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Articles 31 - 37 of 37
Full-Text Articles in Life Sciences
Grain Sources And Roughage Levels For Limited Feeding Backgrounding Programs, R. H. Pritchard, M. A. Robbins
Grain Sources And Roughage Levels For Limited Feeding Backgrounding Programs, R. H. Pritchard, M. A. Robbins
South Dakota Beef Report, 1991
The effects of grain source and roughage level in limited intake feeding programs were evaluated in 622-lb steer calves. Supplemented diets were based on high moisture ear corn (HMEC), whole shelled corn (WSC) + hay to provide similar NDF to the HMEC diet, HMEC diet containing 10% hay and the WSC + hay diet formulated to contain NDF similar to HMEC + hay. Steer calves were blocked by weight and fed to achieve 2.2 Ib ADG for a 52-day period. Steers fed HMEC had higher (P<.01) ADG and lower (P<.01) feed/gain than WSC fed steers. Low crude protein in the hay source caused lower (P<.01) crude protein in WSC diets. Lower crude protein intake could have limited steer growth. NE utilization appeared more efficient (P<.05) for heavy weight block steers, reflecting NRC equation low sensitivity to modest differences in frame size. Roughage level did not affect performance and did not interact with grain source.
Relationship Of Maintenance Energy Requirements To Beef Female Production Efficiency, S. A. Shuey, C. P. Birkelo, D. M. Marshall
Relationship Of Maintenance Energy Requirements To Beef Female Production Efficiency, S. A. Shuey, C. P. Birkelo, D. M. Marshall
South Dakota Beef Report, 1991
Thirty-three Hereford x Angus first-calf females were used to determine the relationship between production efficiency (PE = calf weaning weight/l2month dam + calf ME intake) and nonlactating dam maintenance ME requirements (MEm) and its components k, and FHP. Substantial variation existed in PE and energy parameters among individuals. However, maintenance metabolism of the dam contributed little to explaining PE variation (Fs.04). This may have been due to the high plane of nutrition provided. Additionally, FHP was closely related to MEm (r2 = .69), suggesting it could be used as an indicator of fed maintenance requirements.
In Vitro Digestibility Of Untreated And Ammonia Treated Oat Mill By-Product, C. P. Birkelo, B. Borkowski, S. Shuey
In Vitro Digestibility Of Untreated And Ammonia Treated Oat Mill By-Product, C. P. Birkelo, B. Borkowski, S. Shuey
South Dakota Beef Report, 1991
Oat mill by-product (OMB, approximately 80% oat hulls) was treated with 0, 1%, 3%, or 5% NH3 and 10%, 20%, 30%, 40%, or 50% H2O (4 x 5 factorial design) and allowed to react for 28 days. Samples were analyzed for in vitro dry matter digestibility (IVDMD), crude protein (CP) and fiber content (NDF, ADF, ADL). Treatment with 3% NH3 and 20% H20 resulted in maximum improvement of IVDMD. CP was increased and NDF decreased due to treatment. Nutritional value of OMB can be improved by NH3 treatment.
Sdsu Purebred Beef Herds, R. J. Pruitt
Sdsu Purebred Beef Herds, R. J. Pruitt
South Dakota Beef Report, 1991
A herd of purebred Angus and Simmental cows used for teaching, research and extension activities is maintained at the Cow-Calf Teaching and Research Unit near the SDSU campus. Besides use in the classroom, cattle are used for numerous student activities, field days and 4-H, FFA and other educational events. In addition to providing research information and an opportunity for education, this herd provides a stimulus for interactions between students and faculty and an avenue for communication between faculty and producers in the region.
Interpreting Experimental Results, D. M. Marshall
Interpreting Experimental Results, D. M. Marshall
South Dakota Beef Report, 1991
No abstract provided.
1990-1991 Dairy Digest, South Dakota State University Dairy Club
1990-1991 Dairy Digest, South Dakota State University Dairy Club
Dairy Digest
No abstract provided.
1991 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University
1991 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University
South Dakota Beef Report, 1991
This is the complete 1991 South Dakota Beef Report.