Effet de la température sur la production laitière dans la région de Sétif

Abstract

This study analyzes the effect of climate mainly temperature and relative humidity on milk production in terms of quantity and quality in the region of Setif. Research has concerned the monitoring of milk production of 12 cows imported from Holstein farms along three pilots are: Khababa, Laghmari Makhloufi and localized in two different bioclimatic zones in the region of Setif. The results showed that temperature significantly influences milk production quantity and quality physicochemical and microbiological also moisture significantly affects especially where the temperature-humidity index (THI) is above 72. There 's a remarkable variation of milk production, their physico-chemical essentially the fat between the three pilot farms, at farm quantity Makhloufi occupies the first place, last place is given to the farm Khababa; level of quality fat is considered to milk the farm Khababa the richest in this respect. For microbiological quality, it was found that the three pilot farms remains far hygiene standards nationally and internationally, especially farm Khababa.