Mineral Status of Feeds and Fodders in Rohtak District of Haryana Maan N.S., Mandal A.B.1, Yadav P.S.*, Lall D.2, Gupta P.C. Department of Animal Nutrition, CCS Haryana Agricultural University, Hisar-125 004, India. *Reprint request: Dr. P.S. Yadav, Tel.: +91-1662-45725; Fax: +91-1662-34952.
Present address: 1Central Avian Research Institute, Izatnagar-243 122, India. 2 Central Institute for Research on Buffaloes, Hisar-125001, India. Abstract Ten villages, representing Rohtak district of Haryana state, were selected to collect samples of feeds and fodders offered to dairy animals at random. Records of plane of feeding and disease prevalence were also collected. The samples were analysed for calcium (Ca), phosphorus (P), zinc (Zn), copper (Cu), iron (Fe) and Manganese (Mn) contents. The calcium and phosphorus contents in roughages and concentrates were within the normal range. These feedstuffs could meet 70 - 100% of the requirement of both Ca and P. The mean values for Zn content in wheat straw, berseem, oats, Phalaris minor, cottonseed, cottonseed cake, wheat and rapeseed meal cake was 22.6, 23.1, 22.9, 8.6, 42.8, 51.1, 37.9 and 50.3 μg/g DM, respectively. On an average 4.4 to 100% of feed samples had less than 40 μg Zn/g DM. Copper in wheat straw was 2.3, berseem 7.2, green oats 5.6, cotton seed 12.7 and its cake 14.9, wheat grain 11.1, rapeseed meal 13.8μg/g DM. About 84 to 100% of roughages and 8 to 28% of concentrate feedstuffs were deficient in Cu. Iron concentration in all the feeds (concentrates, dry roughages and green roughages) was found to be much higher than the recommended levels of 50 μg/g. The content of Mn in wheat straw, oats, berseem, cotton seed, cotton seed cake, wheat and rapeseed meal was 27.7, 54.5, 49.1, 44.6, 35.0, 33.0 and 29.8 μg/g DM, respectively. About 50% of the feed ingredients were found to be deficientin Mn content. The results showed that wheat straw was highly deficient in Zn, Cu and Mn. Green fodders were deficient in Zn and Cu but marginally in Mn. Concentrate feeds were deficient in Zn, Cu and Mn to varied extent. Top Key words Mineral, Composition, Feeds, Fodders, Tropical. Top |