Effect of Pregnancy on Lactation Milk Value in Dairy Buffaloes

摘要: Buffalo are a major source of milk production, contributing 12.1% in the World and 38.0% Asia. The buffaloes kept under peri-urban farming systems to produce for urban populations. Breeding is delayed these herds get more economic benefit because farmers believe that pregnancy decreases production. lactation value has been studied this paper as an indicator. Complete yield records 3,304 was collected from group state farms. Economic traits including yield, length, calving interval (CI), dry period per day (MYPDCI) were derived data. animals grouped according parity number (1-3), service (Gl G4, conceiving during 300 days post calving) levels (HMY>2,500; MMY 2,001-2,500; LMY 1,500-2,000 liters/ lactation). To study effect on composition research trial conducted at medium size private dairy farm, using forty lactating three four groups, described already. Milk sampled alternate weeks analyzed fat protein contents (%). For quantifying produced period, corrected (VCM) determined converted (LMV). Group means compared various parameters. Highest (2,836.50±15.68 liters/lactation) recorded HMY G4 while lowest 1,657.04±18.34 liters/lactation found G1. Lactation significantly increased with extending period. shortest HMY, 1, Gl longest 2, MMY, G4.The CI LMY, 3, buffaloes. showed highest MYPDCI (6.53±0.17 vs. 2.76±0.04 liter/day) VCM decreased conception. This decreasing trend higher respect total but decrease smaller due increasing milk. gap between production classes reduced based CI. LMV consistent decline all groups. suggests conception, showing low, moderate high yielding There coherent declining pattern delaying associated prolonged An animal later stage financial returns 24 27% those earlier.