counts the three colors for each flavor. The cross section of the pure QED process is σ(e+e− → μ+μ−) = 4πα2/3s. The value of R, which counts directly the number of quarks, both flavor and colors, is expected to be constant so long as the centerof-mass (cm) energy of the annihilated e+e− does not overlap with resonances ...

Land leveling is one of the most important steps in soil preparation and cultivation. Although land leveling with machines requires considerable amount of energy, it delivers a suitable surface slope with minimal soil deterioration as well as damage to plants and other organisms in the soil. Notwithstanding, in recent years researchers have tried to reduce fossil fuel consumption and its delete...