نتایج جستجو برای: gill and gut morphology

تعداد نتایج: 16850571  

Journal: :Aquaculture 2023

The mucosal surfaces provide the first line of defence to opportunistic pathogens in external environment as well other physiological functions including osmoregulation, gas exchange or nutrient absorption gut. Atlantic salmon is most valuable salmonid species cultured worldwide and its anadromous life cycle dictates periods growth both fresh seawater. transition fish between these two habitats...

Journal: :Physiological and biochemical zoology : PBZ 2011
Chun-Yen Huang Chung-Ping Lin Hui-Chen Lin

All fish species in the Anabantoidei suborder are aquatic air-breathing fish. These species have an accessory air-breathing organ, called the labyrinth organ, in the branchial cavity and can engulf air at the surface of the water to assist in gas exchange. It is therefore necessary to examine the extent of gill modification among anabantoid fish species and the potential trade-offs in their fun...

2015
Sybille Hess Amelia S. Wenger Tracy D. Ainsworth Jodie L. Rummer

Worldwide, increasing coastal development has played a major role in shaping coral reef species assemblages, but the mechanisms underpinning distribution patterns remain poorly understood. Recent research demonstrated delayed development in larval fishes exposed to suspended sediment, highlighting the need to further understand the interaction between suspended sediment as a stressor and energe...

Journal: :iranian journal of toxicology 0
olufemi david owolabi department of zoology, university of ilorin, ilorin, nigeria james sunday omotosho department of zoology, university of ilorin, ilorin, nigeria

background: fish have been at high risk of atrazine toxicity. comparative atrazine toxicity on the tissues of clarias gariepinus is scanty. therefore, acute and chronic effects of atrazine on some biochemical parameters in clarias gariepinus were investigated in this study. methods: atrazine toxicity was determined by assessing the responses of glucose, protein, alanine aminotransferase (alt), ...

Journal: :تولیدات دامی 0
داریوش خادمی شورمستی دانشجوی دکتری تخصصی، گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران فرید شریعتمداری استاد گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران محمد امیر کریمی ترشیزی استادیار، گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران هوشنگ لطف اللهیان استادیار پژوهشی، بخش تغذیه و فیزیولوژی، مؤسسۀ تحقیقات علوم دامی کشور، کرج، ایران

the present study was carried out to evaluate the effects of vegetable fat sources and additives on performance and morphological parameters of the small intestine of arain broiler chickens. birds were randomly used in a 2×3 factorial arrangement of dietary treatments included two fat sources (canola or pumpkin seed) and three additives (without additive, 0.1 g/kg probiotic and 0.15 g/kg virgin...

Journal: :Revista de biologia tropical 2016
José Enemir dos Santos Naiara Guimarães Sales Marcella Lourenço dos Santos Fábio Pereira Arantes Hugo Pereira Godinho

Early development of fish larvae is a highly dynamic process and its study may provide important information about ontogenetic development, bioenergetic growth, behaviour, taxonomic characteristics for identification in natural environments, identification of spawning areas, and population monitoring. With the aim to provide knowledge about their growth and behaviour, to support larval rearing,...

2015
Sayani Banerjee Avijit Patra Harresh Adikesavalu Anjan Mondal Thangapalam Jawahar Abraham

Myxozoans are an economically important group of microscopic parasites best known for the diseases they cause in commercially important fish hosts. The classification of myxosporeans is generally based on the morphology of their myxospores. Without molecular data, it is very difficult to identify new or existing species. DNA sequence information is therefore, a prerequisite to taxonomic and phy...

Hojjat Shadman Zahroodi, Mohammad Mirzaei, Motahareh Mirdoosti, Sara Abbasi,

present therapeutic methods for PTSD are not efficient enough to reduce or disappear all the symptoms.several peripheral factors can affect developing and treating PTSD, such as human microbiota. There is a growing volume of evidence showing the effect of gut microbiota on brain and behaviour.PTSD is associated with an inflammatory state in blood, brain and cerebrospinal fluid.also, there is ev...

Journal: :گوارش 0
homauon vahedi shahin merat anahita rashidioon alireza ghoddoosi golrokh olfati reza malekzadeh

background: irritable bowel syndrome (ibs) is the most common disorder diagnosed by gastroenterologists seen in about 40-50% of patients seeking care from a specialist. ibs has been treated with selective serotonin reuptake inhibitors, but there is not enough evidence from controlled trials for their effectiveness. materials and methods: the aim of the study was to compare the effects of fluoxe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید