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Indian Journal of Animal Nutrition
Year : 2009, Volume : 26, Issue : 3
First page : ( 247) Last page : ( 250)
Print ISSN : 0970-3209.

Effect of Pre Partum Bypass Fat Supplementation on the Performance of Crossbred Cows

Tyagi Nitin, Thakur S.S.1, Shelke S.K.

Dairy Cattle Nutrition Division, National Dairy Research Institute, Karnal-132 001 (Haryana) India

1Corresponding author: Tel: 0091-184-2259062; Mobile: 0091-9416484247; Fax: 0091-184-2250042; E-mail: sst_ndri@yahoo.co.in


Nineteen crossbred cows were divided in two groups based on Most Probable Production Ability (MPPA) and fed wheat straw, green maize fodder and concentrate mixture as per requirements (9 cows, MPPA 3441.32 kg, 2–4 lactation, control group G1) and the same ration along with bypass fat at 2.5% of total DMI (10 cows, MPPA 3457.2 kg, 2–4 lactation, treatment group G2). The cows of G2 group were supplemented bypass fat 30 days pre partum. The average DMI was 10.62 and 11.41(kg/d) in G1 and G2, respectively. The average CPI (kg/d) was 1.59 and 1.56 and TDNI (kg/d) was 7.11 and 7.41 in G1 and G2, respectively. In the first fortnight, the experimental animals gained 9.30 and 8.89 kg body weight, respectively in G1 and G2 while at the end of 2nd fortnight, the loss in weight was 58.13 and 59.56 kg, respectively. The average body weight of calves at the time of birth was 24.94 kg in G1 and 27.95 kg in G2, whereas successful calving percentage was higher in G2 (100%) than that of G1 (88.88%). The incidences of retention of foetal membranes, premature birth and still birth were less in G2 than in G1. It could be concluded from the present study that bypass fat supplementation @ 2.5 per cent of DMI during pre partum period to advanced pregnant cows increased the calf weight, decreased the incidences of retention of foetal membranes, still birth and premature birth in high yielding crossbred cows.



Bypass Fat, Pre partum, Crossbred Cows.


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