Anatomia Histologia Embryologia最新文献

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Comprehensive Postnatal Anatomical, Histological and Geometric Morphometric Analysis of Thymus Development in Dromedary Camels (Camelus dromedarius) 单峰驼胸腺发育的产后解剖学、组织学和几何形态计量学综合分析
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-09-25 DOI: 10.1111/ahe.13109
Fares Mohamed Amine, Khenenou Tarek, Rahmoun Djallal Eddine
{"title":"Comprehensive Postnatal Anatomical, Histological and Geometric Morphometric Analysis of Thymus Development in Dromedary Camels (Camelus dromedarius)","authors":"Fares Mohamed Amine,&nbsp;Khenenou Tarek,&nbsp;Rahmoun Djallal Eddine","doi":"10.1111/ahe.13109","DOIUrl":"https://doi.org/10.1111/ahe.13109","url":null,"abstract":"<div>\u0000 \u0000 <p>The thymus, a primary lymphoid organ, plays a critical role in T lymphocyte development and adaptive immunity. This study focuses on the anatomical, histological and geometric morphometric characteristics of the thymus in dromedary camels (<i>Camelus dromedarius</i>) during postnatal development. Thymus samples were collected from camels aged approximately 4, 8, 12 and 16 months. Using photogrammetry and 3D modelling, the samples were analysed to generate landmarks and conduct geometric morphometry with the 3D Slicer and ALPACA algorithm. Principal component analysis (PCA) was then performed to evaluate shape variations. Histologically, the samples underwent Haematoxylin and Eosin and Masson's trichrome staining. Image analysis using QuPath software quantified trabeculae, adipose tissue and Hassall's corpuscles. The results revealed significant anatomical and histological changes in the thymus across the different age groups. Notable variations in tissue composition and structural integrity were observed, with the PCA highlighting distinct morphometric patterns associated with age-related development. These findings provide a deeper understanding of thymus maturation in dromedaries and offer valuable data for comparative anatomy and veterinary medicine. This comprehensive analysis enhances our knowledge of species-specific immune development, with important implications for the health and resilience of these animals in arid environments.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 6","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of Glandula Uropygialis in Different Avian Species Using Morphometric and Histological Methods 用形态计量学和组织学方法研究不同禽类的泌尿生殖腺
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-09-16 DOI: 10.1111/ahe.13107
Funda Aksunger Karaavci, Muhammet Bahaeddin Dortbudak, Muhammed Demircioglu, Ali Kocyigit
{"title":"Investigation of Glandula Uropygialis in Different Avian Species Using Morphometric and Histological Methods","authors":"Funda Aksunger Karaavci,&nbsp;Muhammet Bahaeddin Dortbudak,&nbsp;Muhammed Demircioglu,&nbsp;Ali Kocyigit","doi":"10.1111/ahe.13107","DOIUrl":"https://doi.org/10.1111/ahe.13107","url":null,"abstract":"<div>\u0000 \u0000 <p>The aim of this study was to identify the glandula uropygialis's macroanatomical and histological structure in male and female birds (stork, goose, eagle, pigeon, crow and sparrowhawk) that belong to different populations. A total of 58 specimens were used in the study. The study materials were delivered to our laboratory by nature conservation and national parks, and no animals were euthanised for this study. The longitudinal and transversal lengths, dorsoventral heights and feather length of the glandula uropygialis and papilla uropygialis were measured with a digital calliper. Haematoxylin–eosin and Masson trichrome staining were performed for histological examinations. The shape of the glandula uropygialis was found to be pear-shaped in pigeons and sparrowhawks, heart-shaped in geese, kidney-shaped in eagles and oval-fascule-shaped in storks. In the crow, the shape of the glandula uropygialis was different from the other species in that it was located dorso-caudally. Histomorphological examination of the glands of these species revealed that the gland generally consisted of two lobes, right and left, surrounded by connective tissue from the outside. The parenchyma of these lobes consisted of tubulo-alveolar secretory glands with a radial arrangement from the periphery to the centre. The glands within the lobes differed from the periphery to the centre and although the general histomorphological appearance was similar between bird species, some differences were observed between species. Similar stromal structure was observed in all bird species evaluated in the study. However, the reticular connective tissue forming the roof of the gland was found to be more developed in pigeons, especially in Masson's trichroma staining. The degenerative layer in the glands was more prominent in the eagle, followed by the goose and crow. Although a common general histological structure was observed among bird species, simple histomorphological differences were found between these formations, but no differences were found between the sexes. The results obtained will be compared with the findings of the aves class and will provide a data source for this special gland specific to birds. It is thought that the results obtained may help to determine the functional properties of the gland and contribute to the science of ornithology.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Embryonic Thyroid Hormone Insufficiency Causes Structural Anomalies in the Embryo of Domestic Chick, Gallus domesticus 胚胎甲状腺激素不足导致家鸡胚胎结构异常
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-09-16 DOI: 10.1111/ahe.13106
Juhi Vaishnav, Shashikant Sharma, Suresh Balakrishnan
{"title":"Embryonic Thyroid Hormone Insufficiency Causes Structural Anomalies in the Embryo of Domestic Chick, Gallus domesticus","authors":"Juhi Vaishnav,&nbsp;Shashikant Sharma,&nbsp;Suresh Balakrishnan","doi":"10.1111/ahe.13106","DOIUrl":"https://doi.org/10.1111/ahe.13106","url":null,"abstract":"<div>\u0000 \u0000 <p>Thyroid hormone (TH) is essential for growth and development, yet its specific role during embryogenesis remains incompletely understood. This study investigates the impact of TH deficiency, induced by thiourea, a known inhibitor of thyroid peroxidase (TPO), on the development of domestic chicks. Thiourea was administered before thyroid gland formation, and its presence in treated embryos was confirmed through liquid chromatography-mass spectrometry. In silico docking revealed a strong interaction between thiourea and the CCP-like domain of TPO, which was corroborated by TPO activity assays showing reduced enzyme function. This reduction in enzyme activity led to lower embryonic TH levels and increased thyroid-stimulating hormone (TSH) secretion. Morphological analysis of newly hatched chicks revealed significant structural anomalies, particularly in lateral plate mesoderm-derived structures, including omphalocele, limb deformities, anophthalmia and craniofacial defects. Alcian blue and Alizarin red staining demonstrated reduced ossification in ribs and forelimbs, while histological analysis showed incomplete abdominal wall closure and abnormal vertebral column development. Haematological profiling of TH-deficient newly hatched chicks revealed significantly lower blood cell counts, highlighting TH's critical role in haematopoiesis. These findings emphasise the multifaceted role of TH in embryonic development, with potential implications for understanding congenital hypothyroidism and its developmental impacts, especially in regions with limited healthcare access.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prenatal (Second Trimester and Third Trimester) and Postnatal (Third and Fourth Week After Birth) Developmental Radiological Investigation of Sheep Skulls 绵羊头骨的产前(第二和第三孕期)和产后(出生后第三和第四周)发育放射学研究
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-31 DOI: 10.1111/ahe.13105
Barış Can Güzel, Fatma Işbilir
{"title":"Prenatal (Second Trimester and Third Trimester) and Postnatal (Third and Fourth Week After Birth) Developmental Radiological Investigation of Sheep Skulls","authors":"Barış Can Güzel,&nbsp;Fatma Işbilir","doi":"10.1111/ahe.13105","DOIUrl":"https://doi.org/10.1111/ahe.13105","url":null,"abstract":"<div>\u0000 \u0000 <p>The skull is a complex, vital structure made up of many bones. It has been observed that studies on skulls help to determine species and sex. In recent years, craniometric studies have been frequently used to determine morphometric features in animals. In our study, 150 skulls were studied, 50 from the second trimester (25 males and 25 females), 50 from the third trimester (25 males and 25 females), and 50 from the third and fourth week after birth (25 males and 25 females). The skulls were sectioned by computerised tomography and stored in DICOM format. From the images, nine different measurements and five index calculations were made. The similarities and differences between species were determined by ignoring sex differences. Correlation analyses were performed to compare measurement parameters between animal species. In addition, the results of statistical analyses between sexes were evaluated without species distinction. SL, CW and ICI parameters were highly statistically significant between measurements in the second trimester, third trimester and postnatal group (<i>p</i> &lt; 0.01). In the third trimester, the EHC measurement parameter was found to be highly significant between males and female (<i>p</i> &lt; 0.01). In Table 5, the CL parameter was positively correlated with CW, IHC, EHC, ILC, ELC, FMW and FMH. There are very few studies on foetal development. It is predicted that the data obtained can be used in zoo-archaeology, anatomy, surgery and forensic medicine. In addition, radiographic determination of craniometric features will help in the treatment and prognosis of diseases.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Foraminal Indices of the Rat Scapula 大鼠肩胛骨的椎孔指数
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-29 DOI: 10.1111/ahe.13104
Firuze Turker Yavas, Umut Coskun
{"title":"The Foraminal Indices of the Rat Scapula","authors":"Firuze Turker Yavas,&nbsp;Umut Coskun","doi":"10.1111/ahe.13104","DOIUrl":"https://doi.org/10.1111/ahe.13104","url":null,"abstract":"<div>\u0000 \u0000 <p>The nutritive arteries of bones may be injured due to fracture or surgical procedures. Therefore, there are some studies focused on the location of the nutrient foramen (NF) of bones. Rats are the most preferred animals in experimental studies. The purpose of this study is to expose the locational variations of the NF on the rat (<i>Sprague Dawley</i>) scapula. A total of 60 adult rat scapulae (from 16 male and 14 female rats) were used. The diameters of NFs were measured. The length, width, and distances of the NF to the proximal and cranial edges were measured. Foraminal indices were also calculated. It was determined that the average number of NF per scapula was 1.8. The location of the NFs was 52% on the medial aspect and 48% on the lateral aspect. On the medial aspect of the scapula, NFs were frequently found ventrally, on the neck region of the scapula. Laterally, 40 NFs were found in the ventral region of the infraspinatus fossa and only 12 in the ventral region of the supraspinatus fossa. Longitudinal foraminal index 95% confidence intervals were 74.25–79.18 (lateral) and 71.70–75.97 (medial). Transversal foraminal index 95% confidence intervals were 40.98–45.02 (lateral) and 42.91–46.07 (medial). Diameter of the NF 95% confidence interval was 0.21–0.39 mm. The locational knowledge of the NF can be utilized in anatomical or experimental surgery studies. The cranial and proximal edges of the rat scapula may be palpable; surgeons may palpate these regions and easily evaluate the location of the NFs.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The ultrastructure of peroxisomes in the kidney of the camel (Camelus dromedarius) 骆驼(Camelus dromedarius)肾脏过氧化物酶体的超微结构。
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-19 DOI: 10.1111/ahe.13103
Lemiaa Eissa, Mortada M. O. Elhassan, Haider I. Ismail, Hassan A. Ali
{"title":"The ultrastructure of peroxisomes in the kidney of the camel (Camelus dromedarius)","authors":"Lemiaa Eissa,&nbsp;Mortada M. O. Elhassan,&nbsp;Haider I. Ismail,&nbsp;Hassan A. Ali","doi":"10.1111/ahe.13103","DOIUrl":"10.1111/ahe.13103","url":null,"abstract":"<p>Dromedary camels can survive and reproduce in desert areas. The unique anatomical structure of the kidney enables the camel to prevent water loss. The present study aimed to investigate the ultrastructure of the peroxisomes in the normal kidney of the adult dromedary camel. Tissue samples were taken from the cortex and outer medulla of the kidney of eight camels. The samples were then processed for histological and ultrastructural investigations. The epithelial cells of the proximal tubules displayed peroxisomes with varying sizes and shapes. The peroxisomes were observed in either dispersed or clustered arrangement. Each peroxisome exhibited a homogenous matrix enveloped by a single membrane. Several peroxisomes exhibited one or more dark marginal plates that were always strongly associated with the smooth endoplasmic reticulum. The intensity of the peroxisomal matrix differed significantly, either within the same cell or across different cells. The intensity was light or dark, with a few peroxisomes presenting a similar intensity to that of the mitochondria. Some peroxisomes contained nucleoids within their matrix. The peroxisomes in the first and second sections of proximal convoluted tubules were scattered and primarily located in the region between the microvilli and the underlying mitochondria. The peroxisomes in the third region were abundant and frequently aggregated in clusters throughout the cytoplasm. In the fourth region, the number of peroxisomes was low. The proximal straight tubule had a limited quantity of peroxisomes. In conclusion, peroxisomes in the proximal tubule in kidney of normal dromedary camel were similar in shape and size to other mammals; however, heterogeneity exists as a result of differences in species-specific peroxisomal proteins. Peroxisomes are suggested to be a major source of metabolic energy and act as hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) scavengers, resulting in the release of water and oxygen.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Retraction: Comparative study of the ciliary body and iris morphology in the anterior eye chamber of five different vertebrate classes 缩回:五种不同脊椎动物前眼房睫状体和虹膜形态的比较研究。
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-15 DOI: 10.1111/ahe.13102
{"title":"Retraction: Comparative study of the ciliary body and iris morphology in the anterior eye chamber of five different vertebrate classes","authors":"","doi":"10.1111/ahe.13102","DOIUrl":"10.1111/ahe.13102","url":null,"abstract":"<p>RETRACTION: A.A. Seleem, and A.H. Badr, ‘Comparative Study of The Ciliary Body and Iris Morphology In The Anterior Eye Chamber of Five Different Vertebrate Classes’, <i>Anatomia Histologia Embryologia</i> 53, no. 3 (2024): e13052, https://doi.org/10.1111/ahe.13052.</p><p>The above article, published online on 12 May 2024 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, Fred Sinowatz; and Wiley-VCH GmbH, Published by John Wiley &amp; Sons Ltd. The retraction has been agreed after an investigation found that this article was the resubmitted version of a manuscript which had been rejected a month previously, primarily due to concerns about compliance with animal ethical best practices concerning killing. Upon submission of the second manuscript, there was no clearly identifiable indication that it was a resubmission, as required by the journal during the submission process. Without knowledge that the new manuscript was the resubmission of a rejected manuscript, the new handling editors could not benefit from the peer review history. Because of this, they did not appreciate the necessity to confirm whether the ethical concerns raised in the rejected version had been addressed in the resubmitted version. Had the handling editors seen the peer review history, they would have rejected the second manuscript prior to peer review. Additionally, the second manuscript had been edited to omit mention of the unethical practice and investigators were therefore unable to verify which methods were used in the published study, nor could they evaluate them against the accepted ethical practices for handling animals. The authors responded to our inquiry but could not provide either adequate raw data or explanations for our concerns. Therefore, the article must be retracted. The authors have been informed of the retraction and Dr. Seleem, on behalf of both authors, disagrees with this decision.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ahe.13102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141989450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of testicular stromal stem cells on surgically injured testicular tissue in rats 睾丸基质干细胞对大鼠手术损伤睾丸组织的影响
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-13 DOI: 10.1111/ahe.13100
Faruk Altinbasak, Murat Serkant Unal, Semih Tan, Gul Yildirim
{"title":"The effects of testicular stromal stem cells on surgically injured testicular tissue in rats","authors":"Faruk Altinbasak,&nbsp;Murat Serkant Unal,&nbsp;Semih Tan,&nbsp;Gul Yildirim","doi":"10.1111/ahe.13100","DOIUrl":"10.1111/ahe.13100","url":null,"abstract":"<p>This study investigated the effects of transplanted testicular stromal stem cells (tSSCs) on surgically damaged testis tissue. Ten-week-old male Wistar albino rats were divided into three groups: control (<i>n</i> = 6), damage (DG) (<i>n</i> = 6) and testicular stromal stem cell (TSSC) (<i>n</i> = 6) groups. Surgically induced damage was inflicted on the left testes of both the DG and TSSC groups, with no intervention on the right testes. In the TSSC group, damaged testes were treated with transplanted tSSCs, followed by orchiectomy after 15 days. Testes tissues were stained with haematoxylin–eosin (H&amp;E), and recovery rates of functional structures were assessed by modified Johnsen scoring. The effects of tSSCs on testicular tissue were demonstrated by immunohistochemistry using BAX, BCL-2 and caspase 3. Serum testosterone levels were analysed using the enzyme-linked immunosorbent assay (ELISA) method. Surgical damage caused germ cell degeneration in some seminiferous tubules and a decrease in interstitial areas. With tSSC treatment, improvements in testicular architecture were identified through spermatogenesis in the seminiferous tubules and normal histological structures in the interstitial areas. Correspondingly, in the modified Johnsen score, the DG group showed a significant difference compared to the other groups (<i>p</i> = 0.001). High expressions of BAX, BCL-2 and caspase-3 in the DG group revealed prominent features of apoptosis. With the injection of tSSCs, these expressions significantly normalized according to H score analysis (all <i>p</i> = 0.004). Although serum testosterone levels in the tSSC group were higher compared to the control and DG groups, this difference was not statistically significant (<i>p</i> = 0.119). This study suggests transplanting tSSCs could accelerate tissue healing after testicular sperm extraction (TESE) surgery for azoospermia patients, potentially paving the way for a new and important clinical treatment.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141977134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The embryotoxic and teratogenic effects of metamizole sodium 甲硝唑钠的胚胎毒性和致畸作用。
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-12 DOI: 10.1111/ahe.13101
Selvinaz Öztürk, Mustafa Orhun Dayan
{"title":"The embryotoxic and teratogenic effects of metamizole sodium","authors":"Selvinaz Öztürk,&nbsp;Mustafa Orhun Dayan","doi":"10.1111/ahe.13101","DOIUrl":"10.1111/ahe.13101","url":null,"abstract":"<p>Drug use during pregnancy is an important issue that must be investigated due to its adverse effects on maternal and foetal health. This study aimed to determine the embryotoxic and teratogenic effects of in-ovo administered metamizole (dipyrone), which can be used when needed during pregnancy and has potent analgesic, antipyretic, anti-inflammatory, and long bone (tibia and femur) effects. This study used 240 fertile eggs from Atak S breed chickens, divided into eight equal groups: control, vehicle control, and 15.62, 31.25, 62.5, 125, 250 and 500 mg/kg metamizole. The eggs were hatched on the 21st day of incubation, and the chicks' body weights and mortality rates were determined. The right and left femur and tibia bones were resected from the chicks. Anatomical reference points were determined after removing the soft tissues of the bones, and necessary morphometric measures were taken from these points with a 0.01 mm precision using digital callipers. The 100% lethal dose (LD<sub>100</sub>) was identified in the highest examined dose (500 mg/kg) in the Chicken Embryotoxicity Screening Test (CHEST)-I stage. The CHEST-II stage determined the 50% lethal dose (LD<sub>50</sub>). High-dose metamizole affected skeletal development, significantly decreasing tibia and femur lengths and corpus thicknesses and increasing mortality.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative study of gastrointestinal tract size in three parent breeds for the production of dual-purpose organic chickens 用于生产两用有机鸡的三个亲本品种胃肠道大小的比较研究。
IF 0.8 4区 农林科学
Anatomia Histologia Embryologia Pub Date : 2024-08-07 DOI: 10.1111/ahe.13098
N. Neuhaus, M. Lierz, F. Möller Palau-Ribes
{"title":"Comparative study of gastrointestinal tract size in three parent breeds for the production of dual-purpose organic chickens","authors":"N. Neuhaus,&nbsp;M. Lierz,&nbsp;F. Möller Palau-Ribes","doi":"10.1111/ahe.13098","DOIUrl":"10.1111/ahe.13098","url":null,"abstract":"<p>An alternative to culling male hatchlings of layers is breeding dual-purpose chickens. One breeding objective is the ability to digest low-quality feed. Certain measurements of the gastrointestinal tract may be useful indicators of this ability. The present study compared the gastrointestinal tract of adult hens of two layer-type breeds (White Rock (WR), New Hampshire (NH)) and the meat-type ÖTZ (Ökologische Tierzucht gGmbH) Bresse Gauloise (BR), used for the production of dual-purpose organic chickens. Flocks had the same housing and feeding conditions. At slaughter at 19 months, the body weight and gastrointestinal organs of 134 hens (51 WR, 55 NH and 28 BR) were measured. The muscle thickness of the proventriculus and ventriculus and the length and width of the duodenum, jejunoileum, caeca and colorectum were measured and variances between the groups were analysed using a one-factor covariance analysis. Significant differences between the breeds were found in total intestine length and the lengths and/or widths of single gastrointestinal segments. For example NH showed the highest mean total intestinal length and BR showed the lowest mean (NH: 186.73 cm, WR 185.86 cm, BR 157.91 cm; <i>p</i> = 0.001). To our knowledge, this is the first study comparing the gastrointestinal tract size of adult female layer- and meat-type chicken breeds kept under the same feeding and housing conditions. Given the possible relationship between intestinal length parameters and chicken performance, measurement of the gastrointestinal tract may be a simple, quick and inexpensive additional method to help select layer-, meat-type and dual-purpose chickens suitable for organic production when a selection process using genetic markers is not possible.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ahe.13098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141898854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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