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Full-Text Articles in Life Sciences
Hydrocortisone Acetate-Injected Piglets Have A Larger Pancreas And Greater Mucosal Weight And Lactase, Maltase, And Sucrose Activities In The Duodenum (1989), K K. Kreikemeier, D L. Harmon, Jim L. Nelssen
Hydrocortisone Acetate-Injected Piglets Have A Larger Pancreas And Greater Mucosal Weight And Lactase, Maltase, And Sucrose Activities In The Duodenum (1989), K K. Kreikemeier, D L. Harmon, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
One litter of 12 piglets was used in a completely random design to evaluate the effects of hydrocortisone acetate injections on organ weight and carbohydrase activities. Dams' milk was the only food source available to the piglets. When they were 7 d old, six pigs were injected with hydrocortisone acetate (50 mg/kg BW; 50 mg/ml) and six others were injected with an equal volume of saline (1 ml/kg BW). When the pigs were 14 d old, tissues were collected, weighed, and analyzed for carbohydrase activities. Hydrocortisone acetate injection had no effect on pig daily gain (d 7 to 14), liver …
The Reaction Of Slaughter Hog Cash And Futures Prices To Usda Hogs And Pigs Reports (1989), Ted C. Schroeder, J R. Mintert, John M. Blair
The Reaction Of Slaughter Hog Cash And Futures Prices To Usda Hogs And Pigs Reports (1989), Ted C. Schroeder, J R. Mintert, John M. Blair
Kansas Agricultural Experiment Station Research Reports
This study examined the reaction of slaughter hog cash and futures prices to USDA Hogs and Pigs reports. Over the 1972-87 period, the nearby live hog futures price had $1/cwt or larger absolute price changes on 48% of the trading days immediately after the Hogs and Pigs report release compared to 6% of the days of the release, suggesting that the reports arc providing important new information to the market. Average price moves in cash and futures markets following the report releases were positive, suggesting that price usually increased the day after the reports. Over the 1972-87 period, the cash …
Will Porcine Somatotropin (Pst) Lower Pork Quality? (1989), Melvin C. Hunt, Patter G. Whipple-Van, R D. Klemm, B R. Schricker, Robert D. Goodband, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf
Will Porcine Somatotropin (Pst) Lower Pork Quality? (1989), Melvin C. Hunt, Patter G. Whipple-Van, R D. Klemm, B R. Schricker, Robert D. Goodband, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf
Kansas Agricultural Experiment Station Research Reports
The types and diameters of muscle fibers from 30 barrows that had received daily injections of porcine somatotropin (pST) or a placebo and were fed dietary lysine at .6, .8, 1.0 or 1.2% were determined. Fiber data indicated that pST slightly increases the anaerobic metabolic potential of longissimus muscle. The higher levels of lysine caused enlargement of muscle cells. Earlier research has shown that this type of muscle biochemistry contributes to development of PSE muscle. Thus, use of pST in certain strains of pigs may lead to reductions in muscle quality.; Swine Day, Manhattan, KS, November 16, 1989
Effects Of A Flavoring Agent On Finishing Swine Performance (1989), M E. Johnston, G R. Stoner, Jim L. Nelssen
Effects Of A Flavoring Agent On Finishing Swine Performance (1989), M E. Johnston, G R. Stoner, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
A finishing study was conducted to evaluate the effect of a commercially available flavoring agent on finishing pig performance. One hundred ninety-two finishing pigs were used in the study. Half the pigs received the finishing diet with added flavor, whereas the other half received the same diet without flavor. There were no differences in average daily gain (ADG) between pigs fed either the flavored or non-flavored feed. However, the pigs receiving flavored feed had significantly higher average daily feed intake for the entire trial. Feed efficiency was better for pigs fed the non-flavored diet than for those fed the flavored …
Effects Of Daily Porcine Somatotropin Administration On The Performance And Carcass Characteristics Of Finishing Swine (1989), G E. Fitzner, David A. Nichols, B R. Schricker, D E. Darden, T L. Weeden, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen, Donald H. Kropf
Effects Of Daily Porcine Somatotropin Administration On The Performance And Carcass Characteristics Of Finishing Swine (1989), G E. Fitzner, David A. Nichols, B R. Schricker, D E. Darden, T L. Weeden, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen, Donald H. Kropf
Kansas Agricultural Experiment Station Research Reports
One hundred forty-four pigs (72 barrows and 72 gilts) were utilized in six treatments with six pens each to evaluate four levels of daily porcine somatotropin (pST) injections (0, 1, 3, or 5 mg/d) in combination with diets containing 13 or 16% crude protein (CP). One randomly selected pig from each pen was slaughtered when it reached a weight between 230 and 240 lb. Daily feed intake (ADFI), tenth rib backfat, and estimated percentage of lean pork were reduced in pigs fed the 13% CP diet and injected with 3 mg/d pST compared to pigs fed the same diet and …
Effect Of Soybean Processing On Starter Pig Performance And Nutrient Digestibility (1989), D F. Li, R C. Thaler, Jim L. Nelssen, Keith C. Behnke
Effect Of Soybean Processing On Starter Pig Performance And Nutrient Digestibility (1989), D F. Li, R C. Thaler, Jim L. Nelssen, Keith C. Behnke
Kansas Agricultural Experiment Station Research Reports
One hundred sixty-eight pigs were used to evaluate the effect of soybean processing on starter pig performance and nutrient digestibility. Soybean products tested were commercial soybean meal, full-fat roasted soybeans from either a Roast-A-Tron or Rickles Roaster, extruded soybeans, and steam-flaked soybeans. Pigs fed soybeans from the Rickles Roaster had lower average daily gain, average daily feed intake, and feed efficiency than pigs fed the other soybean products. Rickles soybeans had lower apparent digestibility of nitrogen, dry matter, total fat, and long chain fatty acids than the other treatments. Pigs fed steam-flaked soybeans had the second lowest growth rate. These …
The Effect Of Dietary Energy Density On Growth Performance Of Finishing Swine Treated With Porcine Somatotropin (1989), G R. Stoner, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines
The Effect Of Dietary Energy Density On Growth Performance Of Finishing Swine Treated With Porcine Somatotropin (1989), G R. Stoner, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
A growth study (60 barrows averaging 125.4 lb) was conducted to evaluate the effect of dietary energy density on growth performance of finishing pigs treated with porcine somatotropin (pST). Barrows were blocked on weight and allotted randomly to pens (2 barrows/pen, 5 pens/treatment). Barrows were injected daily with 4 mg pST and fed six experimental diets with four energy densities (1.37, 1.48, 1.60, or 1.71 Meal ME/lb) and four lysinc:energy ratios (4.0, 3.7, 3.4, or 3.2 g lysine/Mcal ME). Diets were formulated to contain at least 200% of NRC (1988) recommendations for essential nutrients. Increasing dietary energy density and adjusting …
Improved Pork Products For The 1990'S (1989), Donald H. Kropf
Improved Pork Products For The 1990'S (1989), Donald H. Kropf
Kansas Agricultural Experiment Station Research Reports
The word "improved" in a commercial sense means "altered product characteristics to meet the consumers' real and perceived needs." The pork industry in the 90's must progress toward offering products designed to meet consumer demands instead of saying "this is what we are producing and you'd better buy it." For the pork producer, "improved" means those products that will. increase pork sales. We must realize that the primary nutritional contributions of pork to human diets will be protein and vitamins, especially B-vitamins. Perhaps we should emphasize these more in our advertising, but good flavor, low fat, low salt, and convenience …
Effect Of Lysine Level And Supplemental Soybean Oil Fed During Lactation On Sow And Litter Performance Through Two Parities (1989), T L. Weeden, R C. Thaler, D F. Li, G L. Fitzner, Jim L. Nelssen, Robert H. Hines
Effect Of Lysine Level And Supplemental Soybean Oil Fed During Lactation On Sow And Litter Performance Through Two Parities (1989), T L. Weeden, R C. Thaler, D F. Li, G L. Fitzner, Jim L. Nelssen, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
A total of 158 gilts were fed ad libitum one of the following four diets during lactation: .65% lysine, .75% lysine, .65% lysine + 3% soybean oil, and .75% lysine + 3% soybean oil. These same sows were carried through a second parity on the same lactation diet treatments. In parity 1, lysine level had no effect on feed intake or interval from weaning to estrus. Addition of 3% soybean oil increased the weaning to estrus interval and decreased feed intake, although caloric intake was not different. In parity 2, there was no effect on feed intake from 3% supplemental …
Effects Of Lecithin And Lysolecithin On The Digestibility Of Fat Sources In Diets For Weanling Pigs (1989), D B. Jones, Jim L. Nelssen, Robert H. Hines, Joe D. Hancock
Effects Of Lecithin And Lysolecithin On The Digestibility Of Fat Sources In Diets For Weanling Pigs (1989), D B. Jones, Jim L. Nelssen, Robert H. Hines, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Ninety-six pigs (17 d of age and 11.6 lb initial wt) were utilized to determine if adding emulsifiers (lecithin and lysolecithin) to diets containing 10% added fat would affect nutrient digestibility. Fat sources were: 1) soybean oil, 2) tallow, 3) lard, and 4) coconut oil. Lecithin and lysolecithin were added as 10% of the added fat. Pigs were limit fed using the following equation: daily feed allowance = .05 x body wt^9. After a 7-d adjustment period, feces were collected for 4 d, pooled, and analyzed for fat, nitrogen, and energy content. Soybean oil and coconut oil were more digestible …
Dose-Response Of Weanling Pigs To Streptococcus Faecium (1990), B J. Healy, Joe D. Hancock, Daniel Y.C. Fung, C Liang, S L. Yu
Dose-Response Of Weanling Pigs To Streptococcus Faecium (1990), B J. Healy, Joe D. Hancock, Daniel Y.C. Fung, C Liang, S L. Yu
Kansas Agricultural Experiment Station Research Reports
Two 5-wk experiments, using a total of 270 pigs (avg initial wt of 16.1 and 13.11b), were conducted to determine the dose-response relationship between Streptococcus faecium additions to drinking water and performance of newly weaned pigs. In experiment 1, treatments were: 1) untreated control; 2, 3, and 4) .5, 2.5, and 4.5 x 109 CFU of S. faecillm/pig/d; 5) antibioticfed positive control (CSP250 and CUS04)' Bacterial content of feces collected from the pigs on d 7, 14, and 21 indicated that antibiotic feeding greatly reduced fecal content of streptococci. S. faecium given in the water (.5, 2.5, or 4.5 x …
Effects Of Lecithin And Lysolecithin Additions On Growth Performance And Nutrient Digestibility In Weanling Pigs (1989), D B. Jones, Jim L. Nelssen, Robert H. Hines, Joe D. Hancock
Effects Of Lecithin And Lysolecithin Additions On Growth Performance And Nutrient Digestibility In Weanling Pigs (1989), D B. Jones, Jim L. Nelssen, Robert H. Hines, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Two hundred seventy pigs (21 d of age and 12.8 lb initial wt) were used to determine if adding emulsifiers (lecithin and lysolecithin) to starter pig diets affects growth performance and digestibility of nutrients. Treatments were: 1) corn-soy control; 2) diet 1 with soybean oil; 3) diet 1 with tallow; 4, 5, and 6) diet 3 with lecithin replacing 5%, 10%, and 30% of the tallow; 7, 8, and 9) diet 3 with lysolecithin replacing 5%, 10%, and 30% of the tallow. Average daily gain (ADG), average daily feed intake (ADFI), and feed/gain ratio (F/G) were determined weekly during the …
Effect Of Replacing Milk Products With A Soybean Protein Isolate Milk Replacer In Diets For Nursery Pigs (1989), D B. Jones, D F. Li, Jim L. Nelssen, Joe D. Hancock
Effect Of Replacing Milk Products With A Soybean Protein Isolate Milk Replacer In Diets For Nursery Pigs (1989), D B. Jones, D F. Li, Jim L. Nelssen, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
One hundred eighty pigs (21 d of age and averaging 14.5 lb) were used to determine if a milk replacer containing soybean protein isolate can replace dried skim milk and dried whey in a high nutrient density starter diet. Pigs received pelleted feeds that were: 1) corn-soybean meal control; 2) a high nutrient density diet (HNDD) containing 20% dried skim milk and 20% dried whey; 3 and 4) diet 2 with milk rcplacer substituted for 50% and 100% of the milk products; 5) corn-milk replacer; 6) corn-milk products. Average daily gain (ADG), average daily feed intake (ADFI), feed conversion (F/G), …
Effect Of Roasting On Utilization Of Sunflower Oil Seeds In Nursery Pig Diets (1989), G E. Fitzner, T L. Weeden, D F. Li, D B. Jones, Robert H. Hines, Robert D. Goodband, Joe D. Hancock
Effect Of Roasting On Utilization Of Sunflower Oil Seeds In Nursery Pig Diets (1989), G E. Fitzner, T L. Weeden, D F. Li, D B. Jones, Robert H. Hines, Robert D. Goodband, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
One hundred twelve weanling pigs were used to evaluate effects of diets containing 25% raw or low or high roasted sunflower seeds on performance. Pigs fed meal and pelleted diets containing sunflower seeds roasted to a roaster exit temperature of 264 of (low roast) were more efficient (F/G) than pigs fed raw sunflower seed diets in meal form. Pelleting raw, low roast, and high roast sunflower seed diets significantly improved F/G compared to raw sunflower seed and basal diets fed in meal form. These results indicate that meal diets containing 25% low roasted sunflower seeds or pelleted diets containing 25% …
Space Requirements Of Finishing Pigs Fed To An Average Pen Weight Of 250 Pounds (1989), R I. Nicholson, G E. Fitzner, David A. Nichols, Joe D. Hancock, Robert H. Hines, Robert D. Goodband, Jim L. Nelssen
Space Requirements Of Finishing Pigs Fed To An Average Pen Weight Of 250 Pounds (1989), R I. Nicholson, G E. Fitzner, David A. Nichols, Joe D. Hancock, Robert H. Hines, Robert D. Goodband, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
Space allowances of 6, 8, 10, and 12 ft^2 were evaluated for pigs fed from 130 lb to a pen average of 250 lb. Average daily gain and average daily feed intake. increased linearly (P<.05) as space allowance increased. However, those pigs permitted 10 or 12 ft^2 of space were similar in avg daily gain, avg daily feed intake, and feed efficiency, suggesting that 10 ft^2 of space is adequate for feeding finishing hogs to a heavier average pen weight. Coefficients of variation (CV) for initial weight and final weight were increased for pigs with 6 ft^2, whereas for those exposed to 10 and 12 ft^2, the CV was reduced, indicating more uniform pigs at final weight with greater space allowance.; Swine Day, Manhattan, KS, November 16, 1989
Effects Of Various Fat Sources On Growth Performance Of Finishing Pigs (1989), David A. Nichols, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen
Effects Of Various Fat Sources On Growth Performance Of Finishing Pigs (1989), David A. Nichols, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
One hundred and twenty-eight finishing pigs averaging 124 lb were utilized to evaluate the effects of different fat sources on growth performance. Pigs were fed one of four diets containing either no added fat (control) or 4% added fat from soybean oil, coconut oil, or choice white grease. The control diet was formulated to contain 14.5 % crude protein and .66 % lysine. All fat-added diets were formulated with the same calorie:lysine ratio as the control diet. There were no differences in average daily gain between pigs fed either the control diet or diets containing added fat. Daily feed intake …
Effects Of Heat Stress, Dietary Energy Density And Exogenous Porcine Somatotropin On The Growth Performance Of Finishing Pigs (1989), G R. Stoner, David A. Nichols, G L. Allee, B R. Schricker, Jim L. Nelssen
Effects Of Heat Stress, Dietary Energy Density And Exogenous Porcine Somatotropin On The Growth Performance Of Finishing Pigs (1989), G R. Stoner, David A. Nichols, G L. Allee, B R. Schricker, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
This experiment was conducted to determine the interactive effects of environmental temperature porcine somatotropin (pST) and dietary energy density on the growth performance of finishing pigs. Forty-eight barrows were allotted randomly to four environmental chambers (EC) in a split plot design with two EClwhole plot (WP). Each EC (12 barrows/EC) represented one subplot (SP). The WP 24-h environmental cycles were: thermal neutral (TN), 8 h at 75°F and 50% relative humidity (RH)-1 h transition-14 h at 68°F and 60% RH-1 h transition; and heat stress (HS), 8 h at 95°F and 60% RH-1 h transition-14 h at 82°F and 80% …
New Concepts In Breeding Barn Design (1989), D G. Levis
New Concepts In Breeding Barn Design (1989), D G. Levis
Kansas Agricultural Experiment Station Research Reports
Many existing swine breeding facilities have been designed to control the environment, provide continuous boar-sow contact for stimulating recently weaned sows to cycle, reduce the distance a weaned sow or boar has to be moved for mating, and reduce construction costs by not constructing breeding pens to be used only for mating. Pork producers operating these types of facilities have had problems with efficiency and accuracy of estrous detection, low percentage (70%) of sows bred twice, slick breeding floors, and excessive labor requirements. A breeding facility should be arranged so the work routines, such as estrous detection; moving, mating, and …
Porcine Somatotropin And Dietary Lysine Influence Bone Mineralization And Mechanical Properties In Finishing Swine (1989), B R. Schricker, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen, Donald H. Kropf, Joe D. Hancock
Porcine Somatotropin And Dietary Lysine Influence Bone Mineralization And Mechanical Properties In Finishing Swine (1989), B R. Schricker, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen, Donald H. Kropf, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
The femur, a rib, and third phalanx of the second digit from the front foot were collected from 108 barrows (initial wt = 125 lb) and analyzed to determine the effects of porcine somatotropin (pST) and dietary lysine on bone mineralization and mechanical properties. In Exp. 1, pigs were injected daily with 4 mg pST and fed diets containing .6, .8, 1.0, 1.2, or 1.4% lysine; 1.0% Ca; and .8% P. Control pigs (placebo injection) received the .6% lysine diet. Bone wall thickness (BWT) of the femur increased but ash content decreased as dietary lysine level increased. Stress values and …
Using Immunological Criteria To Predict Utilization Of Soybean Proteins By The Early-Weaned Pig (1989), D F. Li, P G. Reddy, Frank Blecha, R D. Klemm, Jim L. Nelssen, Robert D. Goodband, Joe D. Hancock
Using Immunological Criteria To Predict Utilization Of Soybean Proteins By The Early-Weaned Pig (1989), D F. Li, P G. Reddy, Frank Blecha, R D. Klemm, Jim L. Nelssen, Robert D. Goodband, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Two trials were conducted to determine the suitability of soybean products for baby pigs. For trial 1, 40 weanling pigs were orally infused with .01 lb/pig/d of either dried skim milk (control), soybean meal (48% CP), soy protein concentrate, extruded soy protein concentrate, or soy protein isolate from d 7 to 12 of age, weaned at 21 d of age, and fed a diet containing the corresponding protein source until d 7 postweaning. Sows were fed a corn-corn gluten meal-based diet supplemented with lysine and tryptophan to avoid exposure of pigs to soybean proteins. All pigs were sacrificed at 28 …
Application Of Technology For Maximizing Lean Growth (1989), Robert D. Goodband
Application Of Technology For Maximizing Lean Growth (1989), Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
The swine industry is at a crossroads that either mayor may not change the way we produce pork in the future. As we head into the 90's, we are entering a new era in terms of growth promotion and carcass modification,which will produce overnight what would have taken generations to select for. Of the compounds tested, porcine somatotropin (pST) has the most potential to alter the structure of the swine industry. Many fear the application of this technology because of potential increases in pork production displacing and leading to fewer producers. Because pork quality will be improved tremendously (50% reduction …
Effects Of Dietary Lysine Level On Growing Pig Performance (1989), D F. Li, M E. Johnston, Jim L. Nelssen, Robert D. Goodband
Effects Of Dietary Lysine Level On Growing Pig Performance (1989), D F. Li, M E. Johnston, Jim L. Nelssen, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
A growth trial utilizing 120 pigs (avg initial wt 43.4 lb) was conducted to investigate the lysine requirement for pigs weighing 45 to 75 lb. Pigs were fed a corn-soybean meal diet containing .65, .75, .85, .95, or 1.05% lysine. Average daily gain (ADG) and feed/gain (F/G) were determined weekly, and plasma urea concentration was determined at the end of the first and last week of the experiment. At d 14, ADG was increased and F/G improved with increasing lysine level. Gain was best for pigs fed the .95% lysine diet at d 14 and for those fed .85% lysine …
Effect Of Diet Particle Size On Utilization Of Sunflower Oil Seeds In Nursery Pig Diets (1989), G E. Fitzner, T L. Weeden, Robert H. Hines, Robert D. Goodband
Effect Of Diet Particle Size On Utilization Of Sunflower Oil Seeds In Nursery Pig Diets (1989), G E. Fitzner, T L. Weeden, Robert H. Hines, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
One hundred ninety-two weanling pigs were fed diets containing 15 or 25% sunflower oil seeds that were ground using a hammermill equipped with either a 1/8 or 3/16 in. screen. Average daily gain (ADG) of pigs fed the 25% sunflower seed diet ground through a 1/8 in. screen was similar to ADG of pigs fed the control diet or that with 15% sunflower seeds, although there was a reduction in ADFI. This indicates that finely ground sunflower seeds can be utilized in nursery pig diets up to 25% with no impairment in performance.; Swine Day, Manhattan, KS, November 16, 1989
The Genetics Of Lean Growth (1989), David A. Nichols
The Genetics Of Lean Growth (1989), David A. Nichols
Kansas Agricultural Experiment Station Research Reports
In recent years, the pork industry has faced numerous challenges. As consumer resistance to fatter meats has increased, the industry has had two options, 1) argue against popular opinion that fat consumption posed a health risk or 2) strive to reduce the fatness of their products. Since the first option is highly unlikely, the NPPC and commodity leaders have moved rapidly, decisively, and aggressively to promote and reposition pork as a vital, healthful part of the U.S. diet. Pork consumption from 1965 to 1985 was reasonably stable (1965, 45 lb; 1985, 44.2 lb). Demand has been stable to declining in …
Effect Of Various Fat Sources On Starter Pig Gut Morphology And Nutrient Digestibility (1989), D F. Li, R C. Thaler, D L. Harmon, T L. Weeden, Jim L. Nelssen
Effect Of Various Fat Sources On Starter Pig Gut Morphology And Nutrient Digestibility (1989), D F. Li, R C. Thaler, D L. Harmon, T L. Weeden, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
One digestion trial utilizing 24 weanling pigs was conducted to compare the effect of various fat sources on gut morphology and ileal nutrient digestibility. Diets had either no added oil (control) or were supplemented with 10% either soybean oil, coconut oil or a combination of soybean oil and coconut oil (1:1 ratio). Pigs were sacrificed on 29 d of age, and ileal digesta were collected. Villus height and crypt depth were measured at the midpoint of the small intestine. Results indicate that pigs fed the combination of soybean oil and coconut oil had longer villus height and slightly higher ileal …
Effect Of Fat Combinations On Starter Pig Performance And Nutrient Digestibility (1989), D F. Li, D L. Harmon, G E. Fitzner, D B. Jones, Jim L. Nelssen, Robert D. Goodband
Effect Of Fat Combinations On Starter Pig Performance And Nutrient Digestibility (1989), D F. Li, D L. Harmon, G E. Fitzner, D B. Jones, Jim L. Nelssen, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
A growth trial was conducted to evaluate the effects of addition of soybean oil, coconut oil, 50% soybean oil: 50% coconut oil, 75% soybean oil: 25% coconut oil, and 25% soybean oil: 75% coconut oil on starter pig performance and nutrient digestibility. Diets were supplemented with 10% fat for the first 2 wk of the study and 5% for the final 3 wk. Fecal samples were collected from pigs by rectal massage, and apparent digestibility of DM, N, total fat, and fatly acids were calculated using chromic oxide (.3%) as an indigestible marker. Results demonstrated that ADG and feed efficiency …
Maximizing Farrowing Rate (1989), D G. Levis
Maximizing Farrowing Rate (1989), D G. Levis
Kansas Agricultural Experiment Station Research Reports
Farrowing rate can be defined as: 1) the number of mated females that farrow within a contemporary group per total number of MATED females for this group or 2) the number of females that farrow within a contemporary group per total number of EXPOSED females for this group. Generally, the first definition is used when hand-mating, whereas the second definition has to be used when pen-mating. Regardless of the definition, farrowing rate can be maximized only by taking total control of the breeding herd. High farrowing rates will result when fertility is high in boars, sows, and gilts; however, excellent …
Growth Response To Dietary Additions Of Bacillus Subtilis From Weaning To 230 Pounds (1989), J A. Swanson, Joe D. Hancock
Growth Response To Dietary Additions Of Bacillus Subtilis From Weaning To 230 Pounds (1989), J A. Swanson, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Two hundred fifty-five pigs, weaned at 4 wk of age, were used in an experiment to compare the efficacy of Bacillus subtilis and antibiotics as growth promoters for swine from nursery to finishing. Treatments were a nonmedicated control; B. subtilis added at 5 x 105, 1 X 106, or 5 x 106 CFU/g feed; or antibiotics (50 g/ton carbadox during the nursery phase and 100 g/ton chlortetracycline in the growing and finishing phases). Average daily gain and average daily feed intake were greater for pigs fed antibiotics in the nursery and grower phases than for pigs fed diets containing no …
The Effect Of Dietary Energy Density And Porcine Somatotropin On Apparent Digestibility And Retention Of Nutrients In Finishing Swine (1989), G R. Stoner, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines
The Effect Of Dietary Energy Density And Porcine Somatotropin On Apparent Digestibility And Retention Of Nutrients In Finishing Swine (1989), G R. Stoner, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
Sixteen barrows were used in a metabolism study (avg wt of 101.2 lb) to evaluate the effect of dietary energy density and porcine somatotropin (pST) on apparent digestibility and retention of nutrients in finishing pigs. This study was designed as a split-plot with 4 mg pST/d or placebo injection as whole plot treatments and four dietary energy densities (1.37, 1.48, 1.60, and 1.71 Meal ME/lb) and period as the subplot treatments. Increasing dietary energy density increased apparent digestibility of dry matter, gross energy, and nitrogen, but had no effect on nitrogen retention. Porcine somatotropin administration had no effect on apparent …
Relationships Between Ovulation Rate And Litter Size For Flushed And Nonflushed Gilts (1989), M T. Rhodes, Duane L. Davis, Jeffrey S. Stevenson
Relationships Between Ovulation Rate And Litter Size For Flushed And Nonflushed Gilts (1989), M T. Rhodes, Duane L. Davis, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
We examined the effects of flushing (3.4 lb additional ground milo for approximately 2 wk before insemination) and pubertal status (inseminated at puberty or postpuberty) on ovulation rate and litter traits in gilts. Hushing resulted in 1.1 more eggs released at ovulation and 1.3 more pigs/litter. The response in litter size occurred primarily among gilts inseminated at their pubertal estrus. Neither flushing nor pubertal status affected prenatal survival. Data for 58 gilts were used to evaluate the relationship between ovulation rate and litter size. Litter size increased linearly with increased ovulation rate to a maximum of 13 pigs when 19 …