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Kansas Agricultural Experiment Station Research Reports

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Articles 4261 - 4290 of 4901

Full-Text Articles in Life Sciences

Efficacy Of Ectrin® (Fenvalerate) For Sarcoptic Mange Control In Swine (1984), E L. Wooten, A B. Broce, D S. Pollmann Jan 1984

Efficacy Of Ectrin® (Fenvalerate) For Sarcoptic Mange Control In Swine (1984), E L. Wooten, A B. Broce, D S. Pollmann

Kansas Agricultural Experiment Station Research Reports

A trial was conducted to determine the efficacy of fenvalerate (Ectrin®) for control of sarcoptic mange mites in swine. Artificially infested pigs were treated with two sprayings of Ectrin at 0.05% concentration with 1 wk interval between sprayings. One week after the first spraying, mite numbers and clinical signs of mange had decreased in treated animals but remained elevated in infested-nontreated pigs. Four weeks after the first spraying (3 wk after the second spraying), no mites were found in scrapings from the Ectrin-treated pigs and the amount of scratching and rubbing in those pigs decreased compared with the infested- nontreated …

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Comparison Of Feeding Systems For Finishing Swine (1984), J Vargas Vargas, Robert H. Hines Jan 1984

Comparison Of Feeding Systems For Finishing Swine (1984), J Vargas Vargas, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Two feeding trials using 240 finishing pigs were conducted to evaluate meal feeding and ad libitum dry and wet feeding. Growth rate was significantly improved by wet feeding in trial 1. Overall, a 5% improvement in growth rate occurred by wet feeding in both trials when compared with meal-feeding or ad libitum dry feeding. Feed efficiency was similar for pigs fed meals, and ad libitum dry or wet diets.; Swine Day, Manhattan, KS, November 15, 1984

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Lecithin Addition To Starter Pig Diets With And Without Added Fat And Whey (1984), D M. Van Wormer, D S. Pollmann Jan 1984

Lecithin Addition To Starter Pig Diets With And Without Added Fat And Whey (1984), D M. Van Wormer, D S. Pollmann

Kansas Agricultural Experiment Station Research Reports

A total of 316 crossbred weanling pigs were used in two studies to evaluate the effect of the addition of edible-grade, unbleached soy lecithin on growth in starter pig diets with and without added fat and/or dried whey. Addition of fat to a corn-soybean meal diet improved (P<.05) feed efficiency but addition of lecithin did not affect performance. When lecithin and fat were added in combination, average daily gain was less (P<.05) than for diets without added fat. This may be due to a high level of undigestible fat having a limiting effect on intake and consequently decreasing gains. A low level of lecithin (1.5%) in diets without whey gave approximately the same response as a 4% fat diet without whey thus making lecithin a possible fat substitute should, it be economically feasible.; Swine Day, Manhattan, KS, November 15, 1984

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Digestibility Of Fat Sources By Sows (1984), S Christianson, G L. Allee, D S. Pollmann Jan 1984

Digestibility Of Fat Sources By Sows (1984), S Christianson, G L. Allee, D S. Pollmann

Kansas Agricultural Experiment Station Research Reports

Twelve crossbred sows averaging 337 lb were used to determine apparent nutrient digestibility of three fat sources. Fat sources evaluated were soybean oil, a 85% dry-fat product composed of animal and vegetable fat, and a 80% dry- fat product made with casein encapsulated choice white grease. The control diet was a 13.0% crude protein corn-soybean diet with 8% cornstarch. Fat sources were added to the control diet to supply 8% added fat. The 12 sows were used in a crossover design, with three sows per diet in each of two periods. Each period consisted of a 5-day adjustment and a …

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Successful Induction Of Estrus During Lactation For Sows Separated From Their Litters (1984), Jeffrey S. Stevenson, Duane L. Davis Jan 1984

Successful Induction Of Estrus During Lactation For Sows Separated From Their Litters (1984), Jeffrey S. Stevenson, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine the effectiveness of inducing estrus during lactation by temporarily separating the litter from the sow during the last week of lactation. Lactating sows were removed daily from their litters for either 1) 3 hr /day (n=20), 2) 6 hr /day (n=39), or 3) 12 hr /day (n=10) during the last 8 days of lactation and exposed to an intact boar for at least 1 hr during the separation period. Litters were weaned from control sows at either 2 (n=13) or 4 (n=15) weeks for comparison of intervals to estrus following complete weaning or temporary separation. …

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Altrenogest And Fat For Summer Breeding Of First-Litter Sows (1984), Jeffrey S. Stevenson, Duane L. Davis, D S. Pollmann Jan 1984

Altrenogest And Fat For Summer Breeding Of First-Litter Sows (1984), Jeffrey S. Stevenson, Duane L. Davis, D S. Pollmann

Kansas Agricultural Experiment Station Research Reports

Crossbred first-Iitter sows in a commercial swine unit were assigned to serve as controls after summer weanings or were fed altrenogest for 7 days or altrenogest for 7 days plus supplemental fat for 14 days after weaning. While similar proportions of sows came into heat after weaning, sows fed altrenogest returned to estrus about 9 days later than control sows. Incidence of anestrus was similar across sow groups (31%), while most of the sows not detected in heat could be classified by cause after examining serum progesterone concentrations at 3 wk after weaning. Nearly 69 % of the sows not …

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Limiting Amino Acids In Sorghum Grain Protein For Adult Female Swine (1984), A J. Thulin, G L. Allee, D S. Pollman Jan 1984

Limiting Amino Acids In Sorghum Grain Protein For Adult Female Swine (1984), A J. Thulin, G L. Allee, D S. Pollman

Kansas Agricultural Experiment Station Research Reports

Two 4 x 4 Latin square designs were used with 16 gilts at 10 mo of age and weighing 341 lb (gravid) and 301 lb (nongravid) to determine the limiting nitrogenous factors in sorghum grain protein for adult gravid (70th day postcoitum) and nongravid swine. Supplementation of the fortified sorghum grain diet with lysine increased (P<.05) nitrogen retention in both nongravid and gravid gilts. A further addition of threonine also increased (P >.05) nitrogen retention in both nongravid and gravid gilts. However, addition of both lysine and threonine to the sorghum diet failed to result in nitrogen retention equal to that observed for the control diet. Percentage of nitrogen digested was higher (P<.05) for the control diet than for the basal diet or the two diets with lysine and threonine added. Blood urea nitrogen was reduced (P<.05) when lysine was added to the basal diet with an additional reduction when threonine also was added to the diet. However, the control diet caused higher blood urea values when compared to both supplemented diets. These results suggest that another amino acid may be limiting in the sorghum grain diet supplemented with both lysine and threonine. These data and other published data demonstrate that lysine and threonine are the first and second limiting amino acids in sorghum grain for adult gravid and nongravid swine.; Swine Day, Manhattan, KS, November 15, 1984

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Evaluation Of Raw And Processed Full-Fat Soybeans For High-Producing Dairy Cows (1984), G.M. Ward, J.L. Morrill, M.B. Morrill, A.D. Dayton Jan 1984

Evaluation Of Raw And Processed Full-Fat Soybeans For High-Producing Dairy Cows (1984), G.M. Ward, J.L. Morrill, M.B. Morrill, A.D. Dayton

Kansas Agricultural Experiment Station Research Reports

Rations containing either soybean meal, raw full-fat soybeans, or processed soybeans were compared using 36 high-producing dairy cows in early lactation. The processed soybeans were heated in a California Pellet Milt Jet-Sploder for sufficient time (about 1 min) to produce beans with exit temperature of 340°F. The raw soybeans and heated soybeans were rolled before being"¢ mixed into the concentrate mixture. Alfalfa hay and concentrate were consumed ad libitum in a ratio of 35 % hay and 65 % concentrate. Milk production and percent protein in milk were significantly greater when cows were fed soybean meal or Jet-Sploded beans than …

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Bioavailability Of Alfalfa Calcium (1984), L.H. Harbers, G.M. Ward, A.D. Dayton Jan 1984

Bioavailability Of Alfalfa Calcium (1984), L.H. Harbers, G.M. Ward, A.D. Dayton

Kansas Agricultural Experiment Station Research Reports

The availability of oxalate and non-oxalate calcium in alfalfa was determined using a chick assay. Oxalate-bound calcium was found to contribute only 16% as much influence as nonoxalate calcium. The nonoxalate calcium in alfalfa was 18% more available than calcium carbonate (precipitated chalk).; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Immunoglobulin Concentrations In Serum And Nasal Secretions Of Calves At The Onset Of Pneumonia (1984), L.B. Corbeil, B. Watt, R.R. Corbeil, T.G. Betzen Jan 1984

Immunoglobulin Concentrations In Serum And Nasal Secretions Of Calves At The Onset Of Pneumonia (1984), L.B. Corbeil, B. Watt, R.R. Corbeil, T.G. Betzen

Kansas Agricultural Experiment Station Research Reports

Immunoglobulin (Ig) concentrations in serurn and in nasal secretions were correlated with pneumonia and diarrhea during the first 12 wk of life of dairy calves. The peak onset of pneumonia occurred between 2 and 4 wk of age when the calves' serum Ig G1, Ig G2 and IgA concentrations were lowest. As IgG2 concentrations increased, fewer calves developed pneumonia. Peak onset of pneumonia was also correlated with the lowest IgG and IgA concentrations in the calves' nasal secretions. Diarrhea often preceded pneumonia.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Gonadotropin-Releasing Hormone And Conception Of Holstein Cows (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call Jan 1984

Gonadotropin-Releasing Hormone And Conception Of Holstein Cows (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

To study the effects of gonadotropin-releasing hormone (GnRH) and timing of artificial insemination (Al) on fertility, 328 dairy cows were divided into four groups. Inseminations at first, second, or third service were done soon after detected estrus (0 hr) or 12 h later. One-half of the cows in each of the preceding groups received GnRH (100µg) or saline within 30 sec after AI. Conception at first service was not improved by GnRH. But conception rates at repeat services were improved by 21% when cows received GnRH after AI. Time of AI (0 vs 12 hr) had no effect on conception. …

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Prostaglandin F2Α For Lactating Dairy Cows With Silent Estrus (1984), S.S. Plunkett, Jeffrey S. Stevenson, Edward P. Call Jan 1984

Prostaglandin F2Α For Lactating Dairy Cows With Silent Estrus (1984), S.S. Plunkett, Jeffrey S. Stevenson, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted in 17 dairy herds in NE Kansas to determine the effectiveness of prostaglandin F2α(PGF) for reducing intervals to conception for cows with silent or unobserved estrus. Cows that failed to be seen in heat so they could be inseminated after calving (Exp. 1) and cows that did not return to estrus after AI and were not pregnant when presented to veterinarian for pregnancy examination (Exp. 2) were assigned alternately to be given PGF or to receive no treatment after detection of a palpable corpus luteum. Cows were inseminated at 72 and 96 hr after PGF treatment …

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Effect Of Supplemental Vitamin E On The Performance, Metabolic Profiles, And Immune Responses Of Dairy Calves (1984), P.G. Reddy, J.L. Morrill, H.C. Minocha, M.B. Morrill Jan 1984

Effect Of Supplemental Vitamin E On The Performance, Metabolic Profiles, And Immune Responses Of Dairy Calves (1984), P.G. Reddy, J.L. Morrill, H.C. Minocha, M.B. Morrill

Kansas Agricultural Experiment Station Research Reports

Forty-six Holstein heifer calves were used from birth to 3 rno to study the effect of supplemental vitamin E at 1400 or 2800 mg dl-a.-tocopherol acetate given orally at weekly intervals or 1400 mg dl-a-tocopherol by intramuscular injection. Weekly starter consumption was 10 to 27 % more (P=.12) and weekly weight gains were 9 to 25% more (P=.13) in supplemented calves. Creatine phosphokinase activity was negatively correlated with serurn tocopherol concentrations, indicating a subclinical muscular dystrophy in unsupplemented calves. Lymphocyte stimulation indices were positively correlated with serum tocopherol concentration. Calves given high level of oral supplementation had higher IgM antibody …

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Effect Of Processing Temperature On Utilization Of Whole Soybeans By Young Calves (1984), I.E.O. Abdelgadir, J.L. Morrill, J.A. Stutts, B. Morrill Jan 1984

Effect Of Processing Temperature On Utilization Of Whole Soybeans By Young Calves (1984), I.E.O. Abdelgadir, J.L. Morrill, J.A. Stutts, B. Morrill

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine the optimum conditions for processing whole soybeans for young calves. In the first trial, laboratory procedures and a nitrogen balance study were used. This information was used to design the second trial in which raw and processed soybeans were evaluated in an 8-wk growth trial using 96 Holstein day-old calves. Starters contained soybean meal (SBM), SBM with added fat, raw soybeans, or soybeans processed at 280, 340, or 375°F in a California Pellet Mill Jet-Sploder. Calves fed the starters containing soybeans processed at 340 consumed more feed, gained faster, had lower fecal scores (less …

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Evaluation Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, M.K. Schmidt, A.J. Cullen, M.B. Morrill Jan 1984

Evaluation Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, M.K. Schmidt, A.J. Cullen, M.B. Morrill

Kansas Agricultural Experiment Station Research Reports

One experiment was conducted to compare an early weaning program, using a prestarter , when calves were weaned at 2 or 3 wk of age with programs using conventional feeds and weaning at 3 or 6 wk of age. Daily gains to 8 wk of age were 1.19 and 1.03 pound for calves fed a commercial starter and weaned at 6 and 3 weeks of age, respectively; and were 1.1 and .97 for calves on the early weaning program and weaned at 3 and 2 wk of age, respectively. Another experiment was conducted to test one variation of the early …

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Factors Affecting Estrus And Fertility Of Holstein Heifers After Prostaglandin F2Α (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call Jan 1984

Factors Affecting Estrus And Fertility Of Holstein Heifers After Prostaglandin F2Α (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Stage of the estrous cycle, time of insemination, and season of the year were examined for their influence on estrus and fertility of 223 Holstein heifers after prostaglandin F2α(PGF). Heifers given PGF early in the estrous cycle (days 5 to 8 where estrus = day 0) had shorter intervals (by 11 hr) to heat than heifers given PGF later in the cycle (days 14 to 16). Heats also were more closely synchronized for heifers treated early in the cycle. Season of the year had no effects on the interval to estrus or on proportion of heifers observed in heat. Conception …

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Effect Of Niacin Supplementation On Milk Production And Ketosis Of Dairy Cattle (1984), G. Dufva, E. Bartley, A. Dayton, D. Riddell Jan 1984

Effect Of Niacin Supplementation On Milk Production And Ketosis Of Dairy Cattle (1984), G. Dufva, E. Bartley, A. Dayton, D. Riddell

Kansas Agricultural Experiment Station Research Reports

Two lactation trials were undertaken to evaluate the effect of a niacin supplement on milk production and 'the physiological symptoms of ketosis. Blood ketone and non-esterified fatty acid levels were lower and blood glucose concentrations higher in niacin-supplemented cows. These trends were exhibited regardless of whether supplementation began 2 wk prepartum or immediately after calving. A 6 g daily dose was found to be of equal or higher benefit than a 12 g supplement. Cows gi ven niacin consistently produced more milk than controls, though the difference was small.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Relationship Between Production And Reproduction In 5,480 Holstein Herds Enrolled In The Midstates Processing Center (1984), Edward P. Call, Jeffrey S. Stevenson Jan 1984

Relationship Between Production And Reproduction In 5,480 Holstein Herds Enrolled In The Midstates Processing Center (1984), Edward P. Call, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Reproductive parameters were evaluated in 5,480 Holstein herds involving 335,673 cows to determine the reported negative genetic effect of production on reproduction. While higher producing herds had a slight decline in days to first bred, this effect was offset by a similar increase in services per conception. The greatest effect was seen in the percent of cows open and the average days open. It was concluded that managers of higher producing herds are more aware of the need to get cows bred back after calving and implement the necessary practices to minimize the percent of cows not yet serviced and …

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Development Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, A.D. Dayton, A.J. Zmolek, M.A. Vitcenda Jan 1984

Development Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, A.D. Dayton, A.J. Zmolek, M.A. Vitcenda

Kansas Agricultural Experiment Station Research Reports

After preliminary experiments, four trials were conducted to develop and test a new feeding program for calves. The program involves the use of a special feed (a prestarter) to encourage calves to eat dry feed and to provide high quality nutrients during the time of initial rumen development. Using this plan, calves were weaned at 2 weeks of age with good results.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Effects Of Various Feeding, Breeding And Management Practices On Milk Production (1984), James R. Dunham Jan 1984

Effects Of Various Feeding, Breeding And Management Practices On Milk Production (1984), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

The March 1984 DHI summary of Kansas Holstein herds shows some interesting correlations of various feeding, breeding, and management factors to production (Table 1). The Rolling Herd Average (RBA) is an excellent evaluation of the efficiency of dairy herds since RHA and income-over-feed-cost are closely related. Although income-over-feed-cost is not profit, it provides the income for paying the other costs of producing milk. The goal of every dairy producer should be to increase the RHA in order to improve profitability.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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1983 Report Of Agricultural Research, Southeast Kansas Branch Station, K. W. Kelley, J. L. Moyer, L. W. Lomas Jan 1983

1983 Report Of Agricultural Research, Southeast Kansas Branch Station, K. W. Kelley, J. L. Moyer, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Through annual research reports the Southeast Kansas Branch Experiment Station attempts to keep the area's consumers and producers of agricultural products informed on the Station's research accomplishments. In serving the area, we conduct research at fields located at Parsons, site of headquarters; at Mound Valley, the original location of the Branch Station; and at Columbus, which has been in the Kansas State University research system for 60 years. This report for 1982 covers three areas of research emphasis: Crops, Forages, and Beef Cattle. We sincerely hope that it will be useful to area producers and consumers, industry cooperators, Extension personnel …

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Commercial Culture And Inoculant Additives For Alfalfa And Whole-Plant Corn Silages, M. Hinds, K. Bolsen, H. Ilg, George A. Milliken Jan 1983

Commercial Culture And Inoculant Additives For Alfalfa And Whole-Plant Corn Silages, M. Hinds, K. Bolsen, H. Ilg, George A. Milliken

Kansas Agricultural Experiment Station Research Reports

Experimental 5 gallon plastic silos were used in three trials to evaluate these alfalfa and corn silages: 1) control (no additive); 2) CULBAC® culture; 3) McNess ® inoculant; 4) SILA-GREEN® inoculant; and 5) Biomax SI ® inoculant. Two silos per treatment were opened on days 1, 2, 4, 7, 14, and 56 post-ensiling in trial 1 (alfalfa) and trial 2 (corn) and the changes that occurred during the ensiling process were compared by using nonlinear models. Only 56-day silages were evaluated in trial 3 (alfalfa). All silages were of acceptable quality. The four culture/inoculant additives had no consistent effects on …

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Cause And Effect Of Calving Difficulty In First Calf Heifers On Subsequent Reproductive Performance And Weaning Weights Of Progeny, R.P. Bolze, R.J. Pruitt, L.R. Corah Jan 1983

Cause And Effect Of Calving Difficulty In First Calf Heifers On Subsequent Reproductive Performance And Weaning Weights Of Progeny, R.P. Bolze, R.J. Pruitt, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

Eight years of records for 1495 2-year old beef heifer calvings from two Kansas ranches were analyzed to determine the cause and effect"¢ of calving difficulty on subsequent reproductive performance and weaning weights of progeny. The study involved two herds of Simmental cattle (spring and fall calving) and one herd of fall calving Angus cattle. Heifers were classified as either requiring or not requiring assistance with their first calf. Herds were analyzed separately. Percentages of heifers requiring assistance for the Angus, spring calving Simmental and fall calving Simmental herds were 36%, 57% and 38%, respectively. In all herds, calves from …

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A Summary Of Recent Kansas State University Research On The Metabolism Of Supplemental Niacin In The Rumen Of Cattle, E.E. Bartley, D.O. Riddell, M.A. Arambel, S.M. Dennis Jan 1983

A Summary Of Recent Kansas State University Research On The Metabolism Of Supplemental Niacin In The Rumen Of Cattle, E.E. Bartley, D.O. Riddell, M.A. Arambel, S.M. Dennis

Kansas Agricultural Experiment Station Research Reports

Benefits have been shown under certain conditions when niacin is added to the diets of beef cattle, dairy cattle or sheep. We attempted to find out what effects added niacin has on the rumen fermentation, and conversely, how the rumen metabolizes niacin.

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Elpwa And Molasses Additives For High Moisture Sorghum Grain, J. Heidker, H. Ilg, K. Bolsen, Keith C. Behnke Jan 1983

Elpwa And Molasses Additives For High Moisture Sorghum Grain, J. Heidker, H. Ilg, K. Bolsen, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

ELPWA (a lactobacillus inoculant with antioxidant), molasses, or both combined were evaluated as additives to high moisture sorghum grain ensiled in concrete stave silos. ELPWA treated grain had the greatest temperature increase during ensiling. Final lactobacillus counts were higher in the ELPWA + molasses treated grain, however, the initial rate of increase was greatest in ELPWA or molasses treated grains. Control and molasses treated grains had the fastest decline in pH and the lowest final pH. Aerobic stability of the ensiled grain depended on the strata of the silo sampled and the temperature to which the grain was exposed but …

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Eating And Cooking Loss Characteristics Of Electrically Stimulated And Hot Boned Bull Inside Round Muscle Chilled At Different Rates, S.D. Shivas, Curtis L. Kastner, Michael E. Dikeman, Melvin C. Hunt, Donald H. Kropf Jan 1983

Eating And Cooking Loss Characteristics Of Electrically Stimulated And Hot Boned Bull Inside Round Muscle Chilled At Different Rates, S.D. Shivas, Curtis L. Kastner, Michael E. Dikeman, Melvin C. Hunt, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

We found steaks cut from inside rounds (chilled fast or slow) of electrically stimulated and hot boned bull carcasses, to be similar to conventionally processed steaks in taste panel, shear force and cooking loss characteristics.

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Comparison Of Two Testosterone Treatments For Heat Detector Cows, M.D. Heekin, G.H. Kiracofe Jan 1983

Comparison Of Two Testosterone Treatments For Heat Detector Cows, M.D. Heekin, G.H. Kiracofe

Kansas Agricultural Experiment Station Research Reports

Testosterone propionate and testosterone enanthate treated cows were equally effective as heat detectors but the testosterone enanthate treatment required at least 9 fewer injections and less time from first injection unit the cow was active as a detector.

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Stocking Rate, Supplementation And Implants For Steers Grazing Bluestem Pasture In Early Summer, R. Held, E.F. Smith, Jack G. Riley, Clenton E. Owensby Jan 1983

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

Kansas Agricultural Experiment Station Research Reports

Native bluestem pastures were grazed from May 10 to July 15, 1982 by steers averaging 599 lbs, at stocking rates 1.82, 1.5, 1.2 acres per steer. Daily gains were similar for all rates, but gain per acre increased with increased stocking rate. Half of the steers were self-fed a salt-limiting sorghum grain-Rumensin® mixture, at about 1.8lb per steer per day. Supplementation increased daily gain (P<.05) but actual differences were small (2.08 vs. 1.91 lb per day). Gain per acre was increased 7 lbs by supplementation. Herbage yields at mid-July were least on the heavily stocked pastures, but by October regrowth on all pasture was equal. Stocking rate did not affect botanical composition. There were no significant gain differences for steers implanted with either Compudose®, Ralgro® or Synovex®, even though 24 percent of the Compudose implants were lost by mid-summer.

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Inoculant And Urea-Molasses Additives For Forage Sorghum Silage, M. Hinds, J. Brethour, K. Bolsen Jan 1983

Inoculant And Urea-Molasses Additives For Forage Sorghum Silage, M. Hinds, J. Brethour, K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Inoculant (1177 in one trial) and non-protein nitrogen (LSA-100 in two trials) silage additives were evaluated with whole-plant forage sorghum silage. Steers fed LSA-100 silage gained faster than steers fed control silage supplemented with soybean meal (4.8% in trial 1; 12% in trial 2). Feed conversion was improved 11% in trial 1 and was similar to the control silage in trial 2. Silage inoculated with 1177 supported rates and efficiencies of gain similar to the control silage. Of the nitrogen added from LSA-100, 90.9% in trial 1 and 86.2% in trial 2 was recovered from the concrete stave silos. Dry …

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Additive-Treated Corn Silage, Harvestore Cornlage, And Sodium Bicarbonate Supplement For Yearling Steers, S. Soderlund, K. Bolsen, H. Ilg, J. Hoover Jan 1983

Additive-Treated Corn Silage, Harvestore Cornlage, And Sodium Bicarbonate Supplement For Yearling Steers, S. Soderlund, K. Bolsen, H. Ilg, J. Hoover

Kansas Agricultural Experiment Station Research Reports

Steers fed Silo Guard II® treated corn silage gained 3.5% faster and were 8.3% more efficient than those fed the control silage. Cornlage (54% dry matter corn silage in an oxygen-limiting structure) produced numerically slower and less efficient gains than either treated or untreated silage, but differences in silages were not statistically significant. Steers fed sodium bicarbonate throughout the trial consumed 8.5% more silage, gained 14% faster (P<.05), and were 3% more efficient than those not fed bicarbonate; performance of steer fed bicarbonate for the first half of the trial was intermediate. Steers fed cornlage had a higher rumen fluid acetate:propionate ratio (P<.05) than those fed the control or Silo Guard II silages but there were no significant differences due to bicarbonate in rumen fluid volatile fatty acids. Silage DM recoveries and aerobic stabilities were similar for the control and Silo Guard II silages. Cornlage was less stable in air than the other two silages.

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