Effects of Sodium Diacetrate on Corn Silage Chemical Characteristics, Preservation and Feedlot Performance of Growing Beef Steers

Whole-plant corn forage ensiled a t 65% moisture and stored in concrete stave silos for 200 days was fed in high-silage diets to growing beef steers. Approximately 84 tons of dry matter were stored in each of two silos. One silo contained forage which was untreated, while the other contained forage treated with sodium diacetate a t 1 lb. per ton of wet forage. Differences in feedlot performance of growing steers or in various chemical characteristics between untreated and sodium diacetate-treated corn silage were small and not significant (P\u3e.05). Both silages had a desirable pH (3.8) and contained over 10% lactic acid in the dry matter, indicating formation of high quality silage. Recovery of silage dry matter was 85.6% for untreated silage and 86.8% for sodium diacetate-treated silage

Silage Management - The Key to Quality Corn Silage

The purpose of this decision is to review the process of making silage and re-emphasize those management decisions which if practiced will lead to making quality silage. The use of silage additives continues to be an item of consideration in today\u27s silage management program. Some of the additives under investigation at the South Dakota Agricultural Experiment Station will be discussed here at the South Dakota Agricultural Experiment Station will be discussed here at least where results are currently available. Research from other experiment stations will also be presented

Preliminary Studies with Lambs on the Utilization of Corn Silage Treated with a Biological Additive

The object of this experiment was to study the value of an experimental biological additive as an enhancer of the chemical composition and feeding value of corn silage. Growing lambs were used to measure the effect of treatment on digestibility and nitrogen retention

Effect of Antibiotics in Adaptation of Growing Beef Calves to the Feedlot

Four medication schemes for adapting stressed feeder calves t o the feedlot were evaluated in a 110-day trial. A total of 160 Hereford, Angus and Hereford x Angus steers (544 lb.) were fed a high-corn silage diet supplemented with the following medications: (1) nonmedicated control, (2) chlortetracyclinesulfamethazine (350 mg/steer of each compound for 28 days, (3) oxytetracycline (2 g/steer) for 10 days, then 1 g/steer for 4 days) and (4) oxytetracycline (2 g/steer for 14 days). Average daily gain, dry matter consumption and feed conversion were similar (P\u3e.05) for calves in all treatments. None of the steers required additional medication during the trial

Whole Shelled Corn with and Without Sodium Bicarbonate for Finishing Beef Steers

A total of 160 steers were fed a whole corn-no roughage diet without a buffer or with sodium bicarbonate at a level of .87% of the dry diet . The finishing period of 112 days followed the feeding of a high corn silage diet. Overall feed intake. weight gains and feed conversion were similar (P\u3e.05) for steers supplemented with sodium bicarbonate as for those that did not receive the buffer. Small period differences in performance that were observed between treatments were not significant (P\u3e.05). Carcass characteristics were similar for the control and sodium bicarbonate treatments

Drought-Damaged Corn Silage for Growing Beef Calves

One hundred thirty-six steer calves averaging 440 lb. were used in a 56-day trial to study the value of supplementing drought-damaged corn silage with protein and energy. The silage contained only about 8 bushels of grain per acre and was harvested in mid-August at 30% dry matter. It was stored in a 71-ton stack, covered with a plastic cover and sealed with earth around the bottom. The stack was opened with a plastic cover and sealed with earth around the bottom. The nitrogen (dry basis) were 11.7 and 0.24 at ensiling. The four treatments (34 steers each) were 1 or 2 lb. of supplement (32% protein) per head daily each with 2 levels of corn grain. The supplements supplied 350 mg. each of chlortetracycline and sulfamethazine and 30,000 I.U. vitamin A per steer daily

Niacin Supplementation of Growing and Finishing Lambs

A growing-finishing trial of 123 days was conducted using forty feeder lambs. The lambs were fed a diet consisting of rolled high-moisture corn, alfalfa brome haylage and a supplement fortified with minerals and vitamin A. Lambs fed a supplement containing 100 ppm of niacin added to the diet gained essentially the same rate and consumed similar amounts of total dry feed as lambs not receiving the vitamin. Feed requirements were slightly higher for the lambs fed the niacin supplement. These results suggest that diets containing corn and alfalfa brome haylage are likely to contain enough niacin to meet the needs of lambs of this weight

Ensiled High-Moisture Corn Inoculated with a Biological Additive for Growing-Finishing Lambs

The effect of biological silage additive, Lactobacillus plantarum, on the feeding value and chemical characteristics of high-moisture corn was determined in a 123-day trial with growing-finishing lambs. Lambs (62 lb. average) fed untreated or inoculated corn performed similarly in terms of body weight gain, feed intake or feed efficiency. The corn treated with the microbial preparation was of higher quality as indicated by the lower pH and higher titratable acidity at feeding compared to the untreated corn

Effect of Cooked Corn in Diets of Growing-Finishing Swine

Little information is known concerning the effects of cooking corn on the growth performance of growing-finishing pigs. Therefore. The objective of the present study was to evaluate the performance of pigs fed cooked or regular corn in free-choice and complete mixed ration feeding systems

Feed Additives in Swine Diets

An experiment was conducted at the Cornbelt Research and Extension Center near Beresford, South Dakota, to determine the effectiveness of Mecadox and other feed additives fed for a 5-week period, to study the effect of withdrawal of feed additives at this time on future growth performance and to study the effect of the antibiotic tylosin when fed during the finishing period