Two experiments were conducted to evaluate the use of a closed system, fermentation apparatus (Daisy II incubator) and determine the effects of a yeast culture (YC) preparation (Saccharomyces cerevisiae) on in vitro microbial populations, diet digestion, and fermentation patterns in horses. In Exp. 1, 4 mature horses were fed a pelleted concentrate and alfalfa cubes in a 50:50 (%, as-fed) ratio...

The objective of this research was to compare values for digestible energy (DE) and metabolisable energy (ME) and apparent total tract digestibility (ATTD) of nutrients in 11 diets fed to both growing pigs and gestating sows. Three diets were based on corn, wheat or sorghum and eight diets were based on a combination of corn and soybean meal, canola meal, conventional distillers' dried grains w...

Twenty-one multiparous sows were used in a Latin square design, from days 7 to 90 of gestation, to test the effect of fibre and food levels on feeding motivation and feeding-related stereotypies. Treatments were: VHF (very high-fibre, 29% ADF, 50% NDF, 4.5kg/day); HF (high-fibre, 23% ADF, 43% NDF, 3.5kg/day); C (control, 8% ADF, 20% NDF, 2.5kg/day); and control fed ad libitum (CAL). All diets e...

A study involving a 2 x 2 x 2 factorial arrangement of treatments was conducted to evaluate effects of hybrid (Pioneer 3335 and 3489), maturity (half milkline and blacklayer), and mechanical processing (field chopper with and without on-board rollers engaged) on intake and digestibility of corn silage. Forty Angus steers (322 +/- 5.2 kg BW) were assigned to the eight silage treatments (five ste...

Timely and accurate detection of above-ground herbage mass and the nutritive value of pastures can help the more efficient adjustment of stocking rate and determine the timing of protein supplements to be fed to livestock grazing these pastures. The objectives of this study were to determine seasonal variation in herbage mass, neutral-detergent fibre (NDF), aciddetergent fibre (ADF) and crude p...

A study was conducted to evaluate the nutrient content and variability of distiller’s dried grains with solubles (DDGS) originating from new (less than 5 yr. old) ethanol plants in MN and SD. Ten plants (8-MN, 2-SD) participated in the study, submitting a total of 88 samples. Samples of DDGS were collected every two months during 1997 (n=38) and 1998 (n=50) and were sent to the University of Mi...

A study was conducted to evaluate the nutrient content and variability of distiller's dried grains with solubles (DDGS) originating from new (less than 5 yr old) ethanol plants in Minnesota and South Dakota. Ten plants (8 MN, 2 SD) participated in the study, submitting a total of 118 samples. Samples were collected every 2 mo from ten ethanol plants in the Minnesota-South Dakota (MNSD) region f...

Bu çalışmanın amacı in vitro gaz üretim tekniği kullanılarak yapılan çalışmalarda yemlerin besin madde bileşimleri ile gaz, metan ve OMS değerleri arasındaki ilişkiyi incelemektir. çalışmada üç temel yem grubu ele alınmıştır. grupları; kaba yem, kesif toplam rasyon karışımı (TMR) yemler oluşturmaktadır. Toplam 80 adet materyalin kuru (KM), ham kül (HK), nötr deterjanda çözünmeyen lif (NDF), asi...

The objectives of this study were to investigate the effect starch and protein interaction on rumen environment, in situ digestion, total-tract digestibility nutrients weaned dairy calves between 8 16 wk age. Sixteen rumen-cannulated randomly divided into 4 dietary treatment groups with fed each treatment. diets had 2 levels [18%, low (LS), or 38%, high (HS)] [16%, (LP), 22%, (HP)] a dry matter...

Silicon in forage reduces dry matter digestibility and may reduce grazing preference. Two studies were conducted with the following objectives: (1) to evaluate a method of determining grazing preference, and (2) to characterize the distribution and solubility of silicon in 31 accessions of C-3 grasses and relate these traits to grazing preference and estimated forage digestibility. Forage sampl...