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The correlation between body measurements ... Table 3. Body development of Balkan goats depending on the order of lactation Order of lactation N Height to withers M SD Body length M SD Breast width M SD Breast depth M SD Body mass M SD L1 81 63.38 2.66 65.81 3.29 15.87 0.87 27.75 1.36 30.75 3.97 L2 69 66.18 3.05 70.00 3.75 16.65 1.17 29.53 2.01 36.86 4.77 L3 71 67.71 2.97 72.00 3.26 17.26 1.27 30.71 1.36 41.85 5.68 L4 69 68.26 2.4 72.45 3.23 17.72 1.45 31.94 1.69 45.02 5.72 Average 290 66.27 3.38 69.90 4.32 16.84 1.38 29.90 2.25 38.32 7.45 Legend: M = Average, SD = Standard deviation In regard to body mass, variation of the average value according to lactation was more distinct (5,72%) in fourth compared to the first lactation (3,97%). In regard to data obtained on the average body mass of goats in the fourth lactation (45,02 kg), it is obvious that it is higher in average than the body mass of goats in the first lactation by approx. 15 kg. Low body mass of goats, primarily in the first lactation, is partially consequence of worsle conditions relating to nutrition and care, especially of progeny which are introduced to breeding with unfinished growth and insufficient body mass, and these consequences are suffered by animals all their life (Memiši 2000; Khan et al., 2006). Obtained values for certain body measures in studied population of Domestic Balkan goat are at the level of results obtained by Khan et al. (2006) for body mass, height to withers and body length for Bettal goat breed reared in pakistan, as well as Ahmed et al. (2004) for Barki goats in Egypt. Higher values for measures of body development compared to our study are stated by Helal (2009) for Damaskus breed goats reared in Egypt. Table 4 presents results of the variance analysis of the effect of order of lactation on milk performance and body development measures in Balkan goats. Table 4. The effect of order of lactation on variability of traits Trait Sum of the square of model Degree of fredoom of the model Mean of the square of model Sum of the square of the error Degree of fredoom of the error Mean of the square of error 221 F p Duration of lactation 3425.8 3 1141.94 204951.5 286 716.614 1.59 ns HW 1098.3 3 366.09 2222.5 286 7.771 47.11 *** CL 2119.7 3 706.56 3285.6 286 11.488 61.50 *** BW 144.5 3 48.17 411.2 286 1.438 33.50 *** BD 719.8 3 239.93 750.7 286 2.625 91.41 *** RW 83.3 3 27.77 371.8 286 1.300 21.36 *** BM 8763.8 3 2921.28 7307.2 286 25.550 114.33 *** Milk yield 127964.5 3 42654.82 506542.6 286 1771.128 24.08 *** Legend: Significance *** P
222 M Žujović et al. Differences in milk performance traits and body development measures established under the influence of order of lactation were highly significant at the level of P0,05). Table 5 presents data on the magnitude of correlation of studied traits of body development and milk performance in Domestic Balkan goats. Between all studied traits, with the exception of duaration of lactation period and certain measures of body development, statistically significant correlation was determined (P
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UDC 636 ISSN 1450-9156 VOL 27, 2 Fo
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Biotechnology in Animal Husbandry 2
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128 V. Pantelić et al. effects of
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Table 1. Feeding regime durring the
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The effect of crossing of domestic
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The effect of crossing of domestic
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152 Concentration of progesterone (
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154 J. Pleadin et al. Decision 2002
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156 J. Pleadin et al. Koncentacije
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158 J. Pleadin et al. CACCIATORE G.
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160 Efficiency of bovine IGF -I gen
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Study of biochemical polymorphism .
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Physiological aspects of behaviour
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Instruction for authors Papers for
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PETROVIĆ D.M., GUTIĆ M., BOGOSAVL
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Registration fee Registration fee i
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