A note on liveweight gains of sheep grazing different ryegrass pastures

In two experiments the intakes and utilisation of pure swards of perennial ryegrass (P), short-rotation ryegrass (S), and whi:e clover (e) were measured with grazing sheep, under conditions where there were differences in live-weight gain between treatments.There were differences in feed intake, but, because of high variability between animals, few were statistically significant. The intake of S was generally higher than that of P. [n one experiment the intake of e appeared to be higher than that of the ryegrasses, hut this was not repeated in the second experiment.There were consistent differences in the gross efficiencies of utilisation of digested energy for live-weight gain in both experiments, in the order e>s>p.Possible reasons for these differences in intake and utilisation are discussed.

Section: Discussionsupporting

confidence: 81%

Studies on the causes of the differences in pasture quality between perennial ryegrass, short-rotation ryegrass, and white clover

Ulyatt¹

1971

“…Rae et al (1964) found liveweight growth of Romney wethers on perennial ryegrass to be similar to that on Ariki ryegrass. These workers also mention the importance of clover yield to liveweight gain.…”

Section: Discussionmentioning

confidence: 84%

A comparison of “Grasslands Ariki” and “Grasslands Ruanui” ryegrasses for lamb fattening in Southland

Harris¹,

Johnston²

1967

“…Mixed pastures of ryegrass and white clover give higher liveweight gains than ryegrass only (Rae, Brougham, and Barton 1964;Gallagher, Watkin, and Grimes 1966).…”

Section: Introductionmentioning

confidence: 99%

Pasture length and species in relation to the autumn growth of hoggets

Hight¹,

Sinclair²

1967

A trial is described in which the liveweight growth of hoggets grazing six different pastures was compared. The six pastures comprised short perennial ryegrass (SP), long perennial ryegrass (LP), short perennial ryegrass plus white clover (SP + C), long perennial ryegrass plus white clover (LP + C), short white clover (SC), and long white clover (LC).Mean liveweight gains were 6.4, 16.9, 18.1, 24.6, 34.0, and 34.7 lb respectively from