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Chapter 14,552

Main production indices in crossbred Jersey x Romanian Brown cows in submountainous regions of Arges

Zavoi, I.; Et Al.

Lucr. stiint. Inst. agron. N. Balcescu Ser. C. 12: 1969, 43-51

1970


Accession: 014551378

In 34 Romanian Brown (R.B.) and 40 Jeney x R.B. in the 2nd lactation, body weight averaged 496.5 and 490.2 kg, lactation duration 307.5 and 294.8 days, milk yield 3209.8 and 2930.2 kg, fat percentage 3.6 and 4.08 (P<0.05), protein percentage 3.56 and 3.92 (P<0.05), calving interval 442 and 378 days,...285 calvinginterval+365xlOO and fertility index (285-calving internal+365x100/285) 80.0 and 95.4%.

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