Animal production from rotationally-grazed natural and sown pastures under coconuts at three stocking rates in the Solomon Islands

Smith M.A. and Whiteman P.C. (1985) Animal production from rotationally-grazed natural and sown pastures under coconuts at three stocking rates in the Solomon Islands. The Journal of Agricultural Science, 104 1: 173-180. doi:10.1017/S0021859600043094


Author Smith M.A.
Whiteman P.C.
Title Animal production from rotationally-grazed natural and sown pastures under coconuts at three stocking rates in the Solomon Islands
Journal name The Journal of Agricultural Science   Check publisher's open access policy
ISSN 1469-5146
Publication date 1985-01-01
Sub-type Article (original research)
DOI 10.1017/S0021859600043094
Volume 104
Issue 1
Start page 173
End page 180
Total pages 8
Subject 1102 Cardiovascular Medicine and Haematology
1103 Clinical Sciences
1311 Genetics
Abstract A continuously grazed trial on natural and sown pastures under coconuts was reported by Watson & Whiteman (1981). This has been continued for another 3 years as a rotationally grazed trial. The paddocks were divided down the centre and three animals grazed for 28 days in one half and were transferred to the other half for 28 days. The same three stocking rates of 1.5, 2.5 and 3.5 steers/ha were maintained. In the sown pasture paddocks Brachiaria decumbens and Brachiaria miliiformis were planted in rows from rooted cuttings, while Centrosema pubescens (centro) and Pueraria phaseoloides (puero) were sown, with seed at 4 and 3 kg/ha, respectively. Naturalized pastures were maintained by grazing at 2.5 steers/ha during the establishment of the sown pasture. Light transmission was 62 %. Sown grasses were lost after 4 months from the start of rotational grazing. In the sown pastures puero became dominant. Animal live-weight gain (LWG) on puero was poor in the first 140 days of grazing in each year, but after this time it inoreased. Centro was the dominant species in the natural pasture of 2.5 and 3.5 steers/ha. However, there was little difference in yearly LWG except in year 3 when the 2.5 steers/ha had higher gains in the natural (363 kg/ha) than in the sown pasture (250 kg/ha). The mean live-weight gain (kg/ha) in the first 2 years of the rotationally grazed trial (315 kg/ha) was lower than in the continuously grazed trial (364 kg/ha) at 3.5 steers/ha. The time and efficiency of collecting fallen coconuts was lower at 1.5 steers/ha in both pastures, but not different between 2.5 and 3.5 steers/ha. In continuous and rotational grazing there is little point in planting Brachiaria species. Productive pastures in plantations can be obtained by controiling weeds and sowing centro and puero into the naturalized Axonopus compressus and stocking at 2.5-3.0 steers/ha. Further research on other grasses such as Ischaemum aristatum and Stenotaphrum secundatum may lead to better grass persistence.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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