Comparison of pen vs. pasture-fed goats

1,229 views
918 views

Published on

This presentation gives the results of the 2nd year of a study in which the performance and carcass traits of pen vs. pasture-fed goats.

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,229
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
36
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Comparison of pen vs. pasture-fed goats

  1. 1. Using grain to improve goat carcass quality and value: Year 2 Susan Schoenian and Jeff Semler - University of Maryland Extension
  2. 2. We love barley! Thank you for your support of the 2012 and 2013 pen vs. pasture studies.
  3. 3. Pen-fed (n=15) • Maintained in dry lot • Fed hay and grain – Free choice mixed hay – Whole barley once per day Pasture-fed (n=15) • Maintained on pasture – Pasture-only diet – No supplemental feed
  4. 4. Growth rate - average daily gain (ADG) 0.311 ± 0.071 lb./d 0.064 ± 0.036 lb./d
  5. 5. Fecal egg counts (eggs per gram of feces) Fecal egg counts are a measure of parasite infection (# worms) 8 12 Pastures were pre-infected by sheep. All goats were dewormed on May 31 with three anthelmintics. 3 1 3
  6. 6. FAMACHA© scores (1-5) FAMACHA© scores estimate packed cell volume (PCV), which is a measure of the anemia caused by the worms 8 12 3 1 3
  7. 7. Live and carcass weights
  8. 8. Percent carcass yields
  9. 9. Carcass fat
  10. 10. Carcass muscling Rib eye area (REA) - in2 +28% +37%
  11. 11. Meat Quality (2012 data) Mg fatty acid per gram of dry meat Top 4 (>90%) fatty acids in goat meat Pasture 120.0 Pen +50 mg 100.0 80.0 60.0 40.0 20.0 +8.7 mg +10.5 mg +3.4 mg 0.0 Caproic SFA (neutral) Palmitic Bad SFA Stearic Oleic Neutral SFA MUFA (good)
  12. 12. Economics of pen vs. pasture feeding Group USDA grade Price per cwt Avg. weight Value per head Pasture 2.5 $159 55.2 $88 Pen 1.1 $207 74.5 $154 Difference 1.4 $48 19.3 $66 Group Lbs. lean Price per lb. Value per head Pasture 9.70 $10 $97 Pen 16.65 $10 $166.50 Difference 6.95 0 $69.50 Feed cost for pen goats Barley: 1.1 x 84 x $13/cwt = $12.01 Hay: 2.4 x 84 x $12/cwt = $24.34 Total: $36.40/head Profit: $154-$36.40 = $117.60/head Cost for pasture goats $100/acre x 12.5 acres x 96 goats ÷ 15 = $13.02 Death loss (FAMACHA 5 ): 4 x $88 ÷ 15 = $23.47 Total: $36.49/head Profit: $88-$36.49 = $51.51/head
  13. 13. Goat Twilight Tour (open house) August 1, 2013
  14. 14. We’d like to repeat the study for a third and final time. • Results in 2011 and 2013 differed from results in 2012 • 2013 was the first year in which a uniform set of goats was utilized in study (a similar source of goats has confirmed for 2014). • Repeat study feeding whole barley instead of a more expensive ration. • Pasture, weather, and economic conditions vary each year.
  15. 15. Thank you Maryland Grain Producers!

×