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Kansas Agricultural Experiment Station Research Reports

1999

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Articles 1 - 30 of 112

Full-Text Articles in Life Sciences

Increasing Pregnancy Rates At First Service In Dairy Cows Exposed To High Ambient Temperatures Before And After Calving, J. A. Cartmill, Timothy G. Rozell, S. Z. El-Zarkouny, John F. Smith Jan 1999

Increasing Pregnancy Rates At First Service In Dairy Cows Exposed To High Ambient Temperatures Before And After Calving, J. A. Cartmill, Timothy G. Rozell, S. Z. El-Zarkouny, John F. Smith

Kansas Agricultural Experiment Station Research Reports

Cows exposed to heat stress before or after calving or both are prone to reduced fertility because of reduced expression of estrus and less embryonic survival if pregnant. Cows calving on three dairy farms during the summer of 1998 were studied. First inseminations were programmed to occur between 50 and 70 days in milk using the Ovsynch protocol, which included a timed artificial insemination. Control cows were treated similarly but did not receive the second injection of gonadotropin-releasing hormone and were inseminated only after estrus was detected (Select Synch). The Ovsynch protocol increased pregnancy rates from 17.6 to 31 ...


Effects Of Rumensin And Bovatec On Growth, Feed Intake, And Feed Efficiency In Dairy Calves, J. A. Isch, Michael V. Scheffel, Evan C. Titgemeyer, E. C. Thomas Jan 1999

Effects Of Rumensin And Bovatec On Growth, Feed Intake, And Feed Efficiency In Dairy Calves, J. A. Isch, Michael V. Scheffel, Evan C. Titgemeyer, E. C. Thomas

Kansas Agricultural Experiment Station Research Reports

One hundred Holstein heifers were used to examine the effects of monensin (Rumensin®) and lasalocid (Bovatec®) included in calf starter and grower diets. Heifers were assigned alternately at birth to a starter feed containing either Rumensin (28 g/ton, 90% dry matter basis) or Bovatec (40 g/ton, 90% dry matter basis). The Bovatec group was switched to a starter feed containing 28 g Bovatec/ton (90% dry matter basis) at 6 weeks of age. Both groups were switched at 8 weeks of age to grower diets designed to deliver 100 mg/head/day of either Rumensin or Bovatec. No ...


The Use Of Somatic Cell Counts To Identify Cows With Subclinical Mastitis At Calving, J. M. Sargeant, B. J. Pulkrabek, Michael V. Scheffel, A. F. Park Jan 1999

The Use Of Somatic Cell Counts To Identify Cows With Subclinical Mastitis At Calving, J. M. Sargeant, B. J. Pulkrabek, Michael V. Scheffel, A. F. Park

Kansas Agricultural Experiment Station Research Reports

The dynamics of somatic cell counts during the first 10 days in milk were compared among udder quarters of cows with intra-mammary infection at the time of calving and those with no infection present. The study group consisted of 81 cows calving at the Kansas State University dairy research herd between July of 1998 and February of 1999. Cows with an intramammary infection had greater, average, somatic cell counts at calving, and this difference continued throughout the 10-day period. Using a breakpoint of 1,000,000 somatic cells/ml at calving to select animals for culture would have correctly selected ...


Performance Of Lactating Dairy Cattle Housed In A Four-Row Freestall Barn Equipped With Three Different Cooling Systems, John F. Smith, Joseph P. Harner, B. J. Pulkrabek, D. T. Mccarty Jan 1999

Performance Of Lactating Dairy Cattle Housed In A Four-Row Freestall Barn Equipped With Three Different Cooling Systems, John F. Smith, Joseph P. Harner, B. J. Pulkrabek, D. T. Mccarty

Kansas Agricultural Experiment Station Research Reports

Ninety-three multiparous Holstein cows averaging 130 days in milk (DIM) were utilized to evaluate three cooling treatments installed in separate pens of a four-row freestall barn in northeast Kansas during the summer of 1999. Treatments were: 1) a double row of 36-inch fans spaced at 24-ft intervals over the freestalls; 2) a single row of 36-inch fans spaced at 24-ft intervals over the freestalls and over the cow feed line; and 3) a double row of 36-inch fans spaced at 24-ft intervals over the freestalls and a single row over the feed line. Each pen was equipped with identical sprinkler ...


Performance Of Lactating Dairy Cattle Housed In Two-Row Freestall Barns Equipped With Three Different Cooling Systems, John F. Smith, Joseph P. Harner, B. J. Pulkrabek, D. T. Mccarty Jan 1999

Performance Of Lactating Dairy Cattle Housed In Two-Row Freestall Barns Equipped With Three Different Cooling Systems, John F. Smith, Joseph P. Harner, B. J. Pulkrabek, D. T. Mccarty

Kansas Agricultural Experiment Station Research Reports

One hundred fifty-nine Holstein cows (66 primiparous and 93 multiparous) were assigned to each of three different cooling systems installed in two-row freestall barns on a northeast Kansas dairy. One barn was equipped with a row of five 48-inch fans mounted every 40 ft over the freestalls and a row of 10 36-inch fans mounted every 20 ft over the cow feed line. Another barn was equipped with five 48-inch fans mounted over the freestalls. Both of these barns were also equipped with identical sprinkler systems mounted over the feed line. The third barn was equipped with a row of ...


Pregnancy Rates In Dairy Cattle After Three Different, Timed, Breeding Protocols, J. A. Cartmill, S. Z. El-Zarkouny, G. C. Lamb, Jeffrey S. Stevenson Jan 1999

Pregnancy Rates In Dairy Cattle After Three Different, Timed, Breeding Protocols, J. A. Cartmill, S. Z. El-Zarkouny, G. C. Lamb, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Synchronizing ovulation enables dairy producers to inseminate cows by appointment rather than after detected estrus. Three different, timed artificial insemination protocols using different combinations of prostaglandin F2α and gonadotropin-releasing hormone were used to synchronize ovulation in 702 lactating Holstein cows. Cyclicity, pregnancy rate, and embryonic survival rate from each treatment were compared. Our results indicate that all three treatments produced acceptable pregnancy rates in first lactation cows. However, for cows in their second or greater lactation, the treatment using prostaglandin F2α 12 days before the Ovsynch protocol improved pregnancy rates more than the other two.; Dairy Day, 1999, Kansas State ...


Kansas Fertilizer Research 1998, Ray E. Lamond Jan 1999

Kansas Fertilizer Research 1998, Ray E. Lamond

Kansas Agricultural Experiment Station Research Reports

No abstract provided.


Effects Of Different Zinc Oxide Sources On Weanling Pig Growth Performance, J C. Woodworth, J T. Sawyer, C A. Maxwell, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1999

Effects Of Different Zinc Oxide Sources On Weanling Pig Growth Performance, J C. Woodworth, J T. Sawyer, C A. Maxwell, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 192 pigs (initially 13.61b and 18 d of age) were used in a 27-d growth assay to determine the effects of different ZnO sources on weanling pig growth performance. The four experimental treatments consisted of a control diet or three diets containing Zn from ZnO from one of three different sources. For the entire trial, no differences occurred in growth performance of pigs fed the different ZnO sources; however, all sources increased ADG and ADFI compared to pigs fed the control diet. Economics and ingredient availability should dictate which ZnO source to use in weanling pig ...


Additional L-Carnitine In The Gestating Sow Diet Improves Carcass Characteristics Of The Offspring, R E. Musser, Duane L. Davis, K Q. Owen, R E. Campbell, S Hanni, J S. Bauman, M Heintz, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 1999

Additional L-Carnitine In The Gestating Sow Diet Improves Carcass Characteristics Of The Offspring, R E. Musser, Duane L. Davis, K Q. Owen, R E. Campbell, S Hanni, J S. Bauman, M Heintz, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 232 sows was used to determine the effects of an additional 50 ppm of L-carnitine in the gestation diet on sow and offspring performance. No differences were observed in either the immediate or subsequent number of pigs born or born alive per litter (P>.l 0). No differences were observed in pig weight at birth, weaning, or d 60 of age. Muscle fiber analysis of newborn pigs indicated a tendency for a larger cross-sectional area of the semitendinosus muscle; increased primary (slow-twitch, red) fibers; and a higher ratio of primary to secondary fibers (fast-twitch, white). No differences ...


A New Treatment For Neonatal Scours, R L. Sedlacek, E K. O'Donnell, A K. Singh, R J. Bridges, Metre D.C. Van, Bruce D. Schultz Jan 1999

A New Treatment For Neonatal Scours, R L. Sedlacek, E K. O'Donnell, A K. Singh, R J. Bridges, Metre D.C. Van, Bruce D. Schultz

Kansas Agricultural Experiment Station Research Reports

Scours account for significant losses to the US swine industry every year. A common treatment for scours is the administration of broad-spectrum antibiotics, a practice with increasing unpopularity in the eyes of consumers. Currently, no treatment is available to reduce or eliminate the fluid losses associated with scours that is both inexpensive and easy to use. In the present study, a variety of prospective drugs were used to determine if a single compound might inhibit the effects of bacterial toxins in a laboratory setting. The results indicate that a new class of drugs, which we call DASUs, likely will prove ...


On-Farm Salmonella Testing: Perspectives Of Pork Producers, D R. Mark, Michael A. Boland, John A. Fox Jan 1999

On-Farm Salmonella Testing: Perspectives Of Pork Producers, D R. Mark, Michael A. Boland, John A. Fox

Kansas Agricultural Experiment Station Research Reports

Pork producers in Kansas were surveyed to determine their attitudes regarding onfarm Salmonella testing and to provide estimates ofthe costs ofcollecting hide, fecal, or blood samples from live pigs. Veterinarians and Cooperative Extension Service personnel were cited most frequently as the most preferred groups for monitoring and verification. Results ofthe survey indicate that pork producers may be willing to conduct on-farm Salmonella testing, if they can recover the costs of sample collection. The sampling costs ranged from $1.76 to $4.72 per pig, depending on the method of sample collection.; Swine Day, Manhattan, KS, November 18, 1999


Lack Of Interaction Between Lysine Levels Fed In Growing And Finishing Diets, Rops Steve, Heintz Marty, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1999

Lack Of Interaction Between Lysine Levels Fed In Growing And Finishing Diets, Rops Steve, Heintz Marty, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,200 pigs were used to determine whether dietary lysine level fed in the growing phase influenced the response to lysine level fed in the finishing phase. Pigs were fed either an adequate or low lysine level during the growing (60 to 170 lb) and/ or finishing phase (170 to 265 lb). Feeding a deficient lysine level decreased ADG and F/G during the phase when the deficient diet was fed; however, lysine level fed in the growing phase did not influence the response in the finishing phase. Carcass parameters were influenced more by the lysine level ...


Lactic Acid, Hot Water, And Microwave Treatment To Reduce Natural Microflora And Pathogens In Vacuum-Packaged Beef, D.H. Kang, B.A. Crozier-Dodson, G. Jiang, X. Shi, Daniel Y.C. Fung Jan 1999

Lactic Acid, Hot Water, And Microwave Treatment To Reduce Natural Microflora And Pathogens In Vacuum-Packaged Beef, D.H. Kang, B.A. Crozier-Dodson, G. Jiang, X. Shi, Daniel Y.C. Fung

Kansas Agricultural Experiment Station Research Reports

Combined lactic acid (2%), hot water, and microwave treatments were used to reduce natural microflora and the pathogens Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes in vacuum-packaged beef. Hot water at 158EF followed by vacuum packaging and 5 sec. of microwave were acceptable for microbial reduction. Dipping inoculated meat for 20 sec. into 2% room temperature lactic acid prior to that treatment at 158EF reduced E. coli O157:H7 by 1.05 log CFU/cm2, S. typhimurium by .7 log CFU/cm2, and L. monocytogenes by .85 log CFU/cm2 (CFU is colony forming unit). One log equals ...


Incidence Of Premature Browning During Cooking In Ground Beef Purchased At Retail, Melvin C. Hunt, K.M. Killinger, R.E. Campbell Jan 1999

Incidence Of Premature Browning During Cooking In Ground Beef Purchased At Retail, Melvin C. Hunt, K.M. Killinger, R.E. Campbell

Kansas Agricultural Experiment Station Research Reports

We measured the incidence of premature browning during cooking in ground beef that was purchased from retail supermarkets and prepared using common household procedures. Patties made from meat on the outer portion of the packages purchased in the morning had the highest incidence of premature browning (62.5%). Patties from inner portions of packages purchased in the afternoon, refrigerated, and prepared the next morning were more (P<0.05) purple and had the lowest incidence (25%) of premature browning. Overall incidence of premature browning averaged 47%. Because internal cooked color of ground beef is such an unreliable indicator of doneness, temperature measurements should be used to verify that safe endpoint temperatures have been reached.


Color Stability Of Steaks From Carcasses Vascularly Infused Immediately After Exsanguination, Melvin C. Hunt, J.J. Schoenbeck, T.E. Dobbels, Michael E. Dikeman, Sally L. Stroda Jan 1999

Color Stability Of Steaks From Carcasses Vascularly Infused Immediately After Exsanguination, Melvin C. Hunt, J.J. Schoenbeck, T.E. Dobbels, Michael E. Dikeman, Sally L. Stroda

Kansas Agricultural Experiment Station Research Reports

Hereford x Angus carcasses were infused with a solution of either sugar/phosphate or calcium chloride immediately after exsanguination to determine effects on color stability during retail display. A calcium chloride solution darkened the cuts and reduced color stability. A sugar/phosphate blend made steaks appear lighter red (more desirable), and their color stability was equal to that of the noninfused control.


Sources Of Variability In Fed-Cattle Grid Pricing, J.L. Graff, Ted C. Schroeder Jan 1999

Sources Of Variability In Fed-Cattle Grid Pricing, J.L. Graff, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Price variability among carcasses increases with a change from live-weight to dressedweight to grid pricing. Grid pricing has the largest price variability, because the price for each carcass is influenced by all of the components of the grid, rather than all cattle selling for the same live or dressed price. Therefore, producers selling on a grid need to have knowledge about the expected carcass merit of their cattle. We used data on 11,703 head of cattle to determine which grid pricing components influence price variability the most and to measure how much price variability increases from grid pricing, relative ...


An Efficiency Analysis Of Cattle Backgrounding Operations In Kansas, L. Gow, Michael R. Langemeier Jan 1999

An Efficiency Analysis Of Cattle Backgrounding Operations In Kansas, L. Gow, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

As the structure of the beef industry changes, understanding its efficiency, cost, and profitability relationships is important. This study evaluates the relative efficiency of a sample of Kansas farm backgrounding and backgrounding/finishing operations for 1995- 1997. No commercial feeders were included. On average, backgrounding operations were 71% technically efficient, 68% allocatively efficient, 83% scale efficient, and 39% overall efficient. The results suggest that Kansas backgrounding operations could reduce their cost by 61%, if all farms were producing at the lowest possible cost. On average, backgrounding/finishing operations were 84% technically efficient, 79% allocatively efficient, 90% scale efficient, and 60 ...


Evaluation Of Springtime Deworming Strategies For Beef Cow/Calf Pairs, M.L. Pfeifer, J.C. Baker, J.T. Seeger, Dale A. Blasi, Glenn E. Newdigger Jr. Jan 1999

Evaluation Of Springtime Deworming Strategies For Beef Cow/Calf Pairs, M.L. Pfeifer, J.C. Baker, J.T. Seeger, Dale A. Blasi, Glenn E. Newdigger Jr.

Kansas Agricultural Experiment Station Research Reports

A field study was conducted at three different locations in south central Kansas to determine the effects of Dectomax® (DECTO) or Ivomec PO® (IVO) compared to no treatment (CONT) on the liveweight gain and reproductive performance of beef cow/calf pairs. Across all three locations, no differences occurred among treatments in cow and calf live weight gain, cow body condition, pregnancy rate, or age of fetus (P>.05). Low egg counts suggest that the parasite load was too low for a response to parasite control.


Synchronizing Estrus In Replacement Beef Heifers Using Select Synch, Mga, And Pgf2, G.C. Lamb, J.A. Cartmill, B.A. Hensley, S. El-Zarkouny, J.S. Heldt, T.J. Marple, Jeffrey S. Stevenson Jan 1999

Synchronizing Estrus In Replacement Beef Heifers Using Select Synch, Mga, And Pgf2, G.C. Lamb, J.A. Cartmill, B.A. Hensley, S. El-Zarkouny, J.S. Heldt, T.J. Marple, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The Select Synch protocol (GnRH at day - 7, PGF2 at day 0, AI at detected heat) was compared to protocols using either MGA + prostaglandin (Colorado system) or two injections of prostaglandin to synchronize estrus in replacement heifers at three locations. Percentage of heifers detected in heat before, during, or after the target breeding week was not different among treatments but varied in percentages among locations. Overall conception rates ranged from 64 to 69%. Pregnancy rates varied from 46 to 56% and tended to be greatest in the MGA + PGF2" treatment. Costs of these treatments ranged from $3.50 to $8 ...


Prevalence Of Ocular Lesions In Cattle From A Kansas Sale Barn, H.J. Davidson, Gerald L. Stokka, Tom Taul Jan 1999

Prevalence Of Ocular Lesions In Cattle From A Kansas Sale Barn, H.J. Davidson, Gerald L. Stokka, Tom Taul

Kansas Agricultural Experiment Station Research Reports

This cross-sectional evaluation of cattle from a sale barn was completed to identify the prevalence of ocular lesions. A total of 100 cattle (91 cows and 9 bulls) was examined as they were being processed through a Kansas sale barn. Ocular lesions were found in 47%. The most frequently identified lesions were corneal scars, found in 26%. Although the exact cause of the scars could not be determined, they were similar in appearance to scars caused by infectious bovine keratoconjunctivitis (IBK) or pinkeye. The second most common lesion was squamous cell carcinoma (SCC), identified in 14%. Cataracts were identified in ...


Fixed-Time Inseminaton Of Suckled Beef Cows. 2. Cosynch And Progesterone, G.C. Lamb, J.A. Cartmill, B.A. Hensley, T.J. Marple, Jeffrey S. Stevenson Jan 1999

Fixed-Time Inseminaton Of Suckled Beef Cows. 2. Cosynch And Progesterone, G.C. Lamb, J.A. Cartmill, B.A. Hensley, T.J. Marple, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The Cosynch protocol (GnRH 7 days before and again 48 h after PGF2" with AI at the second GnRH injection) produced pregnancy rates in suckled beef cows that exceeded 50% without heat detection and with only three handlings of all cows. The addition of an intravaginal progesterone insert to the Cosynch protocol improved pregnancy rates in two of the three breeds of cows studied.


Genetic Associations Of Growth And Lactation Curve Components In Polled Hereford Cattle, J.B. Jr. Glaze, R.R. Schalles Jan 1999

Genetic Associations Of Growth And Lactation Curve Components In Polled Hereford Cattle, J.B. Jr. Glaze, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Weight and milk production records of Polled Hereford cows born from 1967 to 1979 were used to fit growth and lactation curves. A multiple-trait, derivative-free, restricted maximum likelihood (MTDFREML) procedure, utilizing a full animal model, was used to estimate variances and covariances for the components of the growth and lactation curves. For the growth curve, W=A+B(1-e-kt) components A, B, and k each had moderate to high heritabilities ranging from .35 to .72. The genetic correlation between growth curve components A and B was positive (.42), whereas the genetic correlations between A and K (-.34) and between B ...


Evaluating Corn And Corn Gluten Feed In Growing Cattle Diets As A Replacement For Roughage, N.G. Whitham, C.M. Coetzer, R.D. Hunter, James S. Drouillard, Dale A. Blasi, Evan C. Titgemeyer Jan 1999

Evaluating Corn And Corn Gluten Feed In Growing Cattle Diets As A Replacement For Roughage, N.G. Whitham, C.M. Coetzer, R.D. Hunter, James S. Drouillard, Dale A. Blasi, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A 99-day study was conducted to evaluate growth performance of 216 beef heifers (average 524 lb) fed traditional roughage-based diets at 2.75% of body weight or limit-fed highconcentrate diets containing corn or corn gluten feed fed at 2.0% of body weight. Dietary treatments included roughage plus corn, roughage plus corn gluten feed, limit-fed corn, limitfed corn with added Smartamine®-ML (providing 10 g/day ruminally protected lysine), limitfed corn gluten feed, and limit-fed corn gluten feed with added Smartamine. Adding Smartamine-ML to the diet did not improve performance significantly compared to unsupplemented groups (P>.30). Limit-fed diets containing ...


Effect Of Level Of Non-Enzymatically Browned Soybean Meal In Limit-Fed, Grain Sorghum Diets For Growing Heifers, R.D. Hunter, James S. Drouillard, Evan C. Titgemeyer Jan 1999

Effect Of Level Of Non-Enzymatically Browned Soybean Meal In Limit-Fed, Grain Sorghum Diets For Growing Heifers, R.D. Hunter, James S. Drouillard, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Grain sorghum-based diets were fed in a limit-feeding trial involving 72 heifers for 100 days. Heifers were fed one of four diets designed to provide 12.5%, 14.9%, 17.3%, and 19.6% crude protein. Protein levels in the diets were altered by providing up to 20% of the diet as non-enzymatically browned soybean meal (Soypassâ) at the expense of dry-rolled grain sorghum. Performance of heifers (gain and feed efficiency) tended (P=.15) to improve linearly as protein concentration of the diets was increased. The greatest improvements were observed at concentrations up to 17.3%.


Using Arsoy™ As A Protein Supplement In Growing Cattle Diets, T.T. Marston, K.K. Kreikemeier, L.E. Wankel, G.L. Huck, T.J. Wistuba Jan 1999

Using Arsoy™ As A Protein Supplement In Growing Cattle Diets, T.T. Marston, K.K. Kreikemeier, L.E. Wankel, G.L. Huck, T.J. Wistuba

Kansas Agricultural Experiment Station Research Reports

Arsoy™ Soybean Feed is a by-product from the manufacture of soy protein isolate. It contains nearly 30% crude protein, but there is little documentation about its feeding value. Therefore, we fed basal growing diets of corn silage and stover to 196 crossbred heifers and supplemented those diets with soybean meal, Arsoy, or a combination of soybean meal and high moisture corn to determine the feeding value of Arsoy. Our results suggest that Arsoy can be substituted for soybean meal in growing cattle diets, without any negative impact on animal performance, dry matter intake, or feed efficiency.


Soy Molasses As A Feed Ingredient For Finishing Cattle, C.K. Schoenholz, R.D. Hunter, T.A. Nutsch, James S. Drouillard Jan 1999

Soy Molasses As A Feed Ingredient For Finishing Cattle, C.K. Schoenholz, R.D. Hunter, T.A. Nutsch, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Eighty Angus x Hereford cross steers were used in an individual feeding study to compare soybean molasses (a by-product of soybean meal manufacture) and soybean meal as ingredients in finishing diets containing flaked corn or a combination of high-moisture corn and dryrolled corn. Supplementation with soy molasses resulted in higher (P<.05) feed intakes in the cattle fed the high-moisture corn diet but had no effect on intakes of cattle fed the flaked diets. No such changes were noted for supplementation with soybean meal. In general, carcass traits were not influenced by level or type of supplement. Soy molasses appears to have feed value equal to or greater than that of soybean meal when compared on a protein basis. Its value as a source of supplemental nutrients appears to be greater in steam-flaked diets than in high-moisture diets.


Effect Of Ruminal Versus Postruminal Administration Of Degradable Protein On Utilization Of Low-Quality Forage By Beef Steers, C.A. Bandyk, R.C. Cochran, T.A. Wickersham, C.G. Farmer, Evan C. Titgemeyer Jan 1999

Effect Of Ruminal Versus Postruminal Administration Of Degradable Protein On Utilization Of Low-Quality Forage By Beef Steers, C.A. Bandyk, R.C. Cochran, T.A. Wickersham, C.G. Farmer, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Twelve ruminally fistulated steers were used to evaluate the effects of supplying a highly degradable protein source (casein) both ruminally and postruminally on intake and digestibility of low-quality native hay. Both protein supplementations substantially increased voluntary intake, organic matter digestion, rate of passage, ruminal ammonia, and blood urea concentrations, but intakes were considerably greater when protein was given ruminally as opposed to postruminally.


Effects Of Diet Processing Method On Growth Performance Of Segregated Early-Weaned Pigs, J T. Sawyer, J C. Woodworth, P R. O'Quinn, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 1999

Effects Of Diet Processing Method On Growth Performance Of Segregated Early-Weaned Pigs, J T. Sawyer, J C. Woodworth, P R. O'Quinn, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 28-d growth trial was conducted to evaluate the effects ofdifferent diet processing methods on growth perfornlance of segregated early-weaned pigs. From d 0 to 14, pigs were fed diets processed by one of four different methods: meal, universal pellet cooker CUPC), expanded, or pelleted. Pigs fed pelleted or UPC diets had improved ADO and F/G, and pigs fed meal diets had the poorest ADO and F/G. From d 14 to 28, pigs were fed one of six diets consisting of complex meal and expanded diets and two (least cost and complex) UPC and pelleted diets. From d ...


Influence Of Dietary Supplementation Of Modified Tall Oil, Chromium Nicotinate, And L-Carnitine On Pork Chop Display Color Stability, Warnerbratzler Shear, And Sensory Panel Traits, A T. Waylan, P R. O'Quinn, J C. Woodworth, K Q. Owen, John A. Unruh, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1999

Influence Of Dietary Supplementation Of Modified Tall Oil, Chromium Nicotinate, And L-Carnitine On Pork Chop Display Color Stability, Warnerbratzler Shear, And Sensory Panel Traits, A T. Waylan, P R. O'Quinn, J C. Woodworth, K Q. Owen, John A. Unruh, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred (PIC) gilts were used to determine the influence of feeding modified tall oil (MTO, 0 or .5% of diet), chromium nicotinate (0 or 50 ppb), and L-carnitine (0 or 50 ppm) on display color stability, Warner-Bratzler shear, and sensory panel traits of pork chops. Dietary additions of MTO, chromium nicotinate, and L-camitine to growing and finishing swine diets had minimal effects on quality characteristics and display color stability of pork chops. Therefore, producers probably can take advantage of any production or carcass cutability improvement from these feed supplements without affecting muscle quality of pork chops.; Swine Day, Manhattan ...


Manure Composition From Kansas Swine Lagoons, G L. Keeler, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach, Steven S. Dritz Jan 1999

Manure Composition From Kansas Swine Lagoons, G L. Keeler, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Analysis of 41 manure samples from Kansas swine lagoons revealed that nutrient concentrations were higher than previously reported values from the Nebraska Cooperative Extension Service and the Midwest Planning Service. In addition, high standard deviations indicated that considerable variation exists in composition of waste in swine lagoons. Although means from some lagoons were lower, most producers had manure that analyzed higher than previously published values from other sources. These data reveal the imnportance of individual analysis of lagoons for proper application to cropland to maximize yield and environmental stewardship. Additional research needs to be completed to provide a more detailed ...