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Articles 1 - 21 of 21
Full-Text Articles in Life Sciences
Effects Of Fasting And Transportation On Pork Quality Development And Extent Of Postmortem Metabolism, J.M. Leheska, D.M. Wulf, R.J. Maddock
Effects Of Fasting And Transportation On Pork Quality Development And Extent Of Postmortem Metabolism, J.M. Leheska, D.M. Wulf, R.J. Maddock
Animal Science Faculty Publications
One hundred seventy-seven pigs were used to determine the interaction effects of fasting and length of transport prior to harvest on pork muscle quality. The study design was a 2 × 2 × 3 factorial, which involved two genetic sources, fasting (F) or no fasting (N) of pigs 48-h prior to harvest, and three transport times (0.5, 2.5, or 8.0 h) on a semitrailer to the packing plant. Genetic source was a significant source of variation (P < 0.05) for most composition and muscle quality variables. Fasting reduced hot carcass weight 3.6% (P < 0.05), but length of transport did not affect hot carcass weight (P > 0.05). There were no differences (P > 0.05) in percent lean among fasting and transport treatments. Fasted pigs had higher longissimus dorsi (LD) ultimate …
2003 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
2003 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
Little International Agricultural Exposition Catalogs
No abstract provided.
Effects Of Water Quality On Performance And Health Of Growing Steers, Hubert H. Patterson, Patricia S. Johnson, Doug B. Young, Ronald Haigh
Effects Of Water Quality On Performance And Health Of Growing Steers, Hubert H. Patterson, Patricia S. Johnson, Doug B. Young, Ronald Haigh
South Dakota Beef Report, 2003
Water available to livestock in western South Dakota is often high in total dissolved solids (TDS) and sulfates. Eighty-one crossbred, yearling steers (700 lb) were used to determine the effects of TDS and/or sulfates in water on cattle performance and health. Cattle were stratified by weight and randomly assigned to one of 12 pens (6-7 steers/pen). Pens were randomly assigned to one of four treatments (three pens/treatment) based on supplied water: 1) rural water (RW; 1,019 ppm TDS; 404 ppm sulfates, 2) well water (WW; 4,835 ppm TDS; 3,087 ppm sulfates), 3) dam water (DW; 6,191 ppm TDS; 3,947 ppm …
Effects Of Diets Containing Soybean Hulls Or Rolled Corn On The Performance And Mineral Status Of Newly Received Calves, Howard M. Blalock, Robbi H. Pritchard, William Epperson
Effects Of Diets Containing Soybean Hulls Or Rolled Corn On The Performance And Mineral Status Of Newly Received Calves, Howard M. Blalock, Robbi H. Pritchard, William Epperson
South Dakota Beef Report, 2003
The objective of this study was to determine the effectiveness of soybean hulls as an energy source for newly received feeder calves and their effects on ADG, DMI, gain/feed (G/F), morbidity rate and mineral status. Steers from a single source were blocked into previously weaned (PW; n = 63; BW = 265 ± 2.9 kg) and non-weaned (NW; n = 92; BW = 264 ± 2.4 kg) groups, then allotted to one of two dietary treatment groups. Diets consisted of either rolled corn (CRN) or soybean hulls (SBH), and oat silage and vitamin/mineral supplements. Liver biopsies and blood samples were …
The Effects Of Trace Mineral Inclusion Management On The Performance And Mineral Status Of Newly Recwived Feeder Calves, Howard M. Blalock, Robbi H. Pritchard, William Epperson
The Effects Of Trace Mineral Inclusion Management On The Performance And Mineral Status Of Newly Recwived Feeder Calves, Howard M. Blalock, Robbi H. Pritchard, William Epperson
South Dakota Beef Report, 2003
The objective of this study was to determine the effects of trace mineral inclusion management on the performance and mineral status of newly received feeder calves. Steers from 2 pastures at a single ranch in Western South Dakota blocked into non-implanted (NI; n = 64; BW = 240 kg), May implanted (MI; n = 64; BW 252 kg;) and August implanted (AI; n = 66; BW = 248 kg;) groups, then allotted to one of two treatment groups. Treatments consisted of either: a pelleted supplement fed at a fixed amount to meet the gram / daily requirement (GDR) of Cu …
Feeding Value Of Rolled And Whole Shelled Waxy Corn In Finishing Diets, Robbi H. Pritchard, Kelly W. Bruns
Feeding Value Of Rolled And Whole Shelled Waxy Corn In Finishing Diets, Robbi H. Pritchard, Kelly W. Bruns
South Dakota Beef Report, 2003
Waxy corn in rolled or whole shelled form was compared with rolled normal corn in finishing diets for cattle. Steers (n = 144; initial BW = 765 lb) were allocated to 18 pens and fed these three grain types in a 123 d experiment. The waxy corn was a sole source grain that tested >99% pure waxy endosperm. The normal rolled was acquired as needed through a commercial elevator. Diets contained 78% grain as NR) normal rolled; WR) waxy rolled; or WW) waxy whole grain. Diet had no effect on DMI and there were no differences for production variables between …
A Comparison Of Lifetime Implant Strategies For Beef Steers, Robbi H. Pritchard, Kelly W. Bruns, Donald L. Boggs
A Comparison Of Lifetime Implant Strategies For Beef Steers, Robbi H. Pritchard, Kelly W. Bruns, Donald L. Boggs
South Dakota Beef Report, 2003
Lifetime implant strategies were developed and applied to steer calves. The design was intended for evaluating strategies rather than specific implants. Strategies involving increasing potency of products used at common stages of production. Initial implants were administered when calves were approximately 2 mo of age. Implants did not increase BW at weaning or after backgrounding (P > 0.10) although they did increase ADG 5% over non-implanted controls during backgrounding (P < 0.05). The influence of implants on ADG was more pronounced during the finishing phase of production. Implants increased (P < 0.05) finishing phase ADG 18%, DMI 7.2%, and feed efficiency 9.4%. Overall post-weaning ADG increased 12% (P < 0.05) due to implants. Performance results changed when evaluating data on a live versus carcass weight basis due to differences in dressing percent. Increasing potency of the implant strategies caused progressive increases (P < 0.05) in carcass weight and ribeye area. Implanted steers produced fatter carcasses than did non-implanted steers (P < 0.05). There were no advances in skeletal or lean maturity attributable to the potency of the implant strategy. The frequency of carcasses grading Average Choice or better declined with implants. Implant strategies had no relevant influence on shear force. Overall, 12% of carcasses had a shear force > 5.0 kg (undesirable).
Sorting Cattle - A Review, Kelly W. Bruns, Robbi H. Pritchard
Sorting Cattle - A Review, Kelly W. Bruns, Robbi H. Pritchard
South Dakota Beef Report, 2003
The purpose of this report is to review the most current concepts of sorting cattle. The reader should be aware that individual feedlot programs and markets will dictate the involvement and extent of sorting and its usefulness.
Characterization Of The Beef Cow-Calf Enterprise Of The Northern Great Plains, Barry Dunn, Edward Hamilton, Dick Pruitt
Characterization Of The Beef Cow-Calf Enterprise Of The Northern Great Plains, Barry Dunn, Edward Hamilton, Dick Pruitt
South Dakota Beef Report, 2003
One hundred eighty five privately owned and operated cow-calf enterprises provided production data on their beef cow-calf operations. 0ne hundred and forty eight of those also provided financial information on a modified cost basis. The enterprises were located in the states of South Dakota, Nebraska, Montana, Minnesota, Iowa, Kansas, Wyoming, and North Dakota. The data were collected at the herd level according to Standardized Performance Analysis (SPA) guidelines during the years 1991-1999. By industry standards these operations were large, averaging just over 11,000 acres and 500 beginning year breeding females. They began calving approximately March 1st,, had an average 93% …
Increasing The Value Of The Round And Sirloin Through Pre-Rigo Skeletal Separations, Bruce C. Shanks, Duane M. Wulf, Brian J. Reuter, Robert J. Maddock
Increasing The Value Of The Round And Sirloin Through Pre-Rigo Skeletal Separations, Bruce C. Shanks, Duane M. Wulf, Brian J. Reuter, Robert J. Maddock
South Dakota Beef Report, 2003
Thirty crossbred steers were utilized to explore and compare tenderness improvements in beef round and sirloin muscles resulting from various methods of pre-rigor skeletal separations. Animals were slaughtered according to industry procedures and at 60 min postmortem one of six treatments were randomly applied to each side: A) control, B) saw pelvis at the sirloin-round junction, C) separate the pelvic-femur joint, D) saw femur at mid-point, E) combination of B and C, and F) combination of B and D. After 48-h, the following muscles were excised from each side: semimembranosis (SM), biceps femoris (BF-R), semitendinosis (ST), and adductor (AD) from …
Sdsu Cow-Calf Teaching And Research Unit, Dick Pruitt, Kevin Vanderwal, Anna Drew
Sdsu Cow-Calf Teaching And Research Unit, Dick Pruitt, Kevin Vanderwal, Anna Drew
South Dakota Beef Report, 2003
The SDSU Cow/Calf Teaching and Research Unit serves as a resource for teaching, research, extension and student organizations. In addition to use in the classroom, cattle are used for the annual SDSU Little International, Block & Bridle activities, field days, and numerous 4-H, FFA, and other educational events. Recent research projects at the Unit include studies on estrus synchronization, winter supplementation, and absorption of colostrum. For teaching purposes, cattle that vary in calving ease, growth rate, mature size, and maternal value are maintained. It is not feasible to maintain all of the breeds that are important in this region. The …
Characteristics Of Cressbred Progeny Of Holstein Dams Sired By Different Beef Breeds: A Review, Bruce C. Shanks
Characteristics Of Cressbred Progeny Of Holstein Dams Sired By Different Beef Breeds: A Review, Bruce C. Shanks
South Dakota Beef Report, 2003
Excellent reviews of cattle breed comparisons or breed-cross comparisons have been previously reported by Franke (1980), Long (1980), and Marshall (1994). However, these reviews do not contain information on the calving ease, performance, carcass characteristics, or beef palatability of crossbred progeny of Holstein dams sired by different beef breeds. In many countries dairy females are commonly mated to beef sires; however, in the United States the use of this practice is somewhat limited. Nevertheless, some United States dairy production schemes utilize beef sires on surplus Holstein heifers and cows. Also, some large commercial dairy operations purchase replacement heifers from outside …
Associations Of A Leptin Gene Polymorphism With Beef Carcass Traits, Chad D. Bierman, Donald M. Marshall, Emilie Campbell, Nels H. Granholm
Associations Of A Leptin Gene Polymorphism With Beef Carcass Traits, Chad D. Bierman, Donald M. Marshall, Emilie Campbell, Nels H. Granholm
South Dakota Beef Report, 2003
The objective was to evaluate associations of leptin genotype with fat and muscle traits in cattle. A single nucleotide polymorphism located in exon 2 of the leptin gene in cattle codes for an amino acid change from arginine (R) to cysteine (C). Genotypes for the polymorphism were determined on 492 crossbred calves by AciI digestion of amplified PCR product (C allele: 130bp; R allele: 73bp and 57bp). Data were analyzed by least-squares, accounting for effects of genotype, sex, year, location, breed-type, and calf sire. Genotype was not significantly associated with carcass weight or ribeye area in any of the analyses. …
A Preliminary Assessment Of Lung Lesion Distribution In Fed Cattle, William B. Epperson
A Preliminary Assessment Of Lung Lesion Distribution In Fed Cattle, William B. Epperson
South Dakota Beef Report, 2003
The objectives of this research were to describe the lobar location of lung lesions and determine diagnostic sensitivity of lung lesion detection when only a portion of lobes are evaluated.
A Retrospective Case Study Implicating Foster Calves In A Calf Diarrhea Epidemic, William B. Epperson
A Retrospective Case Study Implicating Foster Calves In A Calf Diarrhea Epidemic, William B. Epperson
South Dakota Beef Report, 2003
This report is a retrospective case study of a herd that experienced a severe calf scours epidemic in 2000. The objective of this study was to determine risk factors at work in this epidemic.
A Comparison Of Methods For On-Farm Determination Of Failure Of Passive Transfer Of Immunoglobulin To Dairy Calves, Ann Harvey
The Journal of Undergraduate Research
Two commercially available, qualitative, on-farm test kits (Midland BioProducts Inc., Boone, lA), utilizing either serum or whole blood to evaluate failure of passive transfer (FPT) of immunoglobulins, were evaluated using 38 Holstein calves. Results from the kits were compared with refractometry determination of serum proteins and radial immunodiffusion determinations specific for IgG (RID; Triple J Farms, Bellingham,WA). Blood samples were collected immediately following birth before first colostrum feeding and at 48 h. At birth, serum protein concentrations averaged 4.52 g/dl and IgG averaged 8.6 mg/dl, respectively, for refractometer and RID. Forty eight hours after feeding colostrum, serum protein concentrations averaged …
Dairy Digest 2003, South Dakota State University Dairy Club
Dairy Digest 2003, South Dakota State University Dairy Club
Dairy Digest
No abstract provided.
Recommended Strategies For Odor Control In Confinement Beef Cattle Operations, Kent Tjardes, Alvaro Garcia, Hans Stein, Charles Ullery, Stephen Pohl, Christopher Schmit
Recommended Strategies For Odor Control In Confinement Beef Cattle Operations, Kent Tjardes, Alvaro Garcia, Hans Stein, Charles Ullery, Stephen Pohl, Christopher Schmit
SDSU Extension Special Series
Odors coming off a beef feeding operation are generated from three different sources: the feedlot facility, waste storage, and the land where the manure is applied. In some operations, the feedlot facility may also serve as the primary waste storage area. To reduce the total amount of odor generated from a beef feeding operation, odor generation and emission by each of these three sources needs to be reduced.
Protection Against A Bovine Viral Diarrhea Virus (Bvdv) Type 1 Challenge In Calves Vaccinated With A Bovine Herpesvirus-1 (Bhv-1)-Bvdv Recombinant, Heather J. Swan, Lyle J. Braun, Leonard J. Bello, William C. Lawrence, Reg D. Neiger, Christopher C.L. Chase
Protection Against A Bovine Viral Diarrhea Virus (Bvdv) Type 1 Challenge In Calves Vaccinated With A Bovine Herpesvirus-1 (Bhv-1)-Bvdv Recombinant, Heather J. Swan, Lyle J. Braun, Leonard J. Bello, William C. Lawrence, Reg D. Neiger, Christopher C.L. Chase
South Dakota Beef Report, 2003
A recently developed recombinant bovine herpesvirus 1 (BHV-1) virus containing the envelope protein gp53 of bovine viral diarrhea virus (BVDV) type 1, BHV-1 (v1V31), was assessed for its ability to protect against BVDV in calves. Four calves were vaccinated intranasally with the recombinant BHV-1-BVDV vaccine and did not exhibit any clinical signs following vaccination. The vaccine virus was recovered from all vaccinated calves on days 8 through 10 and the replication appeared to be restricted to nasal passages. Twenty-eight days after vaccination, the four vaccinated and four control calves were challenged with the type 1 BVDV, strain NY-1. All calves …
Effect Of Calving Time And Weaning Time On Cow And Calf Performace - A Preliminary Report, Dick Pruitt, Ron Haigh, William Epperson, Scott Fausti, Doug Young
Effect Of Calving Time And Weaning Time On Cow And Calf Performace - A Preliminary Report, Dick Pruitt, Ron Haigh, William Epperson, Scott Fausti, Doug Young
South Dakota Beef Report, 2003
Cows grazing native range pasture year round in western South Dakota were allotted to 3 management systems: 1) A calving season starting in mid March with calves weaned in late October; 2) A calving season starting in mid March with calves weaned in mid September; and 3) A calving season starting in early May with calves weaned in late October. The effect of management system on pregnancy rate was year dependent. After 4 years of the study, there was no consistent advantage for any particular group. Average weaning weight was consistently higher for the March calving/October weaned group that was …
2003 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
2003 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, 2003
This is the 2003 South Dakota Beef Report. The articles published in this report summarize many of the beef cattle research activities conducted at South Dakota State University during 2003. The articles in this report have many levels of application. Some information has immediate application for your farm, ranch, or agribusiness. The articles include information on nutrition, feed management, reproductive management, health, growth and development, and economics of the cattle and beef industry in South Dakota.