• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 91
  • 71
  • 46
  • 33
  • 20
  • 4
  • 2
  • Tagged with
  • 1034
  • 336
  • 244
  • 227
  • 227
  • 220
  • 219
  • 113
  • 71
  • 68
  • 67
  • 67
  • 50
  • 48
  • 48
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
721

Selection of beef cattle for efficiency of lean growth

Simm, Geoff January 1983 (has links)
No description available.
722

Physical and economic performance in grass/cereal beef systems

Bozkurt, Yalcin January 1995 (has links)
No description available.
723

The effect of supplementary light on the behaviour, physiology and productivity of cattle

Lomas, Caroline Anne January 1994 (has links)
No description available.
724

The application of computer image analysis to predict conformation in sheep

Komlosi, Istvan January 1994 (has links)
No description available.
725

Studies of the relationship between nutrition and fertililty in the dairy cow

Kitwood, Sarah Elizabeth January 1991 (has links)
No description available.
726

Aspects of ewe productivity under frequent lambing systems for Barri sheep in Yemen and Poll Dorset sheep in the UK

Al-Masoudi, Abdul-Rahman Hamoud January 2000 (has links)
No description available.
727

The use of milk records in cow evaluation and dairy cattle improvement in Kenya

Mosi, Reuben Oyoo January 1984 (has links)
No description available.
728

Observations on the foraging behaviour of sheep using a high-level feeder technique

Al-Shami, Salah Abdulaziz January 1999 (has links)
No description available.
729

Social effects on the feeding behaviour and production of dairy cows

Rind, Muhammad Ismail January 1994 (has links)
No description available.
730

Settlement ecology of juvenile cod Gadus morhua, haddock Melanogrammus aeglefinus and whiting Merlangius merlangus

Demain, Dorota K. January 2010 (has links)
Cod, haddock and whiting are among the most economically important species in the Scottish demersal fishery. Juvenile settlement, the transition from pelagic to demersal habitat, has been identified as an important milestone for these species, but there is insufficient knowledge and data about this life stage. It is believed that the period of settlement has an impact on recruitment success, as important density-dependent processes may take place, such as competition for suitable substrate, refuge or prey. Also, knowledge of settlement timing and duration is relevant to understanding population connectivity and thus to the development of successful conservation measures. Sampling was conducted between April and August 2004, June and September 2005 and June and July 2006 at an inshore site off the east coast of Scotland. Over 4000 0- group cod, haddock and whiting were collected. Comprehensive morphometric and dietary analyses of the samples were carried out, followed by statistical analysis of the data. The results suggested clear differences in the patterns of settlement between the different species. Initially juvenile haddock favoured deeper, further offshore locations, while cod occupied shallower, inshore waters. Whiting settled much later in the season and over protracted period of time. Furthermore, cod showed an affinity for structured habitat, while haddock and whiting were found only over sand. The results also showed that the transition from the pelagic to the demersal habitat was associated with clear and progressive changes in the prey composition of the juvenile fish. The results also showed temporal, spatial and dietary niche segregation of settling juveniles, which is expected to reduce competition for resources and increase the potential for settlement success.

Page generated in 0.0173 seconds