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Thompson, M. M., C. S. Schauer, V. L. Anderson, B. R. Ilse, J. C. Galbreath, and R. J. Maddock. 2009. Effect of weaning and production management strategies on calf growth and carcass traits. 2008 NDSU Beef Cattle and Range Res. Rep. Pp 28-33. Acknowledgements The authors would like to thank POET Nutrition Inc., Sioux Falls, SD, for their donation of the dried distillers grains with solubles used in this study and David Pearson, Don Stecher, Donald Drolc, Dale Burr, Tim Schroeder and Tyler Ingebretson for their assistance in conducting this trial. *Partial support for this research was provided by the U. S. Department of Agriculture-Agricultural Research Service Northern Great Plains Research Laboratory, Mandan, ND. Specific Cooperative Agreement No. 58-5445-7-315. Disclaimer: Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture. Growth and Feedlot Performance of Steer Calves Born From Beef Cows Supplemented with Linseed Meal During Late Gestation B.R. Ilse 1 , V.L. Anderson 1 , J.D. Kirsch 2 , D.S. Buchanan 2 , and K.A. Vonnahme 2 1 NDSU Carrington Research Extension Center 2 NDSU Department of Animal Sciences Abstract This study examined the effects of supplementing beef cows with phytoestrogen rich linseed meal (LSM) during late gestation on steer calf growth performance and carcass characteristics. Multiparous cows (n = 72) were allotted randomly to one of 12 pens, with six pens supplemented with pelleted LSM and six pens fed a control sunflower meal (SFM) pellet. Diets were formulated to be isocaloric and isonitrogenous. Treatment supplements were included in a totally-mixed ration each day for the last 60 d of gestation. Steer calves (n = 41) were followed from birth to finishing. Birth weight, actual weaning weight, and ADG and carcass characteristics were recorded. Steer birth and weaning weight were not different between treatments (P > 0.05; 96.9 vs. 95.6 ± 2.50 lb.; 561.7 vs. 574.8 ± 9.13 lb., for LSM vs. SFM, respectively). Final live weight was significantly different due to cow gestational supplementation (P = 0.04; 1206.2 vs. 1286.3 ± 21.31 lbs., for LSM vs. SFM, respectively) Steer ADG overall was not different due to treatment (P > 0.05; 2.82 vs. 2.98 ± 0.18 lbs., for LSM vs. SFM, respectively). Carcass characteristic parameters were not different due to treatment. Supplementation of LSM during late gestation does not appear to negatively impact growth rate in calves. Key words: phytoestrogen, linseed meal, cattle Introduction North Dakota is the national leader in flax production (USDA, NASS 2008). Linseed meal (LSM) is a byproduct of flax where the oil has been removed and is commonly used in livestock diets. Recent research has hypothesized that the maternal diet during gestation can have an effect on the lifetime productivity of the offspring. Flaxseed and LSM contain high levels of the plant phytoestrogens. Fetal exposure to phytoestrogen during gestation from that maternal diet may affect the offspring’s development and lifetime productivity. Page 36 2009 NDSU Beef Feedlot Research Report
We hypothesized that 10 percent LSM supplementation of the maternal diet during late gestation would influence calf weight, lifetime gain performance and carcass characteristics. Materials and Methods Animals and Diets This study was approved by the North Dakota State University Institutional Animal Care and Use Committee. At approximately 215 d of gestation, the Carrington Research Extension Center’s multiparous, Red Angus x Simmental cows (n = 72) were randomly assigned to one of two treatments: 1) 10 percent LSM pelleted supplement or 2) a control supplement, sunflower meal (SFM). Pelleted supplements were offered (5 lbs. per hd/d) in a totally-mixed ration (Table 1) until parturition. Cows were assigned to treatments using cow weight as a blocking criterion. Additionally calf birth weight and previous calf birth weight were equalized between treatments as much as possible. Animals were allotted to 1 of 12 pens, with six pens supplemented with LSM and six pens fed the SFM pellet. Cow-calf pair: Calf born from LSM-supplemented cow during the last 60 d of gestation. Table 1. Gestational cow diet last 60 days until parturtion a . Item Ingredient LSM SFM ----------% DM---------- LSM Pellet 9.7 - SFM Pellet - 9.7 Light Barley 27.6 27.6 Straw 32.8 32.8 Corn Silage 29.9 29.9 a Cow ration formulated by recommened requirements (NRC, 2000). Page 37 2009 NDSU Beef Feedlot Research Report
Page 1: Carrington Research Extension Cente
Page 4 and 5: Contact Information If you have que
Page 6 and 7: Table of Contents Feedlot Schools A
Page 8 and 9: 6. Grain processing, mixing rations
Page 10 and 11: Table 1. Supplements with and witho
Page 12 and 13: Table 3. Performance of feeder catt
Page 14 and 15: uminal gas cap H2S concentration an
Page 16 and 17: Table 3. Influence of thiamin and s
Page 18 and 19: Table 1. Rations for steers fed inc
Page 20 and 21: Table 3. Carcass traits of cattle f
Page 22 and 23: Table 1. Formulated dietary composi
Page 24 and 25: Table 2. Performance and carcass ch
Page 26 and 27: Effect of Glycerol Level in Feedlot
Page 28 and 29: Receiving Trial Fall 2008 One hundr
Page 30 and 31: Table 3. Heifer body weight average
Page 32 and 33: Impact of Weaning Date on Calf Grow
Page 34 and 35: a 24-hour chill, qualified universi
Page 36 and 37: By design, weaning dates influenced
Page 40 and 41: Diets were formulated to provide re
Page 42 and 43: Marbling number approached signific
Page 44 and 45: Table 1. Finishing ration with 20%
Page 46 and 47: Table 3. Carcass performance of cal
Page 48 and 49: The number of cattle consigned was
Page 50 and 51: The highest combined index score pe
Page 52 and 53: Table 1 Forage Crop Production 2006
Page 54 and 55: Off-quality commodities such as sun
Page 56 and 57: positive aspects of an enterprise a
Page 58 and 59: NDSU BBQ Boot Camps 2009 Celebratin
Page 60: NDSU is an equal opportunity instit

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