THE EFFECT OF CALVING TIME (MONTH & SEASON) ON AVERAGE OF FIRST ESTRUS, FIRST SERVICE AFTER PARTURATION AND AVERAGE OF DAYS OPEN IN HOLSTEIN COWS

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DIANAT V.; BEHESHTI R.

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Paper Information

Journal: JOURNAL OF ANIMAL SCIENCE Year:2010 | Volume:2 | Issue:2 Page(s): 79-84

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Title

THE EFFECT OF CALVING TIME (MONTH & SEASON) ON AVERAGE OF FIRST ESTRUS, FIRST SERVICE AFTER PARTURATION AND AVERAGE OF DAYS OPEN IN HOLSTEIN COWS

Author(s)

DIANAT V. | BEHESHTI R. | Issue Writer Certificate

Keywords

CALVING SEASONQ3

DAYS OPENQ2

FIRST ESTRUSQ3

HOLSTEINQ3

FIRST INSEMINATIONQ2

COWQ3

Abstract

In this research, after numerous visits from dairy cattle farms in east and west Azarbayjan and Ardebil provinces (which had optimal nutritional and hygienic status), data were collected from 6396 COW. Animals were divided into 12 groups (based on month of birth) and 4 groups (based on season of birth). According to collected data about the average of FIRST ESTRUS and of insemination after parturation and average of DAYS OPEN in each group, effect of month and season of birth were studied. Results showed that there is no significant statistical differences in average of FIRST ESTRUS and FIRST INSEMINATION between groups (P>0.05), but we found a significant difference between groups concerning the DAYS OPEN according to month (p<0.05) and season of birth (P<0.01).Our data from HOLSTEIN COW were showed that month and season of birth had no effect on average of FIRST ESTRUS and insemination, but it effects on average of DAYS OPEN.

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APA: Copy

DIANAT, V., & BEHESHTI, R.. (2010). THE EFFECT OF CALVING TIME (MONTH & SEASON) ON AVERAGE OF FIRST ESTRUS, FIRST SERVICE AFTER PARTURATION AND AVERAGE OF DAYS OPEN IN HOLSTEIN COWS. JOURNAL OF ANIMAL SCIENCE, 2(2), 79-84. SID. https://sid.ir/paper/185948/en

Vancouver: Copy

DIANAT V., BEHESHTI R.. THE EFFECT OF CALVING TIME (MONTH & SEASON) ON AVERAGE OF FIRST ESTRUS, FIRST SERVICE AFTER PARTURATION AND AVERAGE OF DAYS OPEN IN HOLSTEIN COWS. JOURNAL OF ANIMAL SCIENCE[Internet]. 2010;2(2):79-84. Available from: https://sid.ir/paper/185948/en

IEEE: Copy

V. DIANAT, and R. BEHESHTI, “THE EFFECT OF CALVING TIME (MONTH & SEASON) ON AVERAGE OF FIRST ESTRUS, FIRST SERVICE AFTER PARTURATION AND AVERAGE OF DAYS OPEN IN HOLSTEIN COWS,” JOURNAL OF ANIMAL SCIENCE, vol. 2, no. 2, pp. 79–84, 2010, [Online]. Available: https://sid.ir/paper/185948/en

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