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Animal Sciences

Kansas Agricultural Experiment Station Research Reports

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2000

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Articles 1 - 30 of 100

Full-Text Articles in Life Sciences

Effects Of A Quillaja Saponaria Extract On Weanling Pig Growth Performance And Immune Function During An Acute Enteric Disease Challenge (2000), J L. Turner, J R. Werner, C M. Hill, K Skjolaas, S Hogge, K Herkleman, J Ernest Minton, Steven S. Dritz Jan 2000

Effects Of A Quillaja Saponaria Extract On Weanling Pig Growth Performance And Immune Function During An Acute Enteric Disease Challenge (2000), J L. Turner, J R. Werner, C M. Hill, K Skjolaas, S Hogge, K Herkleman, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 96 pigs (initially 19 lb and 17 d of age) was used in a 28 d growth trial to determine the effects of Quillaja saponaria (QS) extract on weanling pig growth performance and immune function in response to enteric disease challenge with Salmonella typhimurium (ST). Experimental treatments were arranged in a 2 × 4 factorial with main effects of disease challenge (control vs. ST challenge) and dietary addition of QS (0, 4, 8, or 16 oz/ton). The results suggest little beneficial effect of QS on growth performance or immune response in the presence or absence of ST …

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Effects Of Ph And Location Within A Loin On Pork Quality (2000), B S. Andrews, John A. Unruh, Melvin C. Hunt, Curtis L. Kastner Jan 2000

Effects Of Ph And Location Within A Loin On Pork Quality (2000), B S. Andrews, John A. Unruh, Melvin C. Hunt, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Eighty-one boneless pork loins were used to determine the influence of pH on quality characteristics. With increasing loin pH, instrumental values for L* (lightness) and b* (yellowness) of loins and chops decreased, and cooking losses of chops before 0 d and after 1 d of retail display also decreased. The pH had no effects on package losses or Warner-Bratzler shear force values of chops. Center loin chops (0 d and 1 d) had higher ratios of reflectance than blade and sirloin chops. Sirloin chops had higher ratio of reflectance than blade chops. Center loin chops had lower package losses than …

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Effects Of Increasing Levels Of Spray-Dried Blood Meal And Blood Cells On Nursery Pig Performance (2000), B J. James, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2000

Effects Of Increasing Levels Of Spray-Dried Blood Meal And Blood Cells On Nursery Pig Performance (2000), B J. James, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three hundred fifty weanling pigs (initially 14.6 lbs and 17 ± 2 d of age) were used in a 19-d growth assay to determine the effects of increasing levels (2.5, 5.0, and 7.5%) of spray-dried blood meal or blood cells in the diet on growth performance. Overall, the dietary inclusion of both blood products improved ADG and feed efficiency. However, spray-dried blood meal improved ADG, ADFI, and F/G from d 0 to 7 more compared to blood cells. The greatest differences during this period occurred at the 5 and 7.5% inclusion levels. No differences in growth performance were detected from …

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Effects Of Gamma Ray And Electron Beam Irradiation Levels In Spray-Dried Blood Meal On Nursery Pig Performance (2000), J C. Woodworth, M J. Webster, B J. James, D E. Real, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2000

Effects Of Gamma Ray And Electron Beam Irradiation Levels In Spray-Dried Blood Meal On Nursery Pig Performance (2000), J C. Woodworth, M J. Webster, B J. James, D E. Real, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three hundred weanling pigs (initially 23.7 lbs and 17 ± 6 d of age) were used in a 19-d growth assay to determine the effects of increasing levels (2.5, 5.0, and 10.0, and 20.0 kGy) of gamma ray and electron beam irradiation of spray-dried blood meal on growth performance. Irradiation of blood meal resulted in decreased concentrations of aerobic bacteria, E. coli, mold, and yeast in spray-dried blood meal. The inclusion of irradiated spray-dried blood meal tended to improve F/G from d 0 to 7 and for the overall trial (d 0 to 14), but had no effects on ADG …

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Effects Of Irradiation Of Spray-Dried Blood Meal And Animal Plasma On Nursery Pig Growth Performance (2000), B W. James, M J. Webster, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2000

Effects Of Irradiation Of Spray-Dried Blood Meal And Animal Plasma On Nursery Pig Growth Performance (2000), B W. James, M J. Webster, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine the effects of irradiation of spray-dried blood meal and animal plasma on nursery pig growth performance. In Exp. 1, irradiation of spray-dried blood meal resulted in improved ADG and F/G and tended to increase ADFI for the 14 d experiment. The majority of the increase in growth performance occurred during the first week of the trial. In Exp. 2, ADG and ADFI were increased from d 0 to 10 for pigs fed irradiated spray-dried animal plasma compared to pigs fed regular spray-dried animal plasma. In addition, we observed differences in growth performance between different …

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Effects Of Dietary L-Carnitine On Growth Performance Of Nursery Pigs (2000), D E. Real, M J. Rincker, M E. Steidinger, S D. Carter, K Q. Owen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2000

Effects Of Dietary L-Carnitine On Growth Performance Of Nursery Pigs (2000), D E. Real, M J. Rincker, M E. Steidinger, S D. Carter, K Q. Owen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Four experiments were conducted to evaluate the effects of added dietary Lcarnitine on growth performance of nursery pigs. Pigs were fed a control diet containing no added L-carnitine or the control diet with 25, 50, 75, or 100 ppm of added L-carnitine (25, 50, or 100 ppm in Exp. 4). In Exps. 1, 2, and 3 for the overall study, ADG and F/G improved with increasing dietary L-carnitine. In Exp. 4, pigs fed increasing L-carnitine had improved ADG from d 0 to 3 and d 10 to 24. Increasing added carnitine improved F/G from d 10 to 24 and for …

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The Optimum Isoleucine:Lysine Ratio In Starter Diets To Maximize Growth Performance Of The Early-Weaned Pig (2000), B W. James, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey Jan 2000

The Optimum Isoleucine:Lysine Ratio In Starter Diets To Maximize Growth Performance Of The Early-Weaned Pig (2000), B W. James, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (initially 12.3 lb BW and approximately 18 d of age) was used in a 14-d growth assay to determine the optimal isoleucine:lysine ratio to maximize growth performance. The 12 experimental treatments consisted of either 1.00 or 1.26% apparent digestible lysine with isoleucine concentrations of 45, 50, 55, 60, or 65% of lysine. Two positive control diets were used with 1.10 and 1.39% apparent digestible lysine and 45% isoleucine:lysine to ensure that lysine was not the first limiting amino acid in the basal diets. The results of this experiment indicate that the optimal apparent digestible …

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Effects Of Grazing System On Performance Ofcow-Calf Pairs Grazing Bermudagrass Pasturesinterseeded With Wheat And Legumes (2000), Lyle W. Lomas, Joseph L. Moyer, K.P. Coffey, George A. Milliken Jan 2000

Effects Of Grazing System On Performance Ofcow-Calf Pairs Grazing Bermudagrass Pasturesinterseeded With Wheat And Legumes (2000), Lyle W. Lomas, Joseph L. Moyer, K.P. Coffey, George A. Milliken

Kansas Agricultural Experiment Station Research Reports

A total of 96 fall-calving cows and 64 calves grazed bermudagrass interseeded with wheat and legumes during 1996, 1997, and 1998 in either a continuous or rotational system stocked at equal rates. Legume cover, available forage dry matter, residual hay production, gains of cows and calves grazing wheat interseeded into bermudagrass, and gains of cows grazing bermudagrass interseeded with legumes were measured. Grazing system had no effect on legume cover, available forage dry matter, gains of cows and calves (wheat phase), and gains of cows (legume phase); however, rotationally grazed pastures produced more residual hay than those grazed continuously.

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Effects Of Stage Of Maturity At Harvest And Kernel Processing On The Nutrient Digestibility Of Corn Silage (2000), T.J. Wistuba, L.A. Whitlock, M.K. Siefers, K.K. Bolsen, Ronald V. Pope Jan 2000

Effects Of Stage Of Maturity At Harvest And Kernel Processing On The Nutrient Digestibility Of Corn Silage (2000), T.J. Wistuba, L.A. Whitlock, M.K. Siefers, K.K. Bolsen, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Twelve ruminally cannulated crossbred steers were used to evaluate the effects of stage of maturity and kernel processing (rolling) of whole-plant corn silage on nutrient digestibilities. The six silage rations were: 50% milkline, 80% milkline, and 7 days after-black layer (7BL) each ensiled processed (rolled) or unprocessed. Steers consuming the 80% milkline and 7BL processed rations had numerically higher DM and OM digestibilities, and all processed rations had numerically higher starch digestibilities. However, the three processed rations had numerically lower fiber digestibilities (NDF and/or ADF). Steers consuming the 80% milkline rations had numerically higher nutrient digestibilities than those fed the …

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Limiting Amino Acids For Holstein Steers Fed Soybean Hull-Based Diets (2000), R.H. Greenwood, Evan C. Titgemeyer Jan 2000

Limiting Amino Acids For Holstein Steers Fed Soybean Hull-Based Diets (2000), R.H. Greenwood, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A study was conducted to determine the limiting amino acids for cattle fed soybean hullbased diets. Ruminally cannulated Holstein steers (335 lb) were maintained in metabolism crates, fed the same basal diet (73% soyhulls, 19% alfalfa), and given the same intraruminal infusions (400 g/day acetate to increase energy supply without increasing microbial protein supply). Steers were infused into the abomasum with a complete mixture of the 10 essential amino acids or the mixture with histidine; tryptophan; arginine; phenylalanine; or the three branched-chain amino acids (leucine, isoleucine, and valine) removed. Nitrogen retention was reduced by removal of either histidine or the …

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Effects Of Late-Summer Protein Supplementation On Stocker Cattle Performance, Feedlot Gain, And Carcass Traits (2000), T.T. Marston, D.O. Yauk, L.E. Wankel, J.F. Gleghorn Jan 2000

Effects Of Late-Summer Protein Supplementation On Stocker Cattle Performance, Feedlot Gain, And Carcass Traits (2000), T.T. Marston, D.O. Yauk, L.E. Wankel, J.F. Gleghorn

Kansas Agricultural Experiment Station Research Reports

A 2-year trial was conducted to study the effects of feeding an Arsoy™-based, 32% crude protein supplement to stocker cattle grazing late-summer native pastures. During about 90 days of late-summer/fall grazing, the steers efficiently converted the Arsoy supplement (5.3:1, as fed basis) into significantly greater weight gains (55 lb) relative to nonsupplemented contemporaries. Both groups of steers then were finished and slaughtered in commercial facilities to determine if the supplementation program had any carryover effects. Late-summer supplementation did not influence steers' feedlot gain or carcass traits including ribeye area, fat thickness, and quality grade. However, average hot carcass weight and …

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Escherichia Coli O157:H7 Risk Assessment For Blade-Tenderized Beef Steaks (2000), H. Thippareddi, S. Sporing, Randall K. Phebus, James L. Marsden, Curtis L. Kastner Jan 2000

Escherichia Coli O157:H7 Risk Assessment For Blade-Tenderized Beef Steaks (2000), H. Thippareddi, S. Sporing, Randall K. Phebus, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

The potential translocation of E. coli O157:H7 from the surface to the interior of whole muscle by blade tenderization was evaluated. Beef top sirloin subprimals were inoculated with 106 or 103 cfu/cm2 and passed once through a Ross blade tenderization unit. Core samples showed a translocation of 3 to 4% of surface inoculum to the geometric center of the subprimal. A second study evaluated thermal destruction of E. coli O157:H7 in blade tenderized (BT) steaks compared to nontenderized (NT) steaks of three thicknesses when ovenbroiled. Subprimal surfaces were inoculated to a level of 107 cfu/cm2 and blade tenderized. Steaks cut …

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A Survey On The Use Of Blade Tenderizers By Beef Fabrication Plants (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner Jan 2000

A Survey On The Use Of Blade Tenderizers By Beef Fabrication Plants (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

A questionnaire to determine the use of blade tenderizers in beef fabrication facilities was sent to 241 members of the North American Meat Processors Association (NAMP). Eighty-four percent of the 90 respondents used blade tenderizers. These subprimals were at least sometimes tenderized by the following percentages of respondents: tenderloins, 7.9; chuck cuts, 18; round cuts, 36; ribeyes, 38; strip loins, 56; and top sirloin butts, 62. If a processor blade-tenderized a particular cut, they tenderized a majority of their production for that cut, generally with multiple passes through the tenderizer. For example, the 62% of respondents who tenderized top sirloin …

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Effects Of Quality Grade, Aging Period, Blade Tenderization, And Degree Of Doneness On Tenderness Of Strip Loin (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner Jan 2000

Effects Of Quality Grade, Aging Period, Blade Tenderization, And Degree Of Doneness On Tenderness Of Strip Loin (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

We used 162 strip loins to determine the influence of different quality grades, aging periods, blade tenderization passes, and degree of doneness on thawing and cooking loss and Warner-Bratzler shear force (WBS, tenderness). Select (SEL), Choice (CHO), and Certified Angus Beef™ (CAB) strip loins were aged for 7, 14, or 21 days and not tenderized (0X) or blade tenderized one (1X) or two (2X) times. Steaks from each strip loin were assigned randomly to final endpoint cooking temperatures of 150, 160, and 170°F. For steaks aged 7 days, all quality grade and blade tenderization treatments had similar (P>.05) WBS. …

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Effects Of Quality Grade, Aging Period, Blade Tenderization, And Degree Of Doneness On Tenderness Of Top Sirloin Butt Steaks (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner Jan 2000

Effects Of Quality Grade, Aging Period, Blade Tenderization, And Degree Of Doneness On Tenderness Of Top Sirloin Butt Steaks (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

We used 162 top sirloin butts to determine the influence of different quality grades, postmortem aging periods, blade tenderization passes, and degree of doneness on thawing and cooking losses and Warner-Bratzler shear force (WBS, tenderness). Select (SEL), Choice (CHO), and Certified Angus Beef™ (CAB) top sirloin butts (n=54 for each) were aged for 7, 14, or 21 days and not tenderized (OX) or blade tenderized one (1X) or two (2X) times. Steaks from each top sirloin butt were assigned randomly to final endpoint cooking temperatures of 150, 160, and 170°F. Each longer aging period resulted in lower (P<.05, more tender) WBS. In addition, steaks blade tenderized 2X had lower (P<.05) WBS than steaks not tenderized or blade tenderized 1X. Within each quality grade, WBS increased (P<.05) as endpoint cooking temperature increased. When cooked to 160 or 170°F, CHO and CAB steaks had lower (P<.05) WBS than SEL steaks. Increased aging periods and blade tenderization passes of top sirloin butt steaks improved tenderness. When cooking to higher endpoint temperatures, using higher quality grades will minimize toughness caused by cooking.

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Anestrus In Lactating Dairy Cows Before Ovulation Synchronization (2000), J.A. Cartmill, S.E. Zarkouny, Hensley, Jeffrey S. Stevenson Jan 2000

Anestrus In Lactating Dairy Cows Before Ovulation Synchronization (2000), J.A. Cartmill, S.E. Zarkouny, Hensley, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The incidence of anestrus in dairy cattle prior to first inseminations carried out after a minimum of 60 days postpartum ranged from 4 to 58% in first-lactation cows and 14 to 50% in older cows. Dairy cows with more days in milk, older than 2 years, and in better body condition (probably reflective of greater postpartum dry matter intakes) were more likely to cycle than thinner cows. Cows that were not cycling before the first week of insemination conceived at lower rates and took longer to become pregnant.; Dairy Day, 2000, Kansas State University, Manhattan, KS, 2000;

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Embryo Survival In Lactating Dairy Cows (2000), J.A. Carmill, S.E. Zarkouny, B.A. Hensley, Jeffrey S. Stevenson Jan 2000

Embryo Survival In Lactating Dairy Cows (2000), J.A. Carmill, S.E. Zarkouny, B.A. Hensley, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Rates of embryo survival in lactating dairy cows were assessed in three separate studies. Based on pregnancy diagnoses 27 to 29 days after timed inseminations, survival to days 40 to 50 or day 57, depending on the study, varied from 9 to 88% in cows that were not cycling before insemination compared to 57 to 90% in cows that were cycling. Previously anestrous cows had lower rates of survival. In one study, supplementing cows with progesterone before insemination improved embryo survival.; Dairy Day, 2000, Kansas State University, Manhattan, KS, 2000;

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Effects Of Freezing Pork Chops On Warner-Bratzler Shear Force And Cookery Traits (2000), B S. Andrews, John A. Unruh, Melvin C. Hunt, Curtis L. Kastner Jan 2000

Effects Of Freezing Pork Chops On Warner-Bratzler Shear Force And Cookery Traits (2000), B S. Andrews, John A. Unruh, Melvin C. Hunt, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Eighty-one boneless pork loins were used to determine the influence of freezing and pH on Warner-Bratzler shear force (WBS) values and cookery traits. Chops with lower pH (6.2). Similar to cooking losses, total moisture losses decreased with increased pH. Frozen chops had lower WBS values (more tender) than fresh chops. However, fresh chops had a higher total yield (lower moisture loss) than frozen chops.; Swine Day, Manhattan, KS, November 16, 2000

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Air Quality In Swine-Finishing Barns (2000), B Z. Predicala, Ronaldo G. Maghirang, S B. Jerez, J E. Urban, Robert D. Goodband Jan 2000

Air Quality In Swine-Finishing Barns (2000), B Z. Predicala, Ronaldo G. Maghirang, S B. Jerez, J E. Urban, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Air quality was assessed in two commercial swine-finishing barns: one naturally ventilated (NV) and one mechanically ventilated (MV). The concentrations of inhalable dust (IDC), respirable dust (RDC), airborne viable particles, carbon dioxide (CO2), and ammonia (NH3), as well as the air temperature and relative humidity (RH) inside the barns were monitored for 41 weeks. The two barns did not differ significantly (P>0.05) in IDC, RDC, and bioaerosol concentration. Overall mean levels for IDC, RDC, CO2, and NH3 were below the threshold limit values specified by the American Conference of Governmental Industrial Hygienists (ACGIH). However, some measurements exceeded the exposure …

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Effects Of Creatine Monohydrate On Finishing Pig Growth Performance, Carcass Characteristics, And Meat Quality (2000), B W. James, P R. O'Quinn, B S. Andrews, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen Jan 2000

Effects Of Creatine Monohydrate On Finishing Pig Growth Performance, Carcass Characteristics, And Meat Quality (2000), B W. James, P R. O'Quinn, B S. Andrews, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Growth performance, carcass characteristics, and meat quality were evaluated from 320 pigs fed either a control diet or diets containing added creatine monohydrate (CMH). Dietary treatments, initiated 30-d prior to slaughter (192 lb BW), consisted of: 1) a control diet; 2) control diet with 3 g CMH/pig/d for 30 d (maintenance); 3) 25 g CMH/pig/d for 5 d followed by 3 g CMH/pig/d for the next 25 d (early load); 4) or 25 g CMH/pig/d 5 d before slaughter (late load). The results from this experiment suggest that added CMH does not affect finishing pig growth performance but may increase …

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Influence Of Dietary Niacin On Finishing Pig Performance And Meat Quality (2000), D E. Real, J C. Woodworth, M J. Webster, B W. James, E Alonso, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, John A. Unruh, Joel M. Derouchey, Steven S. Dritz Jan 2000

Influence Of Dietary Niacin On Finishing Pig Performance And Meat Quality (2000), D E. Real, J C. Woodworth, M J. Webster, B W. James, E Alonso, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, John A. Unruh, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

One hundred forty-four finishing pigs were used to determine the influence of added dietary niacin on their growth performance and meat quality. Gilts grew slower, ate less, and were more efficient than barrows for the entire growth performance period. Increasing dietary niacin levels to 25 g/ton increased ADG in gilts for the first 25 days, but decreased ADG for barrows. No other interactions occurred. From d 25 to 62, ADFI tended to increase for pigs fed up to 100 g/ton niacin, whereas pigs fed 500 g/ton niacin ate less. Dietary niacin level did not significantly affect carcass yield or quality …

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Effects Of Increasing L-Lysine Hcl In Corn-Soybean Meal Diets On Growth Performance And Carcass Characteristics Of Growing-Finishing Gilts (2000), M De La Llata, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2000

Effects Of Increasing L-Lysine Hcl In Corn-Soybean Meal Diets On Growth Performance And Carcass Characteristics Of Growing-Finishing Gilts (2000), M De La Llata, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An experiment using 1,200 gilts (65 to 260 lb) was conducted to determine the effects of increasing L-lysine HCl in cornsoybean meal diets on growth performance and carcass characteristics. The dietary treatments consisted of a control diet with no added L-lysine HCl and six increasing levels of L-lysine HCl (1, 2, 3, 4, 5, and 6 lb/ton) replacing the lysine provided by soybean meal. A negative control treatment was used to ensure that dietary lysine was not above required levels. Increasing L-lysine HCl above 3 lb/ton decreased ADG and increased F/G. Backfat was increased and FFLI decreased with increasing L-lysine …

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Effects Of Free Fatty Acid Concentrations In Choice White Grease On Growth Performance And Nutrient Digestibility In Weanling Pigs (2000), Robert H. Hines, H Cao, C A. Maloney, D W. Dean, D J. Lee, J S. Park, Joel M. Derouchey, Joe D. Hancock Jan 2000

Effects Of Free Fatty Acid Concentrations In Choice White Grease On Growth Performance And Nutrient Digestibility In Weanling Pigs (2000), Robert H. Hines, H Cao, C A. Maloney, D W. Dean, D J. Lee, J S. Park, Joel M. Derouchey, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

As much as 53% free fatty acids in choice white grease did not adversely affect piglet performance. Thus, concentration of free fatty acids, if they are not otherwise damaged or rancid, is not an acceptable measure of fat quality.; Swine Day, Manhattan, KS, November 16, 2000

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Optimal Parity Distribution – When Is The Best Time To Cull Sows? (2000), Kevin C. Dhuyvetter Jan 2000

Optimal Parity Distribution – When Is The Best Time To Cull Sows? (2000), Kevin C. Dhuyvetter

Kansas Agricultural Experiment Station Research Reports

The economic impact of alternative sowculling strategies was examined by simulating costs and returns for a farrowing-to-weaning swine operation. Culling strategies considered were to sell sows after parity 1 (P1) through parity 10 (P10). These 10 culling strategies resulted in different parity distributions. The optimal parity distribution is a complex issue, because it is related to conception rates, litter size, feed intake, as well as other factors. Results of this analysis indicate that the most economical time to cull a sow is after her eighth or ninth parity. This results in a breeding herd comprised of 18 to 20% gilts …

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Effects Of Expanding And Pelleting Diets On Finishing Pigs Fed From Wet/Dry Feeders (2000), N Amornthewaphat, Joe D. Hancock, Keith C. Behnke, Leland J. Mckinney, C W. Starkey, D J. Lee, C L. Jones, J S. Park, D W. Dean Jan 2000

Effects Of Expanding And Pelleting Diets On Finishing Pigs Fed From Wet/Dry Feeders (2000), N Amornthewaphat, Joe D. Hancock, Keith C. Behnke, Leland J. Mckinney, C W. Starkey, D J. Lee, C L. Jones, J S. Park, D W. Dean

Kansas Agricultural Experiment Station Research Reports

Pigs fed pelleted and expanded diets from wet/dry feeders had 4.4% greater ADG and 7.9 % greater efficiency of gain than pigs fed a mash diet. Also, trends for greater efficiencies of gain occurred among pigs fed expanded pellets vs standard pellets and expandate vs expanded pellets.; Swine Day, Manhattan, KS, November 16, 2000

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Comparisons Of Lysine Bioavailability In Spray-Dried Blood Meal, Blood Cells, And Crystalline Lysine In Nursery Pigs (2000), J C. Woodworth, B W. James, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2000

Comparisons Of Lysine Bioavailability In Spray-Dried Blood Meal, Blood Cells, And Crystalline Lysine In Nursery Pigs (2000), J C. Woodworth, B W. James, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three hundred thirty-three nursery pigs (initially 23.7 lb) were used in a 21-d growth assay to determine the lysine bioavailability of spray-dried blood meal, blood cells, and crystalline lysine on growth performance. Regardless of lysine source, ADG improved linearly as dietary lysine increased. However, pigs fed diets containing blood cells gained faster then those fed diets with spraydried blood meal. Pigs fed diets containing crystalline lysine and blood cells had greater ADFI then pigs fed spray-dried blood meal. Feed efficiency improved by 11.6, 13.6, and 12.7% with increasing amounts of L-lysine HCl, spray-dried blood meal, and blood cells, respectively. If …

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Effects Of Irradiation Processing Of Specialty Protein Products On Nursery Pig Performance (2000), J C. Woodworth, M J. Webster, B W. James, D E. Real, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2000

Effects Of Irradiation Processing Of Specialty Protein Products On Nursery Pig Performance (2000), J C. Woodworth, M J. Webster, B W. James, D E. Real, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three hundred weanling pigs (initially 13.4 lb and 20 ± 2 d of age) were used in a 14-d growth assay to determine the effects of irradiation processing of specialty protein products on nursery pig performance. Overall, irradiated of AP 920 and Peptide-Plusâ„¢ resulted in increased ADG compared to nonirradiated products. Irradiation of Peptide-Plus® improved feed efficiency compared to its nonirradiated form. Also, ADG was greater for pigs fed diets containing ProtiOneâ„¢ and DPS 30 and tended to increase with AP 920 compared to those fed the control diet. In addition, feed efficiency was improved for pigs fed diets containing …

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The Ph Of Spray-Dried Blood Meal Does Not Influence Nursery Pig Performance (2000), J C. Woodworth, B W. James, M J. Webster, D E. Real, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2000

The Ph Of Spray-Dried Blood Meal Does Not Influence Nursery Pig Performance (2000), J C. Woodworth, B W. James, M J. Webster, D E. Real, Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate the effects of spray-dried blood meal and its pH on nursery pig performance. Spray-dried blood meal pH decreases as storage time increases prior to spray drying. In Exp. 1, addition of 2.5% spray-dried blood meal to the diet improved ADG and ADFI in nursery pigs (15.4 lb to 35.9 lb), but did not influence feed efficiency. In Exp. 2, the inclusion of 5% spray-dried blood meal improved feed efficiency without affecting ADG or ADFI. The pH (7.4 to 5.9 in Exp. 1 and 7.6 to 5.9 in Exp. 2) of the blood meal did …

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Effects Of A Seaweed Extract On Weanling Pig Growth Performance And Immune Function During An Acute Enteric Disease Challenge (2000), J L. Turner, J R. Werner, C M. Hill, K Skjolaas, S Hogge, J Ernest Minton, Steven S. Dritz Jan 2000

Effects Of A Seaweed Extract On Weanling Pig Growth Performance And Immune Function During An Acute Enteric Disease Challenge (2000), J L. Turner, J R. Werner, C M. Hill, K Skjolaas, S Hogge, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 95 pigs (initially 15 lb and 17 d of age) was used in a 28 d growth trial to determine the effects of Ascophyllum nodosum seaweed extract (ANOD) on weanling pig growth performance and immune function in response to enteric disease challenge with Salmonella typhimurium (ST). Experimental treatments were arranged in a 2 x 4 factorial with main effects of disease challenge (control vs. ST challenge) and dietary addition of ANOD (0, 0.5, 1.0, and 2.0% of diet). Results suggest little beneficial effect of dietary ANOD on growth performance or immune response in the presence or absence …

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Use Of Infrared Thermography To Evaluate Differences In Mean Body Surface Temperature And Radiant Heat Loss In Growing Pigs (2000), J A. Loughmiller, M F. Spire, S B. Hogge, B W. James, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2000

Use Of Infrared Thermography To Evaluate Differences In Mean Body Surface Temperature And Radiant Heat Loss In Growing Pigs (2000), J A. Loughmiller, M F. Spire, S B. Hogge, B W. James, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Eighty barrows were used in two experiments to determine the relationship between feed intake or dietary energy concentration and mean body surface temperature (MBST) and mean body surface radiant heat loss (MBSL) as measured using infrared thermographic images. In Exp. 1, feed intake level was varied. As expected, pigs with higher feed intake grew faster. The faster growing pigs had higher MBST and MBSL. In Exp. 2, pigs (initially 130 lb) were allotted to one of four dietary energy levels (1,250 ME/lb, 1,360 ME/lb, 1,475 ME/lb, 1,590 ME/lb). Increasing dietary ME levels increased ADG, G/F, ME intake, MBST, and MBSL. …

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