Growth, carcass and meat characteristics of Karayaka growing rams fed sugar beet pulp, partially substituting for grass hay as forage


Olfaz M., Ocak N., Erener G., ÇAM M. A., Garipoglu A. V.

MEAT SCIENCE, sa.1, ss.7-14, 2005 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.meatsci.2004.11.015
  • Dergi Adı: MEAT SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.7-14
  • Anahtar Kelimeler: Karayaka sheep breed, nutrition, sugar beet pulp, body measurement, meat quality, FATTY-ACID-COMPOSITION, SLAUGHTER WEIGHT, FEEDING SYSTEMS, LIGHT LAMBS, CITRUS PULP, LOW-QUALITY, CAROB PULP, DIETS, PERFORMANCE, RUMINANTS
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

Twenty-one growing male Karayaka sheep were divided into three groups of seven at 12 months of age. All groups received a commercial feed (60%) and roughage (40%). One group received grass hay as roughage (control, C), the other two groups received a mixture in which 40 (0.40SBP) or 60% (0.60SBP) sugar beet pulp (SBP) was used in partial replacement of grass hay in the C group during 56 days. Dry matter (DM) intake and DM conversion index (kg DM per kg weight gain) of the C group were higher (P < 0.01) than that of the 0.40SBP and 0.60SBP groups. While the 0.60SBP increased (P < 0.05) the L* of meat from the Karayaka young rams, the 0.40SBP or 0.60SBP decreased the ultimate pH (P < 0.05) and cooking loss (P < 0.01) compared to the C group. Means for redness (a*), yellowness (b*), Hue (H*) and Chroma (C*) and sensory characteristics indicated that there were no significant differences between dietary treatments. Inclusion of 60% SBP increased the palmitic (P < 0.02) and linoleic (P < 0.01) acid contents of the meat, it decreased (P < 0.01) stearic, oleic and arachidonic acid contents compared to the C group. The 0.40SBP also increased (P < 0.01) the linoleic acid content of the meat, but it decreased (P < 0.01) stearic and arachidonic acid contents compared to the control. Although meat from young rams fed 0.60SBP diet had a higher value of lightness and linoleic acid, and a lower value of cooking loss than those from animals fed the C diet, sensory evaluation did not discriminate the meat from young rams fed with control and/or SBP diets. Therefore, grass hay can be replaced by 60% of SBP in the growing diet for Karayaka rams without a reduction in meat quality. (c) 2004 Elsevier Ltd. All rights reserved.