Effects of Different Types of the Cowshed on Development of Chinese Holstein Replacement Heifers in Cold Area
Author(s): ZHU Bao-long, Turigenbaiyila
Pages: 1-5
Year: 2016 Issue: 4
Journal: China Dairy Cattle
Keyword: Different types of cowshed; Replacement heifers; Development;
Abstract: Totally 152 healthy replacement heifers under two different types of cowshed, including 61 heifers raised in simple outdoor shelter (group L) and 91 heifers raised in fully enclosed barn (group F), were selected and tracked measurement of body height, body length and chest girth to the age at ifrst breeding in Hohhot area to study the effects of different types of cowshed on the development of replacement heifers and to provide a scientiifc basis for production management. Two groups of test heifers’ raising management, diet composition, epidemic prevention and standard of ifrst breeding were consistent, except the type of cowshed. The body height, chest girth and body length of group L and F at the beginning have no significant difference (P>0.05). At the end of test, the corresponding index were 126.26 and 128.53 cm (P<0.01), 173.24 and 175.50 cm (0.1>P>0.05), 142.63 and 144.34 cm (P<0.01), respectively. The cumulative growth during the whole test of corresponding index of group F were 1.72cm(P<0.05), 5.34cm (P<0.01) and 2.10 cm (0.1>P>0.05) higher than group L, respectively. In summary, fully enclosed barn have positive effects on replacement heifers before the age at ifrst breeding.
Pages: 1-5
Year: 2016 Issue: 4
Journal: China Dairy Cattle
Keyword: Different types of cowshed; Replacement heifers; Development;
Abstract: Totally 152 healthy replacement heifers under two different types of cowshed, including 61 heifers raised in simple outdoor shelter (group L) and 91 heifers raised in fully enclosed barn (group F), were selected and tracked measurement of body height, body length and chest girth to the age at ifrst breeding in Hohhot area to study the effects of different types of cowshed on the development of replacement heifers and to provide a scientiifc basis for production management. Two groups of test heifers’ raising management, diet composition, epidemic prevention and standard of ifrst breeding were consistent, except the type of cowshed. The body height, chest girth and body length of group L and F at the beginning have no significant difference (P>0.05). At the end of test, the corresponding index were 126.26 and 128.53 cm (P<0.01), 173.24 and 175.50 cm (0.1>P>0.05), 142.63 and 144.34 cm (P<0.01), respectively. The cumulative growth during the whole test of corresponding index of group F were 1.72cm(P<0.05), 5.34cm (P<0.01) and 2.10 cm (0.1>P>0.05) higher than group L, respectively. In summary, fully enclosed barn have positive effects on replacement heifers before the age at ifrst breeding.
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