Evaluation of Some Productive Characteristics of Jordanian Awassi
DOI:
https://doi.org/10.5455/ijlr.20201220013326%20%20%20%20%20%20Keywords:
Ewes, Litter weights, Milk, Jordanian AwassiAbstract
This study was carried out on Awassi ewes at Al-Fjaj station, Jordan. The objectives were investigated environmental factors affecting litter-birth weight (LBW), litter-weaning weight (LWW), milk yield (MY), daily-milk yield (DMY) [kg], and milking season (MkSn) [day] and estimated its values. LBW was highly significantly affected lambing year (YL), parity (PR), birth type (BT), litter-sex (LS), and (YL×BT). LWW was highly significantly affected by (YL), (LS), (YL×BT), (PR×BT), and Ewe weight at lambing (ELW). The effect of YL and LS were highly significant on MY and MkSn and significant on DMY. Production line of ewe (LE) and (PR) had significant on MkSn and MY, respectively. (LE×PR) and (PR×BT) had a significant on DMY. The value of corrected correlations varied from low to moderate and highly significant effect except (MY) with (LBW) and (LWW). Awassi sheep have dual productivity due to the low correlations between milk traits and weights in Jordan.
References
Alkass, J.E., AL-Azzawi, W.A.R., & AL-Tayy, H.M. (2009). Milk Production in Awassi Sheep and their Crosses with Assaf under Accelerated Lambing System: Journal of Zankoy Sulaimani, part A 12(1), 7-12.
Alkass, J.E., & Akreyi, I.A.I. (2016). Milk Production of Awassi and Karadi Ewes Raised Under Farm Conditions: Advanced Journal of Agricultural Research, 4(01), 008-013.
Al-Momani, A., Ata, M., & Al-Najjar, K. (2020). Evaluation of Weight and Growth Rates of Awassi Sheep Lambs: Asian Journal of Research in Animal and Veterinary Sciences, 5(3), 26-32.
Al-Najjar, K., Al-Aghbri, A.W., Al-Marestani, M.R., Dibba, A., Dawa, M., & Abdo Z. (2011). Evaluation of Some Productive Traits on Awassi Ewes in Some Animal Wealth Research Stations in Syria: The Arab Journal for Arid Environments, 6(2), 102–110.
Al-Samarai, F.R., & Al-Anbari, N.N. (2009). Genetic evaluation of rams for total milk yield in Iraqi Awassi sheep: Journal of Agricultural and Biological Science, 4(3), 54–57.
Bromley, C.M., Van Vleck, L.D., & Snowder, G.D. (2001). Genetic correlations for litter weight weaned with growth, prolificacy, and wool traits in Columbia, Polypay, Rambouillet, and Targhee sheep: Journal of Animal Science, 79(2), 339–346. DOI:10.2527/2001.792339x
Burfening, P.J. (1972). Prenatal and postnatal competition among twing lambs. Animal Production. 15(1), 61-66. DOI.org/10.1017/S0003356100011223.
Casas, E., Freking, B.A., & Leymaster, K.A. (2004). Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: II. Reproduction of F1 ewes in fall mating seasons: Journal of Animal Science, 82(5), 1280–1289. https://doi.org/10.2527/2004.8251280x
Duncan, D.B. (1955). Multiple range and multiple F tests: Biometrics, 11, 1-42. http://garfield.library.upenn.edu/classics1977/A1977DM02600001.pdf
Epstein, H. (1985). The Awassi sheep with special reference to the improved dairy type [Rome, July 1985]: Food and Agriculture Organization of the United Nations. http://www.fao.org/3/aj003e/aj003e.pdf
FAO., (2018). Food and Agriculture Organization of the United Nations: WWW.fao.org/faostat/en#/dataQA.
Freetly, H.C., & Leymaster, K.A. (2004). Relationship between litter birth weight and litter size in six breeds of sheep: Journal of Animal Science, 82(2), 612–618.
Haile, A., Hilali, M., Hassen, H., Rekik, M., Lobo, R.N.B., Tibbo, M., Mwacharo, J.M., & Rischkowsky, B. (2017). Evaluation of Awassi sheep genotypes for growth, milk production and milk composition: Journal of Experimental Biology and Agricultural Sciences, August, 5(1), S69-S75.
Jawasreh, K.I.Z., & Khasawneh, A.Z. (2007). Genetic evaluation of milk production traits in Awassi sheep in Jordan: Egyptian Journal of Sheep and Goat Sciences, 2(2), 83–100.
Kassem, R., AL-Azzawi, W., AL-Najjar, K., Masri, Y., Salhab, S., Abdo, Z., EL-Herek, I., Omed, H., & Saatci, M. (2010). Factors Influencing the Milk Production of Awassi Sheep in A Flock with the Selected Lines at the Agricultural Scientific Research Centre in Salamieh, Syria: Kafkas University Journal of Veterinary Faculty, 16(3), 425-430.
Kaygisiz, A., & Birol, D. (2017). Effects of udder types and some environmental factors on milk production of improved awassi sheep: Kahramanmaraş Sütçü İmam University Journal of Natural Sciences, 20(4), 344-349.
Korsten P., Clutton-Brock T., Pilkington J.G., Josephine M.P. and Loeske E.B.K. (2009). Sexual conflict in twins: male co-twins reduce fitness of female Soay sheep: Biology letters, 5, 663–666 DOI:10.1098/rsbl.2009.0366.
Oravcova, M., Macuhova, L., & Tancin, V. (2018). The relationship between somatic cells and milk traits, and their variation in dairy sheep breeds in Slovakia: Journal of Animal and Feed Sciences, 27, 97–104.
Oravcova, M., Margetin, M., Peskovicova, D., Dano, J., Milerski, M., Hetenyi, L., & Polak. P. (2006). Factors affecting milk yield and ewe’s lactation curves estimated with test-day models: Czech Journal of Animal. Science, 51(11), 483–490.
Ozyurek, S. (2020). Investigation of Relationship between Udder Morphology, Lactation Traits and Milk Components in Morkaraman and Awassi: Gumushane Universities Journal of Science and Technology, 10(1), 268-274.
SAS., (2012). SAS/STAT® [9.4] User’s Guide. The Statistical Analysis System: SAS Institute Inc., Cary, NC, USA.
Selvaggi, M., Laudadio, V., Dario, C., & Tufarelli. V. (2014). Investigating the genetic polymorphism of sheep milk proteins, a useful tool for dairy production: Journal of Science Food Agriculture, 94(15), 3090-3099.
Thomas, D.L., Berger, Y.M.M., Mckusick, C.B., & Claire, M.M. (2014). Dairy sheep production research at the University of Wisconsin-Madison, USA –a review: Journal of Animal Science and Biotechnology, 5(22), 1-12.
Vatankhah, M., & Talebi. M.A. (2008). Heritability estimates and correlations between production and reproductive traits in Lori-Bakhtiari sheep in Iran: South African Journal of Animal Science, 38(2), 110-118.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.