Composition of semen and foreskin mucosa aerobic microbiota and its impact on sperm parameters of captive collared peccaries (
            <i>Pecari</i>
            tajacu)

Santos, Caio Sérgio; Silva, Alexandre Rodrigues; Maia, Keilla Moreira; Rodrigues, Gardênia Silvâna de Oliveira; Feijó, Francisco Marlon Carneiro; Alves, Nilza Dutra; Oliveira, Moacir Franco de

doi:10.1111/jam.14663

Cited by 9 publications

(2 citation statements)

References 40 publications

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“…and Corynebacterium spp. in the foreskin and semen of peccaries was recently investigated, with the proliferation of the latter bacterium significantly associated with damage to sperm membrane integrity and some kinetic parameters (3).…”

Section: Introductionmentioning

confidence: 99%

Investigating the need for antibiotic supplementation to the extender used for semen cryopreservation in collared peccaries

et al. 2022

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The objective was to investigate the effects of semen freezing extender supplementation with antibiotics on bacterial load of semen samples, sperm functional and morphological metrics in the collared peccary. Fresh ejaculates from 10 males were extended in Tris-egg yolk-glycerol supplemented or not (control) with gentamicin (70 μg/mL) streptomycin-penicillin (SP; 1 mg/mL−1000 IU/mL) or and cryopreserved in liquid nitrogen. Bacterial load, sperm motility patterns, morphology, membrane functionality and integrity, mitochondrial activity, chromatin integrity and sperm-binding ability were evaluated in fresh and frozen-thawed samples. Regardless of the use of antibiotics, the sole cryopreservation provoked a significant decrease (P < 0.05) in bacterial load compared to fresh samples (from average values > 1 x 106 CFU/mL to <0.4 × 106 CFU/mL). Post-thawing sperm kinetic parameters were not affected by the absence or presence of different antibiotics, except for beat cross frequency that was significantly (P < 0.05) impaired by SP supplementation compared to the group without antibiotics. After thawing, sperm morphology, membrane functionality and integrity, and mitochondrial activity were also not affected by the presence or absence of antibiotics; however, a significant decrease was observed in the group without antibiotics (P < 0.05) in comparison to fresh samples. Regarding sperm-binding ability, there were no differences among the different groups. While collared peccary semen could be efficiently cryopreserved in the absence of antibiotics in the extender, the use of both gentamicin or the streptomycin-penicillin combination is recommended as effective antibiotic supplementation for a further control of bacterial loads without affecting sperm parameters.

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Section: Introductionmentioning

confidence: 99%

Investigating the need for antibiotic supplementation to the extender used for semen cryopreservation in collared peccaries

et al. 2022

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“…Some microbes are associated with a reduction in sperm quality, whereas others are associated with higher quality sperm, suggesting that certain microbes may be indicators of sperm quality [ 32 , 66 ]. A recent study conducted in peccaries (Pecari tajacu) also highlighted the relation between preputial microbiome and semen quality [ 67 ]. As mentioned earlier, more studies are warranted to discount the influence of DNA contamination on the results (as seen in research on other microbiomes).…”

Section: Links Between Microbiomes Life Stage and Reproductive Status In Males And Femalesmentioning

confidence: 99%

Interactions between reproductive biology and microbiomes in wild animal species

et al. 2021

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Many parts of the animal body harbor microbial communities, known as animal-associated microbiomes, that affect the regulation of physiological functions. Studies in human and animal models have demonstrated that the reproductive biology and such microbiomes also interact. However, this concept is poorly studied in wild animal species and little is known about the implications to fertility, parental/offspring health, and survival in natural habitats. The objective of this review is to (1) specify the interactions between animals’ reproductive biology, including reproductive signaling, pregnancy, and offspring development, and their microbiomes, with an emphasis on wild species and (2) identify important research gaps as well as areas for further studies. While microbiomes present in the reproductive tract play the most direct role, other bodily microbiomes may also contribute to facilitating reproduction. In fish, amphibians, reptiles, birds, and mammals, endogenous processes related to the host physiology and behavior (visual and olfactory reproductive signals, copulation) can both influence and be influenced by the structure and function of microbial communities. In addition, exposures to maternal microbiomes in mammals (through vagina, skin, and milk) shape the offspring microbiomes, which, in turn, affects health later in life. Importantly, for all wild animal species, host-associated microbiomes are also influenced by environmental variations. There is still limited literature on wild animals compared to the large body of research on model species and humans. However, the few studies in wild species clearly highlight the necessity of increased research in rare and endangered animals to optimize conservation efforts in situ and ex situ. Thus, the link between microbiomes and reproduction is an emerging and critical component in wild animal conservation.

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A systematic review of the microbial community in taiassuids: a One Health approach

et al. 2023

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Composition of semen and foreskin mucosa aerobic microbiota and its impact on sperm parameters of captive collared peccaries ( Pecari tajacu)

Cited by 9 publications

References 40 publications

Investigating the need for antibiotic supplementation to the extender used for semen cryopreservation in collared peccaries

Investigating the need for antibiotic supplementation to the extender used for semen cryopreservation in collared peccaries

Interactions between reproductive biology and microbiomes in wild animal species

A systematic review of the microbial community in taiassuids: a One Health approach

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