Comparative performance of Holstein-Friesian and Holstein-Friesian X Hariana cows of forage based ration. I. Nutrition utilization on forage based ration

Sehgal, V.C.; Joshi, D.C.

Indian Journal of Dairy Science 36(1): 15-20

1983


ISSN/ISBN: 0019-5146
Accession: 001321314

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Abstract
For 180 days 6 Holstein-Friesian (HF) and 6 HF X Haryana cows were fed according to NRC (1971) recommendations, with maize or berseem forage to appetite and restricted amounts of straw and concentrate, and minerals. There were no significant differences between breed groups in feed intake, weight gain (although crossbreds averaged 240 g/day and HF cows 150 g/day), or digestibilities of DM or N-free extract; DM digestibility was higher when measured in mid-lactation than in early or late lactation. Crude protein digestibility and N-retention were higher for HF than for crossbreds, and protein digestibility was lowest in late lactation. Av. daily 4%-fat-corrected milk yield decreased during the trial from 8.8 to 4.6 kg for HF cows and from 10.2 to 6.8 for crossbreds; crossbreds gave more milk than HF cows (P < 0.01), probably because of the poorer heat resistance of the HF cows. Balance studies showed that Ca, P and other nutrients were adequate throughout.