Oat forage and grain supplements for the production of yearling beef from pasture on the Northern Tablelands of New South Wales

1978 ◽  
Vol 18 (91) ◽  
pp. 183 ◽  
Author(s):  
DW Hennessy ◽  
GG Robinson
Keyword(s):  
Trifolium Repens ◽  
Avena Sativa ◽  
New South ◽  
New South Wales ◽  
Cattle Grazing ◽  
South Wales

The use of supplements of oat grain alone, or with silage or hay, to produce marketable yearling cattle ('finished' and >270 kg) in October was assessed at Glen lnnes on the Northern Tablelands of New South Wales. The assessment was made over three years. Weaned cattle grazed improved pastures (mainly Phalaris tuberosa and Trifolium repens) from March, with or without forage oats (Avena sativa) from June to October, when the supplements were also given. When grain supplements were given to weaner cattle grazing pasture only, 24 per cent were 'finished' compared with none without grain supplements, but the supplements were not justified economically. When oat grain supplements were given to weaners grazing pasture and forage oats, 60 per cent were 'finished' by October compared with 8 per cent without the grain; the supplements were economically worthwhile when cattle were valued at 37c kg-1 liveweight. There was no apparent substitution by the cattle of grain for herbage over the whole period in the supplemented treatments, with from 5.7-10.8 kg of grain required for every kg of additional liveweight gain. The effectiveness of grain supplements and the efficiency of gain were reduced when grain was partially replaced by either silage or hay.

Beef production from pasture and forage oats on the Northern Tablelands of New South Wales

1975 ◽  
Vol 15 (73) ◽  
pp. 149
Author(s):  
DW Hennessy ◽  
GG Robinson
Keyword(s):  
Trifolium Repens ◽  
New South ◽  
New South Wales ◽  
Cattle Grazing ◽  
Stocking Rate ◽  
Beef Production ◽  
Economic Return ◽  
South Wales ◽  
Improved Pasture

To overcome a winter-sp nes, New South Wales forage oats were sown into forty-five per cent of improved pasture (mainly Phalaris tuberosa and Trifolium repens) areas and the liveweight gains of weaner cattle grazing these areas from March to October were compared with those grazing pasture only. Three methods for managing the grazing of the forage oats were compared in 1971, and in 1972 the effect of an oat grain supplement on liveweight gain of cattle grazing either pasture only or pasture and forage oats was measured. Weaners did not reach 270 kg by October, the objective mean liveweight, in any of the treatments or years. Neither did forage oats significantly increase beef production from pasture, but when properly managed did reduce the need for hay supplements to maintain weaner liveweight during winter. Although the stocking rate of 2.82 weaners ha-1 from March to October was apparently too high in 1971 to allow adequate liveweight gains, the forage oats and pasture were best utilized by allowing weaners to graze freely between paddocks. Oat grain supplements in 1972 did improve weaners' liveweights (at intakes of 1 .O-2.0 per cent liveweight) but reduced the relative economic return from either the pasture or pasture and forage oat areas. We concluded from the study that forage oats sown into improved pasture areas did not increase feed availability in the latter part of the feed-gap nor reliably increase beef production from pasture at the stocking rate studied.

Pyrenophora semeniperda. [Distribution map].

1995 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
New Zealand ◽  
North America ◽  
Geographical Distribution ◽  
Avena Sativa ◽  
New South ◽  
New South Wales ◽  
Distribution Map ◽  
South Wales ◽  
New Distribution

Abstract A new distribution map is provided for Pyrenophora semeniperda (Brittlebank & Adam) Shoemaker. Hosts: wheat (Triticum), oats (Avena sativa) and many other Gramineae. Information is given on the geographical distribution in AFRICA, South Africa, AUSTRALASIA & OCEANIA, Australia, New South Wales, Vic., New Zealand, EUROPE, France, NORTH AMERICA, Canada, USA.

Morphological characteristics and agronomic merit of white clover (Trifolium repens L.) populations collected from northern New South Wales

2000 ◽  
Vol 51 (8) ◽  
pp. 985 ◽  
Author(s):  
L. A. Lane ◽  
J. F. Ayres ◽  
J. V. Lovett ◽  
R. D. Murison
Keyword(s):  
Genetic Differentiation ◽  
White Clover ◽  
Trifolium Repens ◽  
New South ◽  
New South Wales ◽  
Morphological Characteristics ◽  
Grazing Intensity ◽  
South Wales ◽  
Trifolium Repens L ◽  
Collection Sites

Aset of white clover (Trifolium repens L.) populations collected from old pasture sites in northern New South Wales was characterised in situ at the collection sites and under uniform glasshouse conditions, and then evaluated for agronomic merit in the field. The data were examined to determine whether ecotype development through genetic differentiation had occurred in these white clover populations, and to assess their potential value for future breeding. Environmental conditions at the collection sites represented a wide diversity of rainfall, altitude, soil type, companion grass, and grazing intensity conditions. The populations generally were found to be medium-leaf and mid- to late-flowering and derived from early New Zealand introductions to Australia. The populations showed significant (P < 0.05) variation in morphological characteristics (leaf size and stolon characters) and this variation was expressed in all 3 environments. It was concluded that significant genetic differentiation affecting stolon and flowering characteristics had occurred, with implications for agronomic value. A small cluster of the populations was found to possess useful characteristics for white clover breeding where persistence in dryland environments is the primary breeding objective.

Selenium concentration in the blood of ruminants grazing in Northern New South Wales. 2. Relationship with geological, pedological and other variables

1981 ◽  
Vol 32 (3) ◽  
pp. 523 ◽  
Author(s):  
JP Langlands ◽  
JE Bowles ◽  
AJ Smith ◽  
GE Donald
Keyword(s):  
Soil Type ◽  
New South ◽  
New South Wales ◽  
Selenium Concentration ◽  
Cattle Grazing ◽  
Parent Material ◽  
Igneous Rocks ◽  
Podzolic Soils ◽  
South Wales ◽  
Low Concentrations

Selenium concentrations in blood from cattle from 794 farms in northern New South Wales were classified on the basis of underlying parent material, soil type, altitude and rainfall. Blood selenium concentrations declined from west to east, and with increasing rainfall and altitude; low concentrations were particularly evident on both acid and basic igneous rocks. There were significant differences between basalts in different locations and between particular plutonic bodies. Cattle grazing on soils with contrasting and gradational profiles generally had lower selenium concentrations than those grazing on soils with uniform profiles. Podzolic soils and chocolate-prairie and kraznozem-chocolate soil associations were present in areas with low blood selenium concentrations.

The intake and performance of cattle grazing irrigated pastures. 2. Effect of pasture length on growth of steers

1973 ◽  
Vol 13 (64) ◽  
pp. 477
Author(s):  
DW Hennessy
Keyword(s):  
Organic Matter ◽  
Growth Rates ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Cattle Grazing ◽  
High Moisture ◽  
Moisture Contents ◽  
South Wales ◽  
And Performance

The organic matter intakes (OMI) and liveweight of twenty-four weaner steers grazing either short or long irrigated annual pastures were compared during May to November in 1964 and 1965 at Leeton, New South Wales. The OMI were estimated from determinations of faeces organic matter output using chromic oxide dilution, and of digestibility estimated from a faeces nitrogen-digestibility relationship for pen-fed cattle. Weaners that grazed the short or long pasture did not differ significantly in final liveweights (356 v.361 kg respectively, 1964; 357 v.361 kg, 1965) or OMI (4.99 v.5.42 kg day-1, 1964; 5.78 v.6.06 kg day-1, 1965) although available dry matter was less (P < 0.05) in short than in long pastures in both years. The OMI were commensurate with the 0.6 kg mean daily liveweight gains of weaners, which however were smaller than other reported growth rates, and an unsatisfactory production from the costly pastures. The reasons for the small liveweight gains are unknown but it is suggested that high moisture contents (85 per cent) of pastures restricted intake, or that high clover contents (58 per cent) caused bloating and rumen distension which thereby restricted intake.

scholarly journals Bacterial Blight of Vicia Sativa: Aetiology of the Disease and Identification of the Pathogen

1970 ◽  
Vol 23 (3) ◽  
pp. 597 ◽  
Author(s):  
RN Allen ◽  
AC Hayward ◽  
WJ Halliday ◽  
Jean Fulcher
Keyword(s):  
Trifolium Repens ◽  
Bacterial Blight ◽  
New South ◽  
New South Wales ◽  
North Coast ◽  
Vicia Sativa ◽  
New Disease ◽  
The North ◽  
South Wales ◽  
First Time

A serious new disease of vetch in the north coast area of New South Wales was shown to be caused by Pseudomonas stizolobii (Wolf) Stapp. The pathogen, recorded in Australia for tho first time, was able to infect eight other species of legumes in glasshouse tests. Field diseases of Trifolium repens and Mucuna sp. caused by this organism were also recorded and isolates obtained from these sources were found to be pathogenic to vetch.

Studies of the effects of energy, protein and mineral supplementation to cattle grazing naturalised pastures on the North Coast of New South Wales

2003 ◽  
Vol 43 (1) ◽  
pp. 47 ◽  
Author(s):  
H. Lloyd Davies ◽  
D. Petrie ◽  
R. Paliskis
Keyword(s):  
New South ◽  
New South Wales ◽  
Cattle Grazing ◽  
Coat Colour ◽  
North Coast ◽  
Protein Nitrogen ◽  
The North ◽  
Liver Copper ◽  
South Wales ◽  
Native Pastures

A series of experiments were conducted to measure the response by cattle grazing 'native pastures' on the North Coast of New South Wales to supplements of energy, protein and the administration of mineral supplements.In all experiments there were liveweight responses to both energy and protein supplements. The magnitude of the response to the grain supplements was affected by treatment of the grain with extruded grain tending to give a superior liveweight response. The response to nitrogen supplements differed between non-protein-nitrogen (urea) and protein — always in favour of the protein supplement. There were no liveweight responses to copper cobalt or selenium. Supplemental copper administered in a variety of ways increased liver copper concentration, plasma copper and ceruloplasmin and coat colour changed from yellow to red. The low copper storage levels were not associated with high molybdenum values in the feed on offer. Administration of selenium did not increase the unsatisfactory pregnancy rate but did raise the level of circulating glutathione peroxidase.

The effect of anthelmintic treatments on growth of beef cattle in New South Wales

1981 ◽  
Vol 32 (5) ◽  
pp. 813 ◽  
Author(s):  
MG Smeal ◽  
PJ Nicholls ◽  
RF Webb ◽  
IK Hotson ◽  
FR Doughty ◽  
...  
Keyword(s):  
Beef Cattle ◽  
New South ◽  
New South Wales ◽  
Late Summer ◽  
Gastrointestinal Nematode ◽  
Cattle Grazing ◽  
Early Spring ◽  
North Coast ◽  
South Wales ◽  
The Mean

The effects of anthelmintic treatments on the growth of young beef cattle on the Tablelands and North Coast regions of New South Wales were assessed by comparing the liveweight gains of treated and untreated cattle grazing the same pasture. Anthelmintic treatments were given every 4 weeks to suppress gastrointestinal nematode infections and at strategic times. These times were at weaning (in autumn), during winter and in the late summer of the following year, and were chosen to coincide mainly with increasing worm burdens. After weaning, the mean cumulative liveweight responses of suppressively treated groups were often significantly greater during winter and early spring. Strategic treatments in winter but not in autumn also gave a significant liveweight response in some trials. Suppressively treated groups showed considerable variation in their growth rates during spring. This most likely reflected year-to-year variations in pasture growth, but the mean cumulative liveweight responses of several treated groups were significantly greater than those of untreated groups. These results suggest that helminth infections affected the growth of young beef cattle in both winter and spring. There was little liveweight response to suppressive treatments in the late summer and autumn of the second year, when the cattle were 16-20 months old. At the end of autumn, these cattle were usually 20-30 kg per head heavier than untreated cattle. Strategic treatments given in late summer to cattle grazing with untreated cattle did not produce any substantial liveweight response.

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