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Kansas Agricultural Experiment Station Research Reports

1990

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Articles 1 - 30 of 78

Full-Text Articles in Life Sciences

Comparison Of Steer Feedlot Performance And Carcass Trait Uniformly By Method Of Sorting, P.L. Houghton, D.D. Simms, James J. Higgins Jan 1990

Comparison Of Steer Feedlot Performance And Carcass Trait Uniformly By Method Of Sorting, P.L. Houghton, D.D. Simms, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

Long yearling steers (n=997) of various biological types from two origins were used to test performance and carcass trait uniformity of unsorted cattle, visually sorted cattle, and cattle sorted by ultrasound and hip height. No significant differences (P> .05) in initial backfat uniformity were identified between sorted and unsorted groups; however, very little variation existed across all treatments (.17±.033 in.). Initial backfat had positive linear relationships with initial weight and carcass backfat and negative linear relationships with days on feed and daily gain (P<.05). These data indicate a reliable measurement of initial backfat could be useful for predicting days on feed and/or carcass backfat in long yearling steers, but economic usefulness will depend upon the variability of the cattle and the method of grouping.


Comparison Of Growth And Production Of Holstein Heifers Raised On 100% Or 115% Of The Nrc Requirements, E.J. Bortone, M. G. Daccarett, J.L. Morrill, A.M. Feyerherm Jan 1990

Comparison Of Growth And Production Of Holstein Heifers Raised On 100% Or 115% Of The Nrc Requirements, E.J. Bortone, M. G. Daccarett, J.L. Morrill, A.M. Feyerherm

Kansas Agricultural Experiment Station Research Reports

One hundred and ten Holstein heifers from the KSU Dairy Research Unit were used in this experiment. They were fed either 100% (control) or 115% (enhanced) of NRC requirements for energy, protein, major minerals, and vitamins from 6 mo of age to shortly before calving. Heifers in the enhanced group calved at an earlier age, had larger heart girths, and were heavier than controls. At this time, 46 of the heifers have completed at least 50 days in lactation. Based on their projected 305-2X-ME records, the heifers in the enhanced group have produced slightly, but not significantly, more milk and ...


Dairy Calf And Heifer Research At Ksu, J.L. Morrill Jan 1990

Dairy Calf And Heifer Research At Ksu, J.L. Morrill

Kansas Agricultural Experiment Station Research Reports

At Kansas State University, we are conducting research concerning nutrition and feeding management of calves, heifers, and dairy steers with emphasis in the following areas: 1) development of feeds and management practices to stimulate rumen development and allow earlier weaning, concomitant with satisfactory growth; 2) vitamin supplementation to improve performance of growing dairy animals, with emphasis on increasing efficiency of the immune system; 3) determination of nutrients needed by growing heifers to achieve desired rates of growth required to reach adequate size at freshening at 22 to 24 mo of age, without getting too fat; 4) study of feeding programs ...


Effect Of Rumen Degradability Of Protein And Fat On The Growth And Development Of Dairy Calves, D.E. Isbell, J.L. Morrill Jan 1990

Effect Of Rumen Degradability Of Protein And Fat On The Growth And Development Of Dairy Calves, D.E. Isbell, J.L. Morrill

Kansas Agricultural Experiment Station Research Reports

Sixty heifer and 34 bull calves were fed starter diets containing either control or extruded soybean meal (SBM) and either 2.5% or no bypass fat from birth to 8 wk of age. There were no interactions between the type of SBM and the amount of fat. There were no significant differences between the calves fed control or extruded SBM with or without fat supplementation, although the trends favored the calves fed extruded SBM with no bypass fat.; Dairy Day, 1990, Kansas State University, Manhattan, KS, 1990; The 1990 Annual KSU Dairy Day is known as Dairy Day, 1990


Effect Of Physical Form Of Diet On Ruminal Microbial And Metabolic Development In Young Calves, A.A. Beharka, Tiruvoor G. Nagaraja, J.L. Morrill Jan 1990

Effect Of Physical Form Of Diet On Ruminal Microbial And Metabolic Development In Young Calves, A.A. Beharka, Tiruvoor G. Nagaraja, J.L. Morrill

Kansas Agricultural Experiment Station Research Reports

Eight, ruminally cannulated, newborn, Holstein, bull calves were assigned to receive either finely ground or unground (chopped hay and normally ground grain) diet to study the effects of diet form on ruminal microbial and metabolic development. The difference in diet particle size caused a difference in ruminal pH and a shift in the bacterial population, as evidenced by decreased cellulolytic and increased amylolytic bacterial counts for the ground diet.; Dairy Day, 1990, Kansas State University, Manhattan, KS, 1990; The 1990 Annual KSU Dairy Day is known as Dairy Day, 1990


Performance And Ruminal Microbial And Metabolic Development Of Young Calves Fed Diets Containing Aspergillus Oryzae Extract, A.A. Beharka, J.L. Morrill, Tiruvoor G. Nagaraja Jan 1990

Performance And Ruminal Microbial And Metabolic Development Of Young Calves Fed Diets Containing Aspergillus Oryzae Extract, A.A. Beharka, J.L. Morrill, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Seventy-three, neonatal, Holstein, heifer calves in one experiment and 45 neonatal, Holstein, bull calves in another were used to study the effects of dietary Aspergillus oryzae extract (Amaferm) on calf performance. Forty of the heifer calves were selected to study the effects on ruminal microbial and metabolic development. In general, Amaferm-supplemented calves had greater ruminal microbial activity than the calves fed no Amaferm. For the most part, growth and feed intake were not affected.; Dairy Day, 1990, Kansas State University, Manhattan, KS, 1990; The 1990 Annual KSU Dairy Day is known as Dairy Day, 1990


Effect Of Parturition And Recombination Bovine Somatotropin (Rbst) On The Metabolic Profile Of Dairy Cows, J.M. Estrada, John E. Shirley Jan 1990

Effect Of Parturition And Recombination Bovine Somatotropin (Rbst) On The Metabolic Profile Of Dairy Cows, J.M. Estrada, John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Summary Blood samples were collected from 16 Holstein cows around parturition to obtain baseline values of various hormones and metabolites. At 90 ± 3 days postcalving, cows were divided into two groups (8 cows/group) and injected with either saline (control) or 25 mg rBST/d for 28 consecutive days. Blood was sampled on days 0, 1, 5, 10, 15, 30, and 45 after the beginning of treatment and analyzed for insulin, glucagon, growth hormone, glucose, and blood urea nitrogen (BUN). Milk production and composition were recorded as well as body weights and condition scores. Cows receiving rBST had higher milk ...


Fat Source Effects On Finishing Steer Digestion And Metabolism, B.J. Bock, D.L. Harmon, Robert T. Brandt Jr., J.E. Schneider Jan 1990

Fat Source Effects On Finishing Steer Digestion And Metabolism, B.J. Bock, D.L. Harmon, Robert T. Brandt Jr., J.E. Schneider

Kansas Agricultural Experiment Station Research Reports

A replicated 3 x 3 Latin square design was used to explore the effects of fat source (none vs 3.5% soybean oil soapstock or animal tallow) when fed with high (1.0%) calcium on digestion and metabolism of a finishing diet by steers. Adding fat did not affect site or extent of starch or dry matter digestion. A net synthesis of long chain fatty acids occurred in the rumen. Feeding fat tended (P=.ll) to depress bacterial N flowing at the duodenum but did not affect nonbacterial N or total N.


Influence Of Fat And Ionophores On Performance Of Finishing Steers, E.M. Clary, Robert T. Brandt Jr., Ronald V. Pope Jan 1990

Influence Of Fat And Ionophores On Performance Of Finishing Steers, E.M. Clary, Robert T. Brandt Jr., Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

One hundred ninety-two crossbred steers were used in a 2 x 4 factorially arranged experiment to study the effects of including fat and ionophores in finishing rations. Main effects were level of supplemental fat (0 or 4% tallow) and ionophore type [none, Bovatece (B), Rumensine + 'JYlane (RT), or daily rotation of Band RT (BRT)]. Daily feed intake (P<.10) and daily gain (P<.OO5) were reduced for steers fed R'T, but only when fat was included in the diet. In diets containing no supplemental fat, RT increased daily gain 10%. RT improved feed efficiency 8% (P<.05) in nonfat diets, but there was no difference between ionophores in diets containing fat. Adding fat improved feed efficiency of steers fed no ionophore or B. This study suggests that response of finishing steers to ionophores can be modified by the inclusion of fat in the diet.


Effect Of Fats And Ionophores On In Vitro Fermentation Of A High Concentrate Diet, E.M. Clary, Robert T. Brandt Jr., Tiruvoor G. Nagaraja Jan 1990

Effect Of Fats And Ionophores On In Vitro Fermentation Of A High Concentrate Diet, E.M. Clary, Robert T. Brandt Jr., Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Batch culture fermentations were used to determine the effects of fat type [none, animal tallow (AT), soybean oil soapstock (SOY), or yellow grease (YG)] and ionophore type [none, lasalocid (L), monensin + tylosin in a ratio of 2.5:1 (MT), or a 50:50 combination of Land MT (LMT)] on in vitro concentrations of lactate (LA) and volatile fatty acids (VFA). Fat-containing substrates had 4% fat on a dry basis. No significant interactions between fat and ionophore treatments were observed. Ionophore treatment resulted in a reduced pH, with the greatest reduction in the L treatment. lbtal VFA and LA increased ...


Influence Of Ruminal Butyrate Supply On Net Nutrient Producti0n And Absorption In Steers, C.R. Krehbiel, D.L. Harmon, J.E. Schneider Jan 1990

Influence Of Ruminal Butyrate Supply On Net Nutrient Producti0n And Absorption In Steers, C.R. Krehbiel, D.L. Harmon, J.E. Schneider

Kansas Agricultural Experiment Station Research Reports

Six Holstein steers were used to evaluate the effects of increasing ruminal butyrate on net nutrient production and absorption by the gastrointestinal tract and liver. Ruminal and arterial concentrations and net hepatic flux of butyrate increased with increasing butyrate infusion. Concentrations of glucose and a-amino-N in arterial blood decreased as butyrate infusion increased. Of the ruminal butyrate infused, 24.5% appeared in portal blood as butyrate. Acetoacetate, D-β-hydroxybutyrate, and a-amino-N were the nutrients most altered by increasing ruminal butyrate.


Value Of Ralgro® Implants In Feedlot Steers Previously Maintained On At High Endophyte-Infected Fescue Hay, L.R. Corah, F.K. Brazle, Frank Blecha, P.G. Reddy, R.E. Jr. Wary, J. Klindt Jan 1990

Value Of Ralgro® Implants In Feedlot Steers Previously Maintained On At High Endophyte-Infected Fescue Hay, L.R. Corah, F.K. Brazle, Frank Blecha, P.G. Reddy, R.E. Jr. Wary, J. Klindt

Kansas Agricultural Experiment Station Research Reports

Steers previously fed high-endophyte fescue hay showed a greater response of Ralgro® implants than those fed a low-endophyte hay. The mode of action for this response was not explained by cellular immune system responses or variability in prolactin levels.


Performance Of Steers Limit-Fed In Drylot Or On Mature Native Pasture, F.K. Brazle, Gerry L. Kuhl Jan 1990

Performance Of Steers Limit-Fed In Drylot Or On Mature Native Pasture, F.K. Brazle, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

Growing steers were limit-fed the same amount of a grain- and silage-based ration either in drylot or on dormant native range. The steers wintered on pasture gained 14.2% slower (1.82 V5 2.08 lb/d; P<.01) and were 15.3% less efficient than those in drylot, apparently because of increased energy expenditure from voluntary exercise.


Effects Of Processing Variables On Iridescence In Precooked Beef, H. Wang, Donald H. Kropf, Melvin C. Hunt, Curtis L. Kastner Jan 1990

Effects Of Processing Variables On Iridescence In Precooked Beef, H. Wang, Donald H. Kropf, Melvin C. Hunt, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Beef semitendinosus (ST) muscles with injected water (3 or 10% of raw muscle weight) and phosphate (0.3%) were cooked to final internal temperatures of 130 (held at 130 for 121 min), 140 (held at 140 for 12 min), 145, or 155°1\ then sliced at 30, 45, 120, 130, or 145<>P by either a dull or a sharp slicer. Biceps femoris (BF) muscles had the same treatment but only at 3% water addition. Controls were uninjected muscles from the opposite side of the carcass. For ST muscles (all with 0.3% added phosphate), 3% added water resulted in ...


Characteristics Of The Indigenous Microflora From Five Silage Crops In 1987, R.A. Hart, F. Niroomand, K.K. Bolsen, M.A. Lubinski, W.R. Aimutis Jan 1990

Characteristics Of The Indigenous Microflora From Five Silage Crops In 1987, R.A. Hart, F. Niroomand, K.K. Bolsen, M.A. Lubinski, W.R. Aimutis

Kansas Agricultural Experiment Station Research Reports

Indigenous lactic acid bacteria (LAB) were isolated from five silage crops in the 1987 growing season: wheat, alfalfa, com, interseeded grain sorghum and soybeans, and forage sorghum. All crops had post-harvest LAB counts that exceeded 5 x 105 colony-forming units/g. There were no significant correlations between rate of fermentation during the first 7 d post-ensiling and the indigenous LAB counts. However, corn and sorghum, which fermented rapidly, had higher populations of homofermentative LAB, and the isolates showed higher rod to cocci ratios compared to the other three crops. Most of the homofermentative rods isolated were Lactobacillus plantarum, and most ...


Effects Of Dietary Energy On Reproductive Function And Production In Suckled Beef Cows, R.C. Perry, L.R. Corah, W.E. Beal, G.H. Kiracofe, R.C. Cochran, D.D. Simms, J.R. Brethour, Jeffrey S. Stevenson Jan 1990

Effects Of Dietary Energy On Reproductive Function And Production In Suckled Beef Cows, R.C. Perry, L.R. Corah, W.E. Beal, G.H. Kiracofe, R.C. Cochran, D.D. Simms, J.R. Brethour, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Twenty-eight Hereford x Angus cows were utilized to determine the effects of dietary energy level before and after calving on reproductive function and production in suckled beef cows. Low levels of dietary energy before calving resulted in losses of body composition prior to calving, reduced calf birth weight, lengthened intervals from calving to ovulation, and decreased milk production and calf weight at 70 d of age (P<.05). Low levels of dietary energy after calving decreased measures of body composition after calving, reduced the percentage of cows that ovulated following calving, and decreased cow milk production and calf weight at 70 d of age (P< .05). We conclude that dietary energy before and after calving impacts the reproductive function and production of suckled beef cows.


Diagnosis Of Freemartinism In Heifers Born Co-Twin To A Bull, B.L. Larson, G.H. Kiracofe Jan 1990

Diagnosis Of Freemartinism In Heifers Born Co-Twin To A Bull, B.L. Larson, G.H. Kiracofe

Kansas Agricultural Experiment Station Research Reports

The wide variance in anatomical characteristics among heifers born co-twin to a bull make diagnosis of freemartinism by measurements of vaginal length or the distance between the anus and vulva unreliable. Change in serum luteinizing hormone (LH) in response to injection of estrogen or gonadotropin releasing hormone (GnRH) is different in freemartins compared to normal heifers but is also an unreliable predictor of freemartinism. Presently, the most conclusive way to establish freemartinism in a heifer born co-twin to a bull is to measure the percentage of XX and XY chromosomes in cells from whole blood, which is a specialized and ...


Managing Beef Genotypes For Profit: A Computer Simulation, R.R. Schalles, L.C. Martin, K.O. Zoellner Jan 1990

Managing Beef Genotypes For Profit: A Computer Simulation, R.R. Schalles, L.C. Martin, K.O. Zoellner

Kansas Agricultural Experiment Station Research Reports

In a computer simulation based on KSU data, cattle bred and managed to be moved directly from weaning to feedlot and slaughtered at a young age produced the greatest profit. Cattle that were too small or too large and management systems that increased age at slaughter were less profitable. This accelerated system of production allows a producer to take advantage of superior genetics and the economic opportunities they provide, especially with retained ownership. The beef industry has the opportunity to continue to produce quality beef, while reducing days to slaughter by taking advantage of the higher efficiency of feed conversion ...


Relationship Of Milk Production In Angus And Simmental Cows With Milk Expected Progeny Differences (Epds) And Calf Weaning Weight, T.T. Marston, D.D. Simms, R.R. Schalles, K.O. Zoellner, L.C. Martin, G.M. Fink Jan 1990

Relationship Of Milk Production In Angus And Simmental Cows With Milk Expected Progeny Differences (Epds) And Calf Weaning Weight, T.T. Marston, D.D. Simms, R.R. Schalles, K.O. Zoellner, L.C. Martin, G.M. Fink

Kansas Agricultural Experiment Station Research Reports

Spring and fall calving Angus (n==86) and Simmental (n==96) cows at three different locations in Kansas were used to evaluate the relationships between milk production, Milk Expected Progeny Difference (Milk EPD), and calf weaning weight. A change of 1 lb in Milk EPD resulted in 4.95 lb change in calf weaning weight in Angus and 4.60 lb in Simmental. Each lb increase in Milk EPD predicted a 69.87 lb increase in total lactation milk production in Angus and 70.741b in Simmentals. Positive correlations were .40 and .64 between Milk EPD and total milk produced ...


Evaluation Of Wheat Middlings-Based Supplements At Different Crude Protein Concentrations For Cattle Consuming Winter Range Forage, G.D. Sunvold, R.C. Cochran, E.S. Vanzant Jan 1990

Evaluation Of Wheat Middlings-Based Supplements At Different Crude Protein Concentrations For Cattle Consuming Winter Range Forage, G.D. Sunvold, R.C. Cochran, E.S. Vanzant

Kansas Agricultural Experiment Station Research Reports

Influence of increasing crude protein concentration in a wheat middlings-based supplement was evaluated in an intake/digestion trial. Protein-supplemented steers demonstrated increased (P<.01) intake of dormant, bluestem-range forage when compared with unsupplemented steers. Although increasing concentration of supplemental crude protein from 15 to 20% substantially increased (P<.01) forage and total dry matter intake. only slight increases in forage and total dry matter intake occurred when the concentration exceeded 20%. Protein supplementation increased (P<.01) fiber and dry matter digestibilities. Additionally. fiber digestibility tended (P=.087) to increase with increasing crude protein concentration of the supplement. Results suggest that when feeding a wheat middlings-based supplement. the crude protein concentration should be 20% or higher to optimize use of poor-quality forage.


Effect Of Protein Supplementation On Dormant, Bluestem-Range Forage Intake And Digestion And Protein Flow To The Small Intestine In Steers, S.M. Hannah, R.C. Cochran, D.L. Harmon, E.S. Vanzant Jan 1990

Effect Of Protein Supplementation On Dormant, Bluestem-Range Forage Intake And Digestion And Protein Flow To The Small Intestine In Steers, S.M. Hannah, R.C. Cochran, D.L. Harmon, E.S. Vanzant

Kansas Agricultural Experiment Station Research Reports

A digestion trial was conducted to determine dormant, bluestem-range forage intake, digestion, and protein flow to the small intestine in steers receiving different crude protein (CP) supplements. Dietary treatments were 1) control: no supplement; 2) low protein supplement (Low-CP): SBM + grain sorghum supplement containing 13% CP; 3) moderate protein supplement (Mod-CP): SBM + grain sorghum supplement containing 26% CP; and 4) dehydrated alfalfa pellets supplement (Dehy): supplement containing 17.5% CP. Forage intake increased an average of 36% in steers supplemented with Mod-CP and Dehy, compared to the forage intake of control steers. Forage intake of steers receiving Low-CP supplement was ...


Ensileability Of Alfalfa: Cutting, Maturity And Treatment Effects, J.L. Curtis, C. Lin, K.K. Bolsen Jan 1990

Ensileability Of Alfalfa: Cutting, Maturity And Treatment Effects, J.L. Curtis, C. Lin, K.K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Analysis of ensiling characteristics from late-bud, 10% bloom, and 50% bloom alfalfa, taken within each of four cuttings identified higher pre-ensiled dry matter (DM) content during the first two cuttings, whereas crop buffer capacity was weakest during the third cutting and subsequently strongest throughout the fourth cutting. Initial pH was lowest at the first cutting and increased with each cutting thereafter. Dry matter increased linearly within maturity, whereas late-bud maturity had the highest buffer capacity and initial pH. From hr 24 until d 90, the pH values were consistently highest for late-bud and lowest for 50% bloom silage. 1featments receiving ...


Yield And Nutritional Quality Of Nine Summer Annual Forages, Gerry L. Kuhl, J.P. Shroyes, Paul D. Hartman, Dale L. Fjell Jan 1990

Yield And Nutritional Quality Of Nine Summer Annual Forages, Gerry L. Kuhl, J.P. Shroyes, Paul D. Hartman, Dale L. Fjell

Kansas Agricultural Experiment Station Research Reports

Nine summer annual forages were studied to evaluate yield and nutritional quality differences resulting from forage type and cultivar when cut at two stages of maturity. Substantial dry matter yield and quality differences were observed among the six hybrid pearl millets tested. Several hybrid pearl millets gave comparable dry matter yields to the sorghum-sudans at boot and headed stages of growth. Hybrid pearl millets were much higher in crude protein than the hybrid sorghum-sudans and sudangrass. Although yield increased markedly between boot and headed cutting stages, nutritional value declined greatly. Nitrate levels were excessively high in all forages when harvested ...


Effect Of Niacin Supplementation Of Stockers Grazing Tall Fescue Pastures, F.K. Brazle, K.P. Coffey, L.R. Corah, Joseph L. Moyer Jan 1990

Effect Of Niacin Supplementation Of Stockers Grazing Tall Fescue Pastures, F.K. Brazle, K.P. Coffey, L.R. Corah, Joseph L. Moyer

Kansas Agricultural Experiment Station Research Reports

In three trials, there was no gain response by stockers offered supplemental niacin while grazing tall fescue pasture in the spring or fall. There was a trend toward lower body temperatures for niacin-supplemented cattle, but this was not significant. Niacin fed at 2 to 4 g per head daily did not reduce the fescue endophyte fungus problem.


Effect Of L-Carnitine On Starter Pig Performance And Fat Utilization, T L. Weeden, J A. Hansen, G E. Fitzner, D F. Li, S A. Blum, Jim L. Nelssen, Robert D. Goodband Jan 1990

Effect Of L-Carnitine On Starter Pig Performance And Fat Utilization, T L. Weeden, J A. Hansen, G E. Fitzner, D F. Li, S A. Blum, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Three hundred early-weaned pigs with average initial weights of 12.3 and 13.2 lb, respectively, were utilized in two 5-wk experiments to determine the effect of L-carnitine on growth Performance. Diets contained 20% dried skim and 20% dried whey in phase 1 ( 0 to 14 d) for both experiments and 20 and 10% dried whey, respectively for experiments 1 and 2 in phase 2 (15 to 35 d). In experiment 1, L-carnitine at levels of 0, 500, and 1000 ppm was combined with 0 or 10% soybean oil in phase 1, levels were reduced by 50% in phase 2 ...


Feed Mills For On-Farm Feed Manufacturing, James P. Murphy, Joseph P. Harner Jan 1990

Feed Mills For On-Farm Feed Manufacturing, James P. Murphy, Joseph P. Harner

Kansas Agricultural Experiment Station Research Reports

Quality feed can be manufactured on farm using hammer or roller mills for particle size reduction and volumetric or weighing devices for proportioning ingredients. An understanding of each of the seven steps involved will enhance the ability to manufacture a quality feed for maximum feed efficiency at a feasible price.; Swine Day, Manhattan, KS, November 15, 1990


Protein Sparing Effect Of A Fermentation Product In Pig Diets From Weaning To Market, J A. Swanson, Joe D. Hancock Jan 1990

Protein Sparing Effect Of A Fermentation Product In Pig Diets From Weaning To Market, J A. Swanson, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred eighty pigs (avg wt of 21.11b) were used in an experiment to determine if a fermentation product improves performance and reduces last rib fat thickness in pigs when added to a low-protein diet regimen. Treatments were: 1) positive control (19-16-14% crude protein regimen during the nursery-growing-finishing phases); 2) positive control plus 2.50 lb/ton fermentation product; 3) low-protein regimen (17-14-12% crude protein during the nursery-growing-finishing phases); 4) low-protein regimen plus 1.25 lb/ton fermentation product; 5) low-protein regimen plus 2.50 lb/ton fermentation product; and 6) low-protein regimen plus 5.00 lb/ton fermentation ...


Utilization Of Surimi-Like Products From Pork With Sex-Odor In Restructured, Precooked Pork Roasts, C M. Garcia Zepeda, Curtis L. Kastner, Melvin C. Hunt, P B. Kenney, J R. Schwenke, D S. Schleusener, Donald H. Kropf Jan 1990

Utilization Of Surimi-Like Products From Pork With Sex-Odor In Restructured, Precooked Pork Roasts, C M. Garcia Zepeda, Curtis L. Kastner, Melvin C. Hunt, P B. Kenney, J R. Schwenke, D S. Schleusener, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Surimi-like materials from boar and sow muscle and Alaska pollack surimi were evaluated at a 5% inclusion level in a restructured, precooked (158°F) pork roast. Meat batches were formulated to contain 95% chunked ham muscles and either 5 or 0% surimi-like or surimi binder, either 0.2 or 1.0% NaCl, and 0.5% phosphate. The surimi washing process did not remove or decrease boar taint intensity of the binder or enhance instrumental and sensory textural characteristics of the finished product. Products without binder were comparable or superior in textural and microbial characteristics to those with binders. Increasing salt ...


Effects Of Modified Atmosphere Packaging And Carcass Chill Rate On Pork Loins, O Sorheim, Melvin C. Hunt, M Menninen, K E. Warren, Donald H. Kropf Jan 1990

Effects Of Modified Atmosphere Packaging And Carcass Chill Rate On Pork Loins, O Sorheim, Melvin C. Hunt, M Menninen, K E. Warren, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Use of 10% oxygen in a modified gas atmosphere package resulted in more off-odor, higher microbial counts, and a less desirably colored loin and loin chops. Furthermore, it reduced chop display life and is not recommended.; Swine Day, Manhattan, KS, November 15, 1990


Bone-In Pork Loins: Modified Atmosphere Packaging To Extend Shelf-Life, K E. Warren, Melvin C. Hunt, C L. Marksberry, O Sorheim, Donald H. Kropf Jan 1990

Bone-In Pork Loins: Modified Atmosphere Packaging To Extend Shelf-Life, K E. Warren, Melvin C. Hunt, C L. Marksberry, O Sorheim, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Modified atmosphere packaging with 100% carbon dioxide was used to investigate changes in daily gas composition, as well as the influence of fat trim level and location of loin in the box on shelf life characteristics. Length of storage was the primary factor influencing shelf life of whole loins and their retail chops. Although microbial qualities was acceptable in loins stored up to d 19, sirloin and blade discoloration was obvious at 11-13 d. Storage for more than 11 d reduced the display life of retail chops to 1-2 d. Shelf life characteristics of bone-in pork loins were superior with ...