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1987

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Articles 1 - 30 of 87

Full-Text Articles in Animal Sciences

Effect Of Production On Reproduction (1987), Edward P. Call Jan 1987

Effect Of Production On Reproduction (1987), Edward P. Call

Kansas Agricultural Experiment Station Research Reports

The genetic antagonsim that exists between production and reproduction is overcome by sound management practices. Kansas Holstein herds were ranked by quartile and analyzed by comparing various reproductive traits. Higher producing herds suffered less reproductive loss based upon the factors considered. The most significant differences concerned the average days dry, average days open on cows not yet serviced, percent of cows open more than 120 days since fresh, and average age at first calving. An adequate record system will identify potential reproductive problems, and a sound Preventive Herd Health Program (PHHP) will minimize actual losses from disease and cows not …

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Characteristics Of Frankfurters From Preblended Pork (1987), Curtis L. Kastner, Y I. Choi, Donald H. Kropf Jan 1987

Characteristics Of Frankfurters From Preblended Pork (1987), Curtis L. Kastner, Y I. Choi, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Five pork carcasses were used to determine the effects of hot boning and various combinations of salt (0, 1.5, or 3.0%) and a phosphate mixture (0 or 0.5%) on functional, processing, and storage characteristics of preblended pork (preblends). Although hot-boned (HB) preblends had superior functional properties compared to conventionally boned (CB) preblends, HB and CB frankfurters had similar characteristics. More (P(.05) myosin and actin (proteins that cause lean and fat particles to bind together) were extracted from HB than CB preblends. Addition of salt (1.5 or 3.0%) or phosphate (0.5%) generally increased myosin and actin extraction in both HB and …

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Influence Of Rumen Bypass Fat Fed In A Range Supplement On The Performance Of Cows And Calves Grazing Bluestem Range, L. Corah, B. Cochran, D. Harmon, T. Goehring Jan 1987

Influence Of Rumen Bypass Fat Fed In A Range Supplement On The Performance Of Cows And Calves Grazing Bluestem Range, L. Corah, B. Cochran, D. Harmon, T. Goehring

Kansas Agricultural Experiment Station Research Reports

Adding rumen bypass fat to a range supplement reproductive characteristics, cow weight and condition performance during a 43-day postpartum feeding period.

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The Value Of Drip Versus Spray Cooling At Two Flow Rates To Reduce Heat Stress Of Finishing Swine (1987), David A. Nichols, R C. Thaler, James P. Murphy, Robert H. Hines, Jim L. Nelssen Jan 1987

The Value Of Drip Versus Spray Cooling At Two Flow Rates To Reduce Heat Stress Of Finishing Swine (1987), David A. Nichols, R C. Thaler, James P. Murphy, Robert H. Hines, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

One hundred fifty pigs were used to evaluate the effectiveness of either spray cooling or drip sprinkling to reduce heat stress in finishing swine. In addition, water flow rates of .2 gal/pig/hr and .4 gal/pig/hr were compared. All wetting treatments significantly (P<.01) improved average daily gain and feed intake (P<.05) compared with non-wetted control. No differences were observed in feed to gain ratio among treatments. Drip sprinkling at the higher flow rate resulted in performance equal to that with intermittent spray cooling at both flow rates.; Swine Day, Manhattan, KS, November 19, 1987

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How Important Is Extra Solids-Not-Fat In Your Milk? (1987), H.A. Roberts Jan 1987

How Important Is Extra Solids-Not-Fat In Your Milk? (1987), H.A. Roberts

Kansas Agricultural Experiment Station Research Reports

Milk with high solids-not-fat is valuable to the consumer for its flavor and nutritional value and to the manufacturer of milk products, especially relating to cheese yield. Solids-not-fat consists of all solids in milk other than fat. Protein is the most important component of milk because of its nutritional value and its functional properties. Other components, such as milk fat and lactose, also contribute to milk quality and impart certain characteristics to milk products but to a lesser degree.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

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Update On Gonadotropin-Releasing Hormone Treatments For Repeat Breeders (1987), Jeffrey S. Stevenson Jan 1987

Update On Gonadotropin-Releasing Hormone Treatments For Repeat Breeders (1987), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

In three of six studies involving over 1,650 cows, treatment of lactating dairy cows with 100 µg GnRH (2 cc Cystorelin®) at the time of third or fourth insemination improved conception rates by 12 percentage points. When all six studies are considered, rates improved by 10 percentage points. These data provide strong evidence for continued use of GnRH at the time of insemination for repeat breeders.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

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Characteristics Of Preblended Pork During Cooler Storage (1987), Curtis L. Kastner, Y I. Choi, Donald H. Kropf Jan 1987

Characteristics Of Preblended Pork During Cooler Storage (1987), Curtis L. Kastner, Y I. Choi, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Five pork carcasses were used to determine the effects of hot boning and various combinations of salt (0, 1.5, or 3.0%) and a phosphate mixture (0 or 0.5%) on bacteria, TBA (measure of fat rancidity), and pH values of preblended pork (preblends). In both HB (hot boned within 2 hr postmortem) and CB (conventionally boned at 24 hr postmortem) preblends, salt increased (P<.05) TBA values (indicates increased rancidity) and decreased (P<.05) growth of psychrotrophic bacteria, whereas phosphate increased (P<.05) pH and decreased TBA values. Salt levels could be reduced from 3.0 to 1.5% in preblends without storage problems, if phosphate (0.5%) was included. Phosphate (mixture pH 7.2) had little influence on microbial growth of preblends during cooler storage.; Swine Day, Manhattan, KS, November 19, 1987

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1987 Agricultural Research, Southeast Kansas Branch Station, L. W. Lomas, K. W. Kelley, J. L. Moyer, D. W. Sweeney Jan 1987

1987 Agricultural Research, Southeast Kansas Branch Station, L. W. Lomas, K. W. Kelley, J. L. Moyer, D. W. Sweeney

Kansas Agricultural Experiment Station Research Reports

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

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Apramycin For The Early-Weaned Pig (1987), Jim L. Nelssen, G L. Allee, R C. Thaler, W H. Turlington Jan 1987

Apramycin For The Early-Weaned Pig (1987), Jim L. Nelssen, G L. Allee, R C. Thaler, W H. Turlington

Kansas Agricultural Experiment Station Research Reports

A total of 108 21-day-old pigs, weighing less than 10 lb, were utilized in two, 28-day trials to compare the effects of feeding high nutrient-density diets with either added apramycin, neomycin, or carbadox on pig performance. In Tria1, pigs fed the diet containing Apralan® gained slightly faster and were more efficient (P<.05) than pigs fed neomycin during the first 14 days postweaning. There were no differences in pig performance in Trials I or II for the entire 28-day period. Two additional 28-day on-farm studies using a total of 427, 21-day old pigs were conducted, feeding a high nutrient-density diet medicated with either apramycin or neomycin plus terramycin. In both on-farm trials, pigs fed apramycin gained faster (P<.05) than pigs fed neomycin plus terramycin for the initial 14 days post weaning. In the second on-farm trial, feed intake was higher (P<.09) during the first 14 days for pigs fed apramycin. Additionally, pigs fed diets medicated with apramycin were slightly heavier (1. 7 and 1.5 additional pounds for the first and second on-farm trials, respectively) at 28 days post weaning compared to pigs fed neomycin plus terramycin. These results indicate that apramycin will improve the performance of early-weaned pigs fed high nutrient-density diets compared to other feed medications.; Swine Day, Manhattan, KS, November 19, 1987

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A Comparison Of Raw Soybeans And Soybean Oil As Energy Sources For Finishing Pigs (1987), Robert D. Goodband, Robert H. Hines, R C. Thaler Jan 1987

A Comparison Of Raw Soybeans And Soybean Oil As Energy Sources For Finishing Pigs (1987), Robert D. Goodband, Robert H. Hines, R C. Thaler

Kansas Agricultural Experiment Station Research Reports

Two hundred and seventy pigs averaging 125 lbs were utilized in two growth trials to determine the effects of raw soybeans or soybean oil on finishing pig performance. In each trial, raw soybeans or soybean oil were substituted for milo to provide 2 or 3% added fat. Pigs fed these diets were compared to pigs fed a milo-soybean meal diet (control). In Experiment 1, raw soybeans or soybean oil were added in place of milo in a 15% crude protein, .7% lysine diet. Increasing levels of raw soybeans resulted in greater trypsin inhibitor content compared to the control or soybean …

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The Effects Of Sprout-Damaged Milo On Finishing Pig Performance (1987), Robert D. Goodband, W H. Turlington, Robert H. Hines, G L. Allee Jan 1987

The Effects Of Sprout-Damaged Milo On Finishing Pig Performance (1987), Robert D. Goodband, W H. Turlington, Robert H. Hines, G L. Allee

Kansas Agricultural Experiment Station Research Reports

One hundred and sixty-five, crossbred, growing-finishing pigs were utilized in two growth trials to determine the effects of sprout-damaged milo on pig performance. Sprout-damaged milo was officially graded as having 39% sprout damage and 10% broken kernels. In addition, the grain was badly weathered and discolored. In Trial 1, sprout-damaged milo was substituted for normal milo at levels of 0, 50, and 100% of the grain portion in the diet. Increasing levels of sprout-damaged milo had no effect (P>.20) on average daily gain (ADG) or average daily feed intake (ADFI) of growing pigs (91 to 145 lbs). However, pigs …

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Effects Of Milk Products (Casein And Lactose) On Nutrient Digestibility In Weaned Pigs Fed A High Fat Dry Diet (1987), W H. Turlington, G L. Allee, Jim L. Nelssen Jan 1987

Effects Of Milk Products (Casein And Lactose) On Nutrient Digestibility In Weaned Pigs Fed A High Fat Dry Diet (1987), W H. Turlington, G L. Allee, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two trials using a total of 48 pigs were conducted to compare protein (soybean meal and casein) and carbohydrate (dextrose and lactose) sources. In trial 1, digestion studies were conducted to determine apparent digestible energy content of the four treatments and apparent nutrient digestibility coefficients. In trial 2, pigs were sacrificed to determine ileal and total tract (apparent) nutrient digestibility coefficients. Results suggest that milk products are important to improving energy and nutrient digestibility in the young pig. The younger the pig or the sooner after weaning, the greater the benefit from their addition. The data also suggest that milk …

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Increasing Litter Size In Swine Herds (1987), Duane L. Davis, Jeffrey S. Stevenson, J Ernest Minton Jan 1987

Increasing Litter Size In Swine Herds (1987), Duane L. Davis, Jeffrey S. Stevenson, J Ernest Minton

Kansas Agricultural Experiment Station Research Reports

Management and biological factors combine to limit litter size in swine herds. With present technology, improving litter size depends upon increasing the number born in the first litter and prolonging sow longevity. Methods for improving size of the first litter rely on increasing the number of eggs ovulated and include flushing (increased feed for at least 10 days before breeding), selecting breeds with high ovulation rates, and delaying breeding until after the pubertal or first estrus. The first two methods are the most cost effective under farm conditions. Because litter size peaks at the fourth or fifth litter, it is …

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Effect Of Display Lighting On Fresh Pork Longissimus Packaged In Oxygen-Permeable And Oxygen-Barrier Films (1987), S Hung, Melvin C. Hunt, Donald H. Kropf Jan 1987

Effect Of Display Lighting On Fresh Pork Longissimus Packaged In Oxygen-Permeable And Oxygen-Barrier Films (1987), S Hung, Melvin C. Hunt, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Longissimus samples from seven pork loins were used to determine display color stability when packaged in oxygen-permeable (polyviny lchloride, PVC) film and when vacuum packaged. Color scores were different at all times when evaluation was done under display lighting, with poorest color under Cool White and most desirable color under NAFA or Grolux Wide Spectrum. Since differences were minor or non-existent when evaluation was under a common light, we conclude that a different color rendition caused the differences noted and no photochemical effect occurred.; Swine Day, Manhattan, KS, November 19, 1987

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Effects Of Grain Sorghum Hybrid On Finishing Pig Performance (1987), G Goldy, Robert H. Hines, Robert D. Goodband Jan 1987

Effects Of Grain Sorghum Hybrid On Finishing Pig Performance (1987), G Goldy, Robert H. Hines, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to compare the feeding value of homozygous and heterozygous yellow endosperm grain sorghum and corn for finishing pigs. Homozygous yellow endosperm grain sorghum had no advantage in feeding value over heterozgous yellow endosperm hybrids (P>.05). Finishing hogs fed grain sorghum hybrids did not differ (P>.05) in average daily gain, feed intake, or feed efficiency compared to those fed a corn diet.; Swine Day, Manhattan, KS, November 19, 1987

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Estrous Expression Of Sows After Altered Suckling And Boar Exposure (1987), E A. Newton, Jeffrey S. Stevenson, Duane L. Davis Jan 1987

Estrous Expression Of Sows After Altered Suckling And Boar Exposure (1987), E A. Newton, Jeffrey S. Stevenson, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

In two different experiments, we studied the influence of: 1) separating litters from their dams (altered suckling) during the last 8 days of lactation, which included a change in housing and social interaction with other sows; 2) providing boar exposure (1 hr/d); and 3) parity on the ability of sows to come into heat during lactation and after weaning. Our studies indicated that: 1) 6 hr of altered suckling and 1 hr of boar exposure may shorten the interval to heat for sows that express estrus during lactation, but 3 hr of altered suckling and 1 h of boar exposure …

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Effects Of Preweaning And Postweaning Implants On Suckling, Growing, And Finishing Steer Performance - A Three Trial Summary, D.D. Simms, T.B. Goehring, R.W. Lee, Robert T. Brandt Jr., S.B. Laudert, Gerry L. Kuhl Jan 1987

Effects Of Preweaning And Postweaning Implants On Suckling, Growing, And Finishing Steer Performance - A Three Trial Summary, D.D. Simms, T.B. Goehring, R.W. Lee, Robert T. Brandt Jr., S.B. Laudert, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

Over 500 crossbred steers were used in three trials to compare lifetime implant strategies and to study the effects of implanting during the suckling period on performance in the growing and finishing periods. Contrary to previous research, implanting in the suckling period did not increase suckling gain. Implanting in the growing period increased (P<.05) average daily gain, and the implant response in the growing period was not influenced by suckling implant treatment. Steers implanted twice during the finishing period had similar finishing gains regardless of prior implant treatment. Steers implanted only once during the finishing phase gained less (P<.05) than those implanted twice, and while their gains were higher than those of control steers, the difference was small (P>.05). Implanting steers in the finishing phase tended to improve feed conversion but again the difference was not statistically significant. All implant treatments increased (P<.05) lifetime average daily gains and total gain, and there was no difference among implant combinations. Implant treatments increased lifetime gains by 30 to 54 lbs. Because implanting in the suckling period did not reduce cattle performance during the growing and finishing periods, there appears to be no basis for discounting the price of previously implanted cattle. Additionally, this study emphasizes the importance of reimplanting cattle during long finishing periods

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Detection Of Elastin, Collagen, And Cartilage Particles In Ground Beef By Enzyme Digestion And Sensory Analysis, G. Whipple, J.B. Axe, S. Goll, Curtis L. Kastner Jan 1987

Detection Of Elastin, Collagen, And Cartilage Particles In Ground Beef By Enzyme Digestion And Sensory Analysis, G. Whipple, J.B. Axe, S. Goll, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

An enzyme digestion technique was developed using a proteolytic enzyme concentrate to quantitate connective tissue particles in ground beef samples, which had been formulated to contain various amounts of connective tissue. Replicate samples were also evaluated by a taste panel to quantify detectable connective tissue particles. Results for the laboratory enzyme technique and the taste panel were highly correlated. Therefore, the enzyme digestion technique can be used to estimate total connective tissue in ground beef and those particles that are detected upon chewing.

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Effect Of Terramycin® And Bovatec® In Free-Choice Mineral Mixtures On Gains Of Heifers Grazing Native Grass, F. Brazle, Gerry L. Kuhl, D. Harmon, S. Laudert Jan 1987

Effect Of Terramycin® And Bovatec® In Free-Choice Mineral Mixtures On Gains Of Heifers Grazing Native Grass, F. Brazle, Gerry L. Kuhl, D. Harmon, S. Laudert

Kansas Agricultural Experiment Station Research Reports

Supplementing heifers in an intensive-early grazing program with Terramycin ® or Bovatec ® in free-choice, mineral-soybean meal mixtures resulted in Comparable cattle performance. Both feed additive mixtures increased heifer gains about .3 lb per day compared to controls supplemented with a simple mineral mixture.

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Concentrations Of Progesterone And Conception Rates In Holstein Heifers After Hcg Administration During The First 3 Weeks After Estrus (1987), R.E. Stewart, M.O. Mee, Jeffrey S. Stevenson Jan 1987

Concentrations Of Progesterone And Conception Rates In Holstein Heifers After Hcg Administration During The First 3 Weeks After Estrus (1987), R.E. Stewart, M.O. Mee, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

We conducted two experiments to determine the effects of administering human chorionic gonadotropin (hCG) on day 4 or on days 15, 16, and 17 after estrus on conception rates and progesterone secretion by the corpus luteum in Holstein heifers. In the first experiment, 60 heifers received hCG or saline on day 4 after estrus and AI. Conception rates were similar between groups. Concentrations of progesterone were increased in treated pregnant and nonpregnant heifers 7 and 14 days after treatment compared with pregnant and nonpregnant controls. In the second experiment, 62 heifers received hCG or saline on days 15, 16, and …

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Glucose, Starch, And Dextrin Utilization In The Small Intestine Of Steers (1987), K.K. Kreikmeier, D.L. Harmon, T.B. Avery, Robert T. Brandt Jr. Jan 1987

Glucose, Starch, And Dextrin Utilization In The Small Intestine Of Steers (1987), K.K. Kreikmeier, D.L. Harmon, T.B. Avery, Robert T. Brandt Jr.

Kansas Agricultural Experiment Station Research Reports

Holstein steers (775 lbs) were surgically fitted with abomasal and ileal cannulae, portal and mesenteric venous catheters, and an elevated carotid artery. These steers were used to study starch digestion in the small intestine. Glucose, corn starch, and corn dextrin were infused into the abomasum at various levels and ileal digesta samples were collected. Disappearance of carbohydrate (CHO) in the small intestine was determined using Cr:EDTA as an indigestible marker. Blood samples were collected from the portal vein and carotid artery during carbohydrate infusion. Blood flow was determined, and net glucose absorption across the small intestine was calculated. Glucose infusions …

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Early Lactation Somatic Cell Count Should Be Low (1987), James R. Dunham Jan 1987

Early Lactation Somatic Cell Count Should Be Low (1987), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

Cows and heifers in milk for fewer than 50 days, as shown on the DHIA Somatic Cell Count report, should have a lower average Somatic Cell Count than cows in milk for more than 300 days, if the dry cow mastitis treatment and management programs are effective. The DHIA Somatic Cell Count (SCC) average for a dairy herd is a good evaluation of a mastitis control program. Since leucocytes migrate to the mammary system during periods of subclinical mastitis, the SCC average indicates the amount of subclinical mastitis in a herd. A realistic goal for a herd average SCC is …

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The Effects Of Added Niacin During Lactation On Sow And Litter Performance (1987), Robert D. Goodband, Jim L. Nelssen Jan 1987

The Effects Of Added Niacin During Lactation On Sow And Litter Performance (1987), Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

An on-farm field study utilizing 231 sows was conducted to determine the effects of added niacin during a 21-day lactation on sow and litter performance. At farrowing, sows were assigned to one of two dietary treatments that provided either 200 or 1000 mg niacin/day. All Iitters were equalized within dietary treatment by 24 hours following farrowing. All sows had a similar number of pigs born alive, pigs equalized per litter, and average pig and litter birth weights. Feeding sows a diet providing 1000 mg additional niacin did not significantly affect the number of pigs weaned, pig survival, or average pig …

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Assessing Swine Enterprise Efficiency With Computerized Records (1987), D E. Orr Jr Jan 1987

Assessing Swine Enterprise Efficiency With Computerized Records (1987), D E. Orr Jr

Kansas Agricultural Experiment Station Research Reports

Successful swine producers must be adaptable, utilize new technology, and know their herd production levels and costs if they want to alter those production factors that have an economic impact. A summary of the effect of various production factors on swine profitability is presented, using actual herd data in composite form. These data illustrate the production and financial impact that today's technology will have on future swine production units.; Swine Day, Manhattan, KS, November 19, 1987

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Effects Of Trenbolone Acetate And Zeranol Implants On Performance, Carcass, And Meat Traits Of Young Bulls And Steers, R.D. Johnson, Michael E. Dikeman Jan 1987

Effects Of Trenbolone Acetate And Zeranol Implants On Performance, Carcass, And Meat Traits Of Young Bulls And Steers, R.D. Johnson, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Implanting young bulls and steers with trenbolone acetate and zeranol (Ralgro ®) resulted in increased slaughter weights and carcasses that tended to have more marbling than those of control bulls. Furthermore, steaks from both implanted bulls and implanted steers tended to have less detectable connective tissue. Control bulls had larger scrotal circumferences and heavier testicle weights than implanted bulls. Other secondary sex characteristics were not affected, but in these bulls slaughtered at an average age of 13.6 months, sexual development was minimal. Implanting steers with trenbolone acetate and zeranol resulted in performance and carcass and meat quality slightly superior to …

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Compudose® Vs Ralgro®/Synovex-S® Or Synovex-S®/Synovex-S® Reimplant Programs For Finishing Yearling Steers, S.B. Laudert, R.W. Lee Jan 1987

Compudose® Vs Ralgro®/Synovex-S® Or Synovex-S®/Synovex-S® Reimplant Programs For Finishing Yearling Steers, S.B. Laudert, R.W. Lee

Kansas Agricultural Experiment Station Research Reports

Three field trials were conducted with finishing yearling steers to compare the performance of cattle receiving Compudose® or Ralgro®/Synovex-S® and Synovex-S®/Synovex-S® reimplant combinations. No differences were found between Compudose and the reimplant programs in cattle daily gain, feed efficiency, or cost of gain. Compudose retention was 97.5% in the 1317 head implanted. Synovex-S implant site abscess rate ranged from 5.7 to 15.4%.

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Evaluating Serving Capacity Of Yearling Beef Bulls - A Field Trial, G. Boyd, L. Corah Jan 1987

Evaluating Serving Capacity Of Yearling Beef Bulls - A Field Trial, G. Boyd, L. Corah

Kansas Agricultural Experiment Station Research Reports

Results from two trials showed that serving capacity (SC) can be successfully evaluated in yearling beef bulls under field conditions and is influenced by sire line (P<.01). Also, providing sexual experience to low SC yearling bulls can improve SC and should be a standard part of the test. Scrotal circumference and breeding soundness examination scores, both traditional measures of bull fertility, were unrelated to SC.

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Effects Of Pneumo-Guard H® And Vitamin E On Gain And Health Of Stockers Purchased As Steers And Bulls, F. Brazle Jan 1987

Effects Of Pneumo-Guard H® And Vitamin E On Gain And Health Of Stockers Purchased As Steers And Bulls, F. Brazle

Kansas Agricultural Experiment Station Research Reports

Pneumo-Guard H® and injectable Vitamin E did not improve cattle gain or reduce treatments required per animal during a 29-day receiving trial. Stockers purchased as steers gained faster (P<.001) and required fewer (P<.001) treatments per animal than bulls castrated on arrival.

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Efficacy Of Depo-Mga® In Feedlot Heifers, Jack G. Riley, Ronald V. Pope, L. O'Neill Jan 1987

Efficacy Of Depo-Mga® In Feedlot Heifers, Jack G. Riley, Ronald V. Pope, L. O'Neill

Kansas Agricultural Experiment Station Research Reports

Three levels of melengestrol acetate (30, 60, and 90 mg) injected subcutaneously as a liquid (DEPO-MGA ®) in the ear of heifers yielded high performance results comparable to feeding 0.5 mg of MGA per head daily. Heifers fed 0.5 mg MGA daily gained 6% faster and were 11% more efficient than heifers not receiving MGA. This study will be pooled with trials from 13 other locations in the U.S. to determine if further development and FDA clearance of DEPO-MGA ® will be pursued by the Upjohn Company.

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Comparative Feeding Value Of Grain Sorghum And Corn In Beef Cattle Diets, G. Goldy, K. Bolsen, Jack G. Riley Jan 1987

Comparative Feeding Value Of Grain Sorghum And Corn In Beef Cattle Diets, G. Goldy, K. Bolsen, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Homozygous yellow endosperm grain sorghum had no advantage in feeding value over heterozygous yellow endosperm hybrids (P>.05). A heterozygous yellow endosperm hybrid, Funk's 550, had larger kernels (P<.001) and when dry rolled, produced more fine particles (P<.01). This may explain its trend toward improved feed efficiency, higher DM digestibility, and greater in vitro VFA production compared with the other dry processed grain sorghum hybrids tested. Our results do not support the traditional 12 to 16% price discount for grain sorghum relative to corn.

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