Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Ian W Purvis"'
Autor:
Manuel Ochoa Cordero, César A. Meza Herrera, Juan M. Vázquez García, Caroline A. Stewart, César A. Rosales Nieto, Ana E. Ochoa Alfaro, Ian W. Purvis, Venancio Cuevas Reyes, Héctor A. Lee Rangel, Graeme B. Martin
Publikováno v:
Animals, Vol 9, Iss 5, p 214 (2019)
Two experiments (Australia and Mexico) tested whether feed intake (FI) and wool production (WP) are affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes were either not pregnant (NPR; n = 6), or c
Externí odkaz:
https://doaj.org/article/30d7633ef1984dc7a936f88c40f99f9e
Autor:
Juan Manuel Vazquez Garcia, César A. Meza Herrera, Cesar A. Rosales Nieto, Venancio Cuevas Reyes, Ana Erika Ochoa Alfaro, Manuel Antonio Ochoa Cordero, Héctor Aarón Lee Rangel, Caroline A. Stewart, Ian W Purvis, Graeme Martin
Publikováno v:
Animals : an Open Access Journal from MDPI
Animals, Vol 9, Iss 5, p 214 (2019)
Animals
Volume 9
Issue 5
Animals, Vol 9, Iss 5, p 214 (2019)
Animals
Volume 9
Issue 5
Two experiments (Australia and Mexico) tested whether feed intake (FI) and wool production (WP) are affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes were either not pregnant (NPR
n = 6),
n = 6),
Publikováno v:
Journal of Applied Aquaculture. 25:206-218
Fish raised in ponds and fed formulated feed also have access to naturally occurring food items. The contribution of these food items to growth of Bidyanus bidyanus was investigated by assigning fish to four treatments: in diet 1, caged fish were fed
Publikováno v:
Freshwater Crayfish. 18:1-5
Publikováno v:
Aquaculture. 313:107-114
To improve growth rates of Cherax spp. raised for human consumption, considerable research has been conducted to establish nutritional requirements for the formulation of a food pellet. The problem with much of this research is that feed requirements
Autor:
Nathan Jeffery, Ian W Purvis
Publikováno v:
Small Ruminant Research. 70:42-47
Current knowledge of the genetic control of fibre production in sheep and goats is reviewed with the focus at the molecular level, particularly on the control of fibre initiation and development in mammals and birds, with the key driver being the new
Autor:
Ian Robert Franklin, Ian W Purvis
Publikováno v:
Genetics, Selection, Evolution : GSE
Genetics Selection Evolution, Vol 37, Iss Suppl 1, Pp S97-S107 (2005)
Genetics Selection Evolution, Vol 37, Iss Suppl 1, Pp S97-S107 (2005)
The opportunity exists to utilise our knowledge of major genes that influence the economically important traits in wool sheep. Genes with Mendelian inheritance have been identified for many important traits in wool sheep. Of particular importance are
Publikováno v:
Aquaculture. 247:169-176
The freshwater yabby, Cherax destructor, is native to south-eastern Australia and has been the basis of a small aquaculture industry since the early 1970s. However, despite the long period of culture the industry has never matured into a large-scale
Autor:
Ian W Purvis, M Henryon
Publikováno v:
Henryon, M & Purvis, I W 2003, ' Eggs and hatchlings of the freshwater crayfish, marron (Cherax tenuimanus Smith), can be artificially incubated at high population densities, and are most successfully incubated at water temperatures between 20°C and 24°C ', Aquaculture Research, vol. 34, no. 14, pp. 1311-1319 . https://doi.org/10.1046/j.1365-2109.2003.00942.x
This study tested two premises. First, that there is a range in water temperature within which to artificially incubate marron eggs and hatchlings, which enables a combination of rapid development, high survival, and the production of large juveniles
Publikováno v:
Aquaculture Research. 33:917-923
Before commencing a breeding programme on a new aquaculture species, it is prudent to identify populations or strains with superior characteristics for commercial production. Information on the comparative performance of populations allows informed d