Integrated omics analysis reveals a correlation between gut microbiota and egg production in captive African penguins (Spheniscus demersus)
The objective of this study was to investigate differential microbial composition and metabolites in captive African penguins with different egg production. Fecal samples were collected from captive female African penguins during the breeding season. The results of 16 S rRNA gene sequencing showed that African penguins with different egg production had similar microbial diversities, whereas a significant difference was observed between their microbial community structure. African penguins with relatively greater egg production exhibited a higher relative abundance of Alphaproteobacteria, Rhizobiales, Bradyrhizobiaceae, Bra...
Source: Animal Reproduction Science - March 1, 2024 Category: Zoology Authors: Jingle Jiang Di Hu Enle Pei Source Type: research
Integrated omics analysis reveals a correlation between gut microbiota and egg production in captive African penguins (Spheniscus demersus)
The objective of this study was to investigate differential microbial composition and metabolites in captive African penguins with different egg production. Fecal samples were collected from captive female African penguins during the breeding season. The results of 16 S rRNA gene sequencing showed that African penguins with different egg production had similar microbial diversities, whereas a significant difference was observed between their microbial community structure. African penguins with relatively greater egg production exhibited a higher relative abundance of Alphaproteobacteria, Rhizobiales, Bradyrhizobiaceae, Bra...
Source: Animal Reproduction Science - March 1, 2024 Category: Zoology Authors: Jingle Jiang Di Hu Enle Pei Source Type: research
Integrated omics analysis reveals a correlation between gut microbiota and egg production in captive African penguins (Spheniscus demersus)
The objective of this study was to investigate differential microbial composition and metabolites in captive African penguins with different egg production. Fecal samples were collected from captive female African penguins during the breeding season. The results of 16 S rRNA gene sequencing showed that African penguins with different egg production had similar microbial diversities, whereas a significant difference was observed between their microbial community structure. African penguins with relatively greater egg production exhibited a higher relative abundance of Alphaproteobacteria, Rhizobiales, Bradyrhizobiaceae, Bra...
Source: Animal Reproduction Science - March 1, 2024 Category: Zoology Authors: Jingle Jiang Di Hu Enle Pei Source Type: research
Integrated omics analysis reveals a correlation between gut microbiota and egg production in captive African penguins (Spheniscus demersus)
The objective of this study was to investigate differential microbial composition and metabolites in captive African penguins with different egg production. Fecal samples were collected from captive female African penguins during the breeding season. The results of 16 S rRNA gene sequencing showed that African penguins with different egg production had similar microbial diversities, whereas a significant difference was observed between their microbial community structure. African penguins with relatively greater egg production exhibited a higher relative abundance of Alphaproteobacteria, Rhizobiales, Bradyrhizobiaceae, Bra...
Source: Animal Reproduction Science - March 1, 2024 Category: Zoology Authors: Jingle Jiang Di Hu Enle Pei Source Type: research
Reproductive tract morphology and symmetry of farmed common eland (Tragelaphus oryx) bulls, and their relationship with secondary sexual traits and social rank
This study provides basic information about the reproductive tract morphology, symmetry, and their relationships with secondary sexual traits, social rank, and temperament in common eland. Six eland males (2-2.5 years old; 203 ± 20 kg) were utilised for the study. Social rank, body weight and body condition score, temperament score, and horn size were determined before the animals were culled, and their reproductive tracts were collected for morphometric and histological evaluation. Results indicate relatively low asymmetry in bilateral reproductive tract components. Individual traits of eland bulls such as age, body weig...
Source: Animal Reproduction Science - February 28, 2024 Category: Zoology Authors: Jerico Consolacion Francisco Ceacero Abubakar Sadiq Musa Veit Ny Radim Kotrba Josef Illek Mi ša Škorič Tersia Needham Source Type: research
Genetic parameters for bull effects on in vitro embryo production (IVP) and relationship between semen quality traits and IVP performance
This study estimates genetic parameters for bull effects on IVP performance traits including blastocyst rate, hatching rate and an index trait combining Blastocyst rate, Kinetic Score, and Morphology score (BL_M_K). The IVP experiments were performed using oocytes aspirated from slaughterhouse ovaries from Holstein cows, fertilized with semen from 123 Holstein bulls. A total of 77 in vitro fertilization (IVF) experiments with 163 records (different IVF groups) were available for the analysis. The results indicate low to moderate heritability and moderate to high repeatability estimates for bull effects on IVP performance t...
Source: Animal Reproduction Science - February 28, 2024 Category: Zoology Authors: G Gebreyesus J B Secher M S Lund K Kupisiewicz M Ivask T Hallap P P ärn G Su Source Type: research
Reproductive tract morphology and symmetry of farmed common eland (Tragelaphus oryx) bulls, and their relationship with secondary sexual traits and social rank
This study provides basic information about the reproductive tract morphology, symmetry, and their relationships with secondary sexual traits, social rank, and temperament in common eland. Six eland males (2-2.5 years old; 203 ± 20 kg) were utilised for the study. Social rank, body weight and body condition score, temperament score, and horn size were determined before the animals were culled, and their reproductive tracts were collected for morphometric and histological evaluation. Results indicate relatively low asymmetry in bilateral reproductive tract components. Individual traits of eland bulls such as age, body weig...
Source: Animal Reproduction Science - February 28, 2024 Category: Zoology Authors: Jerico Consolacion Francisco Ceacero Abubakar Sadiq Musa Veit Ny Radim Kotrba Josef Illek Mi ša Škorič Tersia Needham Source Type: research
Genetic parameters for bull effects on in vitro embryo production (IVP) and relationship between semen quality traits and IVP performance
This study estimates genetic parameters for bull effects on IVP performance traits including blastocyst rate, hatching rate and an index trait combining Blastocyst rate, Kinetic Score, and Morphology score (BL_M_K). The IVP experiments were performed using oocytes aspirated from slaughterhouse ovaries from Holstein cows, fertilized with semen from 123 Holstein bulls. A total of 77 in vitro fertilization (IVF) experiments with 163 records (different IVF groups) were available for the analysis. The results indicate low to moderate heritability and moderate to high repeatability estimates for bull effects on IVP performance t...
Source: Animal Reproduction Science - February 28, 2024 Category: Zoology Authors: G Gebreyesus J B Secher M S Lund K Kupisiewicz M Ivask T Hallap P P ärn G Su Source Type: research
Reproductive tract morphology and symmetry of farmed common eland (Tragelaphus oryx) bulls, and their relationship with secondary sexual traits and social rank
This study provides basic information about the reproductive tract morphology, symmetry, and their relationships with secondary sexual traits, social rank, and temperament in common eland. Six eland males (2-2.5 years old; 203 ± 20 kg) were utilised for the study. Social rank, body weight and body condition score, temperament score, and horn size were determined before the animals were culled, and their reproductive tracts were collected for morphometric and histological evaluation. Results indicate relatively low asymmetry in bilateral reproductive tract components. Individual traits of eland bulls such as age, body weig...
Source: Animal Reproduction Science - February 28, 2024 Category: Zoology Authors: Jerico Consolacion Francisco Ceacero Abubakar Sadiq Musa Veit Ny Radim Kotrba Josef Illek Mi ša Škorič Tersia Needham Source Type: research
Genetic parameters for bull effects on in vitro embryo production (IVP) and relationship between semen quality traits and IVP performance
This study estimates genetic parameters for bull effects on IVP performance traits including blastocyst rate, hatching rate and an index trait combining Blastocyst rate, Kinetic Score, and Morphology score (BL_M_K). The IVP experiments were performed using oocytes aspirated from slaughterhouse ovaries from Holstein cows, fertilized with semen from 123 Holstein bulls. A total of 77 in vitro fertilization (IVF) experiments with 163 records (different IVF groups) were available for the analysis. The results indicate low to moderate heritability and moderate to high repeatability estimates for bull effects on IVP performance t...
Source: Animal Reproduction Science - February 28, 2024 Category: Zoology Authors: G Gebreyesus J B Secher M S Lund K Kupisiewicz M Ivask T Hallap P P ärn G Su Source Type: research
An updated review on the application of proteomics to explore sperm cryoinjury mechanisms in livestock animals
Anim Reprod Sci. 2024 Feb 21;263:107441. doi: 10.1016/j.anireprosci.2024.107441. Online ahead of print.ABSTRACTThis comprehensive review critically examines the application of proteomics in understanding sperm cryoinjury mechanisms in livestock animals, in the context of the widespread use of semen cryopreservation for genetic conservation. Despite its global adoption, cryopreservation often detrimentally affects sperm quality and fertility due to cryoinjuries. These injuries primarily arise from ice crystal formation, osmotic shifts, oxidative stress, and the reorganization of membrane proteins and lipids during freezing ...
Source: Animal Reproduction Science - February 27, 2024 Category: Zoology Authors: Allai Larbi Chunyan Li Guobo Quan Source Type: research
Prolonged cold-preservation of domestic cat ovarian tissue is improved by extracellular solution but impaired by the fragmentation of ovary
Anim Reprod Sci. 2024 Feb 10;263:107431. doi: 10.1016/j.anireprosci.2024.107431. Online ahead of print.ABSTRACTFor domestic cats ovaries, recommended cold-storage limit is 24 h in Phosphate Buffered Saline (PBS) or Dulbecco`s PBS (DPBS). Here, we attempted to verify wheatear cat ovaries may benefit from more complex solutions during prolonged cold-storage (>24 h). First, the preservation capabilities of extracellular (SP+), intracellular (UW) solutions and DPBS supplemented with glutathione (DPBS+GSH) were compared using ovary fragments from the same ovary (n=10). Intact ovary stored in DPBS served as a control. Ovaries...
Source: Animal Reproduction Science - February 27, 2024 Category: Zoology Authors: Olga Rodak Manuel David Peris-Diaz Piotr Dzi ęgiel Aleksandra Piotrowska Agnieszka Partyka Wojciech Ni żański Source Type: research
Influence of photoperiod and exogenous melatonin on testis morpho-physiology of sexually mature guinea fowl (Numida meleagris)
Anim Reprod Sci. 2024 Jan 10;263:107410. doi: 10.1016/j.anireprosci.2024.107410. Online ahead of print.ABSTRACTThe biological effects of simulated photoperiod and melatonin on the control of reproduction of guinea fowls (Numida meleagris) are not well understood. Herein, thirty (30) sexually mature guinea fowl cocks were randomly assigned to 1-6 groups (n = 5) and subjected to different photoperiodic regimes in the presence or absence of exogenous melatonin (Mel; 1 BW/day, i/m) for eight weeks. Testes of the euthanized cocks were processed for gross morphology, histological, histochemical, and oxidative stress markers. Tes...
Source: Animal Reproduction Science - February 25, 2024 Category: Zoology Authors: Innocent J Gosomji Umar M Bello Tavershima Dzenda Abdullahi Baso Augustine Arukwe Tom A Aire Source Type: research
Influence of photoperiod and exogenous melatonin on testis morpho-physiology of sexually mature guinea fowl (Numida meleagris)
Anim Reprod Sci. 2024 Jan 10;263:107410. doi: 10.1016/j.anireprosci.2024.107410. Online ahead of print.ABSTRACTThe biological effects of simulated photoperiod and melatonin on the control of reproduction of guinea fowls (Numida meleagris) are not well understood. Herein, thirty (30) sexually mature guinea fowl cocks were randomly assigned to 1-6 groups (n = 5) and subjected to different photoperiodic regimes in the presence or absence of exogenous melatonin (Mel; 1 BW/day, i/m) for eight weeks. Testes of the euthanized cocks were processed for gross morphology, histological, histochemical, and oxidative stress markers. Tes...
Source: Animal Reproduction Science - February 25, 2024 Category: Zoology Authors: Innocent J Gosomji Umar M Bello Tavershima Dzenda Abdullahi Baso Augustine Arukwe Tom A Aire Source Type: research
Influence of photoperiod and exogenous melatonin on testis morpho-physiology of sexually mature guinea fowl (Numida meleagris)
Anim Reprod Sci. 2024 Jan 10;263:107410. doi: 10.1016/j.anireprosci.2024.107410. Online ahead of print.ABSTRACTThe biological effects of simulated photoperiod and melatonin on the control of reproduction of guinea fowls (Numida meleagris) are not well understood. Herein, thirty (30) sexually mature guinea fowl cocks were randomly assigned to 1-6 groups (n = 5) and subjected to different photoperiodic regimes in the presence or absence of exogenous melatonin (Mel; 1 BW/day, i/m) for eight weeks. Testes of the euthanized cocks were processed for gross morphology, histological, histochemical, and oxidative stress markers. Tes...
Source: Animal Reproduction Science - February 25, 2024 Category: Zoology Authors: Innocent J Gosomji Umar M Bello Tavershima Dzenda Abdullahi Baso Augustine Arukwe Tom A Aire Source Type: research
