Receiving cattle. Dry matter intake of stressed calves; first 28 days Weeklb/hd/d% of BW 15.51.15 28.91.84 311.82.46 414.83.07 1-410.32.13 Receiving issues.

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Presentation transcript:

Receiving cattle

Dry matter intake of stressed calves; first 28 days Weeklb/hd/d% of BW Receiving issues

Sick vs Healthy Steers (Texas A&M Ranch-to-Rail ) TraitSickHealthy Head5071,394 Death loss4.0%0.6% ADG, kg Feed cost of gain, $/cwt$ Receiving issues McNeil et al., 1998

Animal Health and Daily Gain

Freshly weaned calves: 2/3 sale barn $ 1/3 ranch fresh ItemFeedlotPasture Number Treatments Resp, n (%)311 (53) 133 (23) Pinkeye, n Foot rot78 Death loss, n (%)5 (.9)1 (.2) Daily gain from pay wt. to 28 or 42 days similar Receiving calves, use pasture?

WCGF in receiving diets DMI, lb/d ADG, lb/d F:G # dead 0010 # treated 7568 Diets were 45% alfalfa hay, and either 45% DRC with supp. or 52% WCGF with supp.; ~80 steers/trt McCoy et al., 1996 Nebraska Beef Report DRCDRC/EPWCGFWCGF/EP

WCGF in receiving diets DMI, lb/d ADG, lb/d F:G # dead 0100 # treated Diets were 45% alfalfa hay, and either 45% DRC with supp. or 52% WCGF with supp.; ~100 steers/trt McCoy et al., 1995 Nebraska Beef Report DRCDRC/EPWCGFWCGF/EP

Nutrient ranges for receiving calves NutrientLevel suggested DM 75-85% CP 14-15% UIP concerns! NEm Mcal/cwt NEg Mcal/cwt Ca.8% P.4% K 1.2% Vitamins/trace mineral fortified Rumensin Coccidostats??

Alfalfa Straw (wheat, oat) Ammoniated? Grass Cobs Cottonseed hulls BYPRODUCTS? Silages (corn, alfalfa) Hays (grass, alfalfa) Particle size? Roughage Sources

Sindt et al., 1988 Roughage level Grain:HMCDRGS Roughage: DMI ADG F:G Starch I Starch dig Grain sources different for DMI, F:G, & Starch dig. Linear roughage effect for DMI, F:G, & Starch dig. Quadratic roughage effect for DMI & Starch dig.

Sindt et al., 1988 Roughage level Grain:HMCDRGS Roughage: DMI ADG F:G Starch I Starch dig Grain sources different for DMI, F:G, & Starch dig. Linear roughage effect for DMI, F:G, & Starch dig. Quadratic roughage effect for DMI & Starch dig.

Roughage Level Source:Alfalfa and CS hulls in SF milo diets Level DMI (linear) ADG F:G (linear) Bartle et al., 1994

Roughage Level Stock et al., 1990 Grain:DRCDRW Roughage: DMI ADG F:G Whole diet Conc. only Liver abscess, n 2/507/506/505/50

Roughage level ADG

Roughage level F:G

Alfalfa Hay Level F:G 0%3.75%7.5% AH  WCGF (P < 0.09) Linear AH within 35% WCGF (P = 0.06) Linear AH within 0% WCGF (P = 0.29) WCGF and roughage level

Effects of Roughage Level in WDGS Diets TreatmentsP-Value CONTROLLOWHIGHLevel (%DM) DMI 22.3 a 24.6 b 25.6 c <0.01 ADG 4.33 a 4.62 b 4.77 c <0.01 G:F 5.13 a 5.32 b 5.35 b 0.03 P/L, $ 0.00 a ab b 0.02 Benton et al., 2007 Nebraska Beef Rep.

Effects of Roughage Source in WDGS Diets TreatmentsP-Value AlfalfaCorn SilageCorn StalksSource DMI ADG G:F P/L, $ Benton et al., 2007 Nebraska Beef Rep.

Effects of Roughages in WDGS Diets Treatments Low Corn StalksHigh Alfalfa High Corn Silage High Corn Stalks Level (%DM) DMI ADG G:F P/L, $ Benton et al., 2007 Nebraska Beef Rep.