A STUDY ON THE RELATIONSHIP OF BODY CONDITION SCORE, UDDER CONFORMATION WITH MILK YIELD, FAT AND SOLIDS-NOT-FAT PERCENT IN MURRAH GRADED BUFFALOES UNDER FIELD CONDITIONS
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Date
2019-03
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SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517502. (A.P.) INDIA
Abstract
The present experiment was a study on the relationship of Body Condition Score,
Udder Conformation with milk yield, fat and solids-not-fat percent in murrah graded
buffaloes under field conditions. In this murrah graded buffaloes from different commercial
farms of Guntur and Krishna districts were selected. Total of 150 murrah graded buffaloes of
different parities (1st to 6th parities) were selected. Various parameters like Body Condition
Score, Udder Length, Udder Width, Udder Depth, teat length, teat diameter and parity
related to average milk yield, fat per cent, SNF per cent was taken into consideration for the
present study and a correlated study of Body Condition Score, udder morphology and the
milk yield was studied. The different body condition scores in graded murrah buffaloes were studied and the selected animals were divided in to four groups 2.5-2.99, 3.0-3.49, 3.5-3.99, 4.0-4.49. The mean BCS values of 2.5-2.99, 3.0-3.49, 3.5-3.99, 4.0-4.49 were 2.62, 3.25, 3.56 and 4.25, respectively. Highest milk yield was recorded in second month of lactation and lowest in first month of lactation with 9.445±0.15 and 6.18±0.08 kg per day, respectively. The buffaloes with BCS 4.0-4.49 yielded higher milk yield when compared to other groups. Highest fat and SNF per cent was observed in the animals with BCS 4.0-4.49 when compared with others. The BCS had showed high positive correlation with SNF (0.44) and milk yield (0.41). In the udder morphology strong variation exists but occurrence of bowl shaped udder and cylindrical shaped teats were maximum and pendulous shaped udder yielded higher milk production. The mean±S.E of udder length, udder width and udder depth of different udder shapes ranged from 47.44±0.37 to 51.55±0.90 cm, 41.81±1.18 to 46.15±0.94 cm and 11.67±0.05 to 12.3±0.16 cm, respectively. The overall average udder length, udder width and udder depth were 48.1±0.33, 42.80±0.32 and 11.80±0.05 cm, respectively. Maximum udder length, udder width and udder depth were found in pendulous shaped udder. The overall mean(±S.E) of teat lengths of right fore, left fore, right rear, left fore were 5.42±0.02, 5.60±0.02, 5.74±0.03 and 5.96±0.02 cm, respectively. Similarly the overall mean(±S.E) of diameter of the teat in right fore, left fore, right rear, left rear were 2.48±0.01, 2.60±0.01, 2.72±0.01 and 2.87±0.02 cm, respectively. The pendulous shaped udder and funnel shaped teats yielded maximum average daily milk yield. The average daily milk yield, milk fat and SNF per cent showed positive correlation with all the udder and teat measurements. Milk yield showed high positive correlation with left rear teat diameter (0.60), udder length (0.62) and udder width (0.59). Milk fat per cent showed highest correlation with udder depth (0.48), udder width (0.44) and udder length (0.42). SNF per cent showed highest correlation with udder width (0.53), udder length (0.49) and udder depth (0.46). There was an increase in udder length, udder width and from 2nd parity to 6th parity
but there is decrease from 1st parity to 2nd parity. Udder depth increased from 1st parity to 6th
parity. Average daily milk yield increased from 1st to 6th parity. There was an increase in fat
and SNF per cent from 1st to 5th parity and there is decrease from 6th parity. High positive
correlation was observed between parity and milk yield and SNF per cent.
It was found that murrah graded buffaloes with pendulous udders and funnel shaped
teats yielded maximum milk. All the udder morphological characteristics showed positive
correlation with average milk yield, fat and SNF per cent. BCS and udder measurements
showed positive correlation with average milk yield, fat and SNF per cent in murrah graded
buffaloes.
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