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Animal Sciences

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1988

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Articles 31 - 60 of 118

Full-Text Articles in Life Sciences

Influence Of Sustained Rumensin Release On Steer Performance And Forage Utilization, B. Cochran, E. Vanzant, T. Avery, Jack G. Riley Jan 1988

Influence Of Sustained Rumensin Release On Steer Performance And Forage Utilization, B. Cochran, E. Vanzant, T. Avery, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Steers managed within an intensive-early stocking program and receiving Rumensin® via a slow-release bolus tended to have higher average daily gains than steers not receiving Rumensin. However, forage organic matter intake, fill, digestibility, and diet selection showed little response to Rumensin administration.

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Effect Of Medicated Mineral Mixtures And A Pinkeye Vaccine On The Gain And Health Of Steers Grazing Native Grass Pastures, F. Brazle Jan 1988

Effect Of Medicated Mineral Mixtures And A Pinkeye Vaccine On The Gain And Health Of Steers Grazing Native Grass Pastures, F. Brazle

Kansas Agricultural Experiment Station Research Reports

Feeding supplements containing an antibiotic or ionophore improved stocker gains by .06 to .26 lb per head daily. A combination of Bovatec and Aureomycin in the mineral mixture improved (P<.08) steer gains over feeding Aureomycin alone. Mineral intake was higher than expected for the steers grazing burned, double-stocked) native grass pastures in 1987. Vaccinating steers with Piliguard at turn-out had no effect on pinkeye incidence and reduced stocker gains slightly.

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Effect Of Cobactin On The Feedlot Performance And Carcass Traits Of Beef Steers, L. Corah, Ronald V. Pope Jan 1988

Effect Of Cobactin On The Feedlot Performance And Carcass Traits Of Beef Steers, L. Corah, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

The addition of Cobactin to feedlot rations had no significant effect on average daily gain or feed efficiency, but did improve quality grade of steers fed for 110 days.

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Effect Of Grain Source And Brewer's Grain On The Performance And Serum Cholesterol Concentration Of Finishing Steers, G. Goldy, Jack G. Riley Jan 1988

Effect Of Grain Source And Brewer's Grain On The Performance And Serum Cholesterol Concentration Of Finishing Steers, G. Goldy, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

The inclusion of brewer's grains at 20% of the ration dry matter increased dry matter intake, resulting in poorer feed efficiency. Brewer's grain appeared to increase serum cholesterol. Serum cholesterol increased as days on feed increased, similar to other reported studies. Steers fed grain sorghum had greater dry matter intakes and poorer feed efficiencies than those fed barley or wheat. Analysis of tissue samples has not been completed at this time, which prohibits drawing any conclusions as to the effect on tissue cholesterol concentrations.

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Nutrient Requirements Of Dairy Cattle Revised (1988), James R. Dunham Jan 1988

Nutrient Requirements Of Dairy Cattle Revised (1988), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

The 1988 National Research Council's (NRC) Nutrient Requirements of Dairy Cattle have been revised. Adjustments have been made in the recommended requirements for net energy for lactation (NEL); crude protein (CP); calcium (Ca); phosphorus (P); and vitamins A, D, and E. In addition, suggestions are made for using undegraded intake protein (UIP) and degraded intake protein (DIP) for diet formulation.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Milking Management Clinics (1988), James R. Dunham, Edward P. Call Jan 1988

Milking Management Clinics (1988), James R. Dunham, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Thirty Milking Management Clinics have been conducted at various on-farm locations. The clinics have demonstrated that good milking techniques can result in an additional 1891 lb milk yield/cow in a 10-mo lactation and an increased milk flow rate of 0.9 lb/min. Additional demonstrations include: I) teat dipping techniques, 2) proper sanitation programs, 3) antibiotic sensitivity culturing, 4) residue avoidance programs, 5) dry cow treatment techniques, and 6) milking equipment evaluation.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Sunflower Oil Seeds In Nursery Pig Diets (1988), G E. Fitzner, Robert H. Hines Jan 1988

Sunflower Oil Seeds In Nursery Pig Diets (1988), G E. Fitzner, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Two hundred forty pigs were used to evaluate the use of various amounts (0, 10, 15, 20, 25%) of black sunflower oil seeds in weanling pig diets. After 14 days, no significant differences were found between any of the dietary treatments in feed intake (FI), average daily gain (ADG), or feed efficiency (F/G). At the conclusion of the 5-wk study, no differences were found in FI, ADG, or F/G between those dietary treatments containing 0, 10, and 15% sunflower seeds. However, in those diets containing 20 and 25% sunflower seeds, there were linear (p<.05) reductions in FI and ADG. These results indicate that sunflower seeds, when finely ground using a hammermill with a 1/8 in screen, can be used in diets for weanling pigs up to 15% of the diet with no reduction in performance.; Swine Day, Manhattan, KS, November 17, 1988

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Hog Feeders? (1988), Robert H. Hines Jan 1988

Hog Feeders? (1988), Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

During the past 6 yr, extensive research has been conducted at KSU to evaluate feeding systems and various types of wet and dry feeders. Comparisons have been made between timed-feeding and ad libitum feeding systems using dry or wet feeders. Timed-feeding did not improve pig performance (ADG, F/G) when compared with ad libitum dry feeding. Wet feeding in most of the trials resulted in approximately 5% improvement in both average daily gain and feed efficiency. Feeding hogs with an oval or rectangular dry feeder resulted in similar pig performance. A11 feeders were easily adjusted to reduce feed wastage to a …

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The Effects Of Dietary Lysine Level On Performance Of Pigs Weaned At Two Weeks Of Age (1988), R C. Thaler, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen Jan 1988

The Effects Of Dietary Lysine Level On Performance Of Pigs Weaned At Two Weeks Of Age (1988), R C. Thaler, Robert D. Goodband, Robert H. Hines, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

One-hundred fifty pigs weaned at 14 ± 2 days of age and averaging 9.8 ± 2.8 lb were used to determine the effects of increasing levels of dietary lysine on pig performance. Pigs were fed a pelleted corn-soybean meal diet (1.10% lysine) containing 20% dried skim milk and 14.4 % lactose or diets containing 1.25, 1.40, 1.55, or 1.70% lysine provided by L-lysine HCI. Average daily gain (ADG), feed conversion (F/G), and plasma urea concentrations were determined on day 7, 14, and 21 of the experiment. On day 7, ADG increased linearly (P<.05) with increasing lysine level. By day 21, ADG was increased 12% (linear and quadratic P<.15) for those pigs fed the 1.40% lysine diet. On day 7, 14, and 21, F/G improved (linear and quadratic P<.02) and plasma urea concentrations decreased (linear, quadratic, and cubic P<.O 1) as lysine level increased. Feed intake was not affected by dietary treatment (P>.20). At the end of the 21 …

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Effect Of Limited - Creep Feeding On Performance Of Spring-Born Calves, D. Simms, Gerry L. Kuhl Jan 1988

Effect Of Limited - Creep Feeding On Performance Of Spring-Born Calves, D. Simms, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

Three limited-creep feeding trials were conducted with spring-born suckling calves on native grass. The 1696 crude protein, high energy creep feed containing Bovatec® was fed from mid-August to weaning in mid-October. Limited-creep feeding increased (P<.05) calf gains .19 lb per/head/daily with an average daily consumption of 2.15 lb, giving a creep feed-to-gain conversion rate of 11.2.

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Effect Of Limit-Fed, High Energy Growing Rations On The Performance Of Feedlot Steers, G. Goldy, B. Downey, K. Bolsen, Jack G. Riley Jan 1988

Effect Of Limit-Fed, High Energy Growing Rations On The Performance Of Feedlot Steers, G. Goldy, B. Downey, K. Bolsen, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Steers red high-concentrate limit-fed rations were more efficient during growing than steers fed silage plus grain at 25% of their dry matter (DM) intake, or silage only. The limit-fed cattle also tended to gain faster (P<.10) and were more efficient (P<.05) during the finishing phase and did not have the expected depressed DM intakes compared to cattle fed the other growing-phase rations. Steers fed barely had lower DM intakes (P<.05) but gained more efficiently (P<.05) than those fed grain sorghum.

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Timing Of Parturition In Dairy Cattle (1988), Jeffrey S. Stevenson Jan 1988

Timing Of Parturition In Dairy Cattle (1988), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

A recent survey of calvings of dairy heifers and cows revealed that fall calvings occurred in a nonrandom pattern. The survey was conducted in a large 5,000-cow herd in which pregnant females were watched 24 hr/day. Fewer (P<.005) calves (42%) were born during the night-time hours of darkness (6 p.m. to 6 a.m.) than during daylight hours (58%). The time of day when calving occurred was unrelated to the duration of pregnancy or to any of the climatic variables measured, including daily temperatures (highs or lows), barometric pressure, relative humidity, precipitation, average wind velocity, or percentage of sunshine. Although some reports and popular opinion have suggested that time of calving might be influenced partly by prevailing weather conditions, our data fail to support this notion. We are unable to explain the observed nonrandom pattern of calving, except that it might be influenced by other management routines on the farm.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Double Inseminations And Treatment Of Repeat Breeders With Gonadotropin-Releasing Hormone (1988), Jeffrey S. Stevenson, Edward P. Call, R.K. Scoby, A.P. Phatak Jan 1988

Double Inseminations And Treatment Of Repeat Breeders With Gonadotropin-Releasing Hormone (1988), Jeffrey S. Stevenson, Edward P. Call, R.K. Scoby, A.P. Phatak

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted in one Kansas and five California dairy herds to determine if double inseminations with and without treatment with 100 µg gonadotropinreleasing hormone (GnRH) would improve conception rates of repeat-breeding dairy cattle (n=723). Both lactating cows and virgin dairy heifers were assigned randomly to treatments as repeat breeders, if they had failed to conceive to at least two previous services. Cows inseminated once and treated with GnRH had the best conception rates (41%), which were higher (P<.OI) than those of cows inseminated once without GnRH treatment (32%) and higher (P<.OI) than those of cows inseminated twice without treatment with GnRH (33%). Cattle bred twice that received the GnRH treatment had intermediate rates (37%). We conclude that treatment of repeat breeders with GnRH at the time of insemination (only one service given according to the am-pm, pm-am rule) improved conception rates.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Managing The High-Producing Herd. Iii.Producing High Quality Milk (1988), John E. Shirley Jan 1988

Managing The High-Producing Herd. Iii.Producing High Quality Milk (1988), John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Progress in the dairy industry over the past 30 yr can be defined as a movement toward fewer farms, more cows per farm, fewer total cows, more milk per cow, a gradual decline in total annual milk production from 1950 through 1975 followed by a sharp increase through 1985, a decrease in per capita consumption, and an increase in milk quality.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Animal Drugs And The Milk Supply (1988), R.W. Wilson Jan 1988

Animal Drugs And The Milk Supply (1988), R.W. Wilson

Kansas Agricultural Experiment Station Research Reports

The makers of the laws, rules, and regulations governing the production and processing of milk have recognized that milk is the primary diet of the very young and old. This fact mandates that it should be produced and processed in a manner to protect and maintain it in a pure, safe, and unadulterated condition. To determine adulteration of any milk product, one must first understand the legal definition of that product. In general, milk is defined as "the lacteal secretion of healthy cows that is practically free from colostrum." Anything that alters the product from the intent of this definition …

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Quality Milk: A Veterinarian's Viewpoint (1988), D.A. Reid Jan 1988

Quality Milk: A Veterinarian's Viewpoint (1988), D.A. Reid

Kansas Agricultural Experiment Station Research Reports

I would like to thank the organizers of this program for the opportunity to speak to you today on a subject that I feel is of the utmost importance to the dairy industry in the U.S. The problem to which I am referring is not the current devastating drought that has affected many of the dairy-producing areas in our country, but rather the repercussions of the dairy industry's inability to market a wholesome uncontaminated product that is viewed as such by a majority of the consumers in the U.S. I am sure that most of us here can remember the …

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Early Postpartum Luteal Function After Treatment With Progestin And(Or) Gonadotropin-Releasing Hormone In Dairy Cattle (1988), M.O. Mee, Jeffrey S. Stevenson Jan 1988

Early Postpartum Luteal Function After Treatment With Progestin And(Or) Gonadotropin-Releasing Hormone In Dairy Cattle (1988), M.O. Mee, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Progestin (Norgestomet®) and(or) repeated low-dose infusions of GnRH (Cystorelin@) influenced the lifespan of the first corpus luteum after an induced ovulation. Holstein cows (n=32) were assigned at calving to four groups. Cows were treated with blank ear implants (days 2 to 9 after calving) and saline infusion (48 hr on days 10 arid II), progestin ear implants and saline infusion, blank implants and GnRH infusion, or progestin implants and GnRH infusion prior to a GnRH-induced ovulation (day 12). Four primiparous and four multiparous cows were assigned to each treatment. Fewer cows treated with progestin/GnRH ovulated in response to the GnRH …

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Bovine Recombinant Interleukin-2 Enhances Resistance To Bovine Herpesvirus-1: Dose Response Trial (1988), P.G. Reddy, Frank Blecha, J.L. Morrill, H.C. Minocha Jan 1988

Bovine Recombinant Interleukin-2 Enhances Resistance To Bovine Herpesvirus-1: Dose Response Trial (1988), P.G. Reddy, Frank Blecha, J.L. Morrill, H.C. Minocha

Kansas Agricultural Experiment Station Research Reports

Twenty-five calves were allotted to five groups: controls that did not receive bovine recombinant interleukin-2 (rIL-2) and four groups that received 5 daily injections of rIL-2 at 11.4, 1.1,0.11, or 0.0 II µg/lb/day. On day 0 of the experiment, all calves received bovine herpesvirus-I (BHV-1) vaccine and the first of the 5 daily injections of bovine rIL-2. All calves were infected with BHV-Ion day 21 of the experiment. Calves treated with 11.4 µg /Ib/day had elevated rectal temperatures and mild diarrhea during administration of rIL2. All other calves were normal. Compared to control calves, those treated with 11.4, 1.1, and …

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Effect Of Route Of Administration Of Lasalocid On Response Of Young Dairy Calves (1988), S.D. Pruitt, J.L. Morrill, Tiruvoor G. Nagaraja, N.V. Anderson Jan 1988

Effect Of Route Of Administration Of Lasalocid On Response Of Young Dairy Calves (1988), S.D. Pruitt, J.L. Morrill, Tiruvoor G. Nagaraja, N.V. Anderson

Kansas Agricultural Experiment Station Research Reports

Forty newborn bull calves were assigned to one of four feeding groups. The feeds either contained lasalocid in milk (M), prestarter (PS), and starter (S); lasalocid in PS and S; lasalocid in S only; or no lasalocid. Calves were fed M at 8% of birth weight (bw) daily and offered PS to a maximum of 0.5 lb daily. When 0.5 lb of PS was consumed in one day the calves were fed M at 4% of bw daily. They were weaned when they consumed dry feed at the rate of 1.3% of bw. Daily feed intake and weekly weight gains …

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The Evaluation Of Rapid Methods For Monitoring Free Fatty Acid Levels In Cheese (1988), W.G. Ikins, H.S. Kwak, G.S. Zink, I.J. Jeon Jan 1988

The Evaluation Of Rapid Methods For Monitoring Free Fatty Acid Levels In Cheese (1988), W.G. Ikins, H.S. Kwak, G.S. Zink, I.J. Jeon

Kansas Agricultural Experiment Station Research Reports

The amount of free fatty acids present in cheese is important to dairy processors because these compounds make a significant contribution to the overall flavor. In this study, the results obtained using three relatively rapid methods of determining free fatty acids concentrations in cheese were compared to those acquired by using a more laborious but accurate gas chromatographic technique. One method, the Extraction-Titration Method, was found to be superior to the others because of its simplicity and reliability. In addition, the values obtained by this method were found to closely correlate with short chain fatty acid concentrations of cheese as …

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Small Intestinal Starch, Dextrin, And Glucose Digestion In Steers (1988), K.K. Kreikmeier, D.L. Harmon, T.B. Avery, Robert T. Brandt Jr. Jan 1988

Small Intestinal Starch, Dextrin, And Glucose Digestion In Steers (1988), K.K. Kreikmeier, D.L. Harmon, T.B. Avery, Robert T. Brandt Jr.

Kansas Agricultural Experiment Station Research Reports

Three Holstein steers (930 lb) were surgically fitted with abomasal and ileal cannulae, portal and mesenteric venous catheters, and an elevated carotid artery and used to study small intestinal starch digestion. Water, corn starch (66 g/hr), corn dextrin (66 g/hr), or glucose (66 g/hr) were continuously infused into the abomasum. Small intestinal disappearance of corn dextrin (57 g/hr) and glucose (57 g/hr) were higher (P<.05) than that of starch (48 g/hr). The percentage of carbohydrate disappearance accounted for as net portal glucose flux was 52, 54, and 72% for corn starch, corn dextrin, and glucose, respectively. Small intestinal starch utilization in the bovine may be limited by starch granular characteristics, enzyme activity, and glucose transport across the small intestine.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Effects Of Production On Reproductive Traits In Kansas Holstein Herds (1988), Edward P. Call Jan 1988

Effects Of Production On Reproductive Traits In Kansas Holstein Herds (1988), Edward P. Call

Kansas Agricultural Experiment Station Research Reports

The analysis of dairy herds to evaluate the reported negative effect of production on reproduction failed to identify a real relationship. Higher-producing herds excel in all areas of reproductive performance, except conception rate. Of greatest importance is the annual reproductive loss that is affected by the reproductive traits measured. As production per cow increased, the yearly dollar loss per cow declined from a high of $163 to $73 yearly in the group averaging 20,118 lb milk.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Errors In Heat Detection Are Costly (1988), Jeffrey S. Stevenson Jan 1988

Errors In Heat Detection Are Costly (1988), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Attention to heat detection will decrease reproduction losses and costs associated with extended calving intervals and high culling rates. Errors in diagnosing heat (errors of commission) and missed heats (errors of omission) are the major errors of a heat detection program. Priority must be given to heat detection to improve reproductive efficiency and reduce the costs of reproductive failure on dairy farms.; Dairy Day, 1988, Kansas State University, Manhattan, KS, 1988;

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Cause And Control Of Hydrolytic Rancidity In Raw Milk (1988), I.J. Jeon Jan 1988

Cause And Control Of Hydrolytic Rancidity In Raw Milk (1988), I.J. Jeon

Kansas Agricultural Experiment Station Research Reports

One of the common and important off-flavors in milk is hydrolytic rancidity or lipolyzed flavor. The rancidity results from hydrolytic cleavage of fatty acids from milk fat by the enzyme lipase and their release as free acids. The release of these acids in milk, even in very small amounts, imparts a bitter taste and a sharp, unpleasant aroma. The off-flavor is often described as "goaty", "butyric", "soapy", and "bitter" The term "bitter", however, is ambiguous because bitter flavors can occur from the result of protein breakdowns. Nevertheless, both farm and dairy plant problems may lead to its development. Once an …

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1988 Agricultural Research, Southeast Kansas Branch Station, K. P. Coffey, J. L. Moyer, L. W. Lomas, D. W. Sweeney, G. V. Granade, T. Walter, K. W. Kelley Jan 1988

1988 Agricultural Research, Southeast Kansas Branch Station, K. P. Coffey, J. L. Moyer, L. W. Lomas, D. W. Sweeney, G. V. Granade, T. Walter, K. W. Kelley

Kansas Agricultural Experiment Station Research Reports

Research on beef cattle, crops, and related topics at Southeast Kansas Branch Station.

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Effects Of Ultra Pig Krave Extra® On Starter Pig Performance (1988), G R. Stoner, M E. Johnston, Jim L. Nelssen, Robert H. Hines Jan 1988

Effects Of Ultra Pig Krave Extra® On Starter Pig Performance (1988), G R. Stoner, M E. Johnston, Jim L. Nelssen, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

A growth study and a preference study were conducted to evaluate the effect of a commercially available flavoring agent on starter pig performance. A total of 192, 3-wk old, weaned pigs were utilized. A 2-phase starter program was used in the growth study. Half the pigs received creep feed with added flavor and half without, beginning at 10 days of age. Pigs receiving flavored feed at 10 days of age had significantly better gains and feed intake the first 2 wk postweaning than pigs on nonflavored feed. The pigs in the preference study demonstrated a clear preference for flavored vs …

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Responses Of Pig Embryos To Amino Acids (1988), C F. Rosenkrans, Duane L. Davis Jan 1988

Responses Of Pig Embryos To Amino Acids (1988), C F. Rosenkrans, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Mixtures of vitamins and amino acids produced detrimental effects on the development of pig embryos. However, addition of three amino acids, phenylalanine, methionine, and isoleuncine, enhanced pig embryo development.; Swine Day, Manhattan, KS, November 17, 1988

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Effect Of Processing On The Nutritional Value Of Soybean Proteins (1988), Joe D. Hancock Jan 1988

Effect Of Processing On The Nutritional Value Of Soybean Proteins (1988), Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

It has been recognized for many years that some sort of processing of soybeans will yield a product of superior nutritional value. As our understanding of the effects of different processing techniques increases, we will continue to see advances in technology that will yield soybean products of superior nutritional value. The challenge for livestock producers is to recognize the products that offer improved nutritional benefits and to have the wherewithal to use those products when they are economically advantageous.; Swine Day, Manhattan, KS, November 17, 1988

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Effects Of Raw Soybeans, Roasted Soybeans, And Soybean Oil On Finishing Pig Performance (1988), Robert D. Goodband, Robert H. Hines Jan 1988

Effects Of Raw Soybeans, Roasted Soybeans, And Soybean Oil On Finishing Pig Performance (1988), Robert D. Goodband, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to evaluate the effects of raw soybeans, roasted soybeans, and soybean oil on finishing pig performance. In trial 1 pigs were fed a low protein control diet containing 7.5% soybean meal and synthetic lysine. Raw soybeans were added at levels of 8.75, 11.90, 15.05, and 18.20% of the diet. The raw soybean additions replaced the synthetic lysine and part of the milo in the diet and provided lysine levels of .60, .67, .74, and .81% as raw soybean level increased, respectively. Increasing level of raw soybeans had no affect on average daily gain (ADG) or average …

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The Effects Of Porcine Somatotropin (Pst) And Dietary Lysine Level On Growth Performance And Carcass Characteristics Of Finishing Swine (1988), R C. Thaler, B R. Schricker, G E. Fitzner, A J. Lewis, Robert D. Goodband, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf Jan 1988

The Effects Of Porcine Somatotropin (Pst) And Dietary Lysine Level On Growth Performance And Carcass Characteristics Of Finishing Swine (1988), R C. Thaler, B R. Schricker, G E. Fitzner, A J. Lewis, Robert D. Goodband, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Seventy-two finishing pigs averaging 130 lb were utilized to determine the effects of PST and dietary lysine on growth performance and carcass characteristics. Pigs were injected daily with 4 mg PST in the extensor muscle of the neck and fed either a pelleted corn-sesame meal diet (.6% lysine, 17.7% crude protein) or diets containing .8, 1.0, 1.2, or 1.4% lysine provided by L-lysine HCl. All diets were formulated to contain at least 200% of NRC (1979) recommendations for other amino acids. Control pigs received a placebo injection and the .6% lysine diet. Increasing levels of dietary lysine resulted in increased …

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