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Life Sciences

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2006

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Kansas Fertilizer Research 2005, Dale F. Leikam Jan 2006

Kansas Fertilizer Research 2005, Dale F. Leikam

Kansas Agricultural Experiment Station Research Reports

No abstract provided.

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Effects Of Four Soybean Meal Products On Lactational Performance Of Dairy Cows (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, John E. Shirley Jan 2006

Effects Of Four Soybean Meal Products On Lactational Performance Of Dairy Cows (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Thirty-two multiparous Holstein cows (152 days in milk, producing 90 lb/day of milk at the beginning of the study) were used in a 4 x 4 Latin square design with 28-day periods to investigate cow responsiveness to supple-mental ruminally undegraded protein from 4 soybean meal products. The 4 products were: solvent soybean meal (SSBM), expeller soy-bean meal (ESBM), lignosulfonate-treated soybean meal (LSBM), and SSBM treated with 0.05% baker's yeast and toasted at 212ºF (YSBM). Diets were formulated by substitut-ing all SSBM and part of ground corn with YSBM, ESBM, or LSBM to yield isonitroge-nous diets. Diets were formulated to provide …

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Ovarian Responses And Conception Rates In Response To Gnrh, Hcg, And Progesterone (2006), M.A. Portaluppi, D.E. Tenhouse, A. Lloyd, D.R. Eborn Jan 2006

Ovarian Responses And Conception Rates In Response To Gnrh, Hcg, And Progesterone (2006), M.A. Portaluppi, D.E. Tenhouse, A. Lloyd, D.R. Eborn

Kansas Agricultural Experiment Station Research Reports

We hypothesized that increasing concentrations of progesterone after artificial insemination (AI) would increase fertility. Our objective was to assess changes in ovarian structures, incidence of ovulation, and change in serum progesterone in response to GnRH, human chorionic gonadotropin (hCG), or exogenous progesterone (controlled internal drug release; CIDR insert) treatment, beginning 4 to 9 days after AI (d 0) and again 7 days later (Exp. 1). Blood was collected from 753 cows in 3 herds on days 0 and 7. Ovaries of 162 cows in 1 herd were scanned and mapped to confirm the presence a corpus luteum (CL), and cows …

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Effects Of Spring Pasture Burning, Pasture Deworming, And Grain Supplementation On Performance Of Stocker Steers Grazing Native Flinthills Pasture (2006), B.B. Barnhardt, J.C. Forcherio, R.R. Scott, Christopher D. Reinhardt, Dale A. Blasi Jan 2006

Effects Of Spring Pasture Burning, Pasture Deworming, And Grain Supplementation On Performance Of Stocker Steers Grazing Native Flinthills Pasture (2006), B.B. Barnhardt, J.C. Forcherio, R.R. Scott, Christopher D. Reinhardt, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

A grazing study was conducted using 445 crossbred beef steers (496 lb) to determine the benefits of feeding a grain-based supplementon burned and unburned native pasture, with and without a Safe-Guard (fenbendazole) treatment while on pasture. Treatments consisted of mineral only, mineral with Safe-Guard treatment at day 29, and a supplement based on dry-rolled corn with a Safe-Guard treatment on day 29. All three treatments provided GainPro to the steers. Twelve pastures were used, six that were burned and six that were not burned during the month before the start of the trial. The control pastures were stocked at 272 …

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Examining Cost Of Gain In Kansas Feedlots (2006), A. Babcock, R. Jones, Michael R. Langemeier Jan 2006

Examining Cost Of Gain In Kansas Feedlots (2006), A. Babcock, R. Jones, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

This study had three primary objectives: 1) to examine the effects that individual performance and ingredient price factors have on cost of gain; 2) to quantify the annual and/or seasonal trend in cost of gain in Kansas feedlots; and 3) to examine the difference in cost of gain between steers and heifers. For both steers and heifers, corn price was significant and positive, indicating that as the price of corn increases so does cost of gain. The price of hay, which is a feedstuff in the majority of feedlot diets, has a positive, but insignificant, effect on feeding cost of …

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Southwest Research-Extension Center Field Day 2006 Forage Research Supplement Jan 2006

Southwest Research-Extension Center Field Day 2006 Forage Research Supplement

Kansas Agricultural Experiment Station Research Reports

This publication is a supplement to Field Day 2006, Southwest Research-Extension Center Report of Progress SRP 961 from the Kansas Agricultural Experiment Station.

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The Effects Of Frequent Out-Of-Feed Events On Growth Performance Of Nursery, Growing, And Finishing Pigs, S K. Linneen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2006

The Effects Of Frequent Out-Of-Feed Events On Growth Performance Of Nursery, Growing, And Finishing Pigs, S K. Linneen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An "out-of-feed” event is defined as a period of time that pigs do not have access to feed as a result of late feed delivery (feeders running empty) or bridging of bulk bins, feed lines, or feeders. To determine the effects of these out-of-feed events on pig growth performance, nursery and growing-finishing pig studies were conducted. In Exp. 1, 190 pigs (initial wt 14.0 lb) were allotted to one of four experimental treatments. Treatments included a 20-hour feed withdrawal for 1, 2, or 3 randomly selected times during the 35-d trial or a control treatment in which feeders were never …

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Comparison Of Concept Pr 100 And Spray-Dried Animal Plasma On Nursery Pig Performance (2006), E J. Wiedmann, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

Comparison Of Concept Pr 100 And Spray-Dried Animal Plasma On Nursery Pig Performance (2006), E J. Wiedmann, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

One hundred eighty weanling pigs (initially 12.1 lb and 18 ± 2 d of age) were used in a 28-d growth assay to determine if Concept PR 100 (CNPR), a plant-based protein ingredient with added synthetic amino acids and nucleic acids, can replace spray-dried animal plasma (SDAP) in nursery pig diets. The five experimental treatments were: 1) control (no specialty protein source); 2) 2.5% SDAP; 3) 5.0% SDAP; 4) 2.5% CNPR; and 5) 5.0% CNPR. Treatment diets were fed from d 0 to 14 after weaning, with a common diet fed to all pigs from d 14 to 28 after …

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Effect Of Increased Dietary Lysine On Growth Performance Of Gilts Fed Ractopamine Hcl (Paylean) In A Commercial Facility (2006), C R. Neill, C W. Hastad, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2006

Effect Of Increased Dietary Lysine On Growth Performance Of Gilts Fed Ractopamine Hcl (Paylean) In A Commercial Facility (2006), C R. Neill, C W. Hastad, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,915 gilts (PIC L337 × C22) were used in two 21-d experiments in a commercial research barn to evaluate the effects of lysine rates on pig growth and carcass performance when fed ractopamine HCl. There were 7 replicates per treatment and 21 to 24 pigs per pen in both experiments. In both experiments, treatments included a control diet formulated to 0.65% TID lysine without ractopamine HCl, and diets containing 0.75, 0.85, 0.95, 1.05, and 1.15% TID lysine with 5 ppm ractopamine. There were 983 (initially 217.4 lb) and 932 (initially 226.2 lb) gilts in Exp. 1 and …

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Determining The Effect Of Restricted Feed Intake On Developing Pigs Weighing Between 150 And 250 Lb, Fed Two Or Six Times Daily (2006), J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2006

Determining The Effect Of Restricted Feed Intake On Developing Pigs Weighing Between 150 And 250 Lb, Fed Two Or Six Times Daily (2006), J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two 42-d studies were conducted to evaluate the effect of restricted feed intake and feeding frequency on the performance of pigs weighing from 150 to 250 lb (initially 148 lb in Exp. 1 and 155 lb in Exp. 2). Our objective was to use the limit-fed finishing pig as a model for gestating sows who are also limit fed. In both experiments, pigs were housed in a 6 ×10 ft pen with half solid cement and half slatted flooring, and with one nipple waterer. The diet consisted of a diet based on cornsoybean meal, formulated to 1.15% TID lysine (1.29% …

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Evaluation Of Ruminal Degradability And Lysine Bioavailability Of Four Soybean Meal Products (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, R. Scott Beyer Jan 2006

Evaluation Of Ruminal Degradability And Lysine Bioavailability Of Four Soybean Meal Products (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, R. Scott Beyer

Kansas Agricultural Experiment Station Research Reports

Evaluations of four soybean meal (SBM) products were conducted. The products were: solvent SBM (SSBM), expeller SBM (ESBM), lignosulfonate-treated SBM (LSBM), and SSBM treated with 0.05% Baker's yeast and toasted at 212ºF (YSBM). In situ ruminal degradations of YSBM and LSBM were slower than those of SSBM or ESBM; thus, ruminally undegraded protein contents of YSBM and LSBM were greater than those of SSBM or ESBM. The ruminally undegraded protein of all SBM products had similar small intestine digestibility when as-sessed by susceptibility to enzymatic digestion in vitro. Available lysine contents, estimated chemically or using standard chick growth assay, were …

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Consumptive Water Usage Of Evaporative Pads (2006), C. Schmidt, John F. Smith, Joseph P. Harner, Michael J. Brouk Jan 2006

Consumptive Water Usage Of Evaporative Pads (2006), C. Schmidt, John F. Smith, Joseph P. Harner, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

Consumptive water usage by evaporative pads was measured during 7 days of a 3-week period at a Kansas (KS) dairy and a 2-day pe-riod at a North Dakota (ND) dairy. Water me-ters were installed between the water hydrants, and evaporative pads at each dairy, and were monitored. Data were recorded every 30 min-utes during 5 hr at the KS site and every 15 minutes during 1 to 2.5 hr at the ND site. Ra-tio of pad area to cow equaled 4.8 and 4.5 ft2 per cow at the KS and ND sites, respectively. Airflow rates through the pads were 1.2, …

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Characteristics Of Low-Profile Cross-Ventilated Freestalls (2006), Joseph P. Harner, John F. Smith, R. Millner Jan 2006

Characteristics Of Low-Profile Cross-Ventilated Freestalls (2006), Joseph P. Harner, John F. Smith, R. Millner

Kansas Agricultural Experiment Station Research Reports

The first low-profile cross-ventilated (LPCV) freestall building was stocked in fall 2005 in North Dakota. There currently are 3 other LPVC freestalls operational and 6 others under construction. The LPCV building offers some of the advantages of natural ventilated and tunnel ventilated freestalls. Natural or conventional tunnel ventilation buildings normally have from 2 to 6 rows of freestalls. The first LPCV building was an 8-row con-figuration, but wider LPCV buildings with 10, 12, 16, or 24 rows of freestalls are being con-sidered. Low-profile cross-ventilated freestall buildings are another option for dairy cattle housing. These facilities allow producers to have more …

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Delaying Injection Of Prostaglandin F2Α In An Ovsynch Protocol (2006), M.A. Portaluppi, D.E. Tenhouse, Jeffrey S. Stevenson Jan 2006

Delaying Injection Of Prostaglandin F2Α In An Ovsynch Protocol (2006), M.A. Portaluppi, D.E. Tenhouse, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine whether delaying the PGF2αinjection by 24 or 48 hr after the first GnRH injection in an Ovsynch protocol (from a standard 7 days) altered ovar-ian characteristics in lactating dairy cows. Es-trous cycles were synchronized in 36 Hol-steins after removal of a progesterone-releasing controlled internal drug release (CIDR) insert and injection of PGF2α. On day 6 of the estrous cycle, cows were administered 100 μg of GnRH (81 ± 2 days postpartum) and assigned randomly to receive a treatment in-jection of PGF2α7, 8, or 9 days later. Timed artificial insemination (TAI) was performed at 48 hr …

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Ovulation Potential Of Human Chorionic Gonadotropin Versus Gnrh (2006), B.S. Buttrey, M.G. Burns, Jeffrey S. Stevenson Jan 2006

Ovulation Potential Of Human Chorionic Gonadotropin Versus Gnrh (2006), B.S. Buttrey, M.G. Burns, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Experiments have shown human chorionic gonadotropin (hCG) to be more effective than GnRH as a means to induce ovulation of folli-cles. Dosages used, however, have differed greatly among experiments. A study was per-formed to determine the minimum effective dose of hCG needed to induce ovulation of ovarian follicles in dairy cows. Ovaries of Holstein cows were mapped by using transrec-tal ultrasonography 7 days before a bi-weekly pregnancy diagnosis. Cows were assigned randomly to treatments of saline, 100 μg of GnRH (2 mL of Fertagyl, Intervet, Inc., Mills-boro, NJ), or 500, 1000, 2000, or 3000 IU of hCG (0.5, 1, 2, …

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Accelerated And “Natural” Production-System Effects On Performance And Carcass Traits, L. Veloso, E. Loe, John A. Unruh Jan 2006

Accelerated And “Natural” Production-System Effects On Performance And Carcass Traits, L. Veloso, E. Loe, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Sixteen crossbred steers were used to compare performance and carcass characteristics of animals from accelerated and "natural" cattle production systems. Steers in the accelerated group (8 head) were implanted with Component TE-S (120 mg of trenbolone acetate, 24 mg estradiol), and received 200 mg/steer daily of ractopamine-HCl (Optaflexx) during the last 33 days of feeding. Tylan and Rumensin were also fed to the accelerated group. "Natural" steers were not implanted and were not given feed additives. Steers in the accelerated group had improved gain; heavier final weights; heavier carcasses; larger ribeye areas; and less kidney, pelvic, and heart fat. "Natural" …

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