The objective was to assess the ability of the in situ mobile nylon bag method for predicting small intestinal and total tract starch digestibility. Starch disappearance was measured for 18 samples of different cereals and legumes subjected to different physical and chemical processing methods and compared with coherent in vivo digestibility. Starch disappearance was measured both with and with...

The continuous input, slow decomposition, and retention of straw can impede tillage crop growth, the decomposition process in soil is affected by its composition method application. Experimental Station Jilin Agricultural University, Changchun City, Province. type was Argiudolls, experimental field area 30 m2, maize planted continuously for 12 years without returning to field. There were four t...

Eight rumen-fistulated steers were randomly assigned to mediumand high-concentrate diets supplemented with O, .75, 2.5 and 5% of either sodium bicarbonate or an artificial saliva salts mixture. Each animal was fed for 21 d at 75 g dry matter/kg body weight 'Ts. Rates of soybean meal (SBM) degradation were predicted by adjusting digestion rates in nylon bags with respective passage rates of chro...

Sleeve cages for enclosing or excluding arthropods are essential components of field studies evaluating trophic interactions. Microclimatic variation in sleeve cages was evaluated to characterize its potential effects on subsequent long-term experiments. Two sleeve cage materials, polyester and nylon, and two cage sizes, 400 and 6000 cm(2), were tested on eastern hemlock, Tsuga canadensis (L.) ...