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Liu J, Zhang D, Zhang Z, Chai W, Zhang J, Li M, Wang Y, Zhang S, Zhu M. Comparison of body size and reproductive hormones in high- and low-yielding Wulong geese. Poult Sci 2021; 101:101618. [PMID: 34986450 PMCID: PMC8743208 DOI: 10.1016/j.psj.2021.101618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 10/08/2021] [Accepted: 11/22/2021] [Indexed: 11/26/2022] Open
Abstract
Wulong geese are renowned for their egg-laying and reproductive abilities. This work investigated the potential of using body size traits in the selection and breeding of high-yielding Wulong geese. A total of forty 479day-old female geese (high-yielding geese, n = 20; low-yielding geese, n = 20) were selected to evaluate the relationship between body weight, body size trait indicators, serum reproductive hormones, and biochemical indicators. The results showed that serum estradiol (E2), glucose (GLU), and triglyceride (TG) concentrations, together with pubic spacing and abdominal circumference were significantly higher in high-yielding geese (P < 0.01), whereas the opposite was true for neck circumference, neck length, and tibial circumference. In addition, the serum testosterone (T) concentration and body weight were higher in high-yielding geese (P < 0.05). Neck circumference and neck length were negatively correlated with E2 and TG (P < 0.01); while pubic spacing and abdominal circumference were positively correlated with E2, GLU, and TG (P < 0.01), the highest correlation coefficient was 0.777 between TG and pubic spacing; T was also strongly associated with neck circumference (P < 0.01). In conclusion, high-yielding Wulong geese can be selected through neck circumference, neck length, pubic spacing, and abdominal circumference.
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Affiliation(s)
- Jingjing Liu
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Demin Zhang
- Shandong Animal Husbandry General Station, Jinan 250010, China
| | - Zhenwei Zhang
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Wenqiong Chai
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Jiqing Zhang
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Mengmeng Li
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Yun Wang
- Liaocheng Academy of Agricultural Sciences, Liaocheng 252000, China
| | - Shuer Zhang
- Shandong Animal Husbandry General Station, Jinan 250010, China
| | - Mingxia Zhu
- College of Agronomy of Liaocheng University, Liaocheng 252000, China.
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Dawod A, Osman N, Heikal HS, Ali KA, Kandil OM, Shehata AA, Hafez HM, Mahboub H. Impact of Nano-Bromocriptine on Egg Production Performance and Prolactin Expression in Layers. Animals (Basel) 2021; 11:ani11102842. [PMID: 34679863 PMCID: PMC8532771 DOI: 10.3390/ani11102842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Egg production is one of the most vital axes in the poultry industry. During the late laying period, the egg production continuously decreases, and pauses among the sequence of egg laying increases; however, the feed costs remain constant. Several attempts were carried out to improve the reproductive performance of laying hens by decreasing the prolactin level in the blood; an increase in this hormone initiates the onset of incubation behavior in chickens. In this study, we investigated the potential use of nano-bromocriptine to the improve egg production performance in laying hens. The use of alginate-bromocriptine leads to a significant reduction in the prolactin expression in the pituitary gland, which in turn allows the elongation in sequences and reduction in pauses, as well as the feed per dozen egg in laying hens. Further studies are needed to assess the impacts of nano-bromocriptine on other performance parameters. Thus, the improvement of egg production persistency must also go hand in hand with sustainable egg quality and the maintenance of the birds’ health. Abstract The current study aimed to investigate the potential use of nano-bromocriptine in improving the laying performance of late laying hens by modulating the prolactin gene expression. A total of 150 NOVOgen brown laying hens aged 70 weeks were randomly allocated into three groups of 50 birds each. The first group was kept as a control, while the second and the third groups were treated with bromocriptine and nano-bromocriptine, respectively, at a dose of 100 µg/kg body weight per week. The pause days, egg production, feed per dozen egg, and Haugh unit were determined on a monthly basis. Also, the relative prolactin gene expression in the pituitary gland was quantified using qPCR and the number of the ovarian follicles was determined after slaughtering at the 84th week of age. It was found that nano-bromocriptine and bromocriptine improved egg laying performance with minimal pause days, reduced feed per dozen egg, and depressed the relative prolactin gene expression; however, nano-bromocriptine treatment was significantly effective compared to bromocriptine. In conclusion, nano-bromocriptine might be beneficial for elongating sequences and reducing pauses.
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Affiliation(s)
- Ahmed Dawod
- Department of Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, University of Sadat City, Menofia 32897, Egypt; (A.D.); (N.O.); (H.S.H.); (H.M.)
| | - Noha Osman
- Department of Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, University of Sadat City, Menofia 32897, Egypt; (A.D.); (N.O.); (H.S.H.); (H.M.)
| | - Hanim S. Heikal
- Department of Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, University of Sadat City, Menofia 32897, Egypt; (A.D.); (N.O.); (H.S.H.); (H.M.)
| | - Korany A. Ali
- Center of Excellence for Advanced Science, Advanced Materials and Nanotechnology Group, Applied Organic Chemistry Department, National Research Centre, Dokki, Giza 12622, Egypt;
| | - Omaima M. Kandil
- Center of Excellence for Embryo and Genetic Resources Conservation Bank, Department of Animal Reproduction and Artificial Insemination, Veterinary Research Division, National Research Center, Dokki, Giza 12622, Egypt;
| | - Awad A. Shehata
- Avian and Rabbit Diseases Department, Faculty of Veterinary Medicine, University of Sadat City, Menofia 32897, Egypt;
- Research and Development Section, PerNaturam GmbH, 56290 Gödenroth, Germany
| | - Hafez M. Hafez
- Institute of Poultry Diseases, Free University Berlin, 14195 Berlin, Germany
- Correspondence:
| | - Hamada Mahboub
- Department of Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, University of Sadat City, Menofia 32897, Egypt; (A.D.); (N.O.); (H.S.H.); (H.M.)
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Mapping of Quantitative Trait Loci Controlling Egg-Quality and -Production Traits in Japanese Quail ( Coturnix japonica) Using Restriction-Site Associated DNA Sequencing. Genes (Basel) 2021; 12:genes12050735. [PMID: 34068239 PMCID: PMC8153160 DOI: 10.3390/genes12050735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/07/2021] [Accepted: 05/08/2021] [Indexed: 02/07/2023] Open
Abstract
This research was conducted to identify quantitative trait loci (QTL) associated with egg-related traits by constructing a genetic linkage map based on single nucleotide polymorphism (SNP) markers using restriction-site associated DNA sequencing (RAD-seq) in Japanese quail. A total of 138 F2 females were produced by full-sib mating of F1 birds derived from an intercross between a male of the large-sized strain with three females of the normal-sized strain. Eggs were investigated at two different stages: the beginning stage of egg-laying and at 12 weeks of age (second stage). Five eggs were analyzed for egg weight, lengths of the long and short axes, egg shell strength and weight, yolk weight and diameter, albumen weight, egg equator thickness, and yolk color (L*, a*, and b* values) at each stage. Moreover, the age at first egg, the cumulative number of eggs laid, and egg production rate were recorded. RAD-seq developed 118 SNP markers and mapped them to 13 linkage groups using the Map Manager QTX b20 software. Markers were spanned on 776.1 cM with an average spacing of 7.4 cM. Nine QTL were identified on chromosomes 2, 4, 6, 10, 12, and Z using the simple interval mapping method in the R/qtl package. The QTL detected affected 10 egg traits of egg weight, lengths of the long and short axes of egg, egg shell strength, yolk diameter and weight, albumen weight, and egg shell weight at the beginning stage, yellowness of the yolk color at the second stage, and age at first egg. This is the first report to perform a quail QTL analysis of egg-related traits using RAD-seq. These results highlight the effectiveness of RAD-seq associated with targeted QTL and the application of marker-assisted selection in the poultry industry, particularly in the Japanese quail.
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Vinh NT, Giang NTP, Linh NV, Dang PK, Cahn NX, Giang NTC, Doan BH, Anh NT, Thinh NH. Single Nucleotide Polymorphisms of Candidate Genes Related to Egg Production Traits in Vietnamese Indigenous Chickens. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2021. [DOI: 10.1590/1806-9061-2020-1298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- NT Vinh
- Viet nam National University of Agriculture, Vietnam
| | - NTP Giang
- Viet nam National University of Agriculture, Vietnam
| | - NV Linh
- Vietnam Academy of Science and Technology, Vietnam
| | - PK Dang
- Viet nam National University of Agriculture, Vietnam
| | - NX Cahn
- Viet nam National University of Agriculture, Vietnam
| | - NTC Giang
- Viet nam National University of Agriculture, Vietnam
| | - BH Doan
- Viet nam National University of Agriculture, Vietnam
| | - NT Anh
- Viet nam National University of Agriculture, Vietnam
| | - NH Thinh
- Viet nam National University of Agriculture, Vietnam
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Du Y, Liu L, He Y, Dou T, Jia J, Ge C. Endocrine and genetic factors affecting egg laying performance in chickens: a review. Br Poult Sci 2020; 61:538-549. [PMID: 32306752 DOI: 10.1080/00071668.2020.1758299] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
1. Egg-laying performance reflects the overall reproductive performance of breeding hens. The genetic traits for egg-laying performance have low or medium heritability, and, depending on the period involved, usually ranges from 0.16 to 0.64. Egg-laying in chickens is regulated by a combination of environmental, endocrine and genetic factors. 2. The main endocrine factors that regulate egg-laying are gonadotropin-releasing hormone (GnRH), prolactin (PRL), follicle-stimulating hormone (FSH) and luteinising hormone (LH). 3. In the last three decades, many studies have explored this aspect at a molecular genetic level. Recent studies identified 31 reproductive hormone-based candidate genes that were significantly associated with egg-laying performance. With the development of genome-sequencing technology, 64 new candidate genes and 108 single nucleotide polymorphisms (SNPs) related to egg-laying performance have been found using genome-wide association studies (GWAS), providing novel insights into the molecular genetic mechanisms governing egg production. At the same time, microRNAs that regulate genes responsible for egg-laying in chickens were reviewed. 4. Research on endocrinological and genetic factors affecting egg-laying performance will greatly improve the reproductive performance of chickens and promote the protection, development, and utilisation of poultry. This review summarises studies on the endocrine and genetic factors of egg-laying performance in chickens from 1972 to 2019.
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Affiliation(s)
- Y Du
- College of Animal Science and Technology, Yunnan Agricultural University , Kunming, Yunnan, The People's Republic of China
| | - L Liu
- School of Forensic Medicine, Kunming Medical University , Kunming, Yunnan, The People's Republic of China
| | - Y He
- College of Animal Science and Technology, Yunnan Agricultural University , Kunming, Yunnan, The People's Republic of China
| | - T Dou
- College of Animal Science and Technology, Yunnan Agricultural University , Kunming, Yunnan, The People's Republic of China
| | - J Jia
- College of Animal Science and Technology, Yunnan Agricultural University , Kunming, Yunnan, The People's Republic of China
| | - C Ge
- College of Animal Science and Technology, Yunnan Agricultural University , Kunming, Yunnan, The People's Republic of China
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Functional genomics in chicken (Gallus gallus) - status and implications in poultry. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s004393391400004x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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SINGH UMESH, RAJA TV, ALYETHODI RR, MURTHY KS. Genetic evaluation of Gir bulls under associated herd progeny testing programme. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i5.90029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A study was conducted to predict the expected breeding values of 6 Gir bulls inducted under the All India Coordinated Research Project on Cattle. A total of 222 first lactation 305 days records of Gir daughters born between 2013 and 2017 were analyzed by Best Linear Unbiased Prediction (BLUP) method using Model VIII of LSMLMW software. The BLUP model included the herd-year-season effect as fixed factor and sires as random factor. The overall average expected breeding value (EBV) was 2563.79 kg. The breeding values of Gir sires ranged between –71.13 to +150.71 kg. The results of the study revealed that the BLUP method discriminated the sires for their breeding values to a larger extent so that the genetically superior bulls can be discriminated from the poor bulls. Based on the results, use of frozen semen doses of two Gir bulls, viz. Pankaj and Bhavik is recommended to breed the Gir cows for increasing the milk production in subsequent generations.
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FAN JING, JIANG LINLIN, LIU XIAOHUI, ZHANG WEIFENG, WANG BIN, SHI YUXIANG, MA TENGHE. Prolaction gene association with chicken egg production traits. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i2.87345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In this study, using the direct sequencing technology, 6 SNPs were identified in PRL gene, among which, 3 SNPs were present in coding region and 3 in 3’UTR. Mutations in coding region did not change the protein sequences. SNPs g.4603, g.8823 and g.8885 were utilized for association test with AFE, EN 300 and EN 500. SNP g.4603 was associated with EN 300, whereas the SNP g.8823 was significantly associated with EN 300. These two SNPs in PRL gene could be used as the potential molecular markers for egg production traits selection in Taihang chicken.
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Jing Y, Shan X, Mu F, Qin N, Zhu H, Liu D, Yuan S, Xu R. Associations of the Novel Polymorphisms of Periostin and Platelet-Derived Growth Factor Receptor-Like Genes with Egg Production Traits in Local Chinese Dagu Hens. Anim Biotechnol 2016; 27:208-16. [DOI: 10.1080/10495398.2016.1169191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yang Jing
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Xuesong Shan
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Fang Mu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Ning Qin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - HongYan Zhu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Dehui Liu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Shuguo Yuan
- Jilin Grain Group Agriculture and Livestock Co., Ltd., Changchun, Jilin, China
| | - Rifu Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
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Abstract
Chicken prolactin (PRL) is a physiological candidate gene for egg production. Variations of T8052C and G8113C in exon 5 of PRL gene may associate with chicken egg production. The objective of the study was to investigate the association of these two single nucleotide polymorphisms in PRL gene with egg production of Recessive White chickens and Qingyuan Partridge chickens. Genotyping was performed by polymerase chain reaction-ligase detection reaction (PCR-LDR) method. The T8052C and G8113C of PRL were significantly associated with age at first egg (AFE) and total egg number at 300 days of age (EN 300). A significant association was also found between T8052C-G8113C haplotypes and AFE as well as EN300, the H2H3 was the most advantageous diplotype for egg production. We putatively drew the conclusion that these two SNPs in PRL gene as well as their haplotypes could be used as the potential molecular markers for egg production traits in chicken.
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Chang MT, Cheng YS, Huang MC. Association of prolactin haplotypes with reproductive traits in Tsaiya ducks. Anim Reprod Sci 2012; 135:91-6. [DOI: 10.1016/j.anireprosci.2012.08.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 07/17/2012] [Accepted: 08/18/2012] [Indexed: 11/30/2022]
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Liu W, Li D, Liu J, Chen S, Qu L, Zheng J, Xu G, Yang N. A genome-wide SNP scan reveals novel loci for egg production and quality traits in white leghorn and brown-egg dwarf layers. PLoS One 2011; 6:e28600. [PMID: 22174844 PMCID: PMC3234275 DOI: 10.1371/journal.pone.0028600] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 11/11/2011] [Indexed: 01/05/2023] Open
Abstract
Availability of the complete genome sequence as well as high-density SNP genotyping platforms allows genome-wide association studies (GWAS) in chickens. A high-density SNP array containing 57,636 markers was employed herein to identify associated variants underlying egg production and quality traits within two lines of chickens, i.e., White Leghorn and brown-egg dwarf layers. For each individual, age at first egg (AFE), first egg weight (FEW), and number of eggs (EN) from 21 to 56 weeks of age were recorded, and egg quality traits including egg weight (EW), eggshell weight (ESW), yolk weight (YW), eggshell thickness (EST), eggshell strength (ESS), albumen height(AH) and Haugh unit(HU) were measured at 40 and 60 weeks of age. A total of 385 White Leghorn females and 361 brown-egg dwarf dams were selected to be genotyped. The genome-wide scan revealed 8 SNPs showing genome-wise significant (P<1.51E-06, Bonferroni correction) association with egg production and quality traits under the Fisher's combined probability method. Some significant SNPs are located in known genes including GRB14 and GALNT1 that can impact development and function of ovary, but more are located in genes with unclear functions in layers, and need to be studied further. Many chromosome-wise significant SNPs were also detected in this study and some of them are located in previously reported QTL regions. Most of loci detected in this study are novel and the follow-up replication studies may be needed to further confirm the functional significance for these newly identified SNPs.
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Affiliation(s)
- Wenbo Liu
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Dongfeng Li
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianfeng Liu
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Sirui Chen
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lujiang Qu
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiangxia Zheng
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guiyun Xu
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Ning Yang
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
- * E-mail:
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