Preferences of farmed silver foxes (Vulpes vulpes) for four different floor types

1999 ◽  
Vol 79 (1) ◽  
pp. 1-5 ◽  
Author(s):  
M. Harri ◽  
J. Mononen ◽  
J. Sepponen
Keyword(s):  
Vulpes Vulpes ◽  
Preference Test ◽  
Wire Mesh ◽  
Test Environment ◽  
Active Time ◽  
Coated Wire ◽  
Dry Wood ◽  
High Level ◽  
Resting Period ◽  
Floor Material

Farmed silver foxes were allowed to choose between four standard farm cages, each of which was equipped with a different floor material: plastic-coated wire mesh (WM); dry wood (DW); dry sand (DS); and wet wood (WW) or icy sand (IS). Six males and six females were placed in the test environment singly in winter; and the same individuals, again in spring. The use of the different floors was videorecorded and analysed from the tapes for active periods and resting period on 5 or 6 d. Resting consisted of 14–20 separate bouts d−1, occupying 58–62% of the total 24 h. In winter, the active periods of the animal’s day were spent as follows: DW (34%) = DS (33%) > IS (17%) = WM (15%). The resting periods were spent as follows: DW (59%) > WM (26%) = DS (15%) > IS (1%). In spring, the order of active time was DS (36%) > DW (25%) = WW (24%) > WM (15%) and of resting time was DW (51%) > WM (19%) = WW (16%) = DS (15%). Different individuals preferred different floors, leading to large variance in the group means. This high variation may suggest a low level of priority in general but a high level of priority within individuals. Although solid floors were highly preferred when dry, they were least preferred when wet or icy. Key words: Preference test, wire-mesh floor, solid floor, wet floor, resting place, Vulpes vulpes

Electrophoretically Al-coated wire mesh and its application for catalytic oxidation of 1,2-dichlorobenzene

2003 ◽  
Vol 168 (2-3) ◽  
pp. 103-110 ◽  
Author(s):  
Kyung Shik Yang ◽  
Zhidong Jiang ◽  
Jong Shik Chung
Keyword(s):  
Catalytic Oxidation ◽  
Wire Mesh ◽  
Coated Wire

scholarly journals Genetic Structure and Gene Flow in Red Foxes (Vulpes vulpes) in Scandinavia: Implications for the Potential Future Spread of Echinococcus multilocularis Tapeworm

2019 ◽  
Vol 9 (24) ◽  
pp. 5289
Author(s):  
Mari Hagenlund ◽  
Arne Linløkken ◽  
Kjartan Østbye ◽  
Zea Walton ◽  
Morten Odden ◽  
...  
Keyword(s):  
Gene Flow ◽  
Population Ecology ◽  
Wildlife Management ◽  
Echinococcus Multilocularis ◽  
Vulpes Vulpes ◽  
Red Fox ◽  
Emerging Diseases ◽  
Red Foxes ◽  
Genetic Structuring ◽  
High Level

Knowledge about the dispersal and gene flow patterns in wild animals are important for our understanding of population ecology and the connectedness of populations. It is also important for management relating to disease control and the transmission of new and emerging diseases. Our study aimed to evaluate the genetic structuring among comparative samples of red foxes in a small part of Scandinavia and to estimate the gene flow and potential directionality in the movements of foxes using an optimized set of microsatellite markers. We compared genetic samples of red foxes (Vulpes vulpes) from two areas in Sweden and two areas in Norway, including red fox samples from areas where the occurrence of the cyclophyllic tapeworm Echinococcus multilocularis has been documented, and areas without known occurrence of the parasite. Our results show a high level of gene flow over considerable distances and substantiates migration from areas affected with E. multilocularis into Norway where the parasite is not yet detected. The results allow us to better understand the gene flow and directionality in the movement patterns of red foxes, which is important for wildlife management authorities regarding the spread of E. multilocularis.

Diet analysis of mammals, raptors and reptiles in a complex predator assemblage in the Blue Mountains, eastern Australia

2011 ◽  
Vol 59 (5) ◽  
pp. 295 ◽  
Author(s):  
Jack H. Pascoe ◽  
Robert C. Mulley ◽  
Ricky Spencer ◽  
Rosalie Chapple
Keyword(s):  
Field Study ◽  
Canis Lupus ◽  
Vulpes Vulpes ◽  
Diet Overlap ◽  
Diet Analysis ◽  
Critical Weight ◽  
Blue Mountains ◽  
Eastern Australia ◽  
High Level ◽  
Wild Dogs

South-east Australia has a complex predator assemblage which has historically been vulnerable to introduced species. This is the first Australian field study to analyse samples from members of the families Canidae, Dasyuridae, Strigidae, and Varanidae to describe the diet and diet overlap between these predators. Samples were collected opportunistically and hair and bone analysis was used to identify the content of samples. Wild dogs (Canis lupus) and lace monitors (Varanus varius) predominantly consumed large mammalian prey, which contributed to the high level of diet overlap (Ojk = 0.79) between these two species. Foxes (Vulpes vulpes) and spotted-tailed quolls (Dasyurus maculatus) also had a high level of diet overlap (Ojk = 0.76), a result of their diets containing a high proportion of medium-sized mammals. The diet of wild dogs and foxes showed moderate overlap (Ojk = 0.59), and foxes were more likely to prey on species within the critical weight range than on macropods, which made up a high proportion of the diet of wild dogs. These data confirm that significant diet overlap can occur between predators from different taxonomic classes and further investigation of potential competition will be important to ongoing management.

NIPPLE FEEDING OF SUPPLEMENTAL PROTEIN TO CALVES

1977 ◽  
Vol 57 (1) ◽  
pp. 181-186 ◽  
Author(s):  
P. H. ROBINSON ◽  
D. N. MOWAT ◽  
H. W. CHAPMAN ◽  
J. J. PARKINS
Keyword(s):  
Bottle Feeding ◽  
Wire Mesh ◽  
Urea Nitrogen ◽  
Plasma Urea ◽  
Bull Calves ◽  
Lukewarm Water ◽  
High Level ◽  
Supplemental Protein ◽  
High Degree ◽  
Basal Ration

Forty-eight Holstein bull calves initially averaging 90 kg were used in a 2 × 2 factorial design to compare two levels and two methods of feeding supplemental protein. The basal ration, which was fed free choice, consisted of shelled corn, minerals, vitamins and urea and provided 10.5% CP on a DM basis. Supplemental protein as 50% CP soyaflour was fed at levels of 228 g (H) and 126 g (L) per day. The soyaflour was fed either with the basal ration (C) or twice per day (in equal amounts) from a nipple bottle (N) after being mixed with approximately 2 liters of lukewarm water. Calves were housed in individual pens with wire mesh floors and fed for 70 days. The soyaflour slurry was vigorously consumed by calves. No significant differences (P <.05) occurred in any of the performance parameters. However, a trend toward reduced weight gains and DM intake was observed among calves fed treatment LN. A nitrogen metabolism trial was conducted concurrently utilizing the same calves. Calves fed the high level of protein retained more (P <.05) nitrogen and excreted more (P <.05) urine urea nitrogen than calves fed the low level of protein. Increases in levels of plasma urea nitrogen following feeding were greater (P <.05) and occurred later (P <.05) in nipple-fed compared to conventionally fed calves. A subsequent trial was conducted with 10 calves to determine extent of closure of the reticular groove. Post-feeding levels of both blood glucose and rumen strontium indicated a high degree of groove closure with bottle feeding.

Mélange within subduction–accretion complex rocks of Fredriksen Island, South Orkney Islands

1983 ◽  
Vol 120 (6) ◽  
pp. 555-566 ◽  
Author(s):  
B. C. Storey ◽  
A. W. Meneilly
Keyword(s):  
Shear Zone ◽  
Continental Margin ◽  
Pillow Lava ◽  
Orkney Islands ◽  
Pacific Side ◽  
South Orkney Islands ◽  
High Level ◽  
Trench Slope ◽  
The Western Pacific ◽  
Floor Material

Summary. A m´lange on Fredriksen Island, South Orkney Islands, is part of a Mesozoic subduction- accretion complex which formed along the western, Pacific side of Gondwana. It consists of a chaotic arrangement of irregular sized blocks, up to 8 m across, of basic pillow lava, chert, felsite and epiclastic sandstone in a pervasively sheared cataclastic matrix. Inclusions are typically lozenge-shaped and are characteristic of a tectonic m´lange. As the m´lange incorporates both possible ocean floor material that was accreted on to the continental margin and inner slope basin sediments it probably formed beneath the trench-slope basin along a shear zone at a high level in the subduction complex.

Winter activity patterns of females in two moose populations

1989 ◽  
Vol 67 (6) ◽  
pp. 1516-1522 ◽  
Author(s):  
Göran Cederlund ◽  
Roger Bergström ◽  
Finn Sandegren
Keyword(s):  
Food Availability ◽  
Activity Pattern ◽  
Average Length ◽  
Activity Patterns ◽  
Body Motion ◽  
Active Time ◽  
Low Level ◽  
Winter Activity ◽  
Radio Signals ◽  
High Level

Data on activity patterns of nine radio-tagged female moose (Alces alces) in an area with a high level of nutrition (Grimsö) and seven radio-tagged female moose in an area with a low level of nutrition (Furudal) are presented. The study was done during January–May in 1982–1986 at Grimsö and in 1986 in Furudal, comprising 6063 and 4136 h of recording, respectively. The character of the radio signals allowed separation of active (any kind of body motion, mainly movements) and inactive (a motionless state, mainly in lying position) bouts. The 24-h activity pattern was similar between the two areas during all winter months. Active bouts showed a polyphasic pattern with prominent peaks around sunrise and sunset. The average active time per 24-h interval varied (30–50%) through the winter months, and increased rapidly in April and May. The average length of active bouts was similar in both areas during midwinter (60–70 min) but developed more rapidly in April and May among moose at Grimsö. The moose at Furudal rested for longer periods than those at Grimsö, and in both areas bouts became shorter towards spring (around 120 min). The moose at Grimsö kept the number of bouts per 24-h interval almost unchanged throughout winter (11.0–11.9), while the number consistently increased at Furudal (9.9–12.7 bouts per 24-h interval). Differences in activity pattern are discussed in relation to food availability and overbrowsing.

Physiological and behavioural responses in blue foxes (Alopex lagopus ) : comparisons between space quantity and floor material

2001 ◽  
Vol 72 (2) ◽  
pp. 375-387 ◽  
Author(s):  
H. Korhonen ◽  
L. Jauhiainen ◽  
P. Niemelä ◽  
M. Harri ◽  
R. Sauna-aho
Keyword(s):  
Test Group ◽  
Liver Weight ◽  
Creatine Kinase Activity ◽  
Wire Mesh ◽  
Heart Weight ◽  
Alopex Lagopus ◽  
Acth Stimulation ◽  
Behavioural Responses ◽  
Cage Size ◽  
Floor Material

AbstractWelfare-related physiological and behavioural responses were studied in farmbred blue foxes (Alopex lagopus). Comparisons in space quantity were made between two different-sized shed cages (50 cm long (W50) and 120 cm long (W120); each 105 cm wide ✕ 70 cm high) and for one out-of-shed pen (5 m long ✕ 3 m wide ✕ 1·8 m high; W500). Each option had a wire-mesh floor. Furthermore, we tested how floor material affects responses by comparing the W500 foxes in wire-mesh floor pens with foxes housed in earthen floor pens (E500: 5 m long ✕ 3 m wide ✕ 1·8 m high). Each test group comprised 20 juvenile males maintained in pairs. The experiments lasted from weaning in July to pelting in December. Final body weights of the W500 foxes were significantly lower than those of the W50 or W120 foxes. Claw length of back foot was longer for E500 than for W500 foxes. Posture of front feet was the most folded for W50 and the least folded for E500 foxes. Breaking strength of tibia was highest for foxes housed on the earthen floor (E500). Gastrocnemius muscle succinate dehydrogenase activity tended to decrease and the number of leucocytes tended to increase with cage size. Alanine-aminotransferase and aspartate-amino transferase activities were significantly higher in foxes housed in shed cages (W50, W120) than in enclosures (W500, E500). Creatine-kinase activity tended to decline with increasing cage size. Highest and lowest open field activity was found for E500 and W50 foxes in both wire-mesh and earthen floor test arenas. Some differences were found in body weight-related organ sizes between groups. Heart weight was significantly higher in W500 than in W50 or W120 foxes. Brain weight was significantly lower in W50 than in W500 foxes. Liver weight increased with increasing cage size. Capture time was significantly lower for W50 and W120 foxes than for W500 or E500 foxes. Cortisol levels after capture were significantly higher in foxes from enclosures (W500, E500) than in those from shed cages (W50, W120), but after ACTH stimulation the levels were similar in each group. Rectal temperatures after restraint were highest in foxes from W500. Fur properties of W500 and E500 foxes were poorer than those of W50 or W120 foxes.

scholarly journals Evaluation of Photocatalytic Abilities by Variation of Conductivity and Dimethyl Sulfoxide: Photocatalytically Active TiO2-coated Wire Mesh Prepared via a Double-layer Coating Method

2018 ◽  
Vol 34 (12) ◽  
pp. 1449-1453 ◽  
Author(s):  
Masanobu MORI ◽  
Tsuyoshi SUGITA ◽  
Kengo FUJII ◽  
Taiki YAMAZAKI ◽  
Mayu ISAKA ◽  
...  
Keyword(s):  
Dimethyl Sulfoxide ◽  
Double Layer ◽  
Wire Mesh ◽  
Coated Wire ◽  
Coating Method ◽  
Layer Coating

The effectiveness of a large-scale baiting campaign and an evaluation of a buffer zone strategy for fox control

2000 ◽  
Vol 27 (5) ◽  
pp. 465 ◽  
Author(s):  
P. C. Thomson ◽  
N. J. Marlow ◽  
K. Rose ◽  
N. E. Kok
Keyword(s):  
Western Australia ◽  
Vulpes Vulpes ◽  
Large Scale ◽  
Buffer Zone ◽  
Red Foxes ◽  
Population Reduction ◽  
High Level ◽  
Fox Control

The effectiveness of a baiting campaign against red foxes (Vulpes vulpes) was investigated in a rangeland area near Carnarvon, Western Australia. An area of 3180 km2 was aerially baited with dried meat baits containing 3 mg 1080 poison (5 baits km–2) in August 1995. All 45 radio-collared foxes monitored in the area were killed by baits. More than half the radio-collared foxes died within 3 days of baits being laid; the last surviving radio-collared fox died 44 days after baits were laid. The overall population reduction was estimated to be >95%. Further implications of this high level of bait uptake are discussed in relation to immunocontraceptive control of foxes, as well as for population reduction or vaccination of foxes to control rabies. Reinvasion of the baited area occurred mainly in autumn, when juvenile foxes were dispersing. The relevance of this result is discussed in relation to developing more effective baiting strategies. As part of another experiment, outer sections of the baited area were periodically re-baited as a buffer zone to reduce immigration by foxes into the central baited area; the buffer baiting proved to be very effective in preventing recolonisation of the entire baited area.

scholarly journals DESIGN AND FABRICATION OF EXPERIMENTAL SOLAR FOOD DEHYDRATOR FOR ROOT CROPS AND VEGETABLES DRYING

2021 ◽  
pp. 31-41
Author(s):  
A.S Oyerinde ◽  
◽  
J.I Braimah ◽  
Keyword(s):  
Food Production ◽  
Fossil Fuels ◽  
Food Preservation ◽  
Wire Mesh ◽  
Seasonal Fluctuations ◽  
African Countries ◽  
Root Crops ◽  
Agricultural Produce ◽  
High Level ◽  
And Storage

In the majority of African countries, agriculture represents the most important part of the economy. However, national food production still doesn't meet the requirements of the population. The decrease in food production caused by crop-failures, significant seasonal fluctuations, lack of appropriate and affordable preservation and storage systems can be resolved by way of drying. Locally, crop drying has been accomplished by burning wood and fossil fuels in ovens or outdoors drying under screened sunlight. These methods, however, have their shortcomings. The previous is expensive and not environmental friendly and the latter is vulnerable to the variability and unpredictability of the weather. This paper discusses the development of a hybrid solar food dehydrator using locally available materials like plywood, wire mesh, and a glass, to supply an honest method for food preservation that maintains a high level of flavor and nutrients, at the same time providing a convenient, compact, easy-to-store supply of Agricultural produce at a far lesser cost.

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