Prenatal histomorphological development of the reticulum in fallow deer (Dama dama)

Abstract

The fallow deer (Dama dama) is a cervid species native to the Mediterranean. The females reach their adult size between the 4th and 6th year, while the males do so from the 5th to 9th year (McElligott et al., 2001). It is a polygamous species; reproductive behavior begins to show at 16 months, mating every year during September and October. The females have a gestation length of eight months and a single calf is born in spring (Baker et al., 2017). The ruminant stomach is particularly remarkable for its ability to transform low-quality forage into products of great nutritional value (Lombardi, 2005). In order to meet its functional needs, the ruminant stomach has developed four separate compartments, each with its own morphological particularities reflecting its morphological and functional adaption to the ingestion, processing and digestion of plant material. During prenatal life, however, the ruminant stomach undergoes certain morphological changes in order to meet func

The early life immune dynamics and cellular drivers at single-cell resolution in lamb forestomachs and abomasum

“…For example, fibroblasts produce extracellular matrix to support the structure of mucosal epithelium [ 54 ]. The smooth muscle cells were identified in reticulum in our results, which is consistent with the histomorphology of the reticulum, where the muscularis mucosae is present in the primary reticular crest of reticulum [ 55 ]. However, although recent studies have revealed the cell types of the rumen or four stomachs mucosa using scRNA-seq analysis [ 13 , 14 , 50 , 51 ], the spatial resolution are limited.…”

The embryonic development of the bovine stomach revisited

“…In addition, the observation made in postnatal calves that the length and density of mesothelial microvilli are increased in areas that are more exposed to friction (Furubayashi et al, ) could not be corroborated in our prenatal specimens. Various studies investigated the histogenesis of the prenatal serosa of ruminants but did not study its mesothelial surface (Franco, Masot, et al, ; Franco, Masot, & Redondo, , ; Franco, Redondo, et al, ; Franco et al, , , ; Franco, Robina, Guillén, et al, ; Franco, Rodriguez, et al, ; García et al, ; García, Masot, et al, ; García, Rodriguez, et al, ; Masot et al, ; Redondo et al, , , ; Singh et al, ; Vivo et al, ). We consider it very likely that the mesothelium in our specimens was not yet differentiated enough to show consistent regional differences.…”

“…These studies provided preliminary insight into the morphogenesis and histogenesis of the stomach of domestic ruminants but also resulted in strong debate. Later, formerly unanswered questions were addressed in studies of various ruminants with more recent technologies (Al Masri et al, ; Becker, Dix Arnold, & Marshall, ; Franco, Masot, Aguado, Gómez, & Redondo, ; Franco, Masot, & Redondo, , ; Franco, Redondo, & Masot, ; Franco, Regodón, Robina, & Redondo, ; Franco, Robina, Guillén, Mayoral, & Redondo, ; Franco et al, , ; Franco, Rodriguez, Mayoral, Guillén, & Robina, ; García, Masot, Franco, Gázquez, & Redondo, , ,, , ; García, Rodriguez, Masot, Franco, & Redondo, ; Gupta, Farooqui, Archana, & Kumar, ; Jorquera & Goicoechea, ; Kano, Fukaya, Asari, & Eguchi, ; Marko, Kressin, & Schnorr, ; Masot, Franco, & Redondo, ; McGeady & Sack, ; Molinari & Goicoechea, ; Molinari & Jorquera, ; Mutoh & Wakuri, ; Panchamukhi & Srivastava, ; Redondo, Franco, & Masot, ; Redondo, García, Ortega, Peña, & Masot, ; Redondo, Masot, García, & Franco, ; Singh, Roy, & Sethi, ; Takasaki, Kitamura, Hondo, Cottrell, & Yamada, ; Vivo & Robina, , , ; Vivo et al, ). Jorquera and Goicoechea () published the most systematic and comprehensive overview of the development of the bovine stomach.…”

Dynamics in the hemomicrocirculatory bed of the cattle honeycomb bag

“…The variety of existing morphophysiological systems of ruminants can be considered as a pool from which some traits can be selected as targets for breeding programs for domestic ruminants [3,4,5,6]. The use of industrial technologies in dairy farming involves the thorough grinding of feeds, that helps to improve the efficiency of digestion, but affects the relief of the mucous membranes of the pre-ventricles, especially the honeycomb bag that performs the sorting function [7,8,9]. The mucosa of the adult animals' honeycomb bag forms first-order ridges and may have from four to eight facets where lower second-and third-order ridges are formed.…”