Author/Authors :
Sanjabi، Mohammad Reza نويسنده Department of Animal and Poultry Science and Fisheries, Agricultural Institute, Iranian Research , , Rouzban Javanmardi، Javad نويسنده Expert of Research office - Agricultural Insurance Fund - Tehran , , Zandi، Mohammad نويسنده Department of Animal and Poultry Science and Fisheries, Agricultural Institute, Iranian Research Organization for Science and Technology, , , Khamoushi، Sepideh نويسنده Dairy Extension Division, National Dairy Research Institute, Karnal , , Rani، Kavita نويسنده Dairy Extension Division, National Dairy Research Institute, Karnal, India ,
Abstract :
ABSTRACT:Dairy industry is one of the major components of the agricultural sectorin Iran. It plays an important role in the national economy and in the socio-economic development of the country. This study was conducted in the Tehran province of Iran. 74 farms were selected on the basis of Probability Proportionate Sampling Technique. The significance of differences between two groups was evaluated with a t test, and statistical significance was accepted at P < 0.05. Results showed that the mean of milk production reached to 7364 (kg/year) per cow in 2009. The proportions of culled dairy cows were due mainly to involuntary culling which was significantly higher than voluntary culling (P < .05). The main findings were that Holstein farms in Tehran were doing well on almost all the fronts. The breeding, feeding, heeding and health-care was being maintained properly. Some key concern areas were identified like the incidence of diseases was well above the expected level. The culling percentage due to diseases was 10.14 percent against an expected percentage of 2.8. Another important area of concern was culling percentage due to low production, this was also well above the expected level. Awareness campaigns, training programmes and mass media interventions need to be effected to resolve the problems.
