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South Dakota Sheep Research Reports, 2006-07

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Full-Text Articles in Sheep and Goat Science

Effects Of Increasing The Energy Density Of A Lactating Ewe Diet By Replacing Grass Hay With Soybean Hulls And Dried Distillers Grains With Solubles, Aimee Wertz-Lutz, Robert Zelinsky, Jeffrey Held Jan 2007

Effects Of Increasing The Energy Density Of A Lactating Ewe Diet By Replacing Grass Hay With Soybean Hulls And Dried Distillers Grains With Solubles, Aimee Wertz-Lutz, Robert Zelinsky, Jeffrey Held

South Dakota Sheep Research Reports, 2006-07

The objective of this experiment was to determine the effects of increasing the energy density of a lactating ewe diet by replacing grass hay (GH) with soybean hulls (SH) and replacing soybean meal (SBM) with dried distillers grains with solubles (DDGS) on ewe body condition, milk production and nutrient composition, and lamb performance. Sixteen 2-year-old ewes were selected based on a common lambing date. All diets contained 60% roughage and 40% concentrate. Dietary roughage source, however varied from completely GH to completely SH, and SBM was replaced by DDGS. Diets were formulated to contain 13.9% CP and an increasing amount …


Effects Of Increasing The Dietary Energy Density By Replacing Grass Hay With Soybean Hulls And Dried Distillers Grains With Solubles On Nutrient Digestibility And Rumen Fermentation, Aimee Wertz-Lutz, Robert Zelinsky, Jeffrey Held Jan 2007

Effects Of Increasing The Dietary Energy Density By Replacing Grass Hay With Soybean Hulls And Dried Distillers Grains With Solubles On Nutrient Digestibility And Rumen Fermentation, Aimee Wertz-Lutz, Robert Zelinsky, Jeffrey Held

South Dakota Sheep Research Reports, 2006-07

We hypothesize that soybean hulls (SH) and dried distillers grains with solubles (DDGS) can be used in lamb diets to increase dietary energy density compared with a traditional grass hay (GH) and soybean meal (SBM) diet without causing adverse effects on nutrient digestibility and rumen function. To test this hypothesis, four ruminally-cannulated wethers were used in a 4x4 Latin square design to determine the effects of replacing GH with SH and replacing SBM with DDGS on nutrient digestibility and rumen fermentation. All diets were formulated to contain 60% roughage and 40% concentrate on DM basis. Dietary roughage source, however, varied …


Testing Intervention Strategies To Reduce The Prevalence Of Lung Lesions In Lambs, Jay A. Daniel, Jeff E. Held Jan 2006

Testing Intervention Strategies To Reduce The Prevalence Of Lung Lesions In Lambs, Jay A. Daniel, Jeff E. Held

South Dakota Sheep Research Reports, 2006-07

We have previously demonstrated that lung lesions decrease average daily gain in lambs. We have also observed fall born lambs have a lower prevalence of lung lesions than spring born lambs. The different prevalence in lung lesions between spring and fall born lambs suggests that lung lesions can be prevented. Mannheimia (Pasteurella) haemolytica and/or Pasteurella multocida are present in lambs with moderate or severe lung lesions, but not in lambs with normal lung tissue. In serial slaughter studies, we observed lung lesions formed post-weaning. Therefore, we designed two studies to test possible intervention strategies to reduce the prevalence or severity …


The Effect Of Corn Or Soybean Hull Diets Supplemented With Dried Distillers Grain With Solubles (Ddgs) On Finishing Lamb Performance And Carcass Merit, Rob Zelinsky, Jay A. Daniel, Jeff E. Held Jan 2006

The Effect Of Corn Or Soybean Hull Diets Supplemented With Dried Distillers Grain With Solubles (Ddgs) On Finishing Lamb Performance And Carcass Merit, Rob Zelinsky, Jay A. Daniel, Jeff E. Held

South Dakota Sheep Research Reports, 2006-07

Eighty 78.1 ± 1.6 lb white-faced and brockle-faced wether and ewe lambs were used in an experiment to test the effects of soybean hulls and dried distillers grains with solubles (DDGS) on growth, feed efficiency and carcass merit. Lambs were placed on test between 79 to 105 days of age (average 92 days) and fed the experimental diets for 60 days. Each pen consisted of 10 lambs. Diets were formulated to meet or exceed NRC requirements. The diets were corn or soybean hull based and DDGS served as the protein supplement in both diets. No treatment differences were observed in …


Shearing Lambs Improves Growth Performance During Periods With Elevated Thermal Load, Jake J. Herrig, Simone M. Holt, J.A. Daniel Jan 2006

Shearing Lambs Improves Growth Performance During Periods With Elevated Thermal Load, Jake J. Herrig, Simone M. Holt, J.A. Daniel

South Dakota Sheep Research Reports, 2006-07

The purpose of this study was to determine if average daily gain (ADG) is improved in shorn lambs versus non-shorn lambs in the summer months in the upper Midwestern United States. Forty-nine purebred Hampshire and Columbia ram (n = 10 Hampshire and 4 Columbia) and ewe (n = 22 Hampshire and 13 Columbia) lambs were grouped by breed, sex, age (104 ± 1.7 days of age), and initial weight (109 ± 3.5 lbs) into shorn (n=26) and non-shorn (n=23) groups. After shearing (3 June 2004), shorn sheep had approximately 0.1 inches of wool-cover. Lambs were weighed 1, 29, and 57 …