Results 71 to 80 of about 456,598 (193)

Species-Specific Discrimination of Insect Meals for Aquafeeds by Direct Comparison of Tandem Mass Spectra

Animals, 2019
Insect protein has the potential to become a sustainable feed ingredient for the rapidly growing aquaculture industry. In the European Union, insect derived protein is placed under the same legislation as processed animal proteins (PAP).
Ikram Belghit, Erik-Jan Lock, Olivier Fumière, Marie-Caroline Lecrenier, Patricia Renard, Marc Dieu, Marc H. G. Berntssen, Magnus Palmblad, Josef D. Rasinger   +8 more
doaj   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

Insect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami, Ian Orchard, Angela B. Lange   +2 more
wiley   +1 more source

Effect of temperature on the digestibility of non-starch polysaccharide-rich ingredients in Nile tilapia (Oreochromis niloticus)

Aquaculture Reports
This study aimed to investigate the interaction effect of NSP-rich ingredient and rearing temperature on nutrient digestibility of the ingredients in Nile tilapia.
B.K. Dey, M.C.J. Verdegem, M.A.J. Nederlof, J.M. Beddow, K. Masagounder, J. Mas-Muñoz, J.W. Schrama   +6 more
doaj   +1 more source

Exploring the potential of using male‐killing endosymbionts to induce female‐biased insect populations for enhanced biomass production

Insect Science, EarlyView.
Overview of the mindset and long‐term goals with the approach suggested in this study. We provide a first proof of concept that male‐killing endosymbionts can be used to establish female biased populations with higher production efficiency than populations with a 50/50 sex ratio. This biological tool can have marked positive impact on future commercial
Stine F. Laursen, Perran A. Ross, Nadieh de Jonge, Ary A. Hoffmann, Torsten N. Kristensen   +4 more
wiley   +1 more source

Fish meal replacement with poultry byproduct and black soldier fly larvae proteins: effects on growth, flesh quality, bioactivity, and physiological responses of Nile tilapia

Scientific Reports
The demand for fishmeal is increasing, but its supply is stagnating or even declining. There is an urgent need to find an eco-friendly and cost-effective alternative protein source.
Samar M. Aref, Heba A. Alian, Fatma M. Khodary, András Székács, Omar Saeed, Mohamed Hamdy Eid, Abdallah Elshawadfy Elwakeel, M. Alhumedi, Atef Fathy Ahmed, Tamer E. Moussa-Ayoub, Mohamed E. Salem   +10 more
doaj   +1 more source

Protein quality of insects as potential ingredients for dog and cat foods*

Journal of Nutritional Science, 2014
Insects have been proposed as a high-quality, efficient and sustainable dietary protein source. The present study evaluated the protein quality of a selection of insect species.
Guido Bosch, Sheng Zhang, Dennis G. A. B. Oonincx, Wouter H. Hendriks   +3 more
doaj   +1 more source

Prostaglandin E2 (PGE2) signaling regulates fluid excretion and uric acid metabolism in the mosquito Anopheles gambiae

Insect Science, EarlyView.
Prostaglandin E2 (PGE2) signaling via its receptor has integral roles in mosquito physiology, mediating fluid excretion, stimulating hindgut contractions, and in modulating uric acid levels. Together, these results uncover previously unrecognized roles of prostaglandin signaling in osmotic balance and metabolic homeostasis in mosquitoes.
Hyeogsun Kwon, David R. Hall, Houda O. Maaroufi, Ryan C. Smith   +3 more
wiley   +1 more source

Effects of Vector Density on Blood Parasite Spread and Health Consequences for Avian Hosts: An Experimental Epidemiology Blueprint

Integrative Zoology, EarlyView.
In an experimental epidemiology setup, groups of pigeons were exposed to different numbers of infective malaria vectors. Vector number explained the speed of transmission, the final prevalence, and changes in host behavior. ABSTRACT Vector density plays a critical role in the transmission dynamics of vector‐borne diseases and thus in their health and ...
Nayden Chakarov, Tim Brandler, Kai Fischer, Carmen Schwietz   +3 more
wiley   +1 more source

Land, Gendered Labor, and Empire‐Making in Central Sudan

American Anthropologist, EarlyView.
ABSTRACT This article offers an ethnographic analysis of Gulf Arab empire‐making in central Sudan, focusing on an Emirati‐owned farm in the Gezira region as a key site of capitalist extraction and imperial ambition. Through three overlapping vantage points—farm, port, and body—it explores how Emirati investments in Sudanese land, infrastructure, and ...
Nisrin Elamin
wiley   +1 more source

Effect of dietary supplementation with insect meal on anatomical and morphological traits of pheasants (Phasianus colchicus) [PDF]

Animal Science and Genetics
The study aimed to determine the effect of the use of insect meal in the diet of pheasants in aviary breeding on anatomical and morphological traits which can affect their survival in natural conditions and their suitability for introduction.
Marian Flis, Piotr Czyżowski, Sławomir Beeger, Eugeniusz Grela   +3 more
doaj   +1 more source