EFFECT OF MILKING INTERVALS ON MILK PRODUCTION, COMPOSITION AND SOMATIC CELL COUNTS IN SAHIWAL COWS
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 61
Abstract
The present study was conducted to find out the effect of milking intervals on milking attributes like milk let down time, milking time, milk flow rate, milk yield, composition and somatic cell count in Sahiwal cows. The experiment was carried out on 88 lactating healthy Sahiwal cows in hot- humid (n=38) and winter (n=50) season. All the animals were managed in loose housing system and were machine milked during morning, noon and evening time. Milking attributes like milk letdown time, milking time and milking rate was determined during milking time in each season. The aliquots of milk samples from individual animal were composited and fat, protein, lactose, SNF and total solids were measured. Somatic cells present in the pooled milk samples from individual animals were estimated. Milk let down time was significantly lower (P<0.05) in morning milking as compared to evening milking in hot humid season. Milking time and total milking time was significantly higher (P<0.05) in morning milking as compare to noon and evening milking in winter season. Milk flow rate was significantly higher (P<0.05) in morning milking as compare to noon and evening milkings in both summer and winter season. Milk yield was significantly higher (P<0.05) in morning milking as compare to noon and evening milking in both hot-humid and winter season in Sahiwal cows milked three times in a day. Fat % was significantly lower in morning milking than the evening milking in both hot-humid (P<0.01) and winter season (P<0.05) in Sahiwal cows milked three times a day. SNF content was higher (P<0.05) in morning milking as compare to noon milking in both hot-humid and winter season. However, fat. % of noon milking was higher (P<0.05) than the morning milking and lower than evening milking but the difference was non-significant in both seasons in Sahiwal cow milked three times in a day. Variation of TS % was non-significant between morning, noon and evening milking in hot-humid season but TS % was significantly (P<0.05) higher in evening milking as compare to noon milking in winter season. Protein content was higher in evening milking as compare to morning and noon milking in both hot-humid (P<0.01) and winter season (P<0.05). Lactose % varied non-significantly between different milking intervals in the cows milked three times a day. SCC was lower (P<0.05) in morning milking as compared to noon and evening milking in hot-humid season. In winter season SCC was significantly (P<0.05) lower in morning milking as compared to noon milking but varied non-significantly (P<0.05) with evening milking. Milking intervals had significant impact on milk let down time, milk flow rate, milk yield, fat %, SNF %, TS %, protein % and SCC.
Authors and Affiliations
KULADIP PRAKASH SHINDE
Keywords
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