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Management for improved fertility and lifetime productivity in grazing dairy cows: latest NZ research – Claire Phyn, Dairy NZ

Claire Phyn, senior scientist at DairyNZ presented about an 8 year research programme funded by MBIE and NZ dairy farmers through DairyNZ Inc. It aimed to provide management and genetic solutions to improve cow health, fertility and longevity. Claire reported about 1. Effect of carbohydrate type (starch vs fibre) on reproduction 2. Hyperketonaemia (subclinical ketosis) and 3. Feeding synthetic zeolite pre-calving

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Mycoplasma bovis – a personal US experience, Sue Macky

In the 1970’s in mid-west US, most cows were kept in tie stall barns where physical contact between cows and the spread of M bovis were very limited.  The death rate of young calves was reduced with the move to individual hutches and no physical contact, and pasteurising milk.  In the 1980’s if mastitis didn’t

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Feeding Fodder Beet to Cows – Rumen pH during transition from pasture.

In this session Dr. Garry Waghorn updated the membership on research pertaining to feeding fodder beet to cows.  Some of the key messages include: Not all fodder beets are created equally; nutritional composition varies considerably.  Feed testing is warranted. There are still a lot of unknowns when it comes to how fodder beet behaves within the rumen.  Individual cows with rumen

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Understanding lameness in pasture-based dairy farms, Neil Chesterton

There are 5 key points to success in lameness control: Record keeping – both incidence and type Early detection and prompt effective treatment Prevention of damage – cow flow and cow comfort Hygiene – low infection pressure Good horn quality and foot shape – good nutrition and genetics The main lesions for cows on pasture

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Johne’s Disease in New Zealand – Noemi Locher

Noemi shares work from her masters thesis about Johne’s disease in cattle comparing analysis from New Zealand and Germany. Some key themes from her work include: calving management needs to be more hygienic – ‘healthy’ milk is an essential culled animals should not end up “in the hole” clinically suspicious animals need to be examined

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