Effects of protein meal supplements on the growth and reproduction of Hereford heifers and cows grazing a native grass pasture in the subtropics

1988 ◽  
Vol 28 (4) ◽  
pp. 439 ◽  
Author(s):  
DW Hennessy ◽  
PJ Williamson

In the coastal subtropics of New South Wales, pasture growth occurs mainly in summer, when 500-600 mm of rain is expected. During winter, pasture quality declines, with digestible organic matter content as low as 374 g/kg DM in August and nitrogen down to 6.5 g/kg DM. Growth and reproduction of British breed cattle is also low so that, in an attempt to increase these attributes, protein meal supplements were offered to Hereford heifers and cows over 5 years. Heifers without supplements lost liveweight during their first winter and none calved after being mated at 15 months of age to Hereford bulls during a 9-week joining period. During their second winter, 58% of the heifers calved and, over 5 mating seasons, their mean annual calving rate was 48%. Supplemented heifers gained liveweight during their first winter and 95% of them calved, after first-joining at 15 months of age. Over 5 years their mean calving rate was 85%. Delaying first-joining to 27 months of age, as determined by a second group also supplemented with protein meal, did not increase production or mean calving rate (81%) over 5 years. The 230-day adjusted liveweight of calves weaned from non-supplemented heifers was 138 kg, significantly (P< 0.01) less than the 179 �10 kg (mean � s.e.d.) for calves weaned from the supplemented early-calving group, or 198 kg for the supplemented late-calving group. The results highlight the limitation to cattle production imposed by the low levels of nitrogen and poorly digestible pasture, and emphasise the important role of protein meal supplements with added minerals in increasing production of breeding herds grazing unimproved pastures in the subtropics.

1986 ◽  
Vol 56 (2) ◽  
pp. 407-419 ◽  
Author(s):  
K. Ushida ◽  
J. P. Jouany ◽  
P. Thivend

1. The effect of protozoa on digestion in the rumen was studied using either defaunated or faunated sheep.2. Six wethers, each fitted with rumen and simple duodenal cannulas, were given two isonitrogenous diets containing either lucerne (Medicago sativa) hay (diet L) or sodium hydroxide-treated wheat straw (diet S). The diets were given in eight equal portions per day at 3-h intervals. The mean intake of dry matter, 53 g/kg body-weight0.75per d, was similar for the two diets and each diet had a similar digestible organic matter content. Diet L promoted a large protozoal population and was rich in nitrogen sources of low rumen-degradability, while diet S supported a smaller protozoal population and was rich in rumen-degradable N.3. Digesta flow at the duodenum was estimated by means of a dual-marker technique using chromium-mordanted lucerne hay and polyethylene glycol as markers. The microbial flow at the duodenum was estimated using diaminopimelic acid (DAPA), nucleic-acid purine bases (PB) and35S incorporation simultaneously. The different microbial markers were compared in the defaunated sheep. Protozoal N contribution was estimated in faunated sheep.4. Defaunated sheep had lower rumen ammonia concentrations and molar proportions of butyric acid than faunated sheep, but they had higher molar proportions of propionic acid.5. Rumen organic matter digestion was reduced by defaunation, but this decrease was compensated for by increased intestinal digestion.6. There was a net increase of N flow (approximately 10 g/d) between mouth and duodenum in defaunated sheep. This was explained by increases in both microbial and dietary N flows from the rumen compared with faunated sheep.7. The influence of protozoa on solid- and liquid-phase retention times in the rumen is discussed, as well as the protozoal contribution to microbial N flow in the duodenum of faunated sheep.


2016 ◽  
Vol 15 (2) ◽  
pp. 231-241 ◽  
Author(s):  
Benjamin C. Forster ◽  
Helen Proskurin ◽  
Brian Kelly ◽  
Melanie R. Lovell ◽  
Ralf Ilchef ◽  
...  

AbstractObjective:People with a life-limiting physical illness experience high rates of significant psychological and psychiatric morbidity. Nevertheless, psychiatrists often report feeling ill-equipped to respond to the psychiatric needs of this population. Our aim was to explore psychiatry trainees’ views and educational needs regarding the care of patients with a life-limiting physical illness.Method:Using semistructured interviews, participants’ opinions were sought on the role of psychiatrists in the care of patients with a life-limiting illness and their caregivers, the challenges faced within the role, and the educational needs involved in providing care for these patients. Interviews were audiotaped, fully transcribed, and then subjected to thematic analysis.Results:A total of 17 psychiatry trainees were recruited through two large psychiatry training networks in New South Wales, Australia. There were contrasting views on the role of psychiatry in life-limiting illness. Some reported that a humanistic, supportive approach including elements of psychotherapy was helpful, even in the absence of a recognizable mental disorder. Those who reported a more biological and clinical stance (with a reliance on pharmacotherapy) tended to have a nihilistic view of psychiatric intervention in this setting. Trainees generally felt ill-prepared to talk to dying patients and felt there was an educational “famine” in this area of psychiatry. They expressed a desire for more training and thought that increased mentorship and case-based learning, including input from palliative care clinicians, would be most helpful.Significance of Results:Participants generally feel unprepared to care for patients with a life-limiting physical illness and have contrasting views on the role of psychiatry in this setting. Targeted education is required for psychiatry trainees in order to equip them to care for these patients.


1997 ◽  
Vol 3 (4) ◽  
pp. 319 ◽  
Author(s):  
Paul Adam ◽  
Tony Auld ◽  
Doug Benson ◽  
Peter Catling ◽  
Chris Dickman ◽  
...  

Lim (1997) has recently presented a critique of aspects of the New South Wales Threatened Species Conservation Act (TSCA), and in particular of the role of the Scientific Committee established by the Act.


2017 ◽  
Vol 56 (3) ◽  
pp. 532-556 ◽  
Author(s):  
Maura Capps

AbstractThis article challenges the dominant historical paradigms used to analyze imperial plant and animal transfers by examining the role of fodder crops in early colonial development in New South Wales and the Cape of Good Hope. In Alfred Crosby's enduring formulation of ecological imperialism—that is, the ecological transformation of temperate colonies of settlement by European plants, animals, and pathogens—was a largely independent process. To Crosby's critics, his grand narrative fails to acknowledge the technocratic management of plant and animal transfers on the part of increasingly long-armed colonial states from the mid-nineteenth century. Yet neither approach can adequately explain the period between the decline of Britain's Atlantic empire in the 1780s and the rise of its global empire in the 1830s, a period dominated by an aggressive ethos of agrarian improvement but lacking the institutional teeth of a more evolved imperial state. Traveling fodder crops link these embryonic antipodean colonies to the luminaries of the Agricultural Revolution in Britain. The attempt to transfer fodder-centric mixed husbandry to these colonies points to an emerging coalition of imperial ambition and scientific expertise in the late eighteenth-century British Empire.


2019 ◽  
Vol 42 (4) ◽  
Author(s):  
Catherine Dale Greentree

This article argues that the prerogative of mercy should be retained in New South Wales as a necessary and appropriate power of the Executive. Historically, pardons have provided opportunities for redemption. Currently, the statutory appeals process is limited to cases involving a miscarriage of justice where there is considerable doubt as to a person’s guilt. In cases where a person is guilty but is nevertheless deserving of mercy, the prerogative of mercy is the only avenue available. As a purely executive power, the prerogative of mercy can achieve the aims of the criminal justice system by tempering justice with mercy. The role of the sovereign involves maintaining order, but also enacting some conception of the good, driven by compassion, love, and mercy. Finally, this article argues that grants of mercy should be a matter of public record, for transparency and as a means of demonstrating this compassion to the public.


Societies ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 31 ◽  
Author(s):  
Reynolds ◽  
Liston

This paper examines the role of the victim through the prism of prosecutor in the first third of the nineteenth century when England did not have a public prosecutor or national police force and most crimes were prosecuted in the courts by the victim. The selection of cases is drawn from a larger investigation of female offenders punished by transportation to New South Wales, Australia. The cases demonstrate the diversity of victims, the power they held as prosecutors and highlight the process from apprehension to conviction. Historical records of regional English Assizes and Sessions were investigated to identify the victim and record the prosecution process.


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