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Animal Sciences

Kansas Agricultural Experiment Station Research Reports

Journal

1988

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Articles 61 - 90 of 90

Full-Text Articles in Life Sciences

Space Requirement Of Finishing Pigs Fed To Heavier Weight (1988), David A. Nichols, Robert H. Hines, Robert D. Goodband, Jim L. Nelssen Jan 1988

Space Requirement Of Finishing Pigs Fed To Heavier Weight (1988), David A. Nichols, Robert H. Hines, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two trials, using a total of 240, crossbred, finishing pigs were conducted to evaluate 7, 9, and 11 ft^2 space allowance per pig from approximately 115 lb to a market weight of 250 lb. Pigs were removed individually each week as they reached the desired weight. Pigs reared in pens with 7 ft^2 had a reduced average daily feed intake and a significantly reduced average daily gain compared to those with 9 and 11 ft^2. Feed/gain was the same for all treatments; however, the pigs with 7 ft^2 required 4 days longer to reach 250 lb. Performance data suggests that …

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Wet Vs. Dry Ad Libitum Feeding Of Growing-Finishing Swine (1988), David A. Nichols, Robert H. Hines Jan 1988

Wet Vs. Dry Ad Libitum Feeding Of Growing-Finishing Swine (1988), David A. Nichols, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Two hundred and twenty-four growing-finishing pigs were used to evaluate wet vs. dry ad libitum feeding utilizing the Pride of the Farm Maxima®feeder. Growth rate, average daily feed intake, and feed/gain were the same for those pigs fed with feeders having water nozzles in the trough (wet) or (Finishing, Wet vs. Dry) without the nozzles in the trough of the feeder (dry).; Swine Day, Manhattan, KS, November 17, 1988

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Replacing Dried Skim Milk With Select Menhaden Fish Meal In A High Nutrient Density Diet (1988), G R. Stoner, Jim L. Nelssen, Robert H. Hines Jan 1988

Replacing Dried Skim Milk With Select Menhaden Fish Meal In A High Nutrient Density Diet (1988), G R. Stoner, Jim L. Nelssen, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

A growth study was conducted to evaluate the possibility of replacing dried skim milk (DSM) with select menhaden fish (SMFM) in a high nutrient density diet. A total of 210, 3wk- old weaned pigs was utilized. Diets were formulated by: 1) replacing 50 or 100% of the DSM with SMFM and maintaining the lactose content of the diet by increasing the dried whey inclusion or 2) by replacing 50 or 100% of the DSM with SMFM and corn. These formulations yielded three diets containing 24% lactose, one diet containing 19% lactose, and one containing 14% lactose. Growth performance was similar …

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Transient Hypersensitivity To Soybean Meal In The Early-Weaned Pig (1988), D F. Li, G Reddy, Frank Blecha, Joe D. Hancock, G Allee, Jim L. Nelssen Jan 1988

Transient Hypersensitivity To Soybean Meal In The Early-Weaned Pig (1988), D F. Li, G Reddy, Frank Blecha, Joe D. Hancock, G Allee, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine if baby pigs develop intestinal hypersensitivity to dietary soy protein. Challenging nursery pigs with soybean meal following oral infusion of soybean meal from day 7 to day 14 of age resulted in villus atrophy and lower average daily gain by 28 days of age. At 56 days of age, there were no differences in weight gains between pigs fed soy protein and pigs fed milk protein. Pigs exposed to soybean meal before weaning had increased anti-soybean protein immnoglobulin titers at 4 wk (7.2 vs 4.0) and at 8 wk (7.6 vs 4.2). Thus, challenging …

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Effect Of Fat Source And Fat Combinations On Starter Pig Performance (1988), R C. Thaler, G L. Allee, Jim L. Nelssen Jan 1988

Effect Of Fat Source And Fat Combinations On Starter Pig Performance (1988), R C. Thaler, G L. Allee, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two 5-wk trials utilizing a total of 324 weanling pigs (21 ± 3 d) were conducted to determine the effects of different fat sources and combinations on starter pig performance. Treatments consisted of a control (CONT) with no added fat and fat additions of either soybean oil (SOY), coconut oil (COCO), choice white grease (CWG), 1/2 SOY: 1/2 COCO (SOCO), or 1/2 CWG: 1/2 COCO (CWCO). Diets were supplemented with 10% fat for the first two wk of the study, and 5% fat for the next three wk. Daily feed intake (ADFI) was decreased for the first 2 wk when …

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Litter Traits For Gilts Fed 4 Or 7.4 Lb Feed During The First Ten Days After Breeding (1988), Duane L. Davis, Z Zhang, Jeffrey S. Stevenson Jan 1988

Litter Traits For Gilts Fed 4 Or 7.4 Lb Feed During The First Ten Days After Breeding (1988), Duane L. Davis, Z Zhang, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

We tested the effects of feeding 4 or 7.4 lb of a complete gestation diet to gilts during days 0 to 2 or 3 to 10 after first detected estrus (day 0) and mating. There was a tendency (P = .11) for the 7.4 lb/day treatment to increase litter size when fed from day 0 to 2 and to decrease (P = .17) litter size when fed from day 3 to 10. Gilts artificially inseminated at puberty farrowed fewer (P<.05) pigs than gilts inseminated at a second or later estrus.; Swine Day, Manhattan, KS, November 17, 1988

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Folic Acid Supplementation For Sow Diets (1988), Jim L. Nelssen Jan 1988

Folic Acid Supplementation For Sow Diets (1988), Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Folic acid is an essential B-vitamin for swine, and green, leafy plants are an -excellent source of this vitamin. Even though pigs cannot synthesize folic acid, bacteria in their lower gut can, making feces another source of folic acid. Research in the late 1940's and early 1950's indicated that folic acid supplementation to pig diets was not necessary. However, in the last 40 years, the number of sows raised in outside lots with access to leafy plants has decreased. Also, improvements in waste removal systems have decreased the sow's access to fecal material. These changes in management systems have removed …

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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 Processing On Physical Characteristics, Handling Properties And Utilization Of Wheat Middlings (1988), C H. Fahrenholz, G L. Allee, D Eustace, Keith C. Behnke Jan 1988

Effect Of Processing On Physical Characteristics, Handling Properties And Utilization Of Wheat Middlings (1988), C H. Fahrenholz, G L. Allee, D Eustace, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Wheat middlings were pelleted and ground through different types of grinders. The resulting products were incorporated into finishing pig diets and a digestion trial was conducted to determine the effect of processing on nutrient utilization. Pelleting and grinding midds prior to use in pelleted finishing diets improved pelleting throughput and efficiency. Results of the digestion study showed there were no detrimental effects on nutrient utilization because of processing. This, along with reduced shipping costs and improved handling characteristics, indicate that pelleting wheat midds at the flour mill would be beneficial to the feed industry and could result in lower feed …

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Effect Of A Probiotic On Prevention Of Salmonellosis In Pigs (1988), K B. Beeman, D E. Erickson, B J. Henning Jan 1988

Effect Of A Probiotic On Prevention Of Salmonellosis In Pigs (1988), K B. Beeman, D E. Erickson, B J. Henning

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine if a commercial probiotic compound could be used to bring about competitive exclusion of Salmonella organisms. The probiotic material was added to the feed of one group of pigs and was not added to the feed of a control group. Both groups of pigs were dosed orally with 10^6 CFU of Salmonella cholerasuis. All pigs were affected; however, the treated group demonstrated less illness than the control group.; Swine Day, Manhattan, KS, November 17, 1988

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An Alternative To Sulfa-Containing Antibiotics For Starter Pigs (1988), R C. Thaler, Jim L. Nelssen Jan 1988

An Alternative To Sulfa-Containing Antibiotics For Starter Pigs (1988), R C. Thaler, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

An on-farm starter trial was conducted to compare the efficacy of a non-sulfa containing antibiotic (Mecadox®) to that of a sulfa-containing antibiotic (ASP-250®). Two hundred and forty pigs weaned at 3 wk of age were placed in a hot-nursery and all fed a high nutrient density diet containing the antibiotic apramycin (Apralan®) for 1 week. For the next 3 wk, pigs received complex diets containing either ASP-250 or Mecadox. Pigs were then moved. to a cold nursery and fed simple diets with the same antibiotic treatment for the final 2 wk. Average daily gain, average daily feed intake, and feed …

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Low Investment Farrowing Facilities (1988), James P. Murphy Jan 1988

Low Investment Farrowing Facilities (1988), James P. Murphy

Kansas Agricultural Experiment Station Research Reports

Low investment farrowing facilities can be divided into three categories, depending on the level of investment. At the lowest investment level, an individual farrowing shelter that has no floor is utilized. The shelter can be as simple as two sheets of plywood nailed together to create an A frame. Sometimes, rounded "quonset" shelters also are utilized. Since the weather protection is somewhat limited, these types of shelters are normally used to farrow only in the spring and fall. This is sometimes called the two-litter system. Farrowing is normally done on pastures. The shelters utilize no supplemental heat and have no …

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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 Depo-Mga On The Prevention Of Pregnancy In Grazing Heifers, L.R. Corah, F.K. Brazle, G.W. Boyd, T. Goehring Jan 1988

Effect Of Depo-Mga On The Prevention Of Pregnancy In Grazing Heifers, L.R. Corah, F.K. Brazle, G.W. Boyd, T. Goehring

Kansas Agricultural Experiment Station Research Reports

Two field trials were conducted to evaluate various dosage levels of Depo-MGA® for preventing pregnancy in grazing heifers. Injecting Depo-formulated MGA subcutaneously in the ear at dosages of 60, 90 or 120 mg effectively prevented pregnancy for up to 135 days. There was no effect on average daily gain.

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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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Effect Of Hay Quality And Breed On The Onset Of Puberty And Subsequent Reproductive Performance In Beef Heifers, R.C. Perry, L.R. Corah, R.C. Cochran, J.R. Brethour Jan 1988

Effect Of Hay Quality And Breed On The Onset Of Puberty And Subsequent Reproductive Performance In Beef Heifers, R.C. Perry, L.R. Corah, R.C. Cochran, J.R. Brethour

Kansas Agricultural Experiment Station Research Reports

The effect of hay quality on the onset of puberty and subsequent reproductive performance was evaluated in 51 3/4 Hereford x 1/4 Angus (HA) heifers and 47 3/4 Hereford x 1/4 Brahman (HB) heifers. Two qualities of alfalfa hay were fed ad libitum. along with an average of 3.1 lbs/hd/day of ground sorghum grain. HB heifers were heavier and carrying more backfat and body condition (P<.05) at the start of the experiment and they maintained their weight advantage through out the experiment. A higher (P<.05) percent of the UB heifers reached puberty by 14 and 15 months of age and became pregnant during a 45 day artificial insemination breeding period. HA heifers reached puberty at a lighter (P<.05) average weight. Heifers fed high quality alfalfa hay were heavier (P<.05) by the start of the breeding season and were carrying more (P<.05) backfat and body condition. A higher percent (P=.08) of the heifers receiving higher quality hay reached puberty by 16 months of age and a higher (P=.10) percent became pregnant during the breeding period. Heifers inseminated at their pubertal estrus had lower (P=.04) first service conception rates than heifers inseminated at their second or later estruses (52% vs. 88%).

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The Influence Of Stage Of Pregnancy On Digestion Characteristics In Beef Cows, A. Beharka, B. Cochran, D. Harmon, T. Avery Jan 1988

The Influence Of Stage Of Pregnancy On Digestion Characteristics In Beef Cows, A. Beharka, B. Cochran, D. Harmon, T. Avery

Kansas Agricultural Experiment Station Research Reports

Feed intake during the final trimester of gestation did not appear to vary significantly until 2 weeks before calving, after which it decreased dramatically. Measurements during two periods in the final trimester suggested that passage rate increased and digestibility decreased, as pregnancy proceeded.

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Comparison Of Feedlot Performance Of Steer Calves Produced By Angus X Hereford And Brahman X Hereford Cows, J.R. Brethour, D. Patterson, K. Olson, L. Corah Jan 1988

Comparison Of Feedlot Performance Of Steer Calves Produced By Angus X Hereford And Brahman X Hereford Cows, J.R. Brethour, D. Patterson, K. Olson, L. Corah

Kansas Agricultural Experiment Station Research Reports

Steer calves that were 75 percent Hereford and either 25 percent Angus (BWF) or Brahman (BRX) were compared in a feedlot study that involved either high-concentrate or high-silage finishing rations. The BRX steers gained significantly faster, but there was no concomitant response in feed efficiency. The ration energy utilization by BRX steers appeared to be less than that of BWF steers. Performance of both breeds was poorer on the high-silage ration than on the high-grain ration, and there was no breed by ration interaction. A greater proportion of BWF calves graded USDA choice, but there was little difference between breeds …

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Influence Of Supplemental Protein Versus Energy Level On Intake, Fill, Passage, Digestibility, And Fermentation Characteristics Of Beef Steers Consuming Dormant Bluestem Range Forage, T. Delcurto, B. Cochran, T. Avery, A. Beharka Jan 1988

Influence Of Supplemental Protein Versus Energy Level On Intake, Fill, Passage, Digestibility, And Fermentation Characteristics Of Beef Steers Consuming Dormant Bluestem Range Forage, T. Delcurto, B. Cochran, T. Avery, A. Beharka

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to evaluate effects of protein versus energy level in milo/soybean meal supplements on intake and utilization of dormant, bluestem forage. Forage dry matter intake and utilization of dormant bluestem forage appears to increase at higher levels of supplemental protein. Increased supplemental energy may be associated with depressed intake and utilization, particularly when supplements are low in protein.

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Performance Of Stocker Heifers And Steers Grazing High Endophyte Fescue And Offered Oxytetracycline In A Mineral Mixture., K. Coffey, F. Brazle Jan 1988

Performance Of Stocker Heifers And Steers Grazing High Endophyte Fescue And Offered Oxytetracycline In A Mineral Mixture., K. Coffey, F. Brazle

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the performance of stocker calves grazing high-endophyte fescue (68 to 70%) and offered oxytetracycline in a free-choice mineral supplement. In Experiment 1, 24 yearling crossbred heifers were utilized in a 112-day grazing study beginning on June 18. Performance of both control calves and those receiving oxytetracycline was extremely poor, making data interpretation difficult. Average oxytetracycline consumption was 327 mg per head, daily. Approximately 8296 of the total grazing time occurred during the daylight hours (6arn - l0pm) for both treatment groups. Heifers offered the medicated mineral mix grazed 20 minutes more than heifers offered …

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Farm, Wholesale, And Retail Beef Price Relationship, Ted C. Schroeder Jan 1988

Farm, Wholesale, And Retail Beef Price Relationship, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Analysis of weekly retail, wholesale, and farm beef price data indicated that a time lag exists between price changes at the various market levels. Farm-level slaughter cattle price changes typically lead wholesale beef price changes by 2 to 3 weeks. Similarly, wholesale beef price changes typically lead price changes at the retail level by 3 to 4 weeks.

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Effects Of Sugar, Internal Cooking Temperature, And Hot-Boning On The Characteristics Of Low Fat, Restructured, Value-Added Beef Roasts, S.J. Goll, Melvin C. Hunt, Donald H. Kropf, Curtis L. Kastner Jan 1988

Effects Of Sugar, Internal Cooking Temperature, And Hot-Boning On The Characteristics Of Low Fat, Restructured, Value-Added Beef Roasts, S.J. Goll, Melvin C. Hunt, Donald H. Kropf, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Low fat, restructured beef roasts were made from muscles that were conventionally or hot-boned. Differing combinations of salt, phosphate, and glucose were added. Then roasts were cooked to 145 ÌŠF or 200 ÌŠF. Roasts from conventionally boned muscle generally had less warmed-over flavor and higher acceptability scores than those from hot-boned muscle. Adding glucose with salt and phosphate helped suppress warmed-over flavor throughout display and did not reduce flavor acceptability or increase cooking loss. Roasts cooked to 200 ÌŠF had lower warmed-over flavor scores and were more acceptable, but were less cohesive and had higher cooking losses than roasts cooked …

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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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Incidence Of Pregnancy In Feedlot Heifers At Slaughter, S.B. Laudert Jan 1988

Incidence Of Pregnancy In Feedlot Heifers At Slaughter, S.B. Laudert

Kansas Agricultural Experiment Station Research Reports

Nearly 83,000 heifers were observed at slaughter during 1986 and 1987 to determine their reproductive status. Slightly less than 4 percent were found to be pregnant. Highest incidences of pregnancy were found during the winter months of November through March. Lowest incidences were found during August, September. and October.

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Evaluation Of Interseeded Grain Sorghum And Soybeans As 8 Silage Crop, S.H.M. Esmail, K. Bolsen, S. Azimi, John E. Shirley Jan 1988

Evaluation Of Interseeded Grain Sorghum And Soybeans As 8 Silage Crop, S.H.M. Esmail, K. Bolsen, S. Azimi, John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Interseeded grain sorghum and soybeans were harvested at late-boot, milk, and late-dough maturity stages of the sorghum (62, 77, and 91 days post-planting, respectively). Maximum dry matter yield occurred at the late-dough stage and interseeded silages had higher crude protein contents than the control, late-dough) grain sorghum silage. All silages underwent normal homolactic fermentations and were well preserved. Cellulose and acid detergent fiber contents were also higher in the mixtures than in the control silage, but fiber values decreased as maturity advanced. Digestibilities of most nutrients were similar in the rations, but when considered with chemical composition and yield data, …

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Evaluating The Availability Of Nutrients For Maintenance And Growth In Ruminants, K. Gross, D. Harmon, T. Avery Jan 1988

Evaluating The Availability Of Nutrients For Maintenance And Growth In Ruminants, K. Gross, D. Harmon, T. Avery

Kansas Agricultural Experiment Station Research Reports

Two experiments were performed with mature wether lambs to evaluate availability of selected nutrients and volatile fatty acids for maintenance and growth. We used a technique in which known amounts of volatile fatty acids were infused into the rumen and casein into the abomasum. Sampling portal blood allowed measurement of nutrients absorbed across the gastrointestinal tract. Approximately 49, 62, and 21% of the infused acetate, propionate, and butyrate, respectively, were absorbed across the gastrointestinal tract.

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Inoculant-Treated Corn Silages For Growing Cattle, K. Bolsen, B. Kireh, A. Laytimi, J. Hoover, H. Ilg Jan 1988

Inoculant-Treated Corn Silages For Growing Cattle, K. Bolsen, B. Kireh, A. Laytimi, J. Hoover, H. Ilg

Kansas Agricultural Experiment Station Research Reports

Whole-plant corn silages were treated with Ecosyl® in one trial and Biomate4ll or Silagest® in a second trial. In both trials, the silages were well preserved and moderately stable in air during the feed-out period. Inoculated silages had slightly lower ensiling temperatures than control silages. Laboratory silo results indicated that all silages fermented extremely fast, but inoculated silages did have slightly lower pH and higher lactic acid values during the first 4 days post-filling. Calves fed inoculated silage rations tended to gain faster and more efficiently than those fed control silages. Gain per ton of crop ensiled also favored the …

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Effect Of Commercial Inoculants On Fermentation Of 1987 Silage Crops, K. Bolsen, A. Laytimi, R. Hart, L. Nuzback, F. Niroomand, L. Leipold, H Ilg Jan 1988

Effect Of Commercial Inoculants On Fermentation Of 1987 Silage Crops, K. Bolsen, A. Laytimi, R. Hart, L. Nuzback, F. Niroomand, L. Leipold, H Ilg

Kansas Agricultural Experiment Station Research Reports

Fourteen commercial silage inoculants were evaluated in 32 trials using nine different crop species harvested in 1987 and ensiled in PVC laboratory silos. Microorganism profiles of the crops showed high numbers of lactic acid bacteria (LAB) in all but one trial. Most inoculants supplied relatively high numbers of LAB per gram of crop--52 of the 66 inoculant samples supplied more than 10 (100,000) viable LAB per gram. The forage crops--wheat, bromegrass, sudangrass, and alfalfa--were highly responsive to the inoculants. When compared to untreated silages, treated silages had lower pH, acetic acid, ethanol, and ammonia-nitrogen values and higher lactic acid content. …

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Relationship Between Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars, J. White, K. Bolsen, B. Kirch Jan 1988

Relationship Between Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars, J. White, K. Bolsen, B. Kirch

Kansas Agricultural Experiment Station Research Reports

Results from two trials evaluating 11 forage sorghums as silage crops indicated that silage quality traits of voluntary intake, digestibility, and crude protein content were linearly associated with the agronomic characteristics of days to half bloom and plant height. Intake was negatively associated with plant height (r = -.49); digestibility was negatively associated with days to half bloom (r = -.39) and plant height (r = -.49); and crude protein was negatively associated with days to half bloom (r = - .51) and plant height (r = -. 71). Within the same cultivar, but between years, voluntary intake varied by …

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Selecting Forage Sorghum Cultivars For Silage, J. White, K. Bolsen, B. Kirch, L. Pfaff Jan 1988

Selecting Forage Sorghum Cultivars For Silage, J. White, K. Bolsen, B. Kirch, L. Pfaff

Kansas Agricultural Experiment Station Research Reports

Eighty forage sorghum cultivars were compared in 1986 for agronomic and silage quality traits. Silage yield ranged from 5.3 to 10.0 tons (t) of dry matter (DM) per acre (mean, 7.4 t); grain yield, from 13 to 113 bushels (bu) per acre (mean, 66 bu). Percent lodging was extremely high, with a mean of 51% and only one cultivar free of lodging. Pre-ensiled DM content ranged from 22.2 to 35.4% (mean, 27.4%) and plant height from 85 to 180 inches (mean, 121 inches). Silage quality results showed that in vitro DM digestibility ranged from 44.6 to 62.1% (mean, 53%); crude …

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