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Journal of Animal Reproduction and Biotechnology
ISSN 2671-4639 · The Korean Society of Animal Reproduction and Biotechnology · 523 artikel di indeks
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Artikel Jurnal
Brachyspina syndrome a cause of dystocia in a Beetal goat: a case report from Pakistan
Pakistan has the third-largest goat population with approximately 84.7 million. To ensure profitable production, it is crucial to prioritize the soundness of the reproductive system. Dystocia can affect the reproductive health status which leads to compromised future fertility of goats. Dystocia…
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Artikel Jurnal
Cytochalasin B duration alters cytoplasmic streaming and mitochondrial redistribution in porcine parthenotes
Background: In parthenogenetic embryos, cytochalasin B (CB) is applied after activation to suppress pseudo-second polar body extrusion and maintain a diploid complement. Because CB inhibits actin polymerization, it is expected to affect actin-dependent cytoplasmic streaming and mitochondrial…
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Artikel Jurnal
CATSPER1 N-terminus is marginally associated with two MAPK signaling molecules, MAPK1 and YWHAE, in heterologous system
Background: CatSper channel is the major channel to introduce extracellular Ca2+ into sperm during capacitation to initiate hyperactivation in the female reproductive tract. CATSPER1 is a pore-subunit of the channel of which truncation of N-terminal intracellular domain is highly correlated with…
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Artikel Jurnal
The prospect of artificial insemination for scientific breeding of Tanzania goats: a case study of Malya blended and Pare White goats
Background: The application of artificial insemination (AI) in goat farming is considered a sustainable strategy for improving fertility and genetics particularly when implemented within the framework of community-based breeding programs (CBBPs) and complemented using basic management practices…
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Artikel Jurnal
Repeated pluripotent stem cell administration delays age-associated decline in mice
Background: Yamanaka-factor-mediated partial reprogramming can reverse selected age-associated changes without complete loss of cellular identity. We asked whether repeated systemic administration of intact human pluripotent stem cells, which maintain pluripotency-associated networks, might…
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Artikel Jurnal
Associations of plasma free amino acids and related metabolites with pregnancy outcomes following artificial insemination in Hanwoo cows: a preliminary study
Background: Reproductive efficiency is an important determinant of productivity in Hanwoo cow–calf production. Blood biochemical parameters and plasma metabolites may provide useful information on pregnancy outcomes because nutritional and metabolic status can influence fertilization and early…
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Artikel Jurnal
Improving the efficiency of Hanwoo breeding through genetic evaluation of major primal cuts
Background: Genetic improvement studies on Hanwoo cattle have primarily focused on four major carcass traits (carcass weight, eye muscle area, back fat thickness, and marbling score). However, research on diverse traits, such as primal cuts, meat quality, and retail cuts, remains limited…
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Artikel Jurnal
Heat stress impairs meiotic maturation and mitochondrial function and is associated with altered ATF5/HSPA9-related LONP1 signaling in bovine oocytes
Background: Environmental heat stress (HS) compromises livestock fertility by adversely affecting oocyte maturation and cellular homeostasis. This study investigated HS-associated changes in bovine ovarian tissues and the effects of HS during bovine oocyte in vitro maturation (IVM). Methods: In…
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Artikel Jurnal
Effects of inbreeding coefficients on the development of in vitro produced embryos in Hanwoo cattle
Background: Although the high inbreeding coefficient (F) can induce inbreeding depression in livestock, its stage-specific effects on in vitro fertilization (IVF) embryo development remain poorly characterized. Methods: This study investigated the effects of embryo inbreeding levels on the primary…
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Artikel Jurnal
Sperm concentration influences pregnancy rate but approaches functional fertilization saturation in beef cattle
Background: Sperm concentration per insemination dose is a determinant of fertilization success in bovine artificial insemination (AI). Although insufficient sperm numbers impair fertility, increasing sperm concentration beyond a threshold may provide limited additional benefit. Under commercial…
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Artikel Jurnal
Anticancer effects of luteolin in canine mammary tumor cells via ER stress and ROS-induced cell cycle arrest and apoptosis
Background: Luteolin has been reported to exert anticancer effects in several cancer types; however, its therapeutic potential in canine mammary tumor has not been fully elucidated. This study aimed to investigate the effects of luteolin on cell proliferation, apoptosis, migration, cell cycle…
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Artikel Jurnal
Analysis of catheter characteristics and reproductive efficiency in canine artificial insemination
This study investigated the structural characteristics of intravaginal insemination (IVI) and intrauterine insemination (IUI) catheters commonly used in canine artificial insemination (AI), and comparatively analyzed reproductive efficiency according to catheter type and insemination method. Based…
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Mesothelioma in the tunica vaginalis testes of a bull: clinic report
In this case report we describe the clinical condition of a 5-year-old Nelore bull with marked enlargement of the right side of the scrotum. After ultrasound evaluation, a hydrocele involving the right testicle was observed. The right testis and epididymis were surgically removed along with the…
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Artikel Jurnal
Heat stress induces mitochondrial dysfunction and ATF5-mediated UPRmt activation via GRP75-dependent ER-mitochondria coupling in bovine embryos
Background: Heat stress (HS), driven by global climate change, adversely affects reproductive performance in livestock and mammals by impairing gamete development and reducing fertility. Exposure of oocytes to elevated temperatures during in vitro maturation (IVM) can induce persistent cellular…
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Artikel Jurnal
Physiological hematologic and biochemical characteristics of Jeju miniature pigs according to age and sex
Background: Miniature pigs are widely used as biomedical models because of their anatomical and physiological similarities to humans; however, hematologic and serum biochemical data for newly developed or regionally derived populations remain limited. The Jeju miniature pig, derived from Korean…
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Artikel Jurnal
A pilot study on automated multi-task deep learning framework for pregnancy diagnostic and gestational age estimation in goats based on ultrasonography
Background: This pilot study aims to develop an automated, multi-task deep learning system as a proof of concept for both the classification of pregnancy status and gestational day prediction in Korean crossbred goats. Methods: Two 1-year-old goats were followed longitudinally until mid to late…
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Artikel Jurnal
Influences of cooling rate and interval agitation during cooling for cryopreservation in goat sperm
Background: Sperm cooling is a critical step in cryopreservation, as exposure to temperatures below 15℃ can induce cold shock-associated damage, including phospholipid scrambling and lipid peroxidation. Goat sperm are particularly vulnerable to cooling-induced injury because of their membrane…
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Artikel Jurnal
Anticancer effect of chrysin on canine mammary gland tumor cells via cell cycle arrest and apoptosis
Background: Canine mammary tumors are one of the most common tumors in female dogs, and the development of effective therapeutic agents is a critical clinical challenge. Chrysin, a natural flavonoid compound, has been reported to exhibit anticancer activity in various human cancers through the…
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Artikel Jurnal
Effects of bull parameters, testicular echogenicity, and scrotal circumference on semen traits
Abstract Background: Africa is the fastest-growing continent, with more than half of the global population growth expected to occur in the region by 2050. The increasing population and lifestyle changes translate to high demand for food. However, Africa does not produce enough food to cater to its…