In vitro characteristics of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and TLR7/8 ligand R848
This study aimed to evaluate some in vitro characteristics (DNA quantity, kinematic parameters and enzymes activity) of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and toll-like receptors (TLR)7/8 ligand R848. The ejaculates from six rams were collected by artificial vagina and subjected to a computer-assisted semen analysis (CASA). Total motility and percentage of the sperms with rapid and medium progressivity or non-progressivity in whole ejaculates and in X and Y fractions were analyzed. Activity of the enzymes ALP, GGT, CK, LDH and accumulation of lactate in the seminal plasma of ejacul...
Source: Animal Reproduction Science - March 10, 2024 Category: Zoology Authors: Stanimir Yotov Desislava Abadjieva Anatoli Atanasov Boyana Ivanova Paulina Taushanova Ivan Fasulkov Elena Kistanova Source Type: research
In vitro characteristics of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and TLR7/8 ligand R848
This study aimed to evaluate some in vitro characteristics (DNA quantity, kinematic parameters and enzymes activity) of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and toll-like receptors (TLR)7/8 ligand R848. The ejaculates from six rams were collected by artificial vagina and subjected to a computer-assisted semen analysis (CASA). Total motility and percentage of the sperms with rapid and medium progressivity or non-progressivity in whole ejaculates and in X and Y fractions were analyzed. Activity of the enzymes ALP, GGT, CK, LDH and accumulation of lactate in the seminal plasma of ejacul...
Source: Animal Reproduction Science - March 10, 2024 Category: Zoology Authors: Stanimir Yotov Desislava Abadjieva Anatoli Atanasov Boyana Ivanova Paulina Taushanova Ivan Fasulkov Elena Kistanova Source Type: research
In vitro characteristics of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and TLR7/8 ligand R848
This study aimed to evaluate some in vitro characteristics (DNA quantity, kinematic parameters and enzymes activity) of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and toll-like receptors (TLR)7/8 ligand R848. The ejaculates from six rams were collected by artificial vagina and subjected to a computer-assisted semen analysis (CASA). Total motility and percentage of the sperms with rapid and medium progressivity or non-progressivity in whole ejaculates and in X and Y fractions were analyzed. Activity of the enzymes ALP, GGT, CK, LDH and accumulation of lactate in the seminal plasma of ejacul...
Source: Animal Reproduction Science - March 10, 2024 Category: Zoology Authors: Stanimir Yotov Desislava Abadjieva Anatoli Atanasov Boyana Ivanova Paulina Taushanova Ivan Fasulkov Elena Kistanova Source Type: research
In vitro characteristics of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and TLR7/8 ligand R848
This study aimed to evaluate some in vitro characteristics (DNA quantity, kinematic parameters and enzymes activity) of X- and Y-bearing ram spermatozoa sorted by bovine serum albumin (BSA) column and toll-like receptors (TLR)7/8 ligand R848. The ejaculates from six rams were collected by artificial vagina and subjected to a computer-assisted semen analysis (CASA). Total motility and percentage of the sperms with rapid and medium progressivity or non-progressivity in whole ejaculates and in X and Y fractions were analyzed. Activity of the enzymes ALP, GGT, CK, LDH and accumulation of lactate in the seminal plasma of ejacul...
Source: Animal Reproduction Science - March 10, 2024 Category: Zoology Authors: Stanimir Yotov Desislava Abadjieva Anatoli Atanasov Boyana Ivanova Paulina Taushanova Ivan Fasulkov Elena Kistanova Source Type: research
Split weaning improves pregnancy rate and embryo survival in sows mated in lactation
Anim Reprod Sci. 2024 Feb 21;263:107440. doi: 10.1016/j.anireprosci.2024.107440. Online ahead of print.ABSTRACTIncreasing piglet weaning age while maintaining the reproductive efficiency of the breeding herd depends on the ability to stimulate sows to ovulate during lactation without reducing subsequent pregnancy rates and litter sizes. The aim of this study was to determine if a reduction in piglet suckling load, either prior to or immediately after mating in lactation, altered ovarian follicle development and increased embryo survival to day 30 of gestation. Fifty-nine multiparous Large White x Landrace sows were allocat...
Source: Animal Reproduction Science - March 7, 2024 Category: Zoology Authors: Alice C Weaver Karen L Kind Paul J Herde William H E J van Wettere Source Type: research
Split weaning improves pregnancy rate and embryo survival in sows mated in lactation
Anim Reprod Sci. 2024 Feb 21;263:107440. doi: 10.1016/j.anireprosci.2024.107440. Online ahead of print.ABSTRACTIncreasing piglet weaning age while maintaining the reproductive efficiency of the breeding herd depends on the ability to stimulate sows to ovulate during lactation without reducing subsequent pregnancy rates and litter sizes. The aim of this study was to determine if a reduction in piglet suckling load, either prior to or immediately after mating in lactation, altered ovarian follicle development and increased embryo survival to day 30 of gestation. Fifty-nine multiparous Large White x Landrace sows were allocat...
Source: Animal Reproduction Science - March 7, 2024 Category: Zoology Authors: Alice C Weaver Karen L Kind Paul J Herde William H E J van Wettere Source Type: research
Split weaning improves pregnancy rate and embryo survival in sows mated in lactation
Anim Reprod Sci. 2024 Feb 21;263:107440. doi: 10.1016/j.anireprosci.2024.107440. Online ahead of print.ABSTRACTIncreasing piglet weaning age while maintaining the reproductive efficiency of the breeding herd depends on the ability to stimulate sows to ovulate during lactation without reducing subsequent pregnancy rates and litter sizes. The aim of this study was to determine if a reduction in piglet suckling load, either prior to or immediately after mating in lactation, altered ovarian follicle development and increased embryo survival to day 30 of gestation. Fifty-nine multiparous Large White x Landrace sows were allocat...
Source: Animal Reproduction Science - March 7, 2024 Category: Zoology Authors: Alice C Weaver Karen L Kind Paul J Herde William H E J van Wettere Source Type: research
Sperm traits and seminal plasma proteome of locally adapted hairy rams subjected to intermittent scrotal insulation
Anim Reprod Sci. 2024 Feb 24;263:107439. doi: 10.1016/j.anireprosci.2024.107439. Online ahead of print.ABSTRACTThe present study evaluated the effects of heat stress on reproductive parameters of hairy rams. Six animals were subjected to scrotal insulation during four consecutive nights (6 PM - 6 AM). Day (D) 0 was the first day of insulation. Scrotal circumference increased from 30.5 ± 0.3 cm (at pre-insulation) to 31.8 ± 0.4 cm on D4, decreased 3.9 cm on D28, returning to 30.6 ± 0.6 cm on D57. Sperm concentration decreased from 3.7 ± 0.12 ×109 sperm/mL before insulation to 2.6 ± 0.1 ×109 on D23, returning to norma...
Source: Animal Reproduction Science - March 6, 2024 Category: Zoology Authors: Aderson M Viana Neto Denise D Guerreiro Jorge A M Martins F Ábio R Vasconcelos R Évila B F Melo Ana Luiza M C S Velho Marta Neila-Montero Rafael Montes-Garrido Celso S Nagano Airton A Ara újo Arlindo A Moura Source Type: research
Sperm traits and seminal plasma proteome of locally adapted hairy rams subjected to intermittent scrotal insulation
Anim Reprod Sci. 2024 Feb 24;263:107439. doi: 10.1016/j.anireprosci.2024.107439. Online ahead of print.ABSTRACTThe present study evaluated the effects of heat stress on reproductive parameters of hairy rams. Six animals were subjected to scrotal insulation during four consecutive nights (6 PM - 6 AM). Day (D) 0 was the first day of insulation. Scrotal circumference increased from 30.5 ± 0.3 cm (at pre-insulation) to 31.8 ± 0.4 cm on D4, decreased 3.9 cm on D28, returning to 30.6 ± 0.6 cm on D57. Sperm concentration decreased from 3.7 ± 0.12 ×109 sperm/mL before insulation to 2.6 ± 0.1 ×109 on D23, returning to norma...
Source: Animal Reproduction Science - March 6, 2024 Category: Zoology Authors: Aderson M Viana Neto Denise D Guerreiro Jorge A M Martins F Ábio R Vasconcelos R Évila B F Melo Ana Luiza M C S Velho Marta Neila-Montero Rafael Montes-Garrido Celso S Nagano Airton A Ara újo Arlindo A Moura 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
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
