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Figure 3 | Veterinary Research

Figure 3

From: Quantification of the increase in the frequency of early calving associated with late exposure to bluetongue virus serotype 8 in dairy cows: implications for syndromic surveillance

Figure 3

Categories of exposure during gestation depending on the stage of pregnancy at the date of exposure (observed or interpolated). The values considered corresponded to multiparous Holstein cows (time intervals for other breeds and parity in Additional file 1). The histogram represents the distribution of gestation lengths for multiparous Holstein cows, with the gray area corresponding to early calving (defined as the interval between the expected percentile 1 and 25 of the Gaussian distributions of normal gestation lengths).

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