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Full-Text Articles in Life Sciences
Ruminal And Plasma Responses In Dairy Cows To Drenching Or Feeding Glycerol, Peter Linke
Ruminal And Plasma Responses In Dairy Cows To Drenching Or Feeding Glycerol, Peter Linke
The Journal of Undergraduate Research
Four Holstein dairy cows (137 DIM, 60 kg milk/d) were used in a Latin square with 1-wk periods to evaluate the effect of methods of oral delivery of glycerol on ruminal VFA and plasma concentrations of glucose, 6-hydroxybutyrate (BHBA), nonesterified fatty acids (NEFA), and insulin. All cows were fed only grass hay for ad libitum consumption during 12 h before the experiment. At the start of the experiment, time 0, all cows were fed 5 kg of cracked corn. Treatments administered at time 0 were: 1) control (C), no glycerol; 2) fed glycerol (F), 1 kg of glycerol solution (80% …
Furniture Usage And Activity Budgets Of Captive Black And White Ruffed Lemurs (Varecia Variegata Variegata) And Ring- Tailed Lemurs (Lemur Catta) At Bramble Park Zoo, Watertown, South Dakota, Zarah Hedge
The Journal of Undergraduate Research
A behavioral study was conducted on the black and white ruffed lemurs and ring-tailed lemurs at Bramble Park Zoo in summer 2004 to determine if the furniture in the exhibit was sufficient to enable them to display their natural behaviors. The study was performed using a time sampling method of one minute, and ten hours of data was gathered. Both species of lemur spent a significant portion of the observed time resting, more so than has been found in wild populations of lemurs. The time spent foraging (.33% and 2.5% for the ruffed lemurs and 2.1% for the ring-tails) and …
The Journal Of Undergraduate Research: Volume 03
The Journal Of Undergraduate Research: Volume 03
The Journal of Undergraduate Research
This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 3.
The Fate If 2, 4-D In Intact Soybean (Glycine Mix), Laura Hummel, Anthony Mayer
The Fate If 2, 4-D In Intact Soybean (Glycine Mix), Laura Hummel, Anthony Mayer
The Journal of Undergraduate Research
About 479,000 pounds of 2,4-D (2, 4-dichlorophenoxyacetic acid) was applied to South Dakota's crops in 2000. 2,4-D can injure or reduce yield of soybean (Glycine max) if deposited on growing plants. This study determined uptake, translocation, and metabolism of ring-labeled-2,4-D in soybean at the third trifoliate (V3) stage of growth. Plants were harvested and partitioned into four parts from 1 hr (HAT)to 10 d (DAT) after treatment. Thin layer chromatography techniques were used to determine if remaining in the tissue was parent chemical or metabolite. 2,4-D uptake ranged from 39% at 1 HAT to 74% 6 DAT.By 10 DAT, translocated …