Behavioral reactions to gustatory stimuli in young chicks (<i>Gallus gallus domesticus</i>)

Ganchrow, Judith R.; Steiner, Jacob E.; Bartana, Atida

doi:10.1002/dev.420230202

Cited by 59 publications

(46 citation statements)

References 44 publications

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“…Tas1r2 also is known to be pseudogenized in chicken, tongueless Western clawed frogs, and vampire bats (11,15). The loss of the sweet taste receptor in chicken and vampire bats is consistent with their sweet insensitive behavior (16,17). It is yet to be established how Western clawed frogs respond to sweeteners.…”

mentioning

confidence: 99%

Major taste loss in carnivorous mammals

Jiang

Josue

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

250

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Mammalian sweet taste is primarily mediated by the type 1 taste receptor Tas1r2/Tas1r3, whereas Tas1r1/Tas1r3 act as the principal umami taste receptor. Bitter taste is mediated by a different group of G protein-coupled receptors, the Tas2rs, numbering 3 to ∼66, depending on the species. We showed previously that the behavioral indifference of cats toward sweet-tasting compounds can be explained by the pseudogenization of the Tas1r2 gene, which encodes the Tas1r2 receptor. To examine the generality of this finding, we sequenced the entire coding region of Tas1r2 from 12 species in the order Carnivora. Seven of these nonfeline species, all of which are exclusive meat eaters, also have independently pseudogenized Tas1r2 caused by ORF-disrupting mutations. Fittingly, the purifying selection pressure is markedly relaxed in these species with a pseudogenized Tas1r2. In behavioral tests, the Asian otter (defective Tas1r2) showed no preference for sweet compounds, but the spectacled bear (intact Tas1r2) did. In addition to the inactivation of Tas1r2, we found that sea lion Tas1r1 and Tas1r3 are also pseudogenized, consistent with their unique feeding behavior, which entails swallowing food whole without chewing. The extensive loss of Tas1r receptor function is not restricted to the sea lion: the bottlenose dolphin, which evolved independently from the sea lion but displays similar feeding behavior, also has all three Tas1rs inactivated, and may also lack functional bitter receptors. These data provide strong support for the view that loss of taste receptor function in mammals is widespread and directly related to feeding specializations.diet | sweetener I t is widely believed that most mammals perceive five basic taste qualities: sweet, umami, bitter, salty, and sour. The receptors for sweet, umami and bitter tastes are G protein-coupled receptors (GPCRs) (1). Sweet taste is mediated largely by a heteromer of two closely related Tas1r (type 1 taste receptor) family GPCRs: Tas1r2 and Tas1r3 (2-5). Tas1r1, another member of the Tas1r family, in combination with Tas1r3, forms an umami taste receptor (6). Tas1r receptors are class C GPCRs. Unlike sweet and umami tastes, bitter taste is mediated by Tas2r family GPCRs, which belong to class A GPCRs and are structurally unrelated to Tas1r family receptors (7,8). The genes encoding Tas2r receptors, the Tas2r genes, differ substantially in gene number and primary sequences among species, most likely reflecting the likelihood that these genes are required for detecting toxic or harmful substances in a species' ecological niche (9-11).Direct evidence for a close correlation between taste function and feeding ecology comes from work on domestic and wild Felidae. Cats, obligate carnivores, are behaviorally insensitive to sweet-tasting compounds (12, 13). We proposed that this behavioral insensitivity was a consequence of the pseudogenization of Tas1r2 (14). Tas1r2 also is known to be pseudogenized in chicken, tongueless Western clawed frogs, and vampire bats (11,15). The loss of th...

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mentioning

confidence: 99%

Major taste loss in carnivorous mammals

Jiang

Josue

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

250

201

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“…The response of chickens to different tastes was found to be stable from the growth period until sexual maturity (Ganchrow et al, 1990). Furthermore, differences were reported between hens types both in the number of taste buds and in taste sensitivity (Kudo et al, 2008;Kudo et al, 2010).…”

Section: Pigsmentioning

confidence: 95%

Perception of environment in farm animals – A review

Adamczyk

Górecka-Bruzda

Nowicki

et al. 2015

Annals of Animal Science

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Perception of the environment by farm animals is fundamental for expression of behaviour and of their adaptation to different environmental conditions. from a breeding-environmental perspective, perception becomes increasingly important when a production system negatively impacts on animals such that their normal expression of behaviour is compromised. therefore, research on the perceptual abilities of farm animals is of crucial importance to understand the animalenvironment relationship. this review is focused on research related to sensory perception of farm animals. It should be stressed that the world of animal senses is very difficult to explore, we have limited knowledge of the complexity of the animal's ability to perceive and process environmental stimuli.

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“…These specific affective reactions to differing taste stimuli are strikingly similar across cultures [25,34,36] and species [27,[37][38][39][40], also suggesting a basic biological underpinning for the flavors and foods youngsters prefer and avoid. Thus, when we examine children's dietary patterns from the perspective of the ontogeny of taste development, the foods children naturally prefer are not surprising and reflect their basic biology.…”

Section: Biological Substrates Of Flavor Learningmentioning

confidence: 99%

Early Feeding: Setting the Stage for Healthy Eating Habits

Mennella

Ventura²

2011

Nestlé Nutrition Institute Workshop Series

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Food habits, an integral part of all cultures, have their beginnings during early life. This chapter reviews the development of the senses of taste and smell, which provide information on the flavor of foods, and discusses how children's innate predispositions interact with early-life feeding experiences to form dietary preferences and habits. Young children show heightened preferences for foods that taste sweet and salty and rejection of that which tastes bitter. These innate responses are salient during development since they likely evolved to encourage children to ingest that which is beneficial, containing needed calories or minerals, and to reject that which is harmful. Early childhood is also characterized by plasticity, partially evidenced by a sensitive period during early life when infants exhibit heightened acceptance of the flavors experienced in amniotic fluid and breast milk. While learning also occurs with flavors found in formulae, it is likely that this sensitive period formed to facilitate acceptance of and attraction to the flavors of foods eaten by the mother. A basic understanding of the development and functioning of the chemical senses during early childhood may assist in forming evidence-based strategies to improve children's diets.

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Behavioral reactions to gustatory stimuli in young chicks (Gallus gallus domesticus)

Cited by 59 publications

References 44 publications

Major taste loss in carnivorous mammals

Major taste loss in carnivorous mammals

Perception of environment in farm animals – A review

Early Feeding: Setting the Stage for Healthy Eating Habits

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