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The nutritive value of Pani-cum maximum (guinea grass) for cattle and water buffaloes in the tropics

Johnson, W.L.

Dissertation Abstracts B, The Sciences and Engineering 27: 4193

1967


ISSN/ISBN: 0420-073X
Accession: 014758378

Yield, chemical composition, digestibility and intake were studied at the University of the Philippines. Fresh guinea grass (Panicum maximum) was given to appetite to Holstein and Red Sindhi cattle and water buffaloes and for 75 days to lactating cows. Digestible protein decreased from about 7 to less than 3% between one and 3 months growth stage, at any season. Energy value expressed as total digestible nutrients (TDN) was constant at different stages of maturity in the wet season, 50 to 53% for Holstein and Red Sindhi cattle, but declined from 56 to 46% between one and 3 months in the early dry season. Digestibilities of dry matter (DM) and crude fibre were significantly higher for water buffaloes than for Holstein cattle. Calculated TDN for buffaloes was on average 8% higher than for cattle. Average intake of DM was 2.1 kg per 100 kg bodyweight, and was the same for Holstein bulls, buffalo bulls and lactating Holstein x Red Sindhi cows. Intake of DM was not closely related to DM content of the herbage over the range of 15 to 40%. Effects of season and stage of growth on intake were not significant. Average daily gain of bulls 2 years old was 0.24 kg on guinea grass alone. It was calculated that herbage 30 to 40 days old would be sufficient for 4 kg milk per day in addition to the maintenance requirement of a cow of 400 kg. V. J.

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