Feeding behaviour and mechanisms in domestic birds.

Bels, Vincent; Baussart, Sabine

doi:10.1079/9781845930639.0033

Cited by 12 publications

(5 citation statements)

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“…The aim of the present study is to perform, for the first time, an immunohistochemical (IHC) and molecular analysis of alpha-keratin and keratin-associated proteins, namely filaggrin and loricrin, as well as TGM-1, in the para- and orthokeratinized epithelium of the lingual mucosa in the domestic duck, goose, and turkey. These avian species are characterized by a different microstructure of the lingual mucosa and diverse food strategies regarding consumed food (plant food immersed in water, green parts of terrestrial plants, grains), mechanisms of food intake (filter-feeding, grazing, pecking), and food transport to the esophagus (under-tongue transport, over tongue transport, catch-and-throw transport) [ 27 , 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Alpha-Keratin, Keratin-Associated Proteins and Transglutaminase 1 Are Present in the Ortho- and Parakeratinized Epithelium of the Avian Tongue

Skieresz‐Szewczyk

Jackowiak

Skrzypski

2022

Cells

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The lingual mucosa in birds is covered with two specific types of multilayered epithelia, i.e., the para- and orthokeratinized epithelium, that differ structurally and functionally. Comprehensive information on proteins synthesized in keratinocyte during their cytodifferentiation in subsequent layers of multilayered epithelia in birds concerns only the epidermis and are missing the epithelia of the lingual mucosa. The aim of the present study was to perform an immunohistochemical (IHC) and molecular analysis (WB) of bird-specific alpha-keratin, keratin-associated proteins (KAPs), namely filaggrin and loricrin, as well as transglutaminase 1 in the para- and orthokeratinized epithelium covering the tongue in the domestic duck, goose, and turkey. The results reveal the presence of alpha-keratin and KAPs in both epithelia, which is a sign of the cornification process. In contrast to the epidermis, the main KAPs involved in the cornification process of the lingual epithelia in birds is loricrin. Stronger expression with KAPs and transglutaminase 1 in the orthokeratinized epithelium than in the parakeratinized epithelium may determine the formation of a more efficient protective mechanical barrier. The presence of alpha-keratin, KAPs, and transglutaminase 1 epitopes characteristic of epidermal cornification in both types of the lingual epithelia may prove that they are of ectodermal origin.

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Section: Introductionmentioning

confidence: 99%

Alpha-Keratin, Keratin-Associated Proteins and Transglutaminase 1 Are Present in the Ortho- and Parakeratinized Epithelium of the Avian Tongue

Skieresz‐Szewczyk

Jackowiak

Skrzypski

2022

Cells

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“…Moreover, other contributions figured out that anseriformes developed a highly specialized beak and tongue that are efficient in their feeding system including grazing, pecking, and filtering food (Iwasaki et al, 1997; Bels & Baussart, 2006; Hassan et al, 2010; Jackowiak et al, 2011; Skieresz-Szewczyk & Jackowiak, 2016; Abumandour et al, 2019). In addition, the tongue of anseriformes has a median spoon-like prominence that forms a distinctive lingual nail for lifting grains and seeds, besides a filtration apparatus that made up of several types of filiform and conical papillae (Iwasaki et al, 1997; Jackowiak et al, 2011; Abumandour et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Biological Aspects of the Tongue and Oropharyngeal Cavity of the Eurasian Collared Dove (Streptopelia decaocto, Columbiformes, Columbidae): Anatomical, Histochemical, and Ultrastructure Study

et al. 2021

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We characterized the morphological and anatomical adaptations of the lingual microstructures of the Eurasian collared dove and discussed their implications for its dietary niche. We analyzed tongues of nine S. decaocto using histological, histochemical, stereomicroscopic, and scanning electron microscopic techniques. Our findings showed that the tongue is relatively short with a tapered apex that carries a terminal lingual nail. However, the lingual body has median scales and is bordered laterally by filiform papillae. Further, the tongue body bears a distinctive papillary crest. The tongue root is nonpapillate and infiltered with orifices of the posterior salivary glands. The bulky laryngeal mound has a circular glottic fissure, carrying a single row of papillae at the rear edge. Concurrently, our histological and histochemical findings demonstrate that the tongue has taste buds, anterior and posterior salivary glands, along with an elongated entoglossum that extends from lingual apex to root. Besides, ovoid and globular mucous glands displayed intense alcianophilic reactions. More substantially, the palate is made up of three palatine ridges with a caudal choanal cleft that was bounded by two rows of palatine papillae. Our data indicate multiple and novel structural variations for the lingual and palatal sculptures coopted for their feeding style.

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“…Among neognathous birds, the Anseriformes are characterized by morphological specialization of tongue and beak which are involved in as many as three mechanisms of feeding, such as grazing, pecking and filtering food from water, and two types of transport called the under tongue transport and over tongue transport (Kooloos 1986; Kooloos et al 1989; Van der Leeuw et al 2003; Bels and Baussart 2006). In the order of Anseriformes, two subfamilies can be distinguished: Anserinae and Anatidae.…”

Section: Introductionmentioning

confidence: 99%

Morphofunctional study of the tongue in the domestic duck (Anas platyrhynchos f. domestica, Anatidae): LM and SEM study

Skieresz‐Szewczyk

Jackowiak

2016

Zoomorphology

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The domestic duck, as a representative of birds living in the water, is considered as a specialist filter-feeder. Behavioral observations of foraging revealed that these birds also use a terrestrial feeding mechanism such as grazing and pecking. This study examined the entirety of the lingual mucosa in relation to the structural adaptations required for this range of feeding activities. The structures on the lateral surfaces of the tongue, the conical and filiform papillae, constitute the food filtration apparatus. The process of pecking involves the spatula-shaped apex of the tongue and a specific horny plate—the lingual nail. In the grazing mechanism, large conical papillae and lamellae in the beak are required. Structures engaged in intra-oral transport include the median groove, lingual combs, the rostral border of the lingual prominence and distinct rows of conical papillae on the lingual prominence. Two types of keratinized epithelia, the ortho- and parakeratinized epithelium, as well as nonkeratinized epithelium cover individual areas of the tongue. The rostral and caudal lingual glands present in the lamina propria of the body, lingual prominence and root of the tongue produce mucus. The specific arrangement of Grandry and Herbst corpuscles form so-called bill-tongue organ monitoring food transportation. Our research confirm that the lingual mucosa in domestic duck is characterized by microstructural species-specific modifications of particular areas of the tongue, which is formed not only under the influence of the filtering mechanism, but also by terrestrial feeding mechanisms such as grazing or pecking.

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Feeding behaviour and mechanisms in domestic birds.

Cited by 12 publications

References 0 publications

Alpha-Keratin, Keratin-Associated Proteins and Transglutaminase 1 Are Present in the Ortho- and Parakeratinized Epithelium of the Avian Tongue

Alpha-Keratin, Keratin-Associated Proteins and Transglutaminase 1 Are Present in the Ortho- and Parakeratinized Epithelium of the Avian Tongue

Biological Aspects of the Tongue and Oropharyngeal Cavity of the Eurasian Collared Dove (Streptopelia decaocto, Columbiformes, Columbidae): Anatomical, Histochemical, and Ultrastructure Study

Morphofunctional study of the tongue in the domestic duck (Anas platyrhynchos f. domestica, Anatidae): LM and SEM study

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