Factors affecting the success of laparoscopic artificial insemination in sheep
Anim Reprod Sci. 2024 Mar 14;264:107453. doi: 10.1016/j.anireprosci.2024.107453. Online ahead of print.ABSTRACTSuccessful artificial breeding underpins rapid genetic and production gains in animal agriculture. In sheep, artificial insemination with frozen semen is performed via intrauterine laparoscopy as frozen-thawed spermatozoa do not traverse the cervix in sufficient numbers for high fertility and transcervical insemination is anatomically impossible in most ewes. Historically, laparoscopic artificial insemination has always been considered reasonably successful, but recent anecdotal reports of poor fertility place it ...
Source: Animal Reproduction Science - March 28, 2024 Category: Zoology Authors: E A Spanner S P de Graaf J P Rickard Source Type: research
Development and growth of bovine calves demi-embryos
Anim Reprod Sci. 2023 Dec 21;264:107405. doi: 10.1016/j.anireprosci.2023.107405. Online ahead of print.ABSTRACTThe aim of this study was to investigate the growth and development of animals produced from demi-embryos and compare them with whole embryos from fetus to adult life. To achieve this, calves produced from fresh demi-embryos and whole embryos were individually transferred and monitored from 60 days of pregnancy until slaughter at 550 days. Ultrasound scans were conducted on fetuses at 60 and 90 days to evaluate the biparietal, abdominal, umbilical cord, orbital, and aorta diameters. Subsequently, morphological tra...
Source: Animal Reproduction Science - March 28, 2024 Category: Zoology Authors: Amada E Ynsaurralde-Rivolta Andres Rogberg-Mu ñoz Sebastian Lopez-Valiente Sebastian Maresca Alejandro Rodriguez Carlos Munar Sebastian Munilla-Leguizam ón Franco A Dellavalle Daniel Salamone Source Type: research
Cold-induced damage in boar sperm cooled to 5 °C in Lactose Egg Yolk (LEY) medium with different Glycerol concentrations
Anim Reprod Sci. 2024 Mar 13;264:107455. doi: 10.1016/j.anireprosci.2024.107455. Online ahead of print.ABSTRACTBoar sperm is highly susceptible to cold damage. When temperature drops to 5°C, the plasmatic membrane is destabilized. The freezing process causes a reduction of the fertility window because frozen/thawed boar sperm has less survivability. The aim of this work was to analyze the effect on sperm characteristics and response to capacitation stimuli of cooling to 5°C using a controlled protocol. Also, we evaluated if the addition of Glycerol 2% or 3% at 5°C was able to modify these parameters. For this purpose, w...
Source: Animal Reproduction Science - March 28, 2024 Category: Zoology Authors: Pablo Torres Daniela Marina Malcervelli Jonathan Hern án Cartelle Mar ía Laura Fischman Humberto Osvaldo Cisale Source Type: research
Developmental programming of the ovarian reserve in livestock
Anim Reprod Sci. 2024 Mar 19;264:107458. doi: 10.1016/j.anireprosci.2024.107458. Online ahead of print.ABSTRACTMammalian females are born with a finite number of follicles in their ovaries that is referred to as the ovarian reserve. There is a large amount of variation between females in the number of antral follicles that they are born with, but this number is positively correlated to size of the ovarian reserve, has a strong repeatability within a female, and a moderate heritability. Although the heritability is moderate, numerous external factors including health, nutrition, ambient temperature, and litter size influenc...
Source: Animal Reproduction Science - March 26, 2024 Category: Zoology Authors: Robert A Cushman Vahid Akbarinejad George A Perry Clay A Lents Source Type: research
Developmental programming of the ovarian reserve in livestock
Anim Reprod Sci. 2024 Mar 19;264:107458. doi: 10.1016/j.anireprosci.2024.107458. Online ahead of print.ABSTRACTMammalian females are born with a finite number of follicles in their ovaries that is referred to as the ovarian reserve. There is a large amount of variation between females in the number of antral follicles that they are born with, but this number is positively correlated to size of the ovarian reserve, has a strong repeatability within a female, and a moderate heritability. Although the heritability is moderate, numerous external factors including health, nutrition, ambient temperature, and litter size influenc...
Source: Animal Reproduction Science - March 26, 2024 Category: Zoology Authors: Robert A Cushman Vahid Akbarinejad George A Perry Clay A Lents Source Type: research
Developmental programming of the ovarian reserve in livestock
Anim Reprod Sci. 2024 Mar 19;264:107458. doi: 10.1016/j.anireprosci.2024.107458. Online ahead of print.ABSTRACTMammalian females are born with a finite number of follicles in their ovaries that is referred to as the ovarian reserve. There is a large amount of variation between females in the number of antral follicles that they are born with, but this number is positively correlated to size of the ovarian reserve, has a strong repeatability within a female, and a moderate heritability. Although the heritability is moderate, numerous external factors including health, nutrition, ambient temperature, and litter size influenc...
Source: Animal Reproduction Science - March 26, 2024 Category: Zoology Authors: Robert A Cushman Vahid Akbarinejad George A Perry Clay A Lents Source Type: research
Maternal recognition of pregnancy in the pig: A servomechanism involving sex steroids, cytokines and prostaglandins
Anim Reprod Sci. 2024 Mar 12;264:107452. doi: 10.1016/j.anireprosci.2024.107452. Online ahead of print.ABSTRACTMaternal recognition of pregnancy (MRP) is a term utilized in mammals to describe pathways in which the conceptus alters the endometrial environment to prevent regression of corpora lutea to ensure continued production of progesterone (P4) required for establishment and maintenance of pregnancy. For nearly 40 years after publication of the endocrine/exocrine theory, conceptus estrogen (E2) was considered the primary maternal recognition signal in the pig. Conceptus production of prostaglandin E2 (PGE2) was also co...
Source: Animal Reproduction Science - March 24, 2024 Category: Zoology Authors: Rodney D Geisert Fuller W Bazer Caroline G Lucas Caroline A Pfeiffer Ashley E Meyer Riley Sullivan Destiny N Johns Mariana Sponchiado Randall S Prather Source Type: research
Maternal recognition of pregnancy in the pig: A servomechanism involving sex steroids, cytokines and prostaglandins
Anim Reprod Sci. 2024 Mar 12;264:107452. doi: 10.1016/j.anireprosci.2024.107452. Online ahead of print.ABSTRACTMaternal recognition of pregnancy (MRP) is a term utilized in mammals to describe pathways in which the conceptus alters the endometrial environment to prevent regression of corpora lutea to ensure continued production of progesterone (P4) required for establishment and maintenance of pregnancy. For nearly 40 years after publication of the endocrine/exocrine theory, conceptus estrogen (E2) was considered the primary maternal recognition signal in the pig. Conceptus production of prostaglandin E2 (PGE2) was also co...
Source: Animal Reproduction Science - March 24, 2024 Category: Zoology Authors: Rodney D Geisert Fuller W Bazer Caroline G Lucas Caroline A Pfeiffer Ashley E Meyer Riley Sullivan Destiny N Johns Mariana Sponchiado Randall S Prather Source Type: research
Ovarian lavage / artificial insemination method as an alternative approach for controlled reproduction of the northern pike (Esox lucius)
This study aimed to compare the effectiveness of the ovarian lavage / artificial insemination method with the traditional hormonal administration and fertilization methods over the artificial reproduction of the northern pike (Esox lucius). For this purpose, groups of five females were treated as follows: intraperitoneal injection of saline (C1); ovarian lavage with saline (C2); intraperitoneal injection of carp pituitary extract (CPE, T1); ovarian lavage with CPE (T2); intraperitoneal injection of CPE and ovarian lavage with semen after 72 h (T3); ovarian lavage with CPE and ovarian lavage with semen after 72 h (T4). Acco...
Source: Animal Reproduction Science - March 22, 2024 Category: Zoology Authors: Erfan Akbari Nargesi Danial Gorouhi Source Type: research
Ovarian lavage / artificial insemination method as an alternative approach for controlled reproduction of the northern pike (Esox lucius)
This study aimed to compare the effectiveness of the ovarian lavage / artificial insemination method with the traditional hormonal administration and fertilization methods over the artificial reproduction of the northern pike (Esox lucius). For this purpose, groups of five females were treated as follows: intraperitoneal injection of saline (C1); ovarian lavage with saline (C2); intraperitoneal injection of carp pituitary extract (CPE, T1); ovarian lavage with CPE (T2); intraperitoneal injection of CPE and ovarian lavage with semen after 72 h (T3); ovarian lavage with CPE and ovarian lavage with semen after 72 h (T4). Acco...
Source: Animal Reproduction Science - March 22, 2024 Category: Zoology Authors: Erfan Akbari Nargesi Danial Gorouhi Source Type: research
Developmental programming of reproduction in the female animal
Anim Reprod Sci. 2024 Mar 16;263:107456. doi: 10.1016/j.anireprosci.2024.107456. Online ahead of print.ABSTRACTSuccessful reproduction is a cornerstone in food animal industry in order to sustain food production for human. Therefore, various methods focusing on genetics and postnatal environment have been identified and applied to improve fertility in livestock. Yet there is evidence indicating that environmental factors during prenatal and/or neonatal life can also impact the function of reproductive system and fertility in the animals during adulthood, which is called the developmental programming of reproduction. The cu...
Source: Animal Reproduction Science - March 19, 2024 Category: Zoology Authors: Vahid Akbarinejad Robert A Cushman Source Type: research
Developmental programming of reproduction in the female animal
Anim Reprod Sci. 2024 Mar 16;263:107456. doi: 10.1016/j.anireprosci.2024.107456. Online ahead of print.ABSTRACTSuccessful reproduction is a cornerstone in food animal industry in order to sustain food production for human. Therefore, various methods focusing on genetics and postnatal environment have been identified and applied to improve fertility in livestock. Yet there is evidence indicating that environmental factors during prenatal and/or neonatal life can also impact the function of reproductive system and fertility in the animals during adulthood, which is called the developmental programming of reproduction. The cu...
Source: Animal Reproduction Science - March 19, 2024 Category: Zoology Authors: Vahid Akbarinejad Robert A Cushman Source Type: research
Developmental programming of reproduction in the female animal
Anim Reprod Sci. 2024 Mar 16;263:107456. doi: 10.1016/j.anireprosci.2024.107456. Online ahead of print.ABSTRACTSuccessful reproduction is a cornerstone in food animal industry in order to sustain food production for human. Therefore, various methods focusing on genetics and postnatal environment have been identified and applied to improve fertility in livestock. Yet there is evidence indicating that environmental factors during prenatal and/or neonatal life can also impact the function of reproductive system and fertility in the animals during adulthood, which is called the developmental programming of reproduction. The cu...
Source: Animal Reproduction Science - March 19, 2024 Category: Zoology Authors: Vahid Akbarinejad Robert A Cushman Source Type: research
Developmental programming of reproduction in the female animal
Anim Reprod Sci. 2024 Mar 16;263:107456. doi: 10.1016/j.anireprosci.2024.107456. Online ahead of print.ABSTRACTSuccessful reproduction is a cornerstone in food animal industry in order to sustain food production for human. Therefore, various methods focusing on genetics and postnatal environment have been identified and applied to improve fertility in livestock. Yet there is evidence indicating that environmental factors during prenatal and/or neonatal life can also impact the function of reproductive system and fertility in the animals during adulthood, which is called the developmental programming of reproduction. The cu...
Source: Animal Reproduction Science - March 19, 2024 Category: Zoology Authors: Vahid Akbarinejad Robert A Cushman Source Type: research
Simple method for isolation and culture of primary buffalo (Bubalus bubalis) endometrial epithelial cells (pBuEECs) and its characterization using high throughput proteomics approach
In conclusion, these well characterized cells offer valuable in-vitro model to enhance the understanding of implantation and uterine pathophysiology in livestock animals, particularly buffaloes.PMID:38490065 | DOI:10.1016/j.anireprosci.2024.107449 (Source: Animal Reproduction Science)
Source: Animal Reproduction Science - March 15, 2024 Category: Zoology Authors: Shradha Jamwal Nikunj Tyagi Jaideep Kumar Jai Kumar Kaushik Sudarshan Kumar Ashok Kumar Mohanty Source Type: research
