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Kansas Agricultural Experiment Station Research Reports

1998

Other Animal Sciences

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Articles 1 - 30 of 97

Full-Text Articles in Life Sciences

Effects Of Increasing Amounts Of Supplemental Soybean Meal On Intake And Digestibility Of Tallgrass-Prairie Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson Jan 1998

Effects Of Increasing Amounts Of Supplemental Soybean Meal On Intake And Digestibility Of Tallgrass-Prairie Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson

Kansas Agricultural Experiment Station Research Reports

Twenty ruminally fistulated beef steers free-choice access to prairie hay were used to evaluate the effect of increasing level of soybean meal (SBM) on forage intake and digestion. Forage intake, total organic matter intake, and organic matter digestion were enhanced with increasing level of SBM supplementation, although forage intake and digestion appeared to plateau at higher levels. The concomitant rises in intake and digestion as supplemental SBM increased resulted in an increase in total digestible organic matter intake, with the largest response to the initial increment of supplement.

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Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Bermuda Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer Jan 1998

Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Bermuda Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A study with 16 ruminally fistulated beef steers fed Bermuda hay ad libitum showed that the intake and digestibility of hay was not influenced by increasing levels of supplemental degradable intake protein (DIP). However, the hay used in this study was of medium quality; lower quality Bermuda hay with lower CP may respond to supplemental DIP.

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Predicting Voluntary Forage Intake In Cattle, C.A. Bandyk, R.C. Cochran Jan 1998

Predicting Voluntary Forage Intake In Cattle, C.A. Bandyk, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

A large database was compiled of forage intake observations published during the past 20 years. Inputs included a wide range of factors believed to be related to voluntary intake. An analysis was designed to pinpoint which feed and animal characteristics were most valuable in predicting voluntary intake across a range of feeding situations and to compare the ability of different models to predict intake. Results emphasized the complexity of intake prediction. A wide range was evident in the variables included in the optimal models for predicting intake within different data subsets. In many cases, we observed that ratios between feed …

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Effects Of Processing Whole-Plant Corn Silage On Growth Performance And Nutrient Digestibility In Feedlot Cattle, T.J. Wistuba, M.K. Siefers, J.E. Turner, G.L. Huck, K.K. Bolsen, Matthew A. Young, Ronald V. Pope Jan 1998

Effects Of Processing Whole-Plant Corn Silage On Growth Performance And Nutrient Digestibility In Feedlot Cattle, T.J. Wistuba, M.K. Siefers, J.E. Turner, G.L. Huck, K.K. Bolsen, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Sixty crossbred heifers and 12 crossbred steers were used to evaluate the effects of mechanically processing (crushing the kernels of) whole-plant corn silage on feedlot performance and nutrient digestibility. The three treatments were: preensiled processed, postensiled processed, and nonprocessed corn silages. Heifers fed the processed corn silages grew faster and were more efficient than those fed nonprocessed silage. Steers consuming the two processed silage rations had numerically higher DM, OM, NDF, and ADF digestibilities and significantly higher starch digestibilities than those fed the non- processed silage ration. These data suggest that processing whole-plant corn silage before or after ensiling has …

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Milking Two Or Five Times Daily In The Presence Of A Cow’S Own Nonsuckling Calf Fails To Prolong Postpartum Anovulation, G.C. Lamb, K. E. Thompson, J.S. Heldt, C.A. Löest, Jeffrey S. Stevenson Jan 1998

Milking Two Or Five Times Daily In The Presence Of A Cow’S Own Nonsuckling Calf Fails To Prolong Postpartum Anovulation, G.C. Lamb, K. E. Thompson, J.S. Heldt, C.A. Löest, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Three treatments were initiated at approximately 15 days after calving and continued for 4 weeks: 1) cows were suckled ad libitum by their calves (calf present [CP]); 2) calves were present but nonsuckling 24 hr/day and cows were milked twice daily (CR+2xM); 3) or same as CR+2xM but cows were milked five times daily (CR+5xM). Interval to the first postpartum ovulation was similar between CR+2xM and CR+5xM cows but about 2 weeks less than that in cows suckled ad libitum by their own calves. Cows in the CR+5xM treatment produced more milk than cows in the CR+2xM treatment, whereas only …

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Site Of Semen Deposition And Fertility In Lactating Beef Cows Synchronized With Gnrh And Pgf2Α, G.C. Lamb, K. E. Thompson, K. Anderson, David M. Grieger, Timothy G. Rozell, Jeffrey S. Stevenson Jan 1998

Site Of Semen Deposition And Fertility In Lactating Beef Cows Synchronized With Gnrh And Pgf2Α, G.C. Lamb, K. E. Thompson, K. Anderson, David M. Grieger, Timothy G. Rozell, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine the effect of site of semen deposition on pregnancy rate in beef cows inseminated at a fixed time or after observed estrus. Cows were synchronized with a combination of gonadotropin-releasing hormone (GnRH) prostaglandin-F α (PGF). GnRH was injected 7 days before PGF (day 0; first of breeding season). The trial was conducted at two locations, one in Kansas (147 cows) and one in Colorado (313 cows). At each location, cows were assigned to be inseminated after observed estrus (ESTRUS-AI) or at a fixed time (TIMED-AI). Within these two groups, cows either were inseminated in the …

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Fusobacterium Necrophorum In Ruminal Contents And On The Ruminal Wall Of Cattle, K.R. Bedwell, N. Wallace, Tiruvoor G. Nagaraja Jan 1998

Fusobacterium Necrophorum In Ruminal Contents And On The Ruminal Wall Of Cattle, K.R. Bedwell, N. Wallace, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Fusobacterium necrophorum was quantified from ruminal contents and ruminal wall tissue collected at slaughter. Livers were examined and scored for abscesses. The mean concentration of F. necrophorum on the ruminal wall ranged from 2.9 x 103 to 6.1x 105 per cm2 . The dorsal sac had the lowest counts, and dorsal blind and ventral sacs had the highest counts of F. necrophorum adherent to the ruminal wall. The concentrations of F. necrophorum in ruminal contents and on the ruminal wall did not appear to be related to presence or absence of abscessed livers or to severity of abscesses.

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Comparison Of Fusobacterium Necrophorum Isolates From Liver Abscesses, Ruminal Walls, And Ruminal Contents Of Feedlot Cattle, Sanjeev K. Narayanan, O. Okwumabua, J. Staats, Richard D. Oberst, Tiruvoor G. Nagaraja, M. M. Chengappa Jan 1998

Comparison Of Fusobacterium Necrophorum Isolates From Liver Abscesses, Ruminal Walls, And Ruminal Contents Of Feedlot Cattle, Sanjeev K. Narayanan, O. Okwumabua, J. Staats, Richard D. Oberst, Tiruvoor G. Nagaraja, M. M. Chengappa

Kansas Agricultural Experiment Station Research Reports

DNA finger printing (restriction fragment length polymorphism analysis) was employed to genetically compare Fusobacterium necrophorum isolates of liver abscesses, ruminal wall, and ruminal contents from the same animal. Fusobacterium necrophorum isolates from liver abscesses were genetically identical to the corresponding isolates from the ruminal wall in eight of nine animals tested. This genetic similarity between the isolates supports the hypothesis that F. necrophorum in liver abscesses originates from the ruminal wall.

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Microbial Evaluation Of Steam Pasteurization And Comparison Of Excision Versus Sponge Sampling Recovery, D.L. Retzlaff, S.A. Rueger, Randall K. Phebus, James L. Marsden, Curtis L. Kastner Jan 1998

Microbial Evaluation Of Steam Pasteurization And Comparison Of Excision Versus Sponge Sampling Recovery, D.L. Retzlaff, S.A. Rueger, Randall K. Phebus, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

The use of steam pasteurization (SPS400™; Frigoscandia, Bellevue, WA) as a viable commercial-scale intervention method to treat pre-rigor beef carcasses uniformly hasbeen evaluated for temperatures from 180E to 201 ÌŠF. Effectiveness at lower temperatures(minimum atmospheric temperature of 170 ÌŠF) has not been evaluated. Previous studies of steam pasteurization used excision sampling. However, the USDA-FSIS has suggested use of nondestructive sampling of chilled beef carcasses for generic Escherichia coli, so we compared excision and sponge sampling in a commercial slaughter facility. Twenty-eight beef carcasses were monitored to determine the effectiveness of steam pasteurization and to compare the two sampling methods. Total …

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Prevalence Of Escherichia Coli O157:H7 In Cow-Calf Herds In Kansas, J.M. Sargeant, J.R. Gillespie, D.R. Hyatt, J.C. Galland, L.K. Bohra, Richard D. Oberst, Randall K. Phebus, Michael P. Hays Jan 1998

Prevalence Of Escherichia Coli O157:H7 In Cow-Calf Herds In Kansas, J.M. Sargeant, J.R. Gillespie, D.R. Hyatt, J.C. Galland, L.K. Bohra, Richard D. Oberst, Randall K. Phebus, Michael P. Hays

Kansas Agricultural Experiment Station Research Reports

Fecal samples from cows and calves and samples of water sources were collected monthly for 8 months from 10 Kansas cow-calf farms to determine the prevalence of E. coli O157:H7. The bacterium was found in 8% of fecal samples from cows that were within 24 hours of calving, 1.4% of fecal samples from cows which were not within 24 hours of calving, 1.4% of calf fecal samples, and 1.5% of water samples. E. coli O157:H7 was identified from at least one sample on all farms.

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Feeding Systems And Implant Strategies For Calf-Fed Holstein Steers, C.T. Milton, Robert T. Brandt Jr., Evan C. Titgemeyer Jan 1998

Feeding Systems And Implant Strategies For Calf-Fed Holstein Steers, C.T. Milton, Robert T. Brandt Jr., Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Two hundred sixty-four Holstein steer calves (308 lb) were used in a 2x3 factorially designed experiment to compare the effect of two feeding systems and three implant strategies on performance and carcass characteristics. Steers were allowed ad libitum access to a conventional, high-grain diet for the entire feeding period or were program-fed a high-grain diet to gain 2.2 lb/d for 109 days and 2.6 lb/d for 92 days and then allowed ad libitum access to feed for the remainder of the feeding period. Steers were fed to a common weight endpoint (1260 lb). Implant strategies were: 1) Synovex® -S on …

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Influence Of Melengesterol Acetate (Mga®) And Implus-H® Implants On Rate Of Gain, Feed Efficiency, And Carcass Characteristics Of Culled Beef Cows Fed A High Concentrate Ration, M.F. Spire, J.C. Galland, John A. Unruh, James S. Drouillard Jan 1998

Influence Of Melengesterol Acetate (Mga®) And Implus-H® Implants On Rate Of Gain, Feed Efficiency, And Carcass Characteristics Of Culled Beef Cows Fed A High Concentrate Ration, M.F. Spire, J.C. Galland, John A. Unruh, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

No statistical differences were detected in feedlot performance or carcass traits between control culled beef cows and those that were treated with melengesterol acetate (MGA®) and/or Implus-H® when fed in a feedyard for 56 days before slaughter. All groups performed well, indicating that this practice may be used to improve the market value of culled cows. Cow health during the feeding period is a major concern.

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Effects Of Ruminally Protected Choline And Dietary Fat On Performance Of Finishing Heifers, D.J. Bindel, R.H. Wessels, C.A. Loest, James S. Drouillard, Evan C. Titgemeyer Jan 1998

Effects Of Ruminally Protected Choline And Dietary Fat On Performance Of Finishing Heifers, D.J. Bindel, R.H. Wessels, C.A. Loest, James S. Drouillard, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A 120-day finishing study utilizing 318 heifers (753 lb initial body weight) examined the effects of ruminally protected choline in diets with no tallow or 2 or 4% of supplemental tallow. Heifers were fed a finishing diet based on a mix of steam-flaked and dry- rolled corn; encapsulated choline (20, 40, or 60 g/head/day, supplying 5, 10 or 15 g choline/head/day) was top-dressed to the diet or not added. Dry matter intake decreased linearly with inclusion of fat (P<.05) but was not affected significantly by addition of choline. Daily gains also decreased linearly (P<.05) with fat addition. Choline supplementation increased gain (linear, P<.1; qua dratic, P<.05), with the greatest increase occurring for the first 20 g increment encapsulated choline/day. Likewise, feed efficiency improved (P<.1) with supplemental choline. Again, the greatest response occurred for the first 20 g/day. Kidney, pelvic, and heart fat and yield grade both increased linearly (P<.1) with fat supplementation. The percentage of carcasses grading USDA Choice decreased (linear, P<.05; quadratic, P<.1) when choline was added at 60 g/day. Hot carcass weight, marbling, dressing percent, and 12th rib fat thickness were not affected significantly by either fat or choline. Ruminally protected choline can improve average daily gain and feed efficiency of finishing cattle.

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Effects Of Modified Tall Oil Versus Conjugated Linoleic Acid On Finishing Pig Growth Performance And Carcass Characteristics (1998), P R. O'Quinn, J W. Smith Ii, Michael D. Tokach, J Scott Smith, Jim L. Nelssen, Robert D. Goodband Jan 1998

Effects Of Modified Tall Oil Versus Conjugated Linoleic Acid On Finishing Pig Growth Performance And Carcass Characteristics (1998), P R. O'Quinn, J W. Smith Ii, Michael D. Tokach, J Scott Smith, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted to compare effects of modified tall oil (MTO) and conjugated linoleic acid (CLA) on growth performance, serum chemistry, and carcass composition of finishing barrows. Overall, pigs fed the control diet did not differ from pigs fed MTO or CLA supplemented diets. However, pigs fed MTO had greater ADG and ADFI than pigs fed CLA. No effect of treatment was observed for any of the measured carcass criteria or serum triglyceride levels. The results of this research do not suggest a benefit from feeding MTO or CLA to pigs but do indicate differences in ADG and …

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Effects Of Sorghum Starch Type, Endosperm Hardness, And Processing On Digestibility And Growth Performance In Finishing Pigs And Chicks (1998), H Cao, Robert H. Hines, B W. Senne, J R. Froetschner, J M. Jiang, S L. Johnston, Joe D. Hancock, Keith C. Behnke Jan 1998

Effects Of Sorghum Starch Type, Endosperm Hardness, And Processing On Digestibility And Growth Performance In Finishing Pigs And Chicks (1998), H Cao, Robert H. Hines, B W. Senne, J R. Froetschner, J M. Jiang, S L. Johnston, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

In finishing pigs, waxy sorghum had lower digestibilities for DM and GE than the other genotypes. Also, the hard sorghums were more digestible (P<.06) than the medium hardness sorghum. In broiler chicks, the waxy sorghum was similar to the other genotypes for growth performance and nutrient digestibility. The soft sorghum was superior to the medium and hard genotypes for nutrient retention but not for growth performance. Fine grinding improved F/G and increased retention of nutrients and steam-flaked sorghum supported greater growth performance than extruded sorghum.; Swine Day, Manhattan, KS, November 19, 1998

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Expander Processing And Enzymes For A Wheat-Based Diet For Finishing Pigs (1998), J S. Park, Robert H. Hines, G A. Kennedy, Joel M. Derouchey, D J. Lee, C A. Maloney, H Cao, Joe D. Hancock, Keith C. Behnke Jan 1998

Expander Processing And Enzymes For A Wheat-Based Diet For Finishing Pigs (1998), J S. Park, Robert H. Hines, G A. Kennedy, Joel M. Derouchey, D J. Lee, C A. Maloney, H Cao, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Overall ADG and ADFI were not affected, but feed efficiency was improved with pelleting and further improvements resulted from expander processing. In a second experiment, enzyme supplementation to mash, but not pelleted, diets improved feed efficiency. Indeed, F/G for pigs fed mash with enzyme was similar to that for pigs fed pelleted diets.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Level Of Modified Tall Oil On Finishing Pig Growth Performance And Carcass Characteristics (1998), P R. O'Quinn, J C. Woodworth, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, John A. Unruh Jan 1998

Effects Of Level Of Modified Tall Oil On Finishing Pig Growth Performance And Carcass Characteristics (1998), P R. O'Quinn, J C. Woodworth, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted to evaluate effects of increasing levels of modified tall oil (MTO) on growth performance and carcass composition of finishing barrows. No effect of treatment was observed for ADG, ADFI, or feed efficiency (F/G) during any of the growth periods. However, pigs fed increasing MTO had less backfat, larger longissimus muscle area, and increased percentage muscle than control pigs not fed MTO. Additionally, carcasses from pigs fed MTO had decreased drip loss. The results of this trial indicate that although MTO has no impact on growth performance in barrows, it can improve carcass leanness. The optimal …

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Effects Of Increasing L-Lysine Hcl On Finishing Pig Growth Performance And Carcass Characteristics (1998), M De La Llata, J A. Loughmiller, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1998

Effects Of Increasing L-Lysine Hcl On Finishing Pig Growth Performance And Carcass Characteristics (1998), M De La Llata, J A. Loughmiller, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

We conducted two studies to determine the effects of increasing L-lysine HCI in finishing pig diets. Experiment 1 used sorghum-soybean meal-based diets, and Exp. 2 used corn-soybean meal-based diets. Treatments included a control diet (no L-lysine HCl) or .15, .225, and .30% L-lysine HCI replacing the lysine provided by soybean meal. In Exp. 1, increasing L-lysine HCI from 0 to .150/0 had no effect on ADG, F/G, and percentage lean; however, pigs fed .225 and .30% L-Iysine HCI had poorer ADG, F/G, and percentage lean. In Exp. 2, ADG and FfG were poorer for pigs fed .225 or .30% L-lysine …

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Influence Of Added Zinc From Zinc Oxide Or A Zinc Amino Acid Complex On Starter Pig Growth Performance (1998), J C. Woodworth, P R. O'Quinn, S A. Moser, R E. Musser, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1998

Influence Of Added Zinc From Zinc Oxide Or A Zinc Amino Acid Complex On Starter Pig Growth Performance (1998), J C. Woodworth, P R. O'Quinn, S A. Moser, R E. Musser, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 360 pigs (initially 11.5 lb and 16 d of age) was fed a negative control diet containing no added Zn; one of six diets containing 165 ppm Zn from zinc oxide from the trace mineral premix and added AvailaZn (0, 100,200, 300,400, or 500 ppm of Zn); or a positive control diet containing 3,165 ppm added Zn from zinc oxide. Pigs fed the positive control diet had higher (P<.02)ADG and ADFI compared to pigs in all other treatments for the duration of the trial. Pigs fed diets containing Availazn had numerically higher ADG and ADFI than pigs fed diets containing no added Zn for the entire trial. These results are similar to previous research showing maximum growth performance exhibited by pigs fed high levels (3,000 ppm) of Zn from zinc oxide.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Different Fat Sources On Growth Performance Of Early-Weaned Pigs (1998), M De La Llata, G S. Grinstead, J C. Woodworth, J S. Herbert, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 1998

Effects Of Different Fat Sources On Growth Performance Of Early-Weaned Pigs (1998), M De La Llata, G S. Grinstead, J C. Woodworth, J S. Herbert, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

One hundred and eighty weanling pigs (initially 14.6 lb and 21 ± 2 d of age) were used in a 35 d growth trial to evaluate different dietary fat sources. Treatments consisted of a control diet (no added fat) or diets with 5% added fish oil, soybean oil, choice white grease, or a combination of 2.5% fish oil and 2.5% choice white grease. The diets were fed in two phases (d 0 to 14 and d 14 to 35 after weaning). Diets were fed in a meal form and formulated to a similar lysine:calorie ratio. From d 0 to 14 …

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Influence Of Spirulina Platensis On Growth Performance Of Weanling Pigs (1998), G S. Grinstead, J Sawyer, K Maxwell, R Stott, A Moser, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1998

Influence Of Spirulina Platensis On Growth Performance Of Weanling Pigs (1998), G S. Grinstead, J Sawyer, K Maxwell, R Stott, A Moser, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

We conducted three experiments to evaluate the influence of an algal feed additive, Spirulina platensis, on weanling pig performance. Two experiments conducted under commercial production conditions indicated a response to Spirulina platensis in meal-based diets but not pelleted diets. Another experiment concluded that Spirulina platensis tended to improve F/G early in the trial but not for cumulative performance. Results of these three experiments suggest that Spirulina platensis added at low inclusions to the diet may enhance performance. However, the results lacked consistency across experiments and warrant further investigation.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Increased Dietary Lysine On Sow And Litter Performance (1998), R E. Musser, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach, Steven S. Dritz Jan 1998

Effects Of Increased Dietary Lysine On Sow And Litter Performance (1998), R E. Musser, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three hundred arid fifty three lactating sows were used to determine the effects of increased dietary lysine on sow and litter performance. At farrowing, sows were assigned to com-soybean meal lactation diets consisting of either 1.0 or 1.3% total lysine. A treatment by parity interaction was observed, with first parity sows fed 1.3% lysine having heavier litter weaning weights than sows fed 1.00/0 lysine. Surprisingly, third and fourth parity sows fed 1.3% lysine had lower litter weaning weights than those fed 1.0% lysine. No other treatment by parity interactions existed. No differences were observed in the number of pigs weaned …

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Influence Of Soybean Meal Variety And Processing Temperature On The Growth Performance Of Pigs From 25 To 45 Lb (1998), J A. Loughmiller, T T. Lohrmann, La Llata M. De, P R. O'Quinn, J C. Woodworth, S A. Moser, G S. Grinstead, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1998

Influence Of Soybean Meal Variety And Processing Temperature On The Growth Performance Of Pigs From 25 To 45 Lb (1998), J A. Loughmiller, T T. Lohrmann, La Llata M. De, P R. O'Quinn, J C. Woodworth, S A. Moser, G S. Grinstead, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Three hundred ninety high-lean growth pigs were used in a 17 d growth assay from 25 to 45 lb. Treatments consisted of soybean meal (SBM) from either high-oleic or check-line soybean varieties processed under pilot-plant processing conditions at four temperature ranges (80-85, 85-90, 90-95, 100-105 °C). Positive and negative controls were made using commercially obtained SBM (46.50%CP). Total dietary lysine was maintained at .95% except for the positive control (1.30%). Pigs fed commercial SBM with 1.30% dietary lysine had increased ADG and better F/G than pigs fed any other treatment. A SBM variety x processing temperature interaction was observed for …

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Effects Of Expander Conditioning Of Corn- And Sorghum-Based Diets On Pellet Quality And Performance In Finishing Pigs And Lactating Sows (1998), S L. Johnston, Robert H. Hines, G A. Kennedy, C A. Maloney, S L. Traylor, S P. Sorrell, Joe D. Hancock, Keith C. Behnke Jan 1998

Effects Of Expander Conditioning Of Corn- And Sorghum-Based Diets On Pellet Quality And Performance In Finishing Pigs And Lactating Sows (1998), S L. Johnston, Robert H. Hines, G A. Kennedy, C A. Maloney, S L. Traylor, S P. Sorrell, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Pellet durability index was similar for sorghum- vs com-based diets but was greater for expander-conditioned pellets than standard-conditioned pellets. For finishing pigs, ADG, F/G, and carcass measurenlents were similar for pigs fed sorghum vs com. Efficiency of gain was 6% better for pigs fed pelleted diets compared to those given meal diets but was sinlilar for pigs fed the conventional- and expander-conditioned diets. For sows, the com- and sorghumbased diets supported similar litter performance. Our data indicate that sorghum is an excellent feedstuff: comparable to corn, in diets for finishing pigs and sows.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Diet Complexity And Processing Method On Growth Performance And Nutrient Digestibility In Nursery Pigs (1998), S L. Traylor, Robert H. Hines, S L. Johnston, P Sorrell, Keith C. Behnke, Joe D. Hancock, Joel M. Derouchey Jan 1998

Effects Of Diet Complexity And Processing Method On Growth Performance And Nutrient Digestibility In Nursery Pigs (1998), S L. Traylor, Robert H. Hines, S L. Johnston, P Sorrell, Keith C. Behnke, Joe D. Hancock, Joel M. Derouchey

Kansas Agricultural Experiment Station Research Reports

A complex diet formulation resulted in greater digestibility of nutrients and a trend for greater ADG for d 0 to 14 of the experiment. However, for d 14 to 28 and overall (d o to 28), diet complexity did not affect growth performance. In contrast, pelleting improved essentially every response criterion especially in simple diets. Expander conditioning before pelleting increased overall digestibility of nutrients and of F/G compared to standard conditioning, but again, the response was most pronounced with the simple diet formulations.; Swine Day, Manhattan, KS, November 19, 1998

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Effect Of Date Of Harvest On The Nutritional Quality Of Native Grass Hay, J.C. Baker, S.R. Tonn, David E. Kehler, Dale A. Blasi Jan 1998

Effect Of Date Of Harvest On The Nutritional Quality Of Native Grass Hay, J.C. Baker, S.R. Tonn, David E. Kehler, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Native grass hay meadows in three Kansas Flint Hills counties were sampled at 2-week intervals during the growing season to determine the effect of harvest date on forage quality. Each sample was analyzed for crude protein (CP), acid detergent fiber (ADF), and phosphorus (PHOS). CP and PHOS contents declined, and ADF increased as harvest date progressed into the growing season. Both CP and ADF were related highly to harvest date. PHOS content was associated only moderately with harvest date. Harvest date of native grass hay can significantly influence supplemental protein needs for beef cows.

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Roundup 1998 Jan 1998

Roundup 1998

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins for producers in the …

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Effects Of Sorghum Endosperm Hardness And Processing On Growth Performance And Nutrient Digestibility In Pigs And Broiler Chicks (1998), H Cao, Robert H. Hines, J S. Park, B W. Senne, J M. Jiang, J R. Froetschner, P Sorrell, Joe D. Hancock, Keith C. Behnke Jan 1998

Effects Of Sorghum Endosperm Hardness And Processing On Growth Performance And Nutrient Digestibility In Pigs And Broiler Chicks (1998), H Cao, Robert H. Hines, J S. Park, B W. Senne, J M. Jiang, J R. Froetschner, P Sorrell, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

In nursery pigs, the greatest digestibilities of DM, N, and OE were observed with soft sorghum. In finishing pigs, no difference was observed in digestibility of nutrients among the sorghum genotypes. Chicks fed soft sorghum had better F/G than chicks fed medium and hard sorghum. Finally, thermal processing (steam flaking and extrusion) improved ADG and F/G and digestibilities of DM, N, and GE compared to grinding (coarse and fine).; Swine Day, Manhattan, KS, November 19, 1998

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Enzyme Additions To Sorghum-Based Diets For Finishing Pigs (1998), J S. Park, Robert H. Hines, C A. Maloney, H Cao, D J. Lee, Joe D. Hancock, Joel M. Derouchey Jan 1998

Enzyme Additions To Sorghum-Based Diets For Finishing Pigs (1998), J S. Park, Robert H. Hines, C A. Maloney, H Cao, D J. Lee, Joe D. Hancock, Joel M. Derouchey

Kansas Agricultural Experiment Station Research Reports

Three experiments were conducted to determine the effects of a sorghum-specific enzyme supplementation on growth performance of finishing pigs. Although positive trends occurred, the sorghum-specific enzymes used in our experiments did not yield large and(or) consistent improvements in growth performance or nutrient digestibility in finishing pigs.; Swine Day, Manhattan, KS, November 19, 1998

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Added Dietary Fat Improves Growth Performance And Feed Efficiency In Growing-Finishing Pigs Under Commercial Conditions (1998), S S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1998

Added Dietary Fat Improves Growth Performance And Feed Efficiency In Growing-Finishing Pigs Under Commercial Conditions (1998), S S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of480 pigs was used in an experiment conducted in a commercial research facility to determine the influence of fat additions to the growing-finishing diet on pig performance and carcass composition. Adding fat to the diet from 80 to 265 lb increased ADG and FIG by 1 and 2%, respectively, for each 1%added fat. The growth response was greatest during the initial phase of the trial (80 to 130 lb) and declined as the trial progressed. The feed efficiency response was consistent throughout the trial. After adjusting for the greater carcass weight of pigs consuming the high fat diets, …

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