Institution
Animal Research Institute
About: Animal Research Institute is a based out in . It is known for research contribution in the topics: Population & Babesia bovis. The organization has 1512 authors who have published 2109 publications receiving 55683 citations.
Topics: Population, Babesia bovis, Serotype, Babesia bigemina, Genus
Papers published on a yearly basis
Papers
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154 citations
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TL;DR: In this article, pasture-grazed dairy cows, deer, and sheep were tested for the presence of ammonia-hyper-producing (HAP) bacteria in roll tubes containing a medium in which tryptone and Casamino Acids were the sole nitrogen and energy sources.
Abstract: Pasture-grazed dairy cows, deer, and sheep were tested for the presence of ammonia-hyperproducing (HAP) bacteria in roll tubes containing a medium in which tryptone and Casamino Acids were the sole nitrogen and energy sources. Colonies able to grow on this medium represented 5.2, 1.3, and 11.6% of the total bacterial counts of dairy cows, deer, and sheep, respectively. A total of 14 morphologically distinct colonies were purified and studied further. Restriction fragment length polymorphisms of 16S rRNA genes indicated that all isolates differed from the previously described HAP bacteria, Clostridium aminophilum, Clostridium sticklandii, and Peptostreptococcus anaerobius. Carbon source utilization experiments showed that five isolates (C2, D1, D4, D5, and S1) were unable to use any, or very few, of the carbon sources tested. Biochemical tests and phylogenetic analyses of 16S ribosomal DNA sequences indicated that all isolates were monensin sensitive; that D1 and S1 belonged to the genus Peptostreptococcus, that D4 and D5 belonged to the family Bacteroidaceae, where D4 was similar to Fusobacterium necrophorum; and that C2 was most similar to an unidentified species from the genus Eubacterium. Growth on liquid medium containing tryptone and Casamino Acids as the sole nitrogen and energy source showed that D1, D4, and S1 grew rapidly (specific growth rates of 0.40, 0.35, and 0.29 h-1, respectively), while C2 and D5 were slow growers (0.25 and 0.10 h-1, respectively). Ammonia production rates were highest in D1 and D4, which produced 945.5 and 748.3 nmol/min per mg of protein, respectively. Tests of individual nitrogen sources indicated that D1 and D4 grew best on tryptone, S1 grew equally well on Casamino Acids or tryptone, and C2 and D5 grew poorly on all nitrogen sources. The intact proteins casein and gelatin did not support significant growth of any of the isolates. These isolates extend the diversity of known HAP rumen bacteria and indicate the presence of significant HAP bacterial populations in pasture-grazed New Zealand ruminants.
147 citations
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TL;DR: Investigations of its performance in the optimisation of a challenging beef property model with 70 interacting management options indicate that Differential evolution performs better than Genial (a real-value genetic algorithm), which has been the preferred operational package thus far.
147 citations
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TL;DR: In this paper, a total of 281 strains of Haemophilus parasuis were isolated from 17 provinces of China from September 2002 to December 2004, and all these isolates were serotyped by both the gel diffusion (GD) and the indirect haemagglutination (IHA) tests.
146 citations
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TL;DR: The results suggest that either weekly averages or totals summarizing the daily heat load are adequate to describe heat load when assessing effects on conception rates in lactating dairy cows.
144 citations
Authors
Showing all 1512 results
Name | H-index | Papers | Citations |
---|---|---|---|
Peter C. Doherty | 101 | 516 | 40162 |
Iain J. Clarke | 74 | 483 | 22163 |
Raymond C. Boston | 63 | 454 | 15839 |
David J. Hampson | 60 | 373 | 12933 |
Paul H Hemsworth | 59 | 287 | 11301 |
Morris Schnitzer | 57 | 141 | 16120 |
Ian A. Clark | 56 | 183 | 10674 |
Frank R. Dunshea | 55 | 503 | 11292 |
Nicola Senesi | 53 | 245 | 11588 |
David W. Pethick | 50 | 348 | 8970 |
Peter J. Walker | 49 | 153 | 6979 |
Hume Field | 48 | 135 | 10346 |
Steven P. Djordjevic | 47 | 209 | 6871 |
John R. Pluske | 46 | 304 | 9264 |
Michael P. Ward | 46 | 419 | 8093 |