Transcript The Effect of Feed and Breed Type on Goat Carcass
The Effect of Breed Type on Goat Carcass
Ali Donohue
Why Goat Meat?
• Increase Ethnic Diversity – Increase demand for goat meat – 1999: 450,000 – 2004: 600,000 – Average 12,000 a week in US
Breed Types Used
Spanish Boer X Spanish Spanish X Angora Boer X Angora Angora
Live and Carcass Weight
• Boer X Spanish had heavier live and carcass weight than Spanish goats (Oman et al. 1999).
• Weights for Boer X Spanish and Spanish X Angora did not differ. • Body weight, empty BW, and hot carcass weight were greater in Boer crosses than for Spanish crosses (Cameron et al. 2001).
Boer X Angora Angora Spanish X Angora Spanish Boer X Spanish 0 Live Weight 10 20 kg 30.1
28 36.5
33.5
38.2
30 40 50 Live wt, kg Boer X Angora Angora Spanish X Angora Spanish Boer X Spanish 0 Hot Carcass Weight 5 10 kg 14.1
14.5
15 20.1
19 21.7
20 25 Hot carcass wt, kg
Carcass Bone, Fat, and Lean Weight
• Carcass bone, fat, and lean weights were significantly or numerically greater for Boer crossbreds than for Spanish goats (Cameron et al. 2001). • Carcasses from Boer × Spanish and Spanish goats possessed higher (
P
< .05) percentages of lean and lower (
P
< .05) percentages of fat for the side than did carcasses from Spanish × Angora and Angora goats (Omen et al. 2000).
Carcass Bone, Fat, and Lean Weight
• When the Spanish × Angora carcasses were compared to the Angora carcasses, it seemed that the addition of the Spanish breeding tended to increase lean and decrease fatness for most side on primal comparisons (Omen et al. 2000).
• Feedlot goat carcasses possessed higher fat percentages and lower bone percentages than range goat carcasses (Omen et al. 1999).
Carcass Bone, Fat, and Lean Percentage 80 60 % 40 20 0 Boer X Spanish Spanish Spanish X Angora Breed Angora Boer X Angora Lean Bone Fat
References
• Cameron, M.R., Luo, J., Sahlu, T., Hart, S.P., Coleman, S.W., and Goetsch, A.L., 2001. Growth and slaughter traits of Boer X Spanish, Boer X Angora, and Spanish goats consuming a concentrate- based diet. J. Anim. Sci. 79:1423-1430 .
• NASS, 2008. National Agriculture Statistical Service. USDA, Washington,DC.
• Oman, J.S., Waldron, D.F., Griffin, D.B., and Savell, J.W., 1999. Effects of Breed- Type and Feeding Regimen on Carcass Traits Goat. J. Anim. Sci. 77:3215- 3218 • Oman, J.S., Waldron, D.F., Griffin, D.B., and Savell, J.W., 2000. Carcass Traits and retail display- life of chops from different goat breed types. J. Anim. Sci. 78:1262- 1266