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At least 19 recordsLinked to original sources
PubMed1977

Hybrid cricket auditory behavior: evidence for genetic coupling in animal communication.

Male field crickets produce species-specific and stereotyped calling songs. Conspecific females are attracted to the call. Reciprocal F1 hybrid females prefer the calls of sibling hybrids to reciprocal hybrids. Discrimination is probably based on temporal pattern and not carrier frequency of the call. The results imply that production of song by males and its detection by females have a common genetic basis.

Animal Communication↗
PubMed1979

[The Göttinger minipig as a laboratory animal. 5. Communication: cardiac output, its regional distribution and organ blood flow (author's transl)].

In 16 juvenile minipigs weighing 3.08 kg an average cardiac output of 23 ml/100 g body weight was measured with the dye-dilution method. The microsphere technique was used to assess distribution of cardiac output and organ blood flow. In 12 adult minipigs with a mean body weight of 21.5 kg the cardiac output of 14 ml/100 g body weight was measured with an electromagnetic flowmeter. The values of total systemic and organic blood flow correlated well with those of man and partly with those of other laboratory animals.

Animals↗
PubMed1977

Technetium-99m phytate as a bone-marrow imaging agent: biodistribution studies in animals: concise communication.

Technetium-99m phytate has been suggested as a bone-marrow imaging agent. This article compares the biodistribution of Tc-99m labeled "bone marrow" phytate, sulfur colloid, and diphosphonate in young rats and rabbits. Autoclaved bone marrow phytate revealed significant long-base depositon, but 96% of this activity was associated with compact bone and only 4% with bone marrow. This distribution is similar to that of diphosphonate, but significantly different from that of sulfur colloid. Technetium-99m-phytate is not recommended as a bone-marrow imaging agent.

Animals↗
PubMed1977

[The Göttinger minipig as a laboratory animal. 4. Communication: respiration parameters (author's transl)].

The following parameters were determined: Rate of breathing (f): 31.95 +/- 6.73/min. Minute volume (V): 5.11 +/- 6.73 liter/min. Tidal volume (VT): 0.166 +/- 0.053 liter. Ratio expiratory to inspiratory time Et/It : 1.04 +/- 0.18. Physiological dead space (VD): 0.061 +/- 0.024 liter. Dead space quotient (VD)/VT): 29.92 +/- 1.53%. Dynamic lung compliance (C dyn): 0.06 +/- 0.06 liter/cm H2O. Maximum interpleural negative pressure during inspiration (max. neg. Ppl. Insp.): 12.00 +/- 4.06 cm H2O. Minimum interpleural negative respectively maximum interpleural positive pressure during expiration (min. neg. or pos. Ppl. Exp.): +0.07 +/- 6.53 cm H2O. Maximum change of interpleural pressure (delta Ppl. max): 11.97 +/- 3.18 cm H2O.

Animals↗
PubMed1978

[Understanding implicit behavior].

The point of departure of the present paper is the comprobation that the visible behaviour of an individual conveys information about his internal state to others, yet the description of this information transfer is limited by an insufficient conceptual framework. The most important historical approaches to the field of expressive behaviour are discussed. The peculiarity of language in information transfer as an "explicit" system of rules is constrasted with all the other kinds of behaviour which also play "informative" and "communicative" roles. For these the concept of "implicit" system is proposed and discussed. It is further shown that a strict distinction between "implicit" and "explicit" is not possible for behavioural manifestations, but rather they constitute poles of a continuum in which all communicative modes could be incorporated. Dichotomies most commonly used in human and animal communication and interaction researach are compared with the presented implicit - explicit dichotomy. The advantages of the latter are seen in the semantic clarification it could provide, thus leading to a somewhat clearer approach to different forms of behaviour research.

Communication↗
PubMed1976

[The world-wide importance of animal epidemics (author's transl)].

At present, roughly 64 million horses, 1.2 billion cattle, 1 billion sheep, 670 million pigs and some billion fowl are kept and large quantities of animal products are produced. Animal breeding still varies widely with regard to both geographical distribution and efficiency. The protection of animal keeping in all countries of the world from losses due to disease and protein deficiency as the main cause of malnutrition constitutes an economical and sanitary problem of primary importance. Veterinary medicine is called upon to help to solve it. The losses (direct and indirect) of animals caused by infectious and invasive disease are extremely high. All in all, the losses of animals due to diseases have been reduced by 15 to 20 per cent of the gross production in many countries, and they can be reduced further. However, in countries with less efficient stock farming, losses run into 30 to 40 per cent and, if no control measures are adopted, are likely to increase considerably. Communicable animal diseases can be propagated over large distances in many ways by direct or indirect routes. As public interests are involved, the diseases must be controlled by measures financed by the state. In the light of the multivarious economic interconnections between the countries of the world, cooperation on an international basis is thus needed.

Animal Husbandry↗
PubMed2026

Listening forward: emerging roles of bioacoustics in ecology, evolution, and conservation.

Bioacoustics is increasingly shifting from a mostly descriptive pursuit to one that can anticipate ecological change. Recent innovations-from autonomous recording units and edge-computing sensors to speech-inspired feature extraction and machine-learning techniques like transfer learning, unsupervised discovery, and explainable AI-are transforming the study of animal communication. These advances let us work at scales previously difficult to imagine. Automated species recognition, individual identification, and even tracking cultural evolution over decades are now within reach. Entire ecosystem soundscapes can be mapped with unprecedented resolution. Looking ahead, global listening networks, adaptive acoustic indices, and live biodiversity dashboards seem increasingly realistic. We may soon build digital models that simulate communication networks under future scenarios. Closer integration with genomics, physiology, and robotics could link vocal traits to their genetic, physiological, and ecological drivers. Challenges remain, including data governance, acoustic privacy, and equitable access to the planet's sonic heritage. Bioacoustics may be on the way to becoming a predictive, integrative science - one particularly well suited to monitoring, interpreting, and helping safeguard life's communication systems in a rapidly changing world.

Animals↗
PubMed1976

Animal behavior as a subject for veterinary students.

Knowledge of animal behavior is an important asset for the veterinarian; therefore a course in veterinary animal behavior is offered at the New York State College of Veterinary Medicine as an elective. The course emphasizes the behavior of those species of most interest to the practicing veterinarian: cats, dogs, horses, cows, pigs and sheep. Dominance heirarchies, animal communication, aggressive behavior, sexual behavior and maternal behavior are discussed. Play, learning, diurnal cycles of activity and sleep, and controls of ingestive behavior are also considered. Exotic and zoo animal behaviors are also presented by experts in these fields. The critical periods of canine development are related to the optimum management of puppies. The behavior of feral dogs and horses is described. The role of the veterinarian in preventing cruelty to animals and recognition of pain in animals is emphasized. Whenever possible behavior is observed in the laboratory or on film.

Aggression↗