Article
Agriculture, Dairy & Animal Science
Ahmed Abdel-Kareem Abuoghaba, Fatma Ali, Dina Abdel-Fattah Selim, Amira Ahmed Mohamed Abdelwahab, Mostafa Galal Abdelfattah
Summary: This study evaluated the impact of male-female cohabitation period on fertility, hatchability, injuries response, and hormonal estimates in Japanese quails. The results showed that reducing the cohabitation period improved fertility, hatchability, and some hormonal estimates. It also decreased feed consumption and injuries response.
Article
Agriculture, Dairy & Animal Science
C. Andrieux, S. Biasutti, J. Barrieu, P. Morganx, M. Morisson, V Coustham, S. Panserat, M. Houssier
Summary: This study investigated the impact of different incubation conditions on the zootechnical performance of mule ducks. The results showed that increasing incubation temperature had a negative effect on duck embryonic mortality, but when applied in later developmental windows, hatchability remained unaffected.
Article
Agriculture, Dairy & Animal Science
Karrar I. A. Al-Shammari, Justyna Batkowska, Magdalena Gryzinska, Lukasz Wlazlo, Mateusz Ossowski, Bozena Nowakowicz-Debek
Summary: The aim of this study was to evaluate the effects of disinfection with aqueous solutions of ginger, garlic, oregano, and cinnamon extracts on microbial traits, hatchability, and chick quality. The results showed that these plant extracts had good antimicrobial properties and did not affect hatchability and chick growth.
Article
Endocrinology & Metabolism
Shi-Ming Xie, Jia-Xuan Lai, Chu-Qiao Liu, Xi-Xing Zhang, Yong-Miao Lin, Qi-Wen Lan, De-Yao Hong, Xiao-Chuan Chen, Jing-Da Qiao, Yu-Ling Mao
Summary: It has been found that UBR4 gene plays an important role in reproductive system of fruit flies. Deficiency of UBR4 can lead to male infertility and affect egg hatchability. Bioinformatics analysis verified the low expression of UBR4 in the testis, further supporting the importance of UBR4 in male fertility.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Veterinary Sciences
H. B. Ciftci, A. Aygun
Summary: This study aimed to measure the effect of chicken Gonadotropin Releasing Hormone-I (cGnRH-I) on male fertility potential. Injection of cGnRH-I did not increase pituitary gonadotropin secretion (LH or FSH) but significantly reduced serum testosterone concentration, leading to improved fertility and hatchability. However, further studies with older males are needed to confirm these findings.
JOURNAL OF THE HELLENIC VETERINARY MEDICAL SOCIETY
(2021)
Review
Agriculture, Dairy & Animal Science
S. Sabah, B. Yilmaz Dikmen
Summary: According to current reports, broiler breeder eggs have a high fertility rate at the beginning of production, but a quick decline occurs in fertility after 40 to 45 weeks. To address this issue, spiking, a method involving the replacement of male breeders, is being used to encourage mating activity in older flocks. This review aims to provide detailed information about spiking and compile relevant research results.
WORLDS POULTRY SCIENCE JOURNAL
(2023)
Article
Cell Biology
Mirae Kim, Joohyeong Lee, Lian Cai, Hyerin Choi, Dongjin Oh, Ali Jawad, Sang-Hwan Hyun
Summary: In this study, we found that neurotrophin-4 (NT-4) enhanced blastocyst quality by interacting with neurotrophin-, Hippo-YAP-, and MAPK/ERK signaling pathway, and regulating the apoptosis- and TE lineage specification-related genes during porcine in vitro embryo development.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2023)
Article
Veterinary Sciences
David De la Torre, Claudete S. Astolfi-Ferreira, Ruy D. Chacon, Antonio J. Piantino Ferreira
Summary: Reports of chicken astrovirus (CAstV) infections have increased in recent years, affecting the poultry industries in Brazil and worldwide. This study characterized the CAstV strains found in breeding and incubation companies and revealed a potential association with white chick syndrome.
Article
Veterinary Sciences
Akshat Goel, Chris Major Ncho, Chae-Mi Jeong, Yang-Ho Choi
Summary: This study investigated the effects of temperature and GABA supplementation on embryonic chickens, and found that both T1 and N1 groups improved the body weight of newly hatched chicks, with T1 group regulating stress-related gene expression.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Ahmed Abdel-Kareem Abuoghaba, Waheed Ezzat, Ahmed Mohamed Rizk, Ashraf Ahmed Qurtam, Osama Abdullah El-Sayed
Summary: The results of the study showed that under high ambient temperatures, Silver Montazah and Inshas chicken strains had significantly higher egg production and hatchability compared to Matrouh and Mandarah strains, while Mandarah chickens had the highest antibody titres.
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
(2021)
Article
Reproductive Biology
Yupei Yao, Yujie Tang, Haoqiang Qin, Ru Meng, Chengtu Zhang, Yingbing Zhang, Ying Yang, Peipei Qiao, Jun Liu, Jianmin Su
Summary: Zinc plays a crucial role in the growth and reproductive functions of animals. This study investigated the effect of zinc on the in vitro maturation of sheep oocytes and subsequent embryonic development. The results showed that zinc addition improved the maturation of sheep oocytes and subsequent blastocyst formation. Additionally, it enhanced glutathione levels, mitochondrial activity, and reduced reactive oxygen species, indicating a positive effect on the quality of oocytes and embryos.
Article
Genetics & Heredity
Bayode O. O. Makanjuola, Emhimad A. A. Abdalla, Benjamin J. J. Wood, Christine F. F. Baes
Summary: This study compared the applicability of a random regression model and a cumulative model using both pedigree and genomic information for genetic evaluation, and estimated and compared their predictability. The results showed that the random regression model using pedigree and genomic relationships simultaneously achieved higher predictability than the traditional cumulative model.
FRONTIERS IN GENETICS
(2022)
Article
Biochemistry & Molecular Biology
Cecilia Valencia, Felipe Perez-Garcia, Luis Aguila, Ricardo Felmer, Maria Elena Arias
Summary: This study evaluated the effects of dual inhibition of protein synthesis and phosphorylation on the activation of bovine oocytes. The results showed that this combination of inhibitors did not affect early developmental competence, but positively impacted the expression of transcripts associated with embryonic quality.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Dairy & Animal Science
S. Ozlu, A. Ucar, T. Erkus, S. Yasun, A. D. Nicholson, O. Elibol
Summary: The study found that embryonic development was more advanced in eggs from 40-week-old breeder flock exposed to SPIDES and warmer storage temperature. Additionally, albumen pH was positively correlated with storage temperature, and hatchability was higher in the prime flock.
BRITISH POULTRY SCIENCE
(2021)
Article
Veterinary Sciences
Tessy Augustianath, D. A. Evans, G. S. Anisha
Summary: The study aimed to investigate the effects of RF-EMR on the embryonic development of organisms using chick embryos as a model. Fertilized eggs were incubated and exposed to RF-EMR from 2G and 4G mobile phones. The results showed that RF-EMR caused teratogenic changes in the morphology of chick embryos, including cross beak, non-retracted yolk sac, macrocephaly, malformed legs and toes, disability in standing and balancing, and variations in body weight, body length, and beak length.
RESEARCH IN VETERINARY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Jesper Tessin, Judith Rohde, Arne Jung, Nicole Kemper, Jochen Schulz
Summary: In this study, samples from poultry house environment and culled birds were collected, and E. cecorum was successfully isolated. The principle of isolating the pathogen by streaking on a chromogenic agar may motivate researchers to investigate transmission routes and optimize biosecurity measures.
Article
Agriculture, Dairy & Animal Science
Junqin Zhang, Zimin Xie, Yanlin Pan, Zuoxin Chen, Yunzhen Huang, Linlin Li, Jiawen Dong, Yong Xiang, Qi Zhai, Minhua Sun, Xingying Li, Shujian Huang, Ming Liao
Summary: In recent years, there has been an increase in the occurrence of fowl adenovirus 2 (FAdV-2) in China, posing a significant threat to the poultry industry. This study investigated the epidemiology, phylogenetic relationship, genomic characteristics, and pathogenicity of FAdV-2. The results showed that FAdV-2 was the most commonly detected serotype among various FAdV serotypes. Genetic analysis revealed that these FAdV-2 strains formed a distinct branch within the FAdV-D group and had a high nucleotide similarity with reference strains. Recombination analysis identified recombination events between FAdV-2 and FAdV-11 in some strains. Pathogenicity experiments demonstrated that a recombinant FAdV-2 strain caused a high mortality rate and more severe disease in chickens. These findings contribute to our understanding of FAdV-2 and provide a basis for vaccine development.
Article
Agriculture, Dairy & Animal Science
Ebtsam Iraqi, Ali Abdel Hady, Nadia Elsayed, Hanaa Khalil, Amina El-Saadany, Karim El-Sabrout
Summary: Thermal manipulation during egg incubation, particularly at 12 to 18 days, has positive effects on embryonic development, hatching characteristics, chick quality, as well as posthatch thermotolerance and performance.
Article
Agriculture, Dairy & Animal Science
Yong Liu, Mingxin Song, He Bai, Chunhua Wang, Fei Wang, Qi Yuan
Summary: Dietary curcumin supplementation can significantly improve egg quality of quails in the late laying period, primarily by improving lipid metabolism and selectively regulating the intestinal microbial community.
Article
Agriculture, Dairy & Animal Science
Lei Zhang, Zhixuan Song, Peiyao Li, Xingju Song, Xinming Tang, Dandan Hu
Summary: This study evaluated the vaccine potential of recombinant proteins for avian coccidiosis caused by Eimeria. The results showed that the rEten5-B protein can trigger immune protection against E. tenella and may be a potential and effective subunit vaccine for the control of coccidiosis in poultry.
Article
Agriculture, Dairy & Animal Science
Milan Kumar Sharma, Amit Kumar Singh, Doyun Goo, Venkata Sesha Reddy Choppa, Hanseo Ko, Hanyi Shi, Woo Kyun Kim
Summary: The study investigates the effect of Eimeria infection on gastrointestinal physiology, growth performance, and egg production of Hy-Line W-36 laying hens during peak production. Results show that Eimeria infection negatively affects body weight, feed intake, immune response, and nutrient transporter gene expression. Egg production temporarily ceases in hens infected with high and medium-high dosages of Eimeria.
Article
Agriculture, Dairy & Animal Science
Elwy A. Ashour, Mahmoud Kamal, Hayman A. A. Altaie, Ayman A. Swelum, Gamaleldin M. Suliman, Guillermo Tellez-Isaias, Mohamed E. Abd El-Hack
Summary: This study evaluated the effects of CP and ME on the performance and nutritional value of Japanese quail lay chicken. The results showed that protein and energy levels significantly influenced all productive outcomes except feed conversion ratio. The combination of dietary energy and protein levels had a substantial effect on all egg quality trials evaluated. It is recommended to feed layer Japanese quail between the ages of 8 and 20 weeks during the summer with a dietary energy content of 2,900 kcal ME/kg and 20% CP.
Article
Agriculture, Dairy & Animal Science
J. E. Doornweerd, R. F. Veerkamp, B. de Klerk, M. van der Sluis, A. C. Bouwman, E. D. Ellen, G. Kootstra
Summary: Tracking group-housed individual broilers using video can provide valuable information on their health, welfare, and performance. This study conducted a comprehensive analysis on broiler tracking on video and potential tracking errors, highlighting the potential and challenges of phenotyping broiler locomotion. The results emphasized the importance of addressing tracking errors, potential algorithm improvements, and the need for an external animal identification system for efficient locomotion phenotyping.
Article
Agriculture, Dairy & Animal Science
Jiayu Wu, Yanan Wang, Yu An, Changyu Tian, Lingfeng Wang, Zuhong Liu, Desheng Qi
Summary: This study compared the gene expression differences in liver tissues of laying hens at different ages using RNA sequencing, and found that the transport and metabolism of amino acids changed during the growing period, which influenced the growth and development of the hens.
Article
Agriculture, Dairy & Animal Science
J. Raabe, G. Raveendran, W. Otten, K. Homeyer, T. Bartels
Summary: This study investigated the effects of different flicker frequencies on the behavior, performance, and stress response in male turkeys. The results showed that flicker frequencies of 165 Hz or higher had no detrimental effect on growth performance, injurious pecking, or endocrine stress response in the turkeys.
Article
Agriculture, Dairy & Animal Science
Adamu Mani Isa, Yanyan Sun, Yuanmei Wang, Yunlei Li, Jingwei Yuan, Aixin Ni, Hui Ma, Lei Shi, Hailai Hagos Tesfay, Yunhe Zong, Panlin Wang, Pingzhuang Ge, Jilan Chen
Summary: This study sequenced mRNAs and lncRNAs in the ovary stroma of specific chicken breeds and their reciprocal crossbreds to understand the molecular mechanism of heterosis for egg production. Results showed that genes with nonadditive expression were related to follicle growth and atresia as well as oxidative stress in the crossbred hens.
Article
Agriculture, Dairy & Animal Science
Zhepeng Wang, Qiu Chen, Yiwei Wang, Yulu Wang, Ruifang Liu
Summary: The study investigates the functional variants associated with chicken eggshell color in the SLCO1B3 gene by measuring the eggshell color of Lueyang black-boned chickens and analyzing the genetic data. It identifies 15 variants in SLCO1B3 that are significantly associated with eggshell color. However, the functional analysis shows that one specific variant, 1B3_SNP108, does not have a significant effect on promoter activity. This study highlights the importance of SLCO1B3 and its variants in breeding eggshell color.
Article
Agriculture, Dairy & Animal Science
P. Yin, Q. Tong, B. M. Li, W. C. Zheng, Y. Wang, H. Q. Peng, X. L. Xue, S. Q. Wei
Summary: This study investigated the welfare and health of laying hens in a multitier system. The results showed that the spatial distribution of hens changed with increasing age, and lower-ranking hens preferred to stay in lower tiers to avoid competition but still had access to resources. This improved the welfare and health of the hens near the end of the laying cycle.
Article
Agriculture, Dairy & Animal Science
Wenwen Liang, Siqiong Jie, Yiqin Wang, Xiaowei Wen, Yanling Xiong, Xiaoxi Lin, Zhengrong Lv
Summary: This study examined the effect of risk perceptions on preventive behavior among vendors in the live poultry wholesale market and the live poultry retail market in Guangdong Province using the health belief model and structural equation modeling. The results showed that perceived severity and perceived benefits positively influenced vendors' self-efficacy in the wholesale market, while perceived barriers negatively affected self-efficacy in both the wholesale and retail markets. Moreover, cues to action mediated the relationship between perceived severity, perceived benefits, and self-efficacy, and also mediated the effect of perceived susceptibility among wholesale market vendors.
Article
Agriculture, Dairy & Animal Science
Shreeya Sharma, Raveendra R. Kulkarni, Shayan Sharif, Hosni Hassan, Mohammadali Alizadeh, Scott Pratt, Khaled Abdelaziz
Summary: The study investigates the impact of exposing chick embryos to antigens via in ovo delivery of poultry-specific lactobacilli on the expression of genes associated with early bursal development and maturation. Results indicate that the supplementation of poultry-specific lactobacilli to chick embryos can accelerate the development and immunological maturation of the bursa of Fabricius.