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Effect of Concentrate Supplementation on Performances of Ethiopian Lowland Afar and Blackhead Ogaden Lambs

Received: 1 March 2014    Accepted:     Published: 30 March 2014
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Abstract

The study was conducted to evaluate the effect of increased concentrate supplementation on nutrient intake, growth performance, carcass characteristics, duration of feeding and profitability of Ethiopian Afar and Blackhead Ogaden (BHO) lambs. Forty-eight lambs (24/breed) initially weighing 17.84±1.6 kg were randomly assigned to three dietary treatments (T) in Complete Randomized Design. Each lamb was fed on tef straw ad libtium and supplemented with 150, 300, 450 g d-1 of concentrate (containing 19.4% crude protein (CP) and 11.28 MJ ME kg-1DM) in T1, T2 and T3, respectively. Intake and growth trial lasted for 126 days, followed by digestibility trial of 7 days. Dry matter (DM) intake increased (p<0.0001) with increasing concentrate offer in lambs in general, but higher (p<0.05) in Afar than in BHO lambs. Intake of CP peaked at the highest level of supplementation. Increased (p<0.0001) digestibility of DM, CP, neutral detergent fiber (NDF) and acid detergent fiber (ADF) were noted at higher concentrate offer in Afar lambs. Average daily gain of lambs increased (p<0.0001) with increased concentrate, and lambs reached the target weight (25-30kg) for export market relatively within short period of feeding at higher than lower level of concentrate supplementation. Given equal level of concentrate, Afar lambs reached the target weight in less days of feeding than BHO lambs. Increasing concentrate has resulted in increased slaughter weight (SW), hot carcass weight (HCW), dressing percent (DP) and lean-to-fat ratio (LFR) in Afar lambs, while it improved SW, HCW and DP in BHO lambs. This study indicated that increased meat production measured in terms of live weight change and carcass yield in Afar and BHO lambs can be achieved at high concentrate supplementation with profit.

Published in Animal and Veterinary Sciences (Volume 2, Issue 2)
DOI 10.11648/j.avs.20140202.14
Page(s) 36-41
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Concentrate, Intake, Lambs, Live Weight, Tef Straw

References
[1] CSA (Central Statistic Authority) of Ethiopia, Agricultural Sample Survey. 2010. Report on Livestock and Livestock Characteristics (Private Peasant Holdings). Vol. II, pp. 94.
[2] Hurissa, B. and J.Eshetu. 2003. Challenges and opportunities of livestock trade in Ethiopia. Challenges and opportunities of livestock marketing in Ethiopia. In: Yilma Jobre and Getachew Gebru.(eds), Proceedings of 10th annual conference of the Ethiopian Society of Animal Production (ESAP) held in Addis Ababa, Ethiopia, August 22–24, 2002. ESAP, Addis Ababa, Ethiopia. pp. 1–14.
[3] Betsha, S. 2005. Supplementation of graded levels of peanut cake and wheat bran mixtures on nutrient utilization and carcass parameters of Somali goats. An MSc Thesis Presented to the School of Graduate Studies of Alemaya University of Agriculture, Alemaya, Ethiopia.75p.
[4] Bogale, S., S. Melaku and A.Yami. 2008a. Potential use of crop residues as livestock feed resources under conditions of smallholder farmers in Bale highlands of Ethiopia. Tropical and sub-tropical Agro-ecosystems, 8, 107-114.
[5] IAR (Institute of Agricultural Research), 1991. Strategic Planning for Livestock Research in the Institute of Agricultural Research (IAR), Addis Ababa, Ethiopia.
[6] AOAC (Association of Official Analytical Chemists), 1990. Official method of analysis.15th ed. AOAC Inc., Arlington, Virginia, USA. pp. 12-98.
[7] Van Soest. P.J., Robertson, J.B., Lewis, B.A, 1991. Methods for dietary fiber, neutral detergent fiber and non-starch polysaccharides in relation to animal nutrition. J.Dairy Sci. 74, 3583-3597.
[8] SAS(Statistical Analysis System).2003. SAS Institute. Inc., Cary, NC, USA.
[9] Gala, E.S.E., K. Awugichew, B. Kebede, G. Yohannes and P.B. O’Donovan, 1979a. A study on fattening Ethiopian sheep: I. Performance of highland lambs under feedlot Conditions. Eth. J. of Agri.Sci. 1:93:98.
[10] Akalu, B. and E.S.E. Galal, 1981. Comparison between fattening ability of Adal and Black head Somali sheep. Animal Production Bulletin no. 14 (IAR) Addis Ababa, Ethiopia.
[11] Estifanos, A. and S. Melaku. 2009. Supplementation of graded level of wheat bran to intact and castrated Afar sheep fed urea treated tef straw: Effect on feed intake, digestibility, body weight and carcass characteristics. East African Journal of Sci.vol.3 no.1, 2009
[12] Hagos, T. and S. Melaku. 2009. Feed intake, digestibility, body weight and carcass parameters of Afar rams fed tef (Eragrostis tef) straw supplemented with graded levels of concentrate mix. Tropical Animal Health and Production. 41: 599-606.
[13] Hailu, A., S. Melaku, B.Tamir and A.Tasew 2011. Body weight and carcass characteristics of Washera sheep fed urea treated rice straw supplemented with graded levels of concentratemixiture.2011. http:www-.Irrd.org/Irrd 23/8/cont2308.htm
[14] Papi N., Mostafa-Tehrania, A., Amanlou, H., Memarian, M. 2011. Effects of dietary forage-to-concentrate ratios on performance and carcass characteristics of growing fat-tailed lambs. Animal Feed Science and Technology 163: 93–98.
[15] Singh, N.P., Sankhyan, S.K., Prasad, S.S. 2004.Effect of supplementary concentrate on growth and carcass characteristics in crossbred sheep of dual purpose.Indian J. Anim. Sci. 74, 878–881.
[16] Mahgoub, O., Lu, C.D., R.J. Early, 2000.Effects of dietary energy density on feed intake, body weight gain and carcass chemical composition of Omani growing lambs. Small Rumin. Res. 37, 35–42.
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    Getahun Kebede Yadete. (2014). Effect of Concentrate Supplementation on Performances of Ethiopian Lowland Afar and Blackhead Ogaden Lambs. Animal and Veterinary Sciences, 2(2), 36-41. https://doi.org/10.11648/j.avs.20140202.14

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    ACS Style

    Getahun Kebede Yadete. Effect of Concentrate Supplementation on Performances of Ethiopian Lowland Afar and Blackhead Ogaden Lambs. Anim. Vet. Sci. 2014, 2(2), 36-41. doi: 10.11648/j.avs.20140202.14

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    AMA Style

    Getahun Kebede Yadete. Effect of Concentrate Supplementation on Performances of Ethiopian Lowland Afar and Blackhead Ogaden Lambs. Anim Vet Sci. 2014;2(2):36-41. doi: 10.11648/j.avs.20140202.14

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  • @article{10.11648/j.avs.20140202.14,
      author = {Getahun Kebede Yadete},
      title = {Effect of Concentrate Supplementation on Performances of Ethiopian Lowland Afar and Blackhead Ogaden Lambs},
      journal = {Animal and Veterinary Sciences},
      volume = {2},
      number = {2},
      pages = {36-41},
      doi = {10.11648/j.avs.20140202.14},
      url = {https://doi.org/10.11648/j.avs.20140202.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.avs.20140202.14},
      abstract = {The study was conducted to evaluate the effect of increased concentrate supplementation on nutrient intake, growth performance, carcass characteristics, duration of feeding and profitability of Ethiopian Afar and Blackhead Ogaden (BHO) lambs. Forty-eight lambs (24/breed) initially weighing 17.84±1.6 kg were randomly assigned to three dietary treatments (T) in Complete Randomized Design. Each lamb was fed on tef straw ad libtium and supplemented with 150, 300, 450 g d-1 of concentrate (containing 19.4% crude protein (CP) and 11.28 MJ ME kg-1DM) in T1, T2 and T3, respectively. Intake and growth trial lasted for 126 days, followed by digestibility trial of 7 days. Dry matter (DM) intake increased (p<0.0001) with increasing concentrate offer in lambs in general, but higher (p<0.05) in Afar than in BHO lambs. Intake of CP peaked at the highest level of supplementation. Increased (p<0.0001) digestibility of DM, CP, neutral detergent fiber (NDF) and acid detergent fiber (ADF) were noted at higher concentrate offer in Afar lambs. Average daily gain of lambs increased (p<0.0001) with increased concentrate, and lambs reached the target weight (25-30kg) for export market relatively within short period of feeding at higher than lower level of concentrate supplementation. Given equal level of concentrate, Afar lambs reached the target weight in less days of feeding than BHO lambs. Increasing concentrate has resulted in increased slaughter weight (SW), hot carcass weight (HCW), dressing percent (DP) and lean-to-fat ratio (LFR) in Afar lambs, while it improved SW, HCW and DP in BHO lambs. This study indicated that increased meat production measured in terms of live weight change and carcass yield in Afar and BHO lambs can be achieved at high concentrate supplementation with profit.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Effect of Concentrate Supplementation on Performances of Ethiopian Lowland Afar and Blackhead Ogaden Lambs
    AU  - Getahun Kebede Yadete
    Y1  - 2014/03/30
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    DO  - 10.11648/j.avs.20140202.14
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    JF  - Animal and Veterinary Sciences
    JO  - Animal and Veterinary Sciences
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    AB  - The study was conducted to evaluate the effect of increased concentrate supplementation on nutrient intake, growth performance, carcass characteristics, duration of feeding and profitability of Ethiopian Afar and Blackhead Ogaden (BHO) lambs. Forty-eight lambs (24/breed) initially weighing 17.84±1.6 kg were randomly assigned to three dietary treatments (T) in Complete Randomized Design. Each lamb was fed on tef straw ad libtium and supplemented with 150, 300, 450 g d-1 of concentrate (containing 19.4% crude protein (CP) and 11.28 MJ ME kg-1DM) in T1, T2 and T3, respectively. Intake and growth trial lasted for 126 days, followed by digestibility trial of 7 days. Dry matter (DM) intake increased (p<0.0001) with increasing concentrate offer in lambs in general, but higher (p<0.05) in Afar than in BHO lambs. Intake of CP peaked at the highest level of supplementation. Increased (p<0.0001) digestibility of DM, CP, neutral detergent fiber (NDF) and acid detergent fiber (ADF) were noted at higher concentrate offer in Afar lambs. Average daily gain of lambs increased (p<0.0001) with increased concentrate, and lambs reached the target weight (25-30kg) for export market relatively within short period of feeding at higher than lower level of concentrate supplementation. Given equal level of concentrate, Afar lambs reached the target weight in less days of feeding than BHO lambs. Increasing concentrate has resulted in increased slaughter weight (SW), hot carcass weight (HCW), dressing percent (DP) and lean-to-fat ratio (LFR) in Afar lambs, while it improved SW, HCW and DP in BHO lambs. This study indicated that increased meat production measured in terms of live weight change and carcass yield in Afar and BHO lambs can be achieved at high concentrate supplementation with profit.
    VL  - 2
    IS  - 2
    ER  - 

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Author Information
  • Department of Livestock Research, Debre Zeit Agricultural Research Center, Debre Zeit, Ethiopia

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