• Volume 9, Issue 3

      March 1939,   pages  117-150

    • A study of the effect of different types of rations on the quality of milk, milk yield and the general condition of milch buffaloes

      D V Bal S K Misra

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      1. Amongst the localGaolies and cultivators there is a belief that if milch animals are fed with oil-cakes instead of cotton seed, there is a deterioration in the quality of the milk although the milk yield may remain unaffected.

      2. Some feeding experiments were therefore conducted to test the effect of two different types of rations on the milch cattle (buffaloes), one consisting of groundnut cake in combination withtur chuni andjuar meal and the other consisting of cotton seed in combination with linseed-cake andtur chuni.

      3. Results obtained show the following:-

      1. Inclusion of cotton seed in the ration fed to which buffaloe does not show any particular advantage over a ration consisting of groundnut cake andjuar meal, in so far as the general health and individual weights of the animals, and of the calves at birth, are concerned.

      2. Average daily milk yields of the various animals were neither adversely affected nor particularly improved by the exclusion or inclusion of cotton seed in their daily diet and no characteristic variations in the percentage of fat in the milk were observed. These results are significant as they definitely show that the quality (commonly understood as the percentage of fat) of the milk is not in any way lowered by the exclusion of cotton seed from the diet,

      3. Cotton seed, however, significantly affects the characteristics of the butter fat by increasing its melting point, and by lowering the proportion of the volatile water-soluble and insoluble fatty acids contained in it.

      4. These results further establish the important fact that market samples of genuine butter andghee should ordinarily give a much higher Reichert-Meissl value than the minimum of 19.0 fixed under the C.P. Prevention of Adulteration Act of 1919, and in this respect they therefore confirm the results previously obtained by Plymen.1

    • The proteins of Bajri (Pennisetum typhoideum)

      V S Abhyankar W V Kotastane N Narayana

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      Bajri contains about two-fifths of its proteins as a prolamin and one-fifth as a globulin. The latter can be fractionated into two proteins, a small part A coagulating at 43°–45° C. and the larger part B coagulating at 83°–85° C.

      The nitrogen distribution of prolamin and total globulin and its two fractions, globulin A and globulin B, have been studied and essential amino acids determined. Globulin A is richer in cystine and histidine but is poorer in lysine and arginine, the latter being half that in globulin B.

      The prolamin compares favourably with, the prolamins of other cereals. Being rich in tryptophane and cystine it should possess a good nutritive value and be a useful complementary protein to the pulse proteins which are poor in these amino-acids.

    • Studies on physico-chemical relations of soil and water - I. Water retentive force of soil as influenced by chemical fertilisers

      B N Singh M L Mehta

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      The paper deals with effects of ammonium sulphate (N), potassium sulphate (K) and double superphosphate (P), singly and in combinations (total 8 treatments) on the water retentive force of the soil at different moisture contents.

      As the moisture content of the soil decreases the water retentive force of the soil increases. The changes in this force are less at higher moisture percentages while large changes are noted at lower moisture contents.

      K has the least effect in reducing the water retentive force as soil is being depleted of its moisture, and P both singly and in combinations has the best effect in as far as it tends to keep the forces steady.

      The fertilisers influence both the wilting coefficient and water retentive force of soils (Table III). In general the fertilisers bringing about increase, in wilting coefficient also bring about a corresponding decrease in water retentive force.

      The gradient of increase in water retentive force of soils from high to low moisture content is higher in K treated soils and low in P treated soils (P, PN and KPN). This necessarily calls for drastic changes in the osmotic relations of the root cells of plants in K treated soils if the plants have to maintain a proper water balance.

      It is concluded that a combination of P and N is the best treatment as far as water relations of plants are concerned for the proper growth and yield of crops under Indian conditions.

    • The myxophyceæ of the Bihar Province, India—i

      C Suryaprakasa Rao

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