Feedlot Nutrition for Holsteins
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2 Feedlot Nutrition for Holsteins Tara L. Felix, PhD Beef Extension Specialist University Park, PA
3 Why Dairy Beef? Supply and demand: Dairy steers contribute 15 to 20 percent of the fed beef market in the U.S. Wardynski, 2015; Progressive Dairymen
4 Traditionally.
5 Veal consumption lbs per capita,
6 The good Easy temperament Uniformity of genetics o Predictable growth Marbling potential Fewer respiratory issues once in lot Byproduct? o Low price
7 The bad Easy temperament More DOF (300 to 400+) o 9 to 20% greater energy requirement than beef Increased feed intake/water intake o Increased manure output o Wet pens Pattern eaters, greater risks o Liver abscess o Acidosis?
8 The ugly Price swings. Historic feeding regimes
9 Past.
10 How can we get from A to B? A B
11 PA Land values
12 2000 Beef NRC, Net Energy for Gain Processing Method NEg, Mcal/lb Whole 0.68 HMC 0.76 Dry rolled 0.68 Cracked 0.70 Steam flaked 0.73 Corn silage 0.53 Orchardgrass hay, 2 nd cut 0.40
13 Diet scenarios Nutrients in 15% DDGS Diet Feed % Protein Fat NE g, Mcal/lb DDGS Corn Hay % CP supplement Total
14 Cheaper option (-$6/ton) BUT +30 DOF Nutrients in 15% DDGS Diet Feed % Protein Fat NE g, Mcal/lb DDGS Corn Hay % CP suppl Total
15 Cheaper by $33/ton have to handle silage Nutrients in 25% DDGS Diet Feed % DM Protein Fat NE g, Mcal/lb DDGS Corn Silage % CP supplement Total
16 Feeding
17 Project YR 1 Background on calves Single sourced calves from one dairy o All born August 2015 Grown by Cold Spring Farms, LLC o Manchester, PA o Dan and Steve Gross Implanted with Ralgro in Feb 2016 Received at LEC April 21, 2016 o Incoming weight 544 ± 90 lbs
18 Project YR 1- Management At receiving: o o Held on hay over the weekend Gave vaccines and weighed Fed for ad libitum intake o o o Intake ~28 lbs DM (~35 lbs as-fed) per head each day 62 Mcal diet (Average grain intake, 25 lbs as-fed/hd/day) Corn, DDGS, silage, urea, and mineral Weighed every 28 d
19 Project YR 1- Management Implanted with Encore 28 d after feedlot entry Reimplanted with Component TE-S on d 133 Slaughtered after 209 d on feed o Age = 15 months
20 Project YR 1- Performance Summary Initial BW, lbs 545 ±90 Final BW, lbs 1343 ±150 ADG, lbs 3.96 ±0.5 DMI, lbs as % BW 2.93 F:G 6.99
21 Project YR 1- Carcass Characteristics Average Low High HCW Dressing, % Marbling BF Ribeye Area YG Choice, % 88.1
22 Project YR 1- Bottom line economics True test If contracted Nov 2016 prices Pay weight IN, lbs 24,660 24,660 24,660 Price in $ 1.50 $ 1.50 $ 0.85 Pay weight OUT, lbs 57,664 57,664 57,664 Price out $ 0.97 $ 1.11 $ 0.97 Feedlot costs $ 27, $ 27, $ 27, Total Costs $ 64, $ 64, $ 48, Total return $ 55, $ 64, $ 55, Net Return $ (8,297.79) $ 5.83 $ 7, Net Return per hd $ (188.59) $ 0.13 $
23 Use of implants?
24 Cattle Growth Curves
25 Hormones Three categories in vertebrate animals: 1. Peptide hormones (e.g., thyroid releasing hormone (TRH), vasopressin, rbst) 2. Monoamines (e.g., thyroxine, epinepherine) 3. Lipid and phospholipid-derived hormones (e.g., steroid hormones, including testosterone, estrogen, and cortisol)
26 Hormones Approximately 24 FDA approved hormones, based on estrogen, androgens, or progestins Most are implantable hormones, used in beef cattle Melengesterol acetate (MGA) o o Synthetic progestin Prevents estrus behavior o Improves gain and feed efficiency ~5% o No withdrawal period
27 Implants are crucial in Holsteins!
28 Implant Technique
29 Implants are crucial in Holsteins!
30 Implant Technique
31 Examples of implant vs none 25 Percent improvement over nonimplanted cattle mg TBA + 14 mg E2 140 mg TBA + 14 mg E2 100 mg TBA + 14 mg E2 200 mg TBA + 28 mg E2 200 mg progesterone + 20 mg E2 ADG FE
32 Implant response Increase gains by 10-20% Improve feed efficiency by 3-10% Increase final weight at equal days on feed Increased lean and decreased fat at same body weight Improve profit $50-100/head
33 Estrogenic activity per serving Food ng/serving Beef, implanted 3 oz. Beef, non-implanted, 3 oz. 1.3 Potatoes Peas Ice cream Cabbage Wheat germ Soybean oil 1 Preston, R.L Rationale for the safety of implants. pp Oklahoma Agricultural Experiment Station P Thompson et al Phytoestrogen content of foods. Nutr & Cancer. 54:184
34 Daily estrogen production in humans Class Nanograms per day Female, before puberty 54,000 Non-pregnant women 480,000 Pregnant women 20,000,000 Male, before puberty 41,000 Adult male 136,000
35 Another Perspective
36 Project YR 2 Background on calves Single sourced calves from one dairy o All born June -August 2016 Grown by Cold Spring Farms, LLC o Manchester, PA o Dan and Steve Gross Received at LEC April 6, 2016 o Incoming weight 700 ± 75 lbs
37 Project YR 2- Management Split into 2 groups of 20 Group A o Implanted with Component E at feedlot entry o Reimplanted with Component TE-S on d 116 Slaughtered after 178 d on feed o Age = 14 to16 months
38 Project YR 2- Performance Summary Implant No Implant n, animals Initial BW, kg 697 ± ± 77 Final BW, kg 1371 ± ± 79 First Implant, d 0 to 116 ADG, KG 3.94 ± ± 0.48 Second Implant, d 117 to 178 ADG, KG 3.51 ± ± 0.64
39 Project YR 2- Carcass Characteristics Implant No Implant n, animals HCW Dressing percentage, % USDA YG USDA Quality Grade, # Prime 1 1 Choice Select 7 4 Standard 2 0
40 Project YR 2- Bottom line economics Implanted Not Implanted Pay weight IN, lbs 14, , Price in Pay weight OUT, lbs 27,426 24,354 Price out $ 1.04 $ 1.04 Feedlot costs $ 9, $ 9, Total Costs $ 22, $ 22, Total return $ 25, $ 23, Net Return $ 2, $ 1, Net Return per hd $ $ 89.25
41 Visual appraisal of finish Not your average beef steer!
42 Calf 453
43 Not much brisket fill
44 May be modest on some
45 Should have a strong blocky shape
46 May be narrower through the backend
47 Calf 453
48 Keys to success Take this calf Formulate a ration to optimize muscling and growth Use technologies to improve the genetics Here. DO NOT FORGET THE ANIMAL Intakes Visual assessments
49 Penn State Extension is enhancing communications options to ensure more timely, relevant, and customized information is available to you. extension.psu.edu/aboutme It only takes 2 minutes.
50
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