THE PERIODONTIUM OF GERMFREE DOGS - ScienceDirectMax A. ListgartenJames B. HeneghanGermfree Research
摘要: Presents a study that examined the effect of age, breed, sex and time period on skin biophysical parameters for dogs fed a nutritionally complete and balanced canned food for adult dogs. Methodology; Results and discussion.DOI: 10.1093/jn/132.6.1695s 年份: 2002 ...
Standing on their back legs with huge, expressive eyes, Wain’s cat subjects often reflect their view, offering a unique social observation on the period. In addition to Wain’s contributions, Hughes explores the broader 19th-century interest in cats. She suggests that the mystery surrounding ...
Survival of methanogens in airdried paddy field soil and their heat tolerance Population density of methanogens in moist paddy field soil during the cultivation period of rice was usually at the order of 105 MPN g1 (dry soil). When t... A Ueki,K Ono,A Tsuchiya,... - Anaerobic Digestion...
African wild dogs (Lycaon pictus) are endangered largely because their population density is low under all conditions. Interspecific competition with large... S Creel,NM Creel - 《Conservation Biology》 被引量: 866发表: 1996年 Social Organization of African Wild Dogs (Lycaon pictus) on the Sereng...
Using an apparatus similar to the one used by Gregg and McPheeters in their Chicago experiments with raccoons, the authors trained a dog, a cat, and a raccoon to discriminate between combinations of colors which were not equated for brightness differences during the training period. When the "...
the genomic introgression of the ancestor of the Japanese wolf to the East Eurasian lineage of dogs must have occurred before the establishment of the sled dog lineage at least 9500 years ago (before the radiocarbon date) during the transitional period from the Pleistocene to the Holocene and sho...
[184], evidence indicates that this protozoan may infect dogs at any period of the year in some regions, regardless of the season [120]. On the other hand, myiasis byC. hominivoraxin dogs and cats presents a clearly defined seasonal pattern in Brazil, peaking during the hottest months of ...
The behaviour of individuals depends on a living interactive partner that is difficult to manipulate and control for a longer period. Due to their variability in experience, personality and underlying biases, the interactive partners are unlikely to behave the same way with a test subject repeatedly...
Old dogs were just as successful in tracking the doors where their owner disappeared as young dogs, even when they looked at their owner for a shorter period of time. More experimental studies on the social aspect of cognitive aging are clearly needed. A recent single-breed (border collie) ...