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Effectiveness of different strategies to prevent from heat stress in a group of dairy farms located in the Province of Padova

Published: February 2, 2021
By: Flaviana Gottardo 1, Martina Dorigo 1, Paolo Paparella 2, Cristiano Ossensi 1, Giulio Cozzi 1. / 1 Dipartimento di Scienze Animali. Università di Padova, Italy; 2 Associazione Provinciale Allevatori. Padova, Italy.
Summary

Heat stress during the summer season is an important factor which can impair dairy cows physiology and productivity. A survey was carried out on a sample of 30 dairy farms of the Province of Padova to assess the effectiveness of different strategies for heat stress control. All farms used a fan cooling system but in those were a sprinkler device was also operating an increased milk yield was observed (+5.0%). Cows receiving the diet in two daily distributions (morning and evening) increased DM intake (+9.0%) and milk yield (+15.0%) in comparison to animals fed once a day. No difference, instead, were observed in farms where cows were fed once a day in the morning or in the evening. A positive milk response (+8.1%) was recorded in farms equipped with wide waterers at the exit of the milking parlour.

Key words: Dairy cow, Heat Stress, Cooling devices, Feeding management.

 

Abstract published in Italian Journal of Animal Science, 4:sup3, 132-135, DOI:10.4081/ijas.2005.3s.132.

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