scholarly journals Porous Concrete Block as an Environmental Enrichment Device Increases Activity of Laying Hens in Cages

2008 ◽  
Vol 87 (9) ◽  
pp. 1714-1719 ◽  
Author(s):  
A. Holcman ◽  
G. Gorjanc ◽  
I. Štuhec
Keyword(s):  
Environmental Enrichment ◽  
Laying Hens ◽  
Concrete Block ◽  
Porous Concrete

scholarly journals A study on the flow-resistance to planted porous concrete block

1996 ◽  
Vol 40 ◽  
pp. 1009-1014
Author(s):  
Kazutoshi KAN ◽  
Tuyoshi HORIGUCHI ◽  
Hideaki TARE
Keyword(s):  
Flow Resistance ◽  
Concrete Block ◽  
Porous Concrete

scholarly journals Water quality and quantity assessment of pervious pavements performance in experimental car park areas

2014 ◽  
Vol 69 (7) ◽  
pp. 1526-1533 ◽  
Author(s):  
Luis A. Sañudo-Fontaneda ◽  
Susanne M. Charlesworth ◽  
Daniel Castro-Fresno ◽  
Valerio C. A. Andres-Valeri ◽  
Jorge Rodriguez-Hernandez
Keyword(s):  
Water Quality ◽  
Drainage System ◽  
Concrete Block ◽  
Concrete Surface ◽  
Basic Oxygen Furnace ◽  
Total Petroleum Hydrocarbons ◽  
Porous Concrete ◽  
Base Materials ◽  
Bivariate Correlation ◽  
Car Park

Pervious pavements have become one of the most used sustainable urban drainage system (SUDS) techniques in car parks. This research paper presents the results of monitoring water quality from several experimental car park areas designed and constructed in Spain with bays made of interlocking concrete block pavement, porous asphalt, polymer-modified porous concrete and reinforced grass with plastic and concrete cells. Moreover, two different sub-base materials were used (limestone aggregates and basic oxygen furnace slag). This study therefore encompasses the majority of the materials used as permeable surfaces and sub-base layers all over the world. Effluent from the test bays was monitored for dissolved oxygen, pH, electric conductivity, total suspended solids, turbidity and total petroleum hydrocarbons in order to analyze the behaviour shown by each combination of surface and sub-base materials. In addition, permeability tests were undertaken in all car parks using the ‘Laboratorio Caminos Santander’ permeameter and the Cantabrian Portable Infiltrometer. All results are presented together with the influence of surface and sub-base materials on water quality indicators using bivariate correlation statistical analysis at a confidence level of 95%. The polymer-modified porous concrete surface course in combination with limestone aggregate sub-base presented the best performance.

scholarly journals A meta-analysis on the effect of environmental enrichment on feather pecking and feather damage in laying hens

2020 ◽  
Author(s):  
Nienke van Staaveren ◽  
Jennifer Ellis ◽  
Christine F. Baes ◽  
Alexandra Harlander-Matauschek
Keyword(s):  
Environmental Enrichment ◽  
Laying Hens ◽  
Meta Analysis ◽  
Feather Pecking

A pecking device as an environmental enrichment for caged laying hens

2015 ◽  
Vol 87 (8) ◽  
pp. 1055-1062 ◽  
Author(s):  
Yuko Moroki ◽  
Toshio Tanaka
Keyword(s):  
Environmental Enrichment ◽  
Laying Hens

scholarly journals WATER QUALITY PURIFICATION BY A POROUS CONCRETE BLOCK INCLUDING BACILLUS SUBTILIS NATTO GROUP

2007 ◽  
Vol 51 ◽  
pp. 1415-1420
Author(s):  
Nobuhiro MATSUNAGA ◽  
Sousuke MASUDA ◽  
Taishi NAKAMUTA ◽  
Takahisa TOKUNAGA ◽  
Shinichiro YANO ◽  
...  
Keyword(s):  
Water Quality ◽  
Bacillus Subtilis ◽  
Concrete Block ◽  
Porous Concrete ◽  
Bacillus Subtilis Natto

A comparison of a straw-based and slatted floor housing system for the weaned pig

1993 ◽  
Vol 1993 ◽  
pp. 226-226 ◽  
Author(s):  
M Britton ◽  
J A Roden ◽  
O MacPherson ◽  
G Willox ◽  
P R English
Keyword(s):  
Environmental Enrichment ◽  
Ventilation System ◽  
Concrete Block ◽  
Relevant Information ◽  
Assisted Ventilation ◽  
Housing System ◽  
Barley Straw ◽  
Expanded Metal ◽  
Weaned Pig ◽  
Metal Chain

Little objective information is available on the relative merits of straw based and slatted floored systems for the weaned pig in terms of performance and indices of welfare. A controlled experiment was conducted in an attempt to obtain relevant information.The following 3 systems were compared: (1) straw bedded pens (SB), conventional flat decks (FD) and identical flat decks with environmental enrichment (FD+). The FD pens had fully perforated expanded metal floors with an ad lib feeder across the front of the pen and 2 nipple drinkers on the opposite wall. The enriched FD pens had a variety of ‘recreational’ objects added - a metal chain and tyre suspended from the ceiling within the pigs’ reach, a concrete block, a tyre and an assortment of rounded stones of different size placed on the pen floor. There were 3 pens per room but only 2 were used in the trial, one each for the FD and FD+ treatments. Temperature control was by means of 2 gas heaters and a fan assisted ventilation system which was thermostatically controlled. The straw pens were located in a large cattle court which had a concrete floor; within each pen there was a kennelled lying area and an open outrun. The whole floor surface was kept liberally covered with good quality dry barley straw. An identical ad lib feeder to that in the flat decks was provided in the outrun area and 2 nipple drinkers were provided adjacent to the feeder. In all treatments for the first 3 days of the trial a box drinker was placed in each pen to allow the pigs time to familiarise themselves with the nipple drinkers.

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