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Fig. 4 | Journal of Animal Science and Biotechnology

Fig. 4

From: Oxytocin in pig seminal plasma is positively related with in vivo fertility of inseminated sows

Fig. 4

Relationship between the concentration of oxytocin in seminal plasma (SP-OXT) and in vivo fertility outcomes of boars used in artificial insemination programs (n = 18). A-B: Bar charts showing the deviation in farrowing rate (A) and litter size (B), measured in terms of direct boar effect, for each of the boars under evaluation. Deviations are with respect to the breed means represented by the value 0 on the X-axis. Boars were grouped (hierarchical clustering, P < 0.001) into three groups by having positive (green), without (grey) or negative (red) deviation. C-D: Box-and-whisker plot showing the SP concentrations of OXT in the ejaculates from boars showing positive, without and negative deviation in farrowing rate (FR; C) and litter size (LS, D). Boxes enclose the 25th and 75th percentiles; the whiskers extend to the 5th and 95th percentiles and the line is the median. a-b indicates significant differences (P < 0.05) between groups of boars in the SP concentration of OXT

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