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2014, vol. 30, br. 2, str. 281-288
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Model za ocenu težine korišćenjem linearnih osobina na rođenju i zalučenju nigerijske autohtone rase svinja
Path coefficient model for assessment of weight using linear traits at birth and at weaning in Nigerian indigenous pig
aNasarawa State University, Keffi Shabu-Lafia campus, Animal Science Department, Faculty of Agriculture, Nigeria bAnimal Science Department, College of Agriculture, PMB Lafia, Nasarawa State, Nigeria
e-adresa: mosesdogah@yahoo.com
Sažetak
Direktni i indirektni efekti pojedinih varijabli (dužina tela (BL), visina krsta (RH), dužina krsta (RL), širina krsta (RV), širina plećke (SV), visina grebena (WH), obim grudi (HG) i dužina slabine (FL) uticaj na živu mase na rođenju i odlučenju nigerijske autohtone rase svinja, u polu intenzivnom sistemu držanja, su ispitivani pomoću analize pravca/puta. Rezultati analize ukazuju da je koeficijent korelacije između telesne težine i dužine tela pri rođenju najviši (0,59), dok je na odbijanja, širina krsta imala najveći koeficijent korelacije sa telesnom težinom (0,60). Odnosi su bili od niskog do visokog. Direktan efekat linearnih osobina na telesnu težinu na rođenju su bili najviši sa visiniom grebena i dužinom slabine, slično tome, obim grudi i dužina krsta imali su bolji direktan uticaj na telesnu težinu na odlučenju od drugih linearnih osobina. Rezultati pokazuju da postoji varijabilnost u odnosu između telesne težine i linearnih osobina sa uzrastom, slično tome, razvoj tkiva i kostiju igra značajnu ulogu u određivanju težine u autohtonih svinja. Tako selekcija na povećanje težine u odrasloj fazi grla se može bolje postići pri odbijanju, pružajući pravac za selekciju na povećanje težine u autohtonih svinja.
Abstract
Direct and indirect effects of some explanatory variables ((body length (BL), rump height (RH), rump length (RL) , rump width (RW) , shoulder width (SW), wither height (WH), heart girth (HG) and flank length (FL)) influence on live weight at birth and at weaning in Nigerian indigenous pigs, managed under semi intensive system were investigated using path analysis. Results of the analysis indicated that the correlation coefficient between body weight and body length at birth was highest (0.59) while at weaning, rump width had the highest correlation coefficient with body weight (0.60). The relationships were from low to high. The direct effect of linear traits to body weight at birth were highest with wither height and flank length similarly heart girth and rump length had better direct effect on body weight at weaning than other linear traits. The findings show that there is variability in relationship between body weight and linear traits with age, similarly both tissues and bone development play significant role in weight determination in the indigenous pigs. Thus selection for weight increase at adult phase can better be achieved at weaning, providing direction for selection towards increase weight in indigenous pigs.
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Reference
|
|
  
|
Alwin, D.F., Hauser, R.M. (1975) The Decomposition of Effects in Path Analysis. American Sociological Review, 40(1): 37
|
|
|
Cankaya, S., Yazgan, E., Kayaalp, G.T., Gocmez, Z., Serbester, U. (2008) Canonical correlation analysis for estimation of relationship between some body measurement at birth and six month period in Holstein Friesian calves. Journal of Animal and Veterinary Advances, 7, 8, 953-958
|
|
|
Gurbuz, F., Baspinar, E., Keskin, S., Mendes, M., Takindal, B. (1999) Path analysis technique 4. u: National Biostatistics meeting, 23-24
|
|
|
Heinrichs, A.J., Rogers, G.W., Cooper, J.B. (1992) Predicting body weight and wither height in Holstein heifers using body measurements. Journal of dairy science, 75(12): 3576-81
|
|
1
|
Jeonghoon, A. (2002) Beyond single equation regression analysis: Path analysis and multi-stage regression analysis. American Journal of Pharmaceutical Education, 66, 37-42
|
|
|
Mendes, M., Karabayir, A., Pala, A. (2005) Path analysis of the relationship between various body measurement s and live weight of American Bronze Turkey under three different lighting programs. Tarim Bilimleri: Dergiai, 11, 2, 184-188
|
|
|
Mota, D., Ramirez-Necoechea, R., Alonso-Spilsbury, M., Garcia-Contreras, C. (2003) Characterization of the productive performance in family pig farms located in Ayotzingo State of Mexico. LRRD, 14, 1
|
|
|
Na-Lampang, N.P. (2010) Morphological diversity of native pig in north east Thailand. u: 14th Asian-Australasian Association of Animal Production, Pingtung, Taiwan, Proceedings
|
|
1
|
Ncube, M., Dzama, K., Chimonyo, K., Kanengoni, A., Hamudikuwanda, H. (2003) Effect of boar genotype on reproductive performance of the local sows of Zimbabwe. Livestock research for Rural Development, 15, 2, 1-11
|
|
|
Okorie, J.U. (1978) A guide to livestock production in Nigeria. London: Mac Millian Ltd, 155
|
|
1 
|
Radović, Č., Petrović, M., Kosovac, O., Stanišić, N., Radojković, D., Mijatović, M. (2009) The effect of different fixed factors on pig carcass quality and meat traits. Biotechnology in Animal Husbandry, vol. 25, br. 3-4, str. 189-196
|
|
1
|
Radović, Č., Petrović, M., Živković, B., Kosovac, O., Radojković, D., Mijatović, M., Stojanović, Lj. (2007) Effect of different fixed factors on pig carcass quality traits. Biotechnology in Animal Husbandry, vol. 23, br. 1-2, str. 71-80
|
|
|
Shaibu, B., Ahiju, A., Bakshi, J.S. (1997) Nigerian National agricultural Research Strategy Plan 1996-2010. Department of Agricultural Science, Federal Ministry of Agriculture and Natural Resources
|
|
|
Smith, F.A., Brown, J.H., Valone, T.J. (1997) Path Analysis: A Critical Evaluation Using Long-Term Experimental Data. American Naturalist, 149(1): 29
|
|
|
Subalini, E., Silva, G., Demetawewa, C. (2010) Phenotypic Characterization and Production Performance of Village Pigs in Sri Lanka. Tropical Agricultural Research, 21(2): 198-208
|
|
|
Wilson, L.L., Egan, C.L., Terosky, T.L. (1997) Body measurements and body weights of special-fed Holstein veal calves. Journal of dairy science, 80(11): 3077-82
|
|
|
Wu, Z., Ma, X., Tian, S., Wu, S., Li, C., Guan, L., Li, W., Wang, H. (2008) Path analysis on body weight, body dimension and ear type of Saibei rabbit. u: 9th World Rabbit Congress, Italy, Proceedings
|
|
|
Yakubu, A., Salako, A.E. (2009) Path coefficient analysis of body weight and morphological traits of Nigeria indigenous chickens. Egyptian Journal of Poultry Science, 29, 111, 837-50
|
|
|
|
|