Evaluation of Nutritional and chemical quality of raw milk from household dairy farms in Hathazari upazilla, Chattogram, Bangladesh

Abstract

Milk is considered to be a nearly complete food since milk contains nutrients like high-quality proteins, lipids, carbohydrate, vitamins and minerals far more than any other single food. (Neumann et al.,2002). In chattogram district, the upazilla of Hathazari is home to more than thousand people. Four sources of fluid milk are available in the Hathazari to suit the needs of such a huge human population: farm produced milk, vendor-supplied farm milk, vendor supplied rural milk, and market milk of various brands. But maximum farmers have their own dairy farm to produce milk for their need. Thus, to assess the nutritional value of raw milk from dairy farms in Hathazari, the current study was conducted from February 22 to march 16, 2023. Some areas like Fatika road,11 mile, foteyabad, kachari road, sarkarhat were selected to collect milk samples. In order to evaluate the physical (specific gravity) and chemical (% of butter fat, solids-not fat, total solids, protein, and water) properties of milk samples and analyse them using the I.S.I. (1984) method for identifying the nutritional and chemical parameters, a total of 15 samples, 3 from each entry point were collected. The results of the study show that practically some of the samples had very poor nutritional quality. 50% of the samples had adulteration in the water. More water adulteration is done both to improve milk volume and to generate more money. Raw cow milk means milk from dairy cow not less than 3 days after parturition and shall not contain colostrum. Milk shall not be either addition to it or extraction from it, or subject to any process except cooling.