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0.05). According to the results, the apparent intestinal digestibility of protein, rumen undegradable protein of the control treatment and treatment containing tasco were not different (P>0.05). Rumen-respiratory rate, rumenal rate and body temperature were not significant between treatments (P>0.05). There was no significant difference between the two treatments for time of eating, rumination, rest and total chewing activity (P>0.05). Tasco had no significant effect on rumen pH and ammonia nitrogen (P>0.05). Therefore results revealed that in the range temperature (avereage temperature was 35.05 celsius) of this experiment, the animals apparently have adapted to environment conditions and tasco has no effect on them.]]>
p. 19−32
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p. 33−43
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p. 44−53
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p. 54−60
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p. 61−67
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p. 68−76
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p. 77−85
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p. 86−93
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0.05). The level of magnesium and zinc significantly (P<0.05), and the level of copper partially (P<0.05) increased in delivered cows, but calcium reduction was potentiated in this group (P<0.05). Ferrous was the unique element which partially increased during gestational period (P<0.05). The reduction of minerals during gestational period specifically in heavy cattle may be related to the increased need of the mother and fetus, or the probability of minerals interaction. ]]>
p. 94−101
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p. 102−112
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p. 113−118
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