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Articles 4831 - 4860 of 5550

Full-Text Articles in Life Sciences

Effects Of Delayed Filling And H/M Inoculant® On Preservation And Quality Of Corn Silage, K. Bolsen, M. Hinds, H. Ilg, J. Hoover Jan 1985

Effects Of Delayed Filling And H/M Inoculant® On Preservation And Quality Of Corn Silage, K. Bolsen, M. Hinds, H. Ilg, J. Hoover

Kansas Agricultural Experiment Station Research Reports

Eight whole-plant corn silages were evaluated using laboratory silos. Treatments were: 1) control (no additive); 2) H/M Inoculant applied to the fresh crop at the forage harvester (H/M-field); and 3) H/M Inoculant applied to the fresh crop at the time of ensiling (H/M-silo). The control and H/M-field treatments were ensiled at 0, 4.5, and 12 hours post-harvest with the fresh crop remaining in the forage wagons until ensiled. The H/M-silo treatment had the inoculant applied immediately prior to ensiling at 4.5 and 12 hours post-harvest. All eight corn silages were well preserved and underwent predominantly lactic acid fermentations. H/M Inoculant …


Vacuum-Packaged Ground Beef: The Influence Of Color And Educational Materials On Consumer Acceptance, N.M. Lynch, Donald H. Kropf, Curtis L. Kastner Jan 1985

Vacuum-Packaged Ground Beef: The Influence Of Color And Educational Materials On Consumer Acceptance, N.M. Lynch, Donald H. Kropf, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Questionnaires were completed by 1750 Kansas grocery shoppers in selected Dillon's supermarkets to determine how product color and educational materials affected their purchase intent of vacuum-packaged ground beef. Half the consumers received educational materials (informed consumers). Informed consumers were more likely (P<.0001) to indicate a positive purchase intent for vacuum-packaged ground beef than uninformed consumers. Informed consumers were as likely to purchase the purple-red, vacuum-packaged product as the bright cherry-red product to which they are accustomed. Product color was important in their product purchase decision. Vacuum-packaged ground beef should compete favorably with the conventionally packaged product, if educational materials are provided to explain the color differences.


New Developments In Feeding Wheat To Cattle, J. Brethour, B. Lee, Jack G. Riley Jan 1985

New Developments In Feeding Wheat To Cattle, J. Brethour, B. Lee, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

At least for the varieties we studied, hard red winter wheat was superior to soft red winter wheat in beef cattle rations. That contradicts the perception that feed wheats should be soft. The net energy values of Larned hard wheat and Hart soft wheat were 102% and 99% that of corn, respectively. Adding Rumensin® to wheat rations improved performance, probably by reducing acidosis instead of increasing ration net energy value. There was a positive associative effect when wheat and milo were fed together but not when wheat and corn or corn and milo were combined. Steer performance was improved by …


Influence Of Temperature And Humidity On The Reproductive Efficiency Of Dairy Cattle (1985), John E. Shirley, G.G. Lagombra Jan 1985

Influence Of Temperature And Humidity On The Reproductive Efficiency Of Dairy Cattle (1985), John E. Shirley, G.G. Lagombra

Kansas Agricultural Experiment Station Research Reports

The reproductive performance of 179 Holstein cows during the period from December 1978 through March 1984 was evaluated with respect to environmental temperature and humidity at the time of insemination. This study was conducted at the Western Kentucky University Farm, Bowling Green, Kentucky. Average monthly temperatures are similar to eastern Kansas, but average humidity is approximately 10 per cent higher. Average seasonal temperature and humidity values during the study period were 37.5°F, 81.2%; 60.2°F, 84.4%; 74.9°F, 89.4%; and 53.6°F, 85.3% for winter, spring, summer and fall, respectively. Conception rates observed were 54%, 46%, 15%, and 39% for winter, spring, summer, …


Controlling Calving Intervals With Prostaglandin F2Α And Fixed-Time Inseminations (1985), Jeffrey S. Stevenson, M.C. Lucy, Edward P. Call Jan 1985

Controlling Calving Intervals With Prostaglandin F2Α And Fixed-Time Inseminations (1985), Jeffrey S. Stevenson, M.C. Lucy, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Prolonged or delayed interval to first breeding is a major cause of long calving intervals. Our objective was to test two methods of artificial insemination by appointment after controlling the onset of estrus for all first breedings after calving. prostaglandin F2α(PGF) was used to time the onset of estrus for cows in two experimental groups. Control cows (inseminated at first heat after 42 days postpartum) had longer intervals to first breeding than the two experimental groups given PCF at 40 to 46 and 51 to 57 days postpartum. Conception rates were lower in the treated cows than in control cows. …


Potential Of Interseeded Soybean And Grain Sorghum As A Forage For Dairy Cattle (1985), John E. Shirley, J. Koger Jan 1985

Potential Of Interseeded Soybean And Grain Sorghum As A Forage For Dairy Cattle (1985), John E. Shirley, J. Koger

Kansas Agricultural Experiment Station Research Reports

Soybeans interseeded with grain sorghum (soy-sorghum) was compared to corn silage as a silage crop for ruminant animals over a 3-year period. Results indicate that DM yields are comparable if soy-sorghum is seeded early (June 6) but less than corn silage when seeded late (June 28). Liquid manure may be substituted for commercial fertilizer without a significant decrease in soy-sorghum DM yield per acre.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Effect Of Sodium Bicarbonate And Sodium Bentonite On Digestion And Rumen Fermentation Characteristics Of Forage Sorghum Silage-Based Diets Fed To Growing Steers (1985), K.A. Jacques, D.E. Axe, T.R. Harris, D.L. Harmon Jan 1985

Effect Of Sodium Bicarbonate And Sodium Bentonite On Digestion And Rumen Fermentation Characteristics Of Forage Sorghum Silage-Based Diets Fed To Growing Steers (1985), K.A. Jacques, D.E. Axe, T.R. Harris, D.L. Harmon

Kansas Agricultural Experiment Station Research Reports

One percent sodium bicarbonate (NaHCo3) increased intake of a 50% silage - 50% grain diet, but had no effect on intake of a full-feed sorghum silage diet. The addition of concentrate (rolled milo) slightly lowered rumen pH and decreased acid detergent fiber (ADF) and starch digestion. NaHC03 had no effect on digestibility, but 2% bentonite lowered digestibility of NDF and ADF. Neither compound affected rumen fermentation characteristics.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Transfer Of Fatty Acids Across The Swine Uterus And Placenta (1985), A J. Thulin, G L. Allee, D L. Harmon, D A. Schoneweis, Duane L. Davis Jan 1985

Transfer Of Fatty Acids Across The Swine Uterus And Placenta (1985), A J. Thulin, G L. Allee, D L. Harmon, D A. Schoneweis, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

The transfer across the swine uterus and placenta of [1-14C] octanoic acid, [9,10(n)- H] palmitic acid, and [1- 14C] linoleic acid was studied in five gilts and their fetuses during late gestation, following a single bolus injection. Only trace amounts of labeled fatty acids were found in fetal plasma lipid. There were no measureable differences in free fatty acids (FFA) from umbilical artery, and veinous blood. Concentration of FFA in fetal blood was about 40% of the level of uterine values (187, 194, 73, and 82 µEg/1 for uterine artery, uterine vein, umbilical artery, and umbilical vein). In addition, fetal …


Effects Of Ralgro® Implants From Birth To Slaughter On Carcass And Meat Traits Of Young Bulls, D.G. Gray, John A. Unruh, Michael E. Dikeman Jan 1985

Effects Of Ralgro® Implants From Birth To Slaughter On Carcass And Meat Traits Of Young Bulls, D.G. Gray, John A. Unruh, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Implanting young bulls with Ralgro® from birth to slaughter maintained performance similar to nonimplanted bulls, increased quality grade and carcass fatness, delayed carcass masculinity development, decreased hide weight and thickness, and improved some meat palatability traits. Our results indicate that implanting young bulls with Ralgro® from birth to slaughter improves the traits cited most often by beef packers as reasons for discriminating against young bulls for meat production.


Effect Of Sex Status And Breed-Type On Performance Of Highly Stressed Calves, F.K. Brazle, Frank Blecha, Jack G. Riley, J.B. Mclaren Jan 1985

Effect Of Sex Status And Breed-Type On Performance Of Highly Stressed Calves, F.K. Brazle, Frank Blecha, Jack G. Riley, J.B. Mclaren

Kansas Agricultural Experiment Station Research Reports

Bull and steer calves of mixed breed type were shipped from Newport, Tennessee to Manhattan, Kansas. Bull calves were castrated on arrival at Manhattan. Calves were classified into four breed-types as follows: (1) black, polled, medium-frame, number one muscling; (2) white-faced, feather-necked, medium-frame, number one muscling; (3) black or red with white face, medium frame, number one muscling; and (4) large-frame, mixed-color calves. The calves were in transit for 24 hours. Calves purchased and transported as steers outgained those purchased as bulls and castrated upon feedlot arrival by 26 lbs during the receiving phase and by 13 lbs on pasture. …


Effect Of Vitamin Supplementation Of Receiving Diets On The Performance Of Stressed Beef Calves, B. Lee, R. Stuart, K. Perryman, K. Ridenour Jan 1985

Effect Of Vitamin Supplementation Of Receiving Diets On The Performance Of Stressed Beef Calves, B. Lee, R. Stuart, K. Perryman, K. Ridenour

Kansas Agricultural Experiment Station Research Reports

Ration formulation for stressed beef calves needs careful consideration, since low feed intakes, rumen dysfunction, and various other health and management problems may influence nutrient intakes and requirements. Supplementation with Vitamin E and B-complex vitamins in starting and receiving diets appears to improve animal performance and health.


Whole-Plant Forage, Grain, Or Nonheading Sorghum Silages For Growing Cattle, R. Smith, K. Bolsen, H. Ilg, J. Hoover, J. Dickerson Jan 1985

Whole-Plant Forage, Grain, Or Nonheading Sorghum Silages For Growing Cattle, R. Smith, K. Bolsen, H. Ilg, J. Hoover, J. Dickerson

Kansas Agricultural Experiment Station Research Reports

Three sorghum hybrid types were used to make six silages in the fall of 1983. Eight silage rations were compared using 160 steer calves in an 84-day growing trial. Using forage sorghum silage as a base (100), grain sorghum silage had a feeding value of 133, and nonheading sorghum silage 89, when evaluated for comparative rates and efficiencies of gain. Silages from concrete stave silos produced faster and more efficient steer gains than silages from Silopress® bags. Rolling the grain sorghum silages at feeding time to break 95% of the grain significantly improved steer performance. The feeding value of corn …


Effect Of Moisture Level And Bale Size On Alfalfa Hay Quality (1985), A. Laytimi, C. Grimes, K.K. Bolsen Jan 1985

Effect Of Moisture Level And Bale Size On Alfalfa Hay Quality (1985), A. Laytimi, C. Grimes, K.K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Third cutting alfalfa was baled in large I-ton rectangular bales and in small conventional bales at three moisture levels, low (10%), medium (16%), and high (22%). During 120 days of storage under a roof, the high-moisture, large bales heated the most, reaching 128 ÌŠ F by 2 days post baling in a first peak and 133 ÌŠF in a second peak by the 11 th day. Moderate heating occurred in the high-moisture, small bales (l08° F) and medium-moisture, large bales(103 ÌŠF). Only the high-moisture, small and large bales had significant loss of dry matter during storage. Also, heating decreased the …


Silage Additive Update: 1985 (1985), K.K. Bolsen, J.D. Hoover Jan 1985

Silage Additive Update: 1985 (1985), K.K. Bolsen, J.D. Hoover

Kansas Agricultural Experiment Station Research Reports

Silage additives are receiving fairly widespread acceptance in the U.S. as management tools that are important for silage-making. Many products, which are added to the crop at the time of harvest or ensiling, are available commercially in Kansas. Some manufacturers/distributors make no claims for their products, primarily because management is such an important factor in making a good quality silage. Others claim their product will improve silage quality. When a claim is made, it is wise to check for evidence that the product has a favorable effect on the silage crop in question. Farm-scale silo trials at Kansas State University …


Relationship Of Herd Average Somatic Cell Count And Spontaneous Recovery From Subclinical Mastitis (1985), James R. Dunham Jan 1985

Relationship Of Herd Average Somatic Cell Count And Spontaneous Recovery From Subclinical Mastitis (1985), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

The rate of spontaneous recovery from subclinical mastitis was evaluated in 56 Kansas. DHI herds participating in the Somatic Cell Count (SCC) program. Herds were classified as low (>300,000) or high (>600,000) based on herd sec average. Comparisons between low and high SCC-herds were made for each cow's ability to recover from a subclinical case of mastitis (>600,000 SCC). Low-SCC herds had a rate of spontaneous recovery that was more than three times greater than that of high-SCC herds. Average SCC of cows with subclinical mastitis was similar in low and high herds J as well as …


Potential Of Interplanted Soybean And Grain Sorghum As A Forage For Dairy Cattle (1985), John E. Shirley, J. Evans Jan 1985

Potential Of Interplanted Soybean And Grain Sorghum As A Forage For Dairy Cattle (1985), John E. Shirley, J. Evans

Kansas Agricultural Experiment Station Research Reports

Interplanted soybean (l00 to 120 lbs/acre) and grain sorghum (15 to 20 lbs/acre) were harvested at 64,88,102, 123, and 130 days postplanting to determine the ratio and chemical composition of vegetative and seed parts for each plant at advancing stages of maturity. Initial vegetative dry matter yield was 6,300 lbs/acre and increased to 15,000 lbs/acre with 63% vegetative at 123 days postplanting. Vegetative portions (stems, leaves, stalks) of the soybean and grain sorghum plants constituted 100% of the dry matter at day 64, then decreased to 52% at day 130, whereas the contribution of the soy pod (plus bean) and …


Rumensin Helps To Reduce The Incidence And Severity Of Legume Bloat In Cattle (1985), Tiruvoor G. Nagaraja, M.P. Katz, L.R. Fina Jan 1985

Rumensin Helps To Reduce The Incidence And Severity Of Legume Bloat In Cattle (1985), Tiruvoor G. Nagaraja, M.P. Katz, L.R. Fina

Kansas Agricultural Experiment Station Research Reports

Monensin at 300 mg and 450 mg per 1000 lbs body weight reduced the severity of alfalfa pasture bloat by 41.2 and 73.1 %, respectively. Lasalocid at the same levels reduced the bloat score by 25.5 and 12.4%. The difference between the two antibiotics appears to be in their ability to inhibit rumen protozoa. Monensin reduced protozoal population in the rumen, whereas lasalocid had no effect. A smaller protozoal population decreases compounds that contribute to frothiness and also increases substances such as plant chloroplasts, which have antifrothing properties.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Reproductive Characteristics Of Kansas Holstein Herds Grouped By Rolling Herd Average (1985), Edward P. Call, Jeffrey S. Stevenson Jan 1985

Reproductive Characteristics Of Kansas Holstein Herds Grouped By Rolling Herd Average (1985), Edward P. Call, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

An analysis of 635 Kansas Holstein herds with 41,426 cows indicated that the negative genetic antagonism between production and reproduction can be overcome with good management practices. As rolling herd average increased, only services per conception increased by 0.2 units. All other reproductive traits favored higher yearly production. Days to first service and cows not yet bred are the main factors responsible for less than ideal reproductive performance in Kansas Holstein herds.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Comparison Of Am-Pm And Dhi Records (1985), James R. Dunham Jan 1985

Comparison Of Am-Pm And Dhi Records (1985), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

A comparison was made of the AM-PM production testing program with the traditional DHI program during 13 test periods of 1984 in the KSU Dairy Teaching and Research Center herd. Although there were slight variations in daily milk weights and percentages of fat and protein in milk, rolling herd averages were nearly identical. Individual 305-2X-M.E. milk and fat records also were compared for 107 cows using both testing programs. Differences between testing programs were minimal) as most records varied by less than 1%. Therefore, it was concluded that the AM-PM program is a very accurate production test.; Dairy Day, 1985, …


Genetic Selection And Breeding Practices Of Kansas Holstein Herds In Relation To Yearly Level Of Production (1985), Edward P. Call Jan 1985

Genetic Selection And Breeding Practices Of Kansas Holstein Herds In Relation To Yearly Level Of Production (1985), Edward P. Call

Kansas Agricultural Experiment Station Research Reports

An analysis of 41,426 cows in 635 Kansas Holstein herds indicated that considerable improvement can be made in genetic gain by more stringent sire selection and greater use of proved bulls. The generation interval in dairy cattle is about 5 yr so a dairy producer has only a limited number of decisions by which to make genetic improvement. Maximum genetic gain is possible by breeding 80 percent of the herd to bulls in the 80+ percentile. The remainder of the herd should be bred to several young sires in a progeny test program to aid in selecting the meritorious sires …


The Impact Of Culling On Production And Profit (1985), Edward P. Call Jan 1985

The Impact Of Culling On Production And Profit (1985), Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Profit or loss in the dairy enterprise is dependent upon yearly production per cow and degree of capitalization. Higher producing cows convert feed into milk more efficiently. Cows of similar body size have similar maintenance requirements, regardless of level of yearly production. The successful dairy enterprise must establish yearly production goals needed to satisfy cash flow requirements and then implement management procedures to obtain maximal yearly milk per cow on the number of cows required to meet the herd's goal.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Early Postpartum Hormonal Therapy Improves Fertility Of Dairy Cows (1985), Jeffrey S. Stevenson, M. Benmrad Jan 1985

Early Postpartum Hormonal Therapy Improves Fertility Of Dairy Cows (1985), Jeffrey S. Stevenson, M. Benmrad

Kansas Agricultural Experiment Station Research Reports

A study of 234 Holstein cows was conducted to determine if hormonal treatments of gonadotropin-releasing hormone (GnRH or Cystorelin®) and(or) prostaglandin F2α (PGF or Lutalyse®) given early after calving would improve subsequent fertility of dairy cows. Treatment of cows having abnormal conditions associated with calving (puerperal problems) reduced interval from calving to conception by 43 to 48 days when GnRH was given once between days 10 and 14 postpartum or when PGF was administered once between 20 and 24 days after calving compared with cows given only saline (controls). The reduction in days open was 27 to 29 days overall …


Effect Of Calf-Starter Protein Solubility On Calf Performance (1985), J.L. Morrill, P.G. Reddy, Keith C. Behnke, James J. Higgins Jan 1985

Effect Of Calf-Starter Protein Solubility On Calf Performance (1985), J.L. Morrill, P.G. Reddy, Keith C. Behnke, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

Three starters containing differently processed protein supplements were fed to Holstein heifer calves, using an early weaning program. One starter contained soybean meal. The other starters contained soybean grits processed through an extrusion cooker to reduce the protein solubility to an intermediate (PDI>50%) or low (PDI<15 %) level. Calf performance was similar on all three starters.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Effect Of Serum From Vitamin E-Supplemented Calves On Infectious Bovine Rhinotracheitis Virus Replication (1985), P.G. Reddy, J.L. Morrill, H.C. Minocha, R.A. Frey Jan 1985

Effect Of Serum From Vitamin E-Supplemented Calves On Infectious Bovine Rhinotracheitis Virus Replication (1985), P.G. Reddy, J.L. Morrill, H.C. Minocha, R.A. Frey

Kansas Agricultural Experiment Station Research Reports

Blood serum from Holstein calves supplemented with vitamin E at levels of 2800 mg orally or 1400 mg by injection at weekly intervals inhibited replication of Infectious Bovine Rhinotracheitis Virus in tissue cultures. Supplementing typical calf diets with vitamin E may increase protection against pathogens, at a time when they are more vulnerable to problems such as respiratory diseases.; Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985;


Factors Affecting Conception Rates In Heifers And Cows Synchronized With Syncro-Mate-B®, J.T. Brink, C.D. Middleton, G.H. Kiracofe Jan 1985

Factors Affecting Conception Rates In Heifers And Cows Synchronized With Syncro-Mate-B®, J.T. Brink, C.D. Middleton, G.H. Kiracofe

Kansas Agricultural Experiment Station Research Reports

In five trials during 1983 and 1984, 238 cows and 54 heifers were synchronized with Syncro-Mate-B® and artificially inseminated 48 hours after implant removal. The conception rate was 42.5% in cows that were cycling and 19.8% in cows that were not cycling before Syncro-Mate-B® treatment. Heifers started on the Syncro-Mate-B® treatment before day 11 of the estrous cycle had a higher conception rate (64.3%) than heifers started after day 11 (38.5%). Conception rates among the trials varied from 19.8 to 64.3%.


Performance Of Young Pigs Fed Sorghum Grain Damaged By Lesser Grain Borer Or Fungal Invasion (1984), J C. Dietz, Keith C. Behnke, C W. Deyoe, G L. Allee Jan 1984

Performance Of Young Pigs Fed Sorghum Grain Damaged By Lesser Grain Borer Or Fungal Invasion (1984), J C. Dietz, Keith C. Behnke, C W. Deyoe, G L. Allee

Kansas Agricultural Experiment Station Research Reports

Nutritional quality and physical conditions were used to evaluate grain sorghum damaged by either the lesser grain borer Rhyzopertha dominica (F.) or by nontoxin-producing fungi. Experimental treatments were: 1) control 04.0% moisture), 2) lesser grain borer (LGB) (14% moisture with initial infestation of 4.5 adults/lb of grain) and 3) fungal (Fungal) (15.5% moisture). Control grain was used to formulate a 17% crude protein diet. The remaining dietary treatments were formulated by replacing the control grain with the two damaged grains on a weight basis. Forty-five female Yorkshire and 12 crossbred male pigs, with an average initial weight of 22 lb …


Effects Of Low Voltage Electrical Stimulation During Bleeding And Hot Boning On Beef Loin Eye And Top Round Muscles, J.B. Axe, Melvin C. Hunt, Donald H. Kropf, D.G. Gray, Curtis L. Kastner, Michael E. Dikeman Jan 1984

Effects Of Low Voltage Electrical Stimulation During Bleeding And Hot Boning On Beef Loin Eye And Top Round Muscles, J.B. Axe, Melvin C. Hunt, Donald H. Kropf, D.G. Gray, Curtis L. Kastner, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Our study evaluated the effects of low voltage electrical stimulation (ES) during bleeding and hot boning at 1 hr postmortem on loin eye (LE) and top round (TR) muscles. Possibly because of relatively slow initial chilling rate used in our study, hot-boned (HB) muscles, even without ES, were comparable to conventionally chilled and boned counterparts. In fact, coupling ES with HB proved less desirable than HB only.


Effect Of Oxytetracycline Hydrochloride Coating Added To Compudose Implants In Grazing Steers, Lyle W. Lomas Jan 1984

Effect Of Oxytetracycline Hydrochloride Coating Added To Compudose Implants In Grazing Steers, Lyle W. Lomas

Kansas Agricultural Experiment Station Research Reports

Adding an oxytetracycline coating to Compudose implants did not change their effectiveness. Implanting with Compudose significantly increased gain of grazing steers an average of 17% compared to non-implanted controls.


Stocking Rate And Supplementation For Steers Grazing Bluestem Pasture In Early Summer, R. Held, Jack G. Riley, Clenton E. Owensby, E. Smith Jan 1984

Stocking Rate And Supplementation For Steers Grazing Bluestem Pasture In Early Summer, R. Held, Jack G. Riley, Clenton E. Owensby, E. Smith

Kansas Agricultural Experiment Station Research Reports

Native bluestem pastures were grazed from May 16 to July 14, 1983 by steers with an average beginning weight of 545lbs., at stocking rates of 1.82, 1.5, and 1.25 acres per steer. Daily gains for the high and low stocking rates were higher (P<.01) than for the medium stocking rate (2.22, 2.24 vs. 1.92 lb/day). Gains per acre were similar for the low and medium stocking rates, but was higher for the highest stocking rate (73, 75 vs 105 lb/acre). Half of the steers in each stocking rate were self-fed a salt-limiting sorghum grain- Rumensin® mixture at an average intake of 1.84 lb per head per day. Supplementation increased daily gain (P<.01) over non-supplemented (2.39 vs. 1.86 lb/day). Gain per acre was increased 22 lbs by supplementation. Herbage remaining following grazing decline with increased stocking rate. No regrowth occurred following livestock removal in mid July. Warm-season perennial grass composition and basal cover have not changed differentially in relation to stocking rate during the 3-year study period.


Effect Of Ralgro® Implantation Periods On Masculinity And Carcass Traits Of Young Bulls And Steers., D.G. Gray, L.R. Corah, John A. Unruh, Michael E. Dikeman Jan 1984

Effect Of Ralgro® Implantation Periods On Masculinity And Carcass Traits Of Young Bulls And Steers., D.G. Gray, L.R. Corah, John A. Unruh, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Repeated Ralgro® implantation of young bulls from birth to slaughter resulted in gains and carcass characteristics traits intermediate between non-implanted bulls and steers, and meat palatability traits similar to steers. On the other hand, implanting bulls near birth reduced postweaning gains and both live and carcass masculinity. There is little advantages to implanting bulls from weaning to slaughter without initial implantation at birth.