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The agricultural production capacity of "HautCheliff" plain (located in semi-arid zone of northern Algeria) is totally dependent on water resources and their mobilization in the irrigated (receive an average rainfall of between 300mmto 400 mm year).The breeding present in the region is nevertheless based on rain fed agriculture. Dairy farms in production are more than 90% and consist of improved dairy breeds(their introduction began dice colonial and continues to this day).The objective of our study is to analyze the various constraints related to the production of milk, by the control and monitoring of a few dairy farms. For this, we have selected (at random), 15 farms among the 72dairyfarmsspecialized. The 15 farms are all situated in the plain area of "Haut Cheliff", they were selected on the stability of the dairy activity and willingness to cooperate breeders. These farms deliver all their production to two dairies in the district. Performance and modes of milk production in the 15 stables were studied from April 2007 to July 2009. Farms studied contain 220 dairy cows. An assessment of technical management of dairy herds was conducted for each farm for 24 months. Cattle herd composition and proportion of cows in the whole herd was registered. Performance of milk production, reproduction and quantities of fodder distributed per cow were measured monthly at each passage. The average milk production was 9.78 kg per cow per day. Feeding was heavily dependent on inputs of concentrates. The average interval between calvings was 351 days and the average interval from calving to mating was 74 days.

Djermoun A.,University of Hassiba Ben Bouali Chlef | Chehat F.,Ecole nationale superieure Agronomique dEl harrach ENSA
Livestock Research for Rural Development | Year: 2010

The traffic pattern of milk, often described as informal by the public authorities, is proved in a survey to represent different types of breeders in both the high and medium basin of Cheliff. It is very dynamic and drains large quantities ofmilk up to 25% of production in the region.The survey shows the types of integration between the formal and informal channels, reflecting their complementarities. In this precise context, the informal system appears to be a real system of social and economic organization by ensuring coordination with the traditional market by forming reciprocal agreements based on trust and contractual oral relationships despite some uncertainty about the effects on the safety of the consumer.

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