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Small Ruminant Production Systems Stephan Wildeus Virginia State University. Breed Resource Evaluation at Virginia State University. Species comparison of meat goat and hair sheep breeds Evaluation of breed types within species

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Presentation Transcript
slide1

Small Ruminant

Production

Systems

Stephan Wildeus

Virginia State University

Beaver - 2006

breed resource evaluation at virginia state university
Breed Resource Evaluation at Virginia State University
  • Species comparison of meat goat and hair sheep breeds
  • Evaluation of breed types within species
    • Goats: Nubian, Spanish, Myotonic, Pygmy, Boer x Spanish, and Boer and Kiko terminal sire kids
    • Sheep: Barbados Blackbelly, Katadhin, St. Croix

Beaver - 2006

program history
Program history
  • Initiated as Meat Goat Program in 1992
  • Changed to Small Ruminant Program 1997
    • introduced breeding flocks of Katahdin in 1997
    • Barbados Blackbelly in 1998
    • St. Croix hair sheep in 1999
  • Emphasis on breed evaluation and forage-based, low-input production systems

Beaver - 2006

animal resources hair sheep
Animal resources : hair sheep

Barbados Blackbelly

Katahdin

St. Croix

Beaver - 2006

animal resources goats
Animal resources : goats

Boer cross

Pygmy

Myotonic

Spanish

Beaver - 2006

kidding performance of goat breeds under a forage based accelerated mating system 1996 2000
Kidding performance of goat breeds under a forage-based, accelerated mating system (1996-2000)

Beaver - 2006

effect of breeding season on prolificacy in meat goats during two breeding cycles
Effect of breeding season on prolificacy in meat goats during two breeding cycles

Cycle 1

Cycle 2

Beaver - 2006

effect of breeding season on prolificacy in meat goats during two breeding cycles11
Effect of breeding season on prolificacy in meat goats during two breeding cycles

Cycle 2

Cycle 1

Beaver - 2006

effect of season and breed on pregnancy lambing and weaning rate in hair sheep breeds
Effect of season and breed on pregnancy, lambing and weaning rate in hair sheep breeds

Katahdin

Blackbelly

St. Croix

Beaver - 2006

effect of season on pregnancy rate of replacement ewes
Effect of season on pregnancy rate of replacement ewes
  • Reduced pregnancy rates in 11 mo old replacement ewes in July and March

Nov

Jul

Mar

Nov

Jul

Mar

Nov

Beaver - 2006

daily gain lbs d in spanish and boer goats fed alfalfa hay diets in two different trials
Daily gain (lbs/d) in Spanish and Boer goats fed alfalfa hay diets in two different trials

Beaver - 2006

body weight and daily gain in goats and hair sheep fed fescue hay and concentrate 2 bw
Body weight and daily gain in goats and hair sheep fed fescue hay and concentrate (2% BW)

Beaver - 2006

live grade and ultrasonic backfat and rib eye in goats and hair sheep fed high forage diets
Live grade and ultrasonic backfat and rib eye in goats and hair sheep fed high forage diets

Beaver - 2006

growth rates of hair sheep lambs and meat goats kids fed alfalfa and grass hay trial 2
Growth rates of hair sheep lambs and meat goats kids fed alfalfa and grass hay (Trial 2)

Beaver - 2006

starting and final weights and daily gain in goats and hair sheep fed forage based diets trial 2
Starting and final weights, and daily gain in goats and hair sheep fed forage-based diets (Trial 2)

Beaver - 2006

trial a
Trial A
  • 36 weaned ewe and wether lambs (12/breed)
  • Fescue pasture; alfalfa hay
  • Hay group: 6 pens; 3 animal/pen balanced by breed
  • 0.75% body wt concentrate supplement

Beaver - 2006

trial b
Trial B
  • 72 weaned ewe and wether lambs (24/breed);
  • Fescue pasture; mixed grass hay
  • Hay group: 6 pens balanced by breed
  • Concentrate supplementation at 1.5% body wt
  • Two levels of protein in concentrate (16.8% vs. 24.3%)

Beaver - 2006

body weight changes in three hair sheep breeds reared on pasture or in pens trial a
Body weight changes in three hair sheep breeds reared on pasture or in pens (Trial A)

BB: 0.12 lb/d

KA: 0.19 lb/d

STX: 0.17 lb/d

Beaver - 2006

body weight changes in three hair sheep breeds reared on pasture or in pens trial b
Body weight changes in three hair sheep breeds reared on pasture or in pens (Trial B)

BB: 0.16 lb/d

KA: 0.24 lb/d

STX: 0.19 lb/d

Beaver - 2006

body weight growth and dm intake in lambs fed alfalfa hay 17 6 cp with no supplement
Body weight, growth and DM intake in lambs fed alfalfa hay (17.6% CP) with no supplement

Beaver - 2006

species differences in goats and hair sheep in mean fec and pcv during the grazing season 1
Species differences in goats and hair sheep in mean FEC and PCV during the grazing season1

Beaver - 2006

breed differences in goats and hair sheep in mean fec and pcv during the grazing season 1
Breed differences in goats and hair sheep in mean FEC and PCV during the grazing season1

Beaver - 2006

effect of breed and feeding system on changes in fecal egg counts in lambs 2001 data
Effect of breed and feeding system on changes in fecal egg counts in lambs (2001 data)

breed x feeding system P<.05

deworm

Beaver - 2006

effect of breed and feeding system on changes in packed blood cell volume 2001 data
Effect of breed and feeding system on changes in packed blood cell volume (2001 data)

breed P<.01; feeding system P<.01

deworm

Beaver - 2006

changes in fecal egg count in three hair sheep breeds reared on pasture or in pens 2003 data
Changes in fecal egg count in three hair sheep breeds reared on pasture or in pens (2003 data)

Beaver - 2006

changes in packed cell volume in three hair sheep breeds reared on pasture or in pens 2003 data
Changes in packed cell volume in three hair sheep breeds reared on pasture or in pens (2003 data)

Beaver - 2006