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Investigations of factors that influence oestrus expression in dairy cattle

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Figure

Figure 2. 1. The bovine oestrous cycle usually lasts 18 to 24 days so normal, non-
Figure 2. 2. Hormonal change and follicular waves throughout the oestrous cycle in cattle
Figure 2. 3. The cows which are shaded red exhibit oestrous behavioural signs including primary (i) and secondary signs (a-h) toward the black and white cow, adapted from (DairyCo - Pd+ Section 6 - Managing heat detection - AHDB Dairy)
Table 2. 1. Pheromones compounds found in a variety of body fluids in oestrus cattle.
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