Relation of Growth of Crossbred Hair Sheep with some Zoometric Measures
محورهای موضوعی : Camel
سی.آ. اُردونز-گومز
1
(Agricultural, Environment and Sustainable Development Research Group (GI@DS), Faculty of Agricultural and Environment Science, Francisco de Paula Santander University, Ocaña, Colombia)
کلید واژه: Regression Analysis, animal morphology, body regions,
چکیده مقاله :
The weighing records of 18 crossbred females with average live weight of 14.7 ± 3.14 kg were analyzed to study the relationship of the growth of crossbred hair sheep with some zoometric measures. The weight was established and took the measures thoracic perimeter, cannon perimeter, body length, neck length, hip amplitude, ischial amplitude, withers height and croup height. All parameters were stated as cm. Within 60 days of the initial weighing and taken the zoometric measures, animals were weighed again and the average daily gain was estimated. The correlation coefficients of initial body weight with zoometric measures were high (r>0.7) and the highest of average daily gain were with thoracic perimeter (r=0.41) and body length (r=0.34), to the remaining variables the coefficients were below 0.3.According to Akaike information criterion the best fit model to describe the growth was, average daily gain (ADG) (g/d)= 3.3 × thoracic perimeter (PT) - 44.4 × perimeter cane (PC) + 5.4 × body length (LCO) + 5.6 × amplitude hip (AC) - 3.3 × height at the croup (ALG) (R2=0.92, Akaike information criterion (AIC)=96.8; P<0.05). The zoometric measures relate to the growth, proving to be a tool for information about the growth potential of crossbred lambs.
با هدف مطالعه رابطه بین رشد گوسفندان پشمی آمیخته با برخی از سنجههای حیاتی، رکوردهای توزین 18 ماده آمیخته با میانگین وزن 14/3 ± 7/14 کیلوگرم آنالیز گردیدند. علاوه بر وزن، محیط سینه، محیط ساق، طول بدن، طول گردن، بزرگی استخوان هیپ، بزرگی استخوان ایسشیال، ارتفاع جدوگاه و ارتفاع جناق اندازهگیری شد. همه اندازهگیریها در مقیاس سانتیمتر انجام شد. 60 روز پس از وزنکشی و اندازهگیری سنجههای حیاتی، حیوانات مجدداً توزین شده و میانگین افزایش وزن روزانه آنها برآورد گردید. ضرایب همبستگی وزن بدن اولیه با سنجههای حیاتی بالا بود (7/0<r) و بالاترین میانگین افزایش وزن روزانه در صفت محیط سینه (34/0=r) و طول بدن (34/0=r) مشاهده شده و در سایر متغیرها ضرایب همبستگی زیر 3/0 بودند. بر مبنای معیار اطلاعات آکایک، بهترین مدل برازش یافته برای توصیف رشد عبارت بود از: ارتفاع جناق (ALG) × 3/3 - بزرگی هیپ (AC) × 6/5 + طول بدن (LCO) × 4/5 + محیط ساق (PC) × 4/44 - محیط سینه (PT) × 3/3 = میانگین افزای وزن روزانه بر حسب گرم در روز (ADG) (92/0=R2، 8/96=معیار اطلاعات آکایک (AIC)، 05/0>P). سنجههای حیاتی با رشد در ارتباط بوده و این موضوع نشان میدهد که این سنجهها میتوانند ابزاری برای کسب اطلاع از پتانسیل رشد برههای آمیخته باشند.
Alves K.S., Carvalho F.F.R., Verás A.S.C., Ferreira M., Costa R.G., Vieira A.M., Nunes A., Souto R.J. and Bezerra D.K. (2003). Níveis de energia em dietas para ovinos Santa Inês: Desempenho. R. Bras. Zootec. 32, 1937-1944.
Bautista-Díaz E., Salazar-Cuytun R., Chay-Canul A.J., Herrera R.A.G., Piñeiro-Vázquez Á.T., Monforte J.G.M. and Tedeschi L.O. (2017). Determination of carcass traits in Pelibuey ewes using biometric measurements. Small Rumin. Res. 147, 115-119.
Burke J.M., Apple J.K., Roberts W.J., Boger C.B. and Kegl ey E.B. (2003). Effect of breed-type on performance and carcass traits of intensively managed hair sheep. Meat Sci. 63, 309-315.
Carneiro H., Louvandini H., Paiva S.R., Macedo F., Mernies B. and McManus C. (2010). Morphological characterization of sheep breeds in Brazil, Uruguay and Colombia. Small Rumin. Res. 94, 58-65.
De Haas Y., Janss L.L.G. and Kadarmideen H.N. (2007). Genetic and phenotypic parameters for conformation and yield traits in three Swiss dairy cattle breeds. J. Anim. Breed. Genet. 124(1), 12-19.
Haldar A., Prasenjit Pal M., Datta Rajesh P., Saumen K.P., Debasis Majumdar C., Biswas K. and Subhransu P. (2014). Prolificacy and its relationship with age, body weight, parity, previous litter size and body linear type traits in meat-type goats. Asian-Australasian J. Anim. Sci. 27(5), 628-634.
König E.Z., Ojango J.M.K., Audho J., Mirkena T., Strandberg E., Okeyo A.M. and Philipsson J. (2017). Live weight, conformation, carcass traits and economic values of ram lambs of Red Maasai and Dorper sheep and their crosses. Trop. Anim. Health Prod. 49(1), 121-129.
Legaz E., Cervantes I., Perez-Cabal M.A., de la Fuente L.F., Martinez R., Goyache F. and Gutierrez J.P. (2011). Multivariate characterisation of morphological traits in Assaf (Assaf. E) sheep. Small Rumin. Res. 100, 122-130.
López-Carlos M.A., Ramírez R.G., Aguilera-Soto J.I., Aréchiga I.C.F. and Rodríguez H. (2010). Size and shape analyses in hair sheep ram lambs and its relationships with growth performance. Livest. Sci. 31, 203-211.
MacNeil M.D. and Mott T.B. (2006). Genetic analysis of gain from birth to weaning, milk production and udder conformation in line 1 Hereford cattle. J. Anim. Sci. 84, 1639-1645.
Mernies B., Macedo F., Filonenko Y. and Fernández G. (2007). Zoometric indices in a sample of Uruguayan creole ewes. Arch. Zootec. 56(1), 473-478.
Musa A.M., Idam N.Z. and Elamin K.M. (2012). Regression analysis of linear body measurements on live weight in Sudanese Shugor sheep. Online J. Anim. Feed Res. 2(1), 27-29.
Ricardo H.A., Roça R.O., Lambe N.R., Seno L.O., Fuzikawa I.S. and Fernandes A.M. (2016). Prediction of weight and percentage of salable meat from Brazilian market lambs by subjective conformation and fatness scores. R. Bras. Zootec. 45(10), 639-644.
Rizwana H., Shahani F., Abro R., Naeem M., Rajput N., Memon M.I., Abro S.H., Baloch H., Kunbhar H.K., Mughal G.A. and Ali S.S. (2016). Comparative study on growth and conformation of male dumbi lambs under two management systems. J. Basic Appl. Sci. 12, 275-280.
Rocha L., Venció R., Oliveira J., Ribeiro M. and Delgado J. (2007). Estimation of morphoestructural traits in Moxoto breed goats. Arch. Zootec. 56(1), 483-488.
Sandoval E., Morales G., Jiménez D., Pino L. and Márquez O. (2007). Efecto de tratamientos antiparasitario y antianémico sobre la ganancia de peso e indicadores hematoquímicos en ovejas tropicales infectadas en condiciones naturales. Zoo. Trop. 25(4), 285-290.
SAS Institute. (2002). SAS®/STAT Software, Release 9.2. SAS Institute, Inc., Cary, NC. USA.
Sinha N. and Singh S. (1997). Genetic and phenotypic parameters of body weights, average daily gains and first shearing wool yield in Muzaffarnagri sheep. Small Rumin. Res. 26, 21-29.
Snowder G. and Van Vleck L. (2003). Estimates of genetic parame ters and selection strategies to improve the economic ef ficiency of postweaning growth in lambs. J. Anim. Sci. 81, 2704-2713.
Souza E., Sousa W., Pimenta E., Gonzaga S., Cartaxo F., Cezar M., Cunha M. and Pereira J. (2013). Effect of frame size on performance and carcass traits of Santa Inês lambs finished in a feedlot. R. Bras. Zootec. 42(4), 284-290.
Tatum J., DeWalt M., LeValley S., Savell J. and Williams F. (1998a). Relationship of feeder lamb frame size to feedlot gain and carcass yield and quality grades. J. Anim. Sci. 76, 435-440.
Tatum J., Samber J., Gillmore B., LeValley S. and Williams F. (1998b). Relationship of visual assessments of feeder lamb muscularity to differences in carcass yield traits. J. Anim. Sci. 76, 774-780.
Traoré A., Tamboura H., Kaboré A., Royo L., Fernandez I., Alvarez I., Sangaré M., Bouchel D., Poivey J., François D., Toguyeni A., Sawadogo L. and Goyache F. (2008).Multivariate characterization of morphological traits in Burkina Faso sheep. Small Rumin. Res.80(1), 62-67.
Vatankhah M. and Talebi M. (2008). Genetic parameters of body weight and fat-tail measurements in lambs. Small Rumin. Res. 75(1), 1-6.
Zhang L., Wu P., Xuan C., Liu Y. and Wu J. (2016). Advances in body size measurement and conformation appraisal for sheep. Transac. CSAE. 32(1), 190-197.
