Sign-In
Cart
Ensaio de incubação artificial de ovos de tilápia em SODEPAL
Paperback
Currently unavailable to order
Please enter your email and a message will be sent to you when this product becomes available on our website.
ISBN10: 6206238687
ISBN13: 9786206238683
Publisher: Edicoes Nosso Conhecimento
Published: Jul 16 2023
Pages: 52
Weight: 0.20
Height: 0.12 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786206238683
Publisher: Edicoes Nosso Conhecimento
Published: Jul 16 2023
Pages: 52
Weight: 0.20
Height: 0.12 Width: 6.00 Depth: 9.00
Language: Portuguese
A produção animal no Gabão é fraca, nomeadamente no sector da piscicultura. Neste contexto, foi efectuada uma experiência de produção de larvas por incubação artificial de ovos de Oreochromis niloticus no Parque Lékédi. Para o efeito, 60 reprodutores, dos quais 15 machos e 45 fêmeas, foram recolhidos na natureza e semeados em 3 tanques de reprodução de 5 m2. Os pesos individuais variaram de 150 a 350 g, com uma média de 224 g. O comprimento total variou de 20 a 26 cm. Os reprodutores foram alimentados uma vez por dia, de manhã, com um alimento completo flutuante granulado de 3 mm. Após um período de adaptação de 2 semanas, iniciou-se a recolha de ovos da boca das fêmeas, que durou 4 meses. Os ovos foram incubados em garrafas de plástico de 1,5 litros com uma forma cónica em direção ao bico, depois de terem sido desinfectados numa solução de formaldeído a 30%. Os parâmetros físico-químicos da água não foram controlados durante todo o ensaio. O desenvolvimento dos ovos foi possível nestas condições, mas a taxa de sobrevivência foi inferior a 1%.
Also in
Botany & Horticulture
The Light Eaters: How the Unseen World of Plant Intelligence Offers a New Understanding of Life on Earth
Schlanger, Zoë
Hardcover
$26.99
The Hidden Life of Trees: What They Feel, How They Communicate--Discoveries from a Secret World
Wohlleben, Peter
Hardcover
$26.06
Floriography: An Illustrated Guide to the Victorian Language of Flowers Volume 1
Roux, Jessica
Hardcover
$20.89
The Secret Life of Plants: A Fascinating Account of the Physical, Emotional, and Spiritual Relations Between Plants and Man
Tompkins, Peter
Bird, Christopher
Paperback
$18.04
Paint by Sticker: Dogs: Create 12 Stunning Images One Sticker at a Time!
Workman Publishing
Paperback
$16.14
Sam Thayer's Field Guide to Edible Wild Plants: Of Eastern and Central North America
Thayer, Samuel
Paperback
$29.66
Good Nature: Why Seeing, Smelling, Hearing, and Touching Plants Is Good for Our Health
Willis, Kathy
Hardcover
$26.96
The Drunken Botanist: The Plants That Create the World's Great Drinks: 10th Anniversary Edition
Stewart, Amy
Hardcover
From $12.99
Reference Manual of Woody Plant Propagation: From Seed to Tissue Culture
Heuser, Charles W., Jr.
Dirr, Michael A.
Paperback
$24.99
How to Forage for Wild Foods Without Dying: An Absolute Beginner's Guide to Identifying 40 Edible Wild Plants
Zachos, Ellen
Paperback
$15.29
The Ultimate Guide to Houseplant Propagation: Step-By-Step Techniques for Making More Houseplants . . . for Free!
Sisti, Lindsay
Hardcover
$22.49
Pacific Northwest Medicinal Plants: Identify, Harvest, and Use 120 Wild Herbs for Health and Wellness
Kloos, Scott
Paperback
$26.59
The Forager's Harvest: A Guide to Identifying, Harvesting, and Preparing Edible Wild Plants
Thayer, Samuel
Paperback
$26.55
Pacific Northwest Foraging: 120 Wild and Flavorful Edibles from Alaska Blueberries to Wild Hazelnuts
Deur, Douglas
Paperback
$24.69
Botany for Gardeners, Fourth Edition: An Introduction to the Science of Plants
Capon, Brian
Paperback
$20.89
Medicinal Plants of the Pacific Northwest: A Visual Guide to Harvesting and Healing with 35 Common Species
Hammerquist, Natalie
Paperback
$23.70
The Serviceberry: Abundance and Reciprocity in the Natural World (Large Print Edition)
Kimmerer, Robin Wall
Hardcover
$35.99
Wicked Plants: The Weed That Killed Lincoln's Mother & Other Botanical Atrocities
Stewart, Amy
Hardcover
$23.75
Plants Have So Much to Give Us, All We Have to Do Is Ask: Anishinaabe Botanical Teachings
Geniusz, Mary Siisip
Paperback
$20.66
Flowers and Their Meanings: The Secret Language and History of Over 600 Blooms (a Flower Dictionary)
Azoulay, Karen
Hardcover
$19.00
The Book of Killer Plants: A Field Guide to Nature's Deadliest Creations (a Deadly Field Guide to Lethal Plants)
Carlson, Kit
Paperback
$16.10
Eat the Weeds: A Forager's Guide to Identifying and Harvesting 274 Wild Foods
Jordan, Deane
Paperback
$23.70
Midwest Medicinal Plants: Identify, Harvest, and Use 109 Wild Herbs for Health and Wellness
Rose, Lisa M.
Paperback
$25.19
The Bay Area Forager: Your Guide to Edible Wild Plants of the San Francisco Bay Area
Andler, Mia
Feinstein, Kevin
Paperback
$26.60
Northeast Ferns: A Field Guide to the Ferns and Fern Relatives of the Northeastern United States
Chadde, Steve W.
Paperback
$28.95
The Pacific Northwest Native Plant Primer: 225 Plants for an Earth-Friendly Garden
Currin, Kristin
Merritt, Andrew
Paperback
$23.74
The Essential Book of Succulents: A Guide to the 250 Best Varieties for Beginners
Kuroda, Kentaro
Hardcover
$18.04
Plants That Kill: A Natural History of the World's Most Poisonous Plants
Dauncey, Elizabeth A.
Larsson, Sonny
Hardcover
$31.35
Southeast Medicinal Plants: Identify, Harvest, and Use 106 Wild Herbs for Health and Wellness
Shane, Coreypine
Paperback
$26.59
Wildflowers: Discover the Science and Secrets Behind the World of Wildflowers
Thorogood, Chris
Hardcover
$28.50
The Light Eaters: How the Unseen World of Plant Intelligence Offers a New Understanding of Life on Earth
Schlanger, Zoë
Paperback
$18.99
Ashkenazi Herbalism: Rediscovering the Herbal Traditions of Eastern European Jews
Siegel, Adam
Cohen, Deatra
Paperback
$23.70
A Northern Gardener's Guide to Native Plants and Pollinators
Johnson, Lorraine
Colla, Sheila
Paperback
From $24.99
Nature's Garden: A Guide to Identifying, Harvesting, and Preparing Edible Wild Plants
Thayer, Samuel
Paperback
$23.70
Flower Finder: A Guide to the Identification of Spring Wild Flowers and Flower Families East of the Rockies and North of the Smokies,
Watts, May Theilgaard
Paperback
$5.65
Edible Wild Plants: A North American Field Guide to Over 200 Natural Foods
Elias, Thomas
Dykeman, Peter
Paperback
$23.74
Southeast Foraging: 120 Wild and Flavorful Edibles from Angelica to Wild Plums
Bennett, Chris
Paperback
$24.69
Gardening Can Be Murder: How Poisonous Poppies, Sinister Shovels, and Grim Gardens Have Inspired Mystery Writers
McDowell, Marta
Hardcover
$26.10
Northeast Foraging: 120 Wild and Flavorful Edibles from Beach Plums to Wineberries
Meredith, Leda
Paperback
$24.69
The Gardener's Companion to Medicinal Plants: An A-Z of Healing Plants and Home Remedies
Royal Botanic Gardens Kew
Irving, Jason
Hardcover
$21.84
Kew - The Magic of Mushrooms: Fungi in Folklore, Superstition and Traditional Medicine
Lawrence, Sandra
Hardcover
$16.10
Prairie Plants of Illinois: A Field Guide to the Wildflowers and Prairie Grasses of Illinois and the Midwest
Chadde, Steve W.
Paperback
$24.95
The Curanderx Toolkit: Reclaiming Ancestral Latinx Plant Medicine and Rituals for Healing
Garcia Swiecicki, Atava
Paperback
$26.60
Wildcrafted Fermentation: Exploring, Transforming, and Preserving the Wild Flavors of Your Local Terroir
Baudar, Pascal
Paperback
$28.45
Blackthorn's Book of Sacred Plant Magic: Spells, Rites, and Rituals for Living an Aromatic Life
Blackthorn, Amy
Paperback
$23.70
Plants and Animals in the Yoeme World: Ethnoecology of the Yaquis in Sonora and Arizona
Molina, Felipe S.
Felger, Richard S.
Hardcover
$55.00
The Green Witch's Herb and Plant Encyclopedia: 150 Ingredients for Everyday Witchcraft
Morgana, Rowan
Paperback
$16.14
Wildflowers of the Pacific Northwest: Your Way to Easily Identify Wildflowers
Miller, George Oxford
Paperback
$9.45
California Foraging: 120 Wild and Flavorful Edibles from Evergreen Huckleberries to Wild Ginger
Lowry, Judith Larner
Paperback
$24.69
Foraging Mushrooms of the Rocky Mountains
Colorado Mycological Society
Pikes Peak Mycological Society
Paperback
$23.70
The Complete Language of Flowers: A Definitive and Illustrated History - Pocket Edition
Dietz, S. Theresa
Hardcover
$16.14
Southwest Foraging: 117 Wild and Flavorful Edibles from Barrel Cactus to Wild Oregano
Slattery, John
Paperback
$24.69
Pacific Intertidal Life: A Guide to Organisms of Rocky Reefs and Tide Pools of the Pacific Coast
Russo, Ron
Olhausen, Pam
Paperback
$5.65
Foraging: The Ultimate Beginners Guide to Foraging Wild Edible Plants and Medicinal Herbs
Hunt, Jonathan S.
Hardcover
$21.84
Evolutionary Herbalism: Science, Spirituality, and Medicine from the Heart of Nature
Popham, Sajah
Paperback
$26.55
Plants That We Eat: Nauriat Nigiñaqtaut - From the Traditional Wisdom of the Iñupiat Elders of Northwest Alaska
Jones, Anore
Paperback
$25.60
Homeowner's Guide to Training and Pruning Apple Trees: Secrets to Success, From Planting to Maturity
Chadde, Steve W.
Paperback
$6.95
The Encyclopedia of Rootical Folklore: Plant Tales from Africa and the Diaspora
Samuels, Natty Mark
Hardcover
$23.70
Kew: The Witch's Garden: Plants in Folklore, Magic and Traditional Medicine
Lawrence, Sandra
Hardcover
$18.95
Flora of Middle-Earth: Plants of J.R.R. Tolkien's Legendarium
Judd, Walter S.
Judd, Graham A.
Hardcover
$44.99
Maia Toll's Wild Wisdom Tattoos: 60 Temporary Tattoos Plus 10 Collectible Guided-Ritual Cards
Toll, Maia
Paperback
$16.14
The Ecology of Herbal Medicine: A Guide to Plants and Living Landscapes of the American Southwest
Saville, Dara
Paperback
$23.70
The Sierra Forager: Your Guide to Edible Wild Plants of the Tahoe, Yosemite, and Mammoth Regions
Andler, Mia
Paperback
$23.75
Practical Botany for Gardeners: Over 3,000 Botanical Terms Explained and Explored
Hodge, Geoff
Hardcover
$27.55
Yungcautnguuq Nunam Qainga Tamarmi/All the Land's Surface is Medicine: Edible and Medicinal Plants of Southwest Alaska
Fienup-Riordan, Ann
Paperback
$30.35
Cacti and Succulents: On-Point Advice to Keep Your Plants Looking Sharp
Gerrard-Jones, Sarah
Hardcover
$38.00
Southwest Medicinal Plants: Identify, Harvest, and Use 112 Wild Herbs for Health and Wellness
Slattery, John
Paperback
$26.59
National Geographic Herbal: 100 Herbs from the World's Healing Traditions
Hernandez, Mimi Prunella
Hardcover
$38.00
Cruisin' the Fossil Freeway: An Epoch Tale of a Scientist and an Artist on the Ultimate 5,000-Mile Paleo Road Trip
Johnson, Kirk
Paperback
$28.50