Influence of the Ryegrass Endophyte on Sheep Production in a Cool-Moist Environment

1997 ◽  
pp. 413-415 ◽  
Author(s):  
J. P. J. Eerens ◽  
H. S. Easton ◽  
R. J. Lucas ◽  
J. G. H. White ◽  
K. B. Miller
Author(s):  
G. M. Hutchins ◽  
J. S. Gardner

Cytokinins are plant hormones that play a large and incompletely understood role in the life-cycle of plants. The goal of this study was to determine what roles cytokinins play in the morphological development of wheat. To achieve any real success in altering the development and growth of wheat, the cytokinins must be applied directly to the apical meristem, or spike of the plant. It is in this region that the plant cells are actively undergoing mitosis. Kinetin and Zeatin were the two cytokinins chosen for this experiment. Kinetin is an artificial hormone that was originally extracted from old or heated DNA. Kinetin is easily made from the reaction of adenine and furfuryl alcohol. Zeatin is a naturally occurring hormone found in corn, wheat, and many other plants.Chinese Spring Wheat (Triticum aestivum L.) was used for this experiment. Prior to planting, the seeds were germinated in a moist environment for 72 hours.


2020 ◽  
Vol 04 ◽  
Author(s):  
Sourav Mohanto ◽  
Prithviraj Chakraborty ◽  
Chidambaram Soundra Pandian ◽  
Shubhradeep Manna ◽  
Joni Dutta

Background: The design and characteristics of alginate biomaterial have a significant role in wound dressing and tissue regeneration. The ideal biomaterial for wound dressing must have biodegradable, biocompatible, non-inflammatory, non-toxic. Objective: Wound dressing should promote the re-epithelization and protect the wound for further infection by creating a moist environment. The physical and mechanical nature of the alginate biopolymer has the potential to influence the pathophysiological mechanisms in the chronic wound actively. The application of this biomaterial provides an ampule advantage to synthetic polymers. Method: The wound healing process is a critical step involved in different phases. The presence of cross-linkers, polymers along with alginate lead to a decrease in the mechanical property of dressing. Hence the effective material choosing along with alginate is a very critical decision. The therapeutic efficacy of the alginate dressing system (film, hydrogel, wafer, etc.) influenced by the incorporation of different materials such as bioactive agents, nanoparticles, cross-linker, nature of the excipients, etc. Results: The ion exchange occurring between dressing and exudates resulted in the formation of gel, due to the glucuronic acid presence in alginate. This gel absorbs moisture and maintains an appropriate moist environment and actively influence the pathophysiological mechanisms in the chronic wound. Conclusion: This review gives a detailed knowledge of the researchers to work with alginate and provides knowledge about the incorporation of the appropriate material and their therapeutic efficacy in wound dressing.


2012 ◽  
Vol 52 (7) ◽  
pp. 665 ◽  
Author(s):  
Jessica E. Morris ◽  
Greg M. Cronin ◽  
Russell D. Bush

This overview discusses how precision sheep management could be utilised in the Australian sheep industry to improve production efficiency and reduce animal welfare concerns due to low monitoring frequency by stockpeople. The concept of precision sheep management is described. This is a system in which sheep are managed as individuals or small groups rather than as a (whole) flock. Precision sheep management utilises the application of radio frequency identification technology, enabling producers to better monitor sheep in extensive situations, and contribute to improved efficiency of management and sheep welfare. Examples of combining radio frequency identification with other technologies such as walk-over-weighing and Pedigree Matchmaker are discussed. These technologies provide producers with tools to improve the cost effectiveness of, and labour efficiency associated with, collecting data on individual animals. The combined technologies should also improve consistency and reliability of information, enhancing decision-making by producers, for example, from regular monitoring of biometric variables such as liveweight, or calculating breeding values to enable superior genetic comparisons over time.


1980 ◽  
Vol 95 (1) ◽  
pp. 39-45
Author(s):  
I. D. McArthur

SummaryA survey of sheep production was undertaken in rangeland areas of western Afghanistan to provide basic information of ewe body-weight changes throughout the year and on production variables, including mortality and lambing performance. Ewes lost up to 31% of body weight between December and March and mortality over the same period was 7%. On the basis of the results of this survey, an experiment was made to test the effect on lambing performance of pre-lambing supplementation of range-based ewes.Supplementation reduced weight losses in ewes, but the feeding treatments did not produce significant results in terms of lamb birth weights or survival to 10 days. However, there were indications that selective feeding of weak ewes can produce economic benefits, given that the costs of supervising such animals are minimal and the price of grain supplements is low relative to the price of meat.


Burns ◽  
2014 ◽  
Vol 40 (3) ◽  
pp. 520-524 ◽  
Author(s):  
Babur M. Shakirov
Keyword(s):  

2010 ◽  
Vol 30 (9) ◽  
pp. 1911-1917 ◽  
Author(s):  
Emilie Courcot ◽  
Francis Rebillat ◽  
Francis Teyssandier ◽  
Caroline Louchet-Pouillerie

1973 ◽  
Vol 16 (3) ◽  
pp. 447-456 ◽  
Author(s):  
G. K. Hight ◽  
K. E. Jury

1989 ◽  
Vol 29 (1) ◽  
pp. 35-47 ◽  
Author(s):  
P.J. Bowman ◽  
D.A. Wysel ◽  
D.G. Fowler ◽  
D.H. White

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