Observations on biotic parameters of Angora rabbit breed under controlled conditions in different housing systems

A methodology has been developed and demonstrated which is capable of determining total amounts of asbestos fibers and fibrils in air ranging from as low as fractional nanograms per cubic meter (ng/m3) of air to several micrograms/m3. The method involves the collection of samples on an absolute filter and provides an unequivocal identification and quantification of the total asbestos contents including fibrils in the collected samples.The developed method depends on the trituration under controlled conditions to reduce the fibers to fibrils, separation of the asbestos fibrils from other collected air particulates (beneficiation), and the use of transmission microscopy for identification and quantification. Its validity has been tested by comparative analyses by neutron activation techniques. It can supply the data needed to set emissions criteria and to serve as a basis for assessing the potential hazard for asbestos pollution to the populace.

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AMORPHIZATION OF NiZr INTERFACES UNDER CONTROLLED CONDITIONS OF DEFORMATION AND TEMPERATURE

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1990429 ◽

1990 ◽

Vol 51 (C4) ◽

pp. C4-241-C4-247 ◽

Cited By ~ 4

Author(s):

S. MARTELLI ◽

G. MAZZONE ◽

A. MONTONE ◽

M. VITTORI ANTISARI

Keyword(s):

Controlled Conditions

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Mass Initial Rearing of Burbot Lota Lota (L.) Larvae Under Controlled Conditions

Polish Journal of Natural Science ◽

10.2478/v10020-009-0007-9 ◽

2009 ◽

Vol 24 (1) ◽

pp. 76-84 ◽

Cited By ~ 18

Author(s):

Daniel Żarski ◽

Wojciech Sasinowski ◽

Dariusz Kucharczyk ◽

Maciej Kwiatkowski ◽

Sławomir Krejszeff ◽

...

Keyword(s):

Lota Lota ◽

Controlled Conditions

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The Influence of Stocking Density On Survival and Growth of Buenos Aires Tetra (Hemigrammus Caudovittatus) Larvae Reared Under Controlled Conditions

Polish Journal of Natural Science ◽

10.2478/v10020-008-0071-6 ◽

2008 ◽

Vol 23 (4) ◽

pp. 881-887 ◽

Cited By ~ 4

Author(s):

Krzysztof Kupren ◽

Dariusz Kucharczyk ◽

Maja Prusińska ◽

Sławomir Krejszeff ◽

Katarzyna Targońska ◽

...

Keyword(s):

Buenos Aires ◽

Stocking Density ◽

Controlled Conditions ◽

Survival And Growth

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Reproduction of Buenos Aires Tetra (Hemigrammus Caudovittatus) Under Controlled Conditions

Polish Journal of Natural Science ◽

10.2478/v10020-008-0069-0 ◽

2008 ◽

Vol 23 (4) ◽

pp. 858-865 ◽

Cited By ~ 5

Author(s):

Dariusz Kucharczyk ◽

Katarzyna Targońska ◽

Maja Prusińska ◽

Sławomir Krejszeff ◽

Krzysztof Kupren ◽

...

Keyword(s):

Buenos Aires ◽

Controlled Conditions

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Symptoms Development as Tools to Differentiate Dorizontal Resistance in Sunflower

Agrotek ◽

10.30862/agt.v2i6.529 ◽

2018 ◽

Vol 2 (6) ◽

Author(s):

Cipta Meliala ◽

Felicity Fear ◽

Denis Tourvieille de Labrouhe

Keyword(s):

Downy Mildew ◽

Natural Infection ◽

Resistance Mechanism ◽

Good Method ◽

Vegetative Stage ◽

Horizontal Resistance ◽

Symptom Development ◽

Plasmopara Halstedii ◽

Controlled Conditions ◽

Symptom Progression

Downy mildew symptoms caused by Plasmopara halstedii encountered in sunflower plantation are varied. This variation may be related to the resistance mechanism presented by plant to the invasion of the fungus. Our objectives were firstly is to evaluate symptom development after fungus race 710 inoculation on some vegetative stage of susceptible hybrid. Second objective is to evaluate the reaction some sunflower genotypes after fungus inoculation. The study was conducted under controlled conditions or under netting cages in the field. The development of downy mildew symptoms were affected by all factors studied. Shoot inoculation may present a good method to produce downy mildew symptom similar to the natural infection. Downy mildew symptom progression may be used to screen a genotype with a horizontal resistance.

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Graduate Student Literature Review: The effect of chain length and stall width on common outcome measures of dairy cow welfare in stall-based housing systems

Journal of Dairy Science ◽

10.3168/jds.2020-19279 ◽

2020 ◽

Author(s):

V. Boyer ◽

E. Vasseur

Keyword(s):

Literature Review ◽

Chain Length ◽

Outcome Measures ◽

Graduate Student ◽

Dairy Cow ◽

Housing Systems ◽

Cow Welfare

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RECOMMENDATIONS FOR THE CHOICE OF MILKING INSTALLATIONS IN LOOSE HOUSING SYSTEMS OF COWS

Molochnoe i miasnoe skotovodstvo ◽

10.33943/mms.2020.12.24.001 ◽

2020 ◽

Author(s):

В.В. ГОРДЕЕВ ◽

В.Е. ХАЗАНОВ

Keyword(s):

Dairy Cows ◽

High Performance ◽

Large Scale ◽

Dairy Farms ◽

Economic Indicators ◽

Technical Level ◽

Housing Systems ◽

Working Shift ◽

Technical And Economic Indicators

При выборе типа доильной установки и ее размера необходимо учитывать максимальное планируемое поголовье дойных коров и размер технологической группы, кратность и время одного доения, продолжительность рабочей смены дояров. Анализ технико-экономических показателей наиболее распространенных на сегодняшний день типов доильных установок одинакового технического уровня свидетельствует, что наилучшие удельные показатели имеет установка типа «Карусель» (1), а установка типа «Елочка» (2) требует более высоких затрат труда и средств. Установка «Параллель» (3) занимает промежуточное положение. Из анализа пропускной способности и количества необходимых операторов: установка 2 рекомендована для ферм с поголовьем дойного стада до 600 голов, 3 — не более 1200 дойных коров, 1 — более 1200 дойных коров. «Карусель» — наиболее рациональный, высокопроизводительный, легко автоматизируемый и, следовательно, перспективный способ доения в залах, особенно для крупных молочных ферм. The choice of the proper type and size of milking installations needs to take into account the maximum planned number of dairy cows, the size of a technological group, the number of milkings per day, and the duration of one milking and the operator's working shift. The analysis of technical and economic indicators of currently most common types of milking machines of the same technical level revealed that the Carousel installation had the best specific indicators while the Herringbone installation featured higher labour inputs and cash costs. The Parallel installation was found somewhere in between. In terms of the throughput and the required number of operators Herringbone is recommended for farms with up to 600 dairy cows, Parallel — below 1200 dairy cows, Carousel — above 1200 dairy cows. Carousel was found the most practical, high-performance, easily automated and, therefore, promising milking system for milking parlours, especially on the large-scale dairy farms.

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