The Effect of Sow Metabolic Status, Boar Exposure and Timing of Piglet Separation on Lactational Oestrus Induction
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چکیده
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منابع مشابه
Effects of boar stimuli on the follicular phase and on oestrous behaviour in sows.
This review describes the role of boar stimuli in receptive behaviour, and the influence of boar stimuli during the follicular phase. Receptive behaviour (standing response) in an oestrous sow is elicited by boar stimuli, which can be olfactory, auditory, tactile, or visual. The relative importance of these stimuli is not clear. Individually, olfactory and tactile stimuli elicit a standing resp...
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To investigate endocrine mechanisms associated with the occasional occurrence of fertile oestrus during lactation in the high prolific Chinese Meishan (MS) breed, the incidence of oestrus and changes in plasma luteinizing hormone (LH) levels before and after oestradiol benzoate (OB, 15 micrograms/kg body weight) administration on day 22 was compared in 4 MS and 6 Large White (LW) sows. All sows...
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This paper suggests a method for automatic detection of sows returning to 1 oestrus in the gestation department. The detection is based on monitoring of 2 sows’ visits to a boar, where the duration and frequency of visits are modelled 3 separately and subsequently combined. The hypothesis is that it is possible 4 to reduce the response time and the number of false alarms compared to 5 previousl...
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