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Full-Text Articles in Life Sciences

National Pork Producers Council Maternal Line National Genetic Evaluation Program: A Comparison Of Sow Longevity And Trait Associations With Sow Longevity, T. Serenius, K. J. Stalder, T. J. Baas, J. W. Mabry, R. N. Goodwin, R. K. Johnson, O. W. Robison, M. Tokach, R. K. Miller Aug 2006

National Pork Producers Council Maternal Line National Genetic Evaluation Program: A Comparison Of Sow Longevity And Trait Associations With Sow Longevity, T. Serenius, K. J. Stalder, T. J. Baas, J. W. Mabry, R. N. Goodwin, R. K. Johnson, O. W. Robison, M. Tokach, R. K. Miller

Department of Animal Science: Faculty Publications

Data from the National Pork Producers Council Maternal Line National Genetic Evaluation Program were used to compare longevity of sows from 6 commercial genetic lines and to estimate the phenotypic associations of sow longevity with gilt backfat thickness, ADG, age at first farrowing, litter size at first farrowing, litter weight at first farrowing, average feed intake during lactation, and average backfat loss during lactation. The lines evaluated were American Diamond Genetics, Danbred North America, Dekalb-Monsanto DK44, Dekalb-Monsanto GPK347, Newsham Hybrids, and National Swine Registry. The data set contained information from 3,251 gilts, of which 17% had censored longevity records (sows …


Correlated Responses In Maternal Performance Following Divergent Selection For Heat Loss In Mice, J. M. Mcdonald, Merlyn . K. Nielsen Jan 2006

Correlated Responses In Maternal Performance Following Divergent Selection For Heat Loss In Mice, J. M. Mcdonald, Merlyn . K. Nielsen

Department of Animal Science: Faculty Publications

Divergent selection in mice was applied in 3 independent replicates for high (maintenance high; MH) and low (maintenance low; ML) heat loss for 16 generations. An unselected control (maintenance control; MC) was also maintained in all replicates. Selection ceased for 26 generations; heat-loss measurement and selection resumed at generation 42. Lactation performance, dam weight, dam feed intake, and efficiency of production of pup weight were recorded or calculated for MH and ML dams in all 3 replicates at generation 46 or 47 with the objective of determining whether selection for heat loss has created correlated responses in maternal performance. One-half …


Influence Of Feeding Frequency On Feed Intake, Growth Performance And Nutrient Utilization In European Sea Bass (Dicentrarchus Labrax) Fed Pelleted Or Extruded Diets, Derya Güroy, Emrah Deveci̇ler, Betül Kut Güroy, Ahmet Adem Teki̇nay Jan 2006

Influence Of Feeding Frequency On Feed Intake, Growth Performance And Nutrient Utilization In European Sea Bass (Dicentrarchus Labrax) Fed Pelleted Or Extruded Diets, Derya Güroy, Emrah Deveci̇ler, Betül Kut Güroy, Ahmet Adem Teki̇nay

Turkish Journal of Veterinary & Animal Sciences

In an 83-day-nutrition trial, effects of feed production technique and feeding frequency on feed intake, growth and nutrient utilization were determined in European sea bass (Dicentrarchus labrax). Three thousand six hundred fish (170 ± 2.6 g) were randomly allocated to experimental sea cages (approx. 5800 l) according to a 2 x 2 experimental plan [2 processing techniques: steam pelleted diet (P) vs. extruded diet (E); 2 feeding frequencies: twice (2) vs. 3 times (3)]. The P3 group consumed significantly (P < 0.05) more feed than the fish fed extruded diets, irrespective of feeding frequency. Growth rates of all groups did not display any significant difference (P > 0.05) in terms of final weight (FW) or specific growth rate (SGR), although there was a decreasing trend in final …


The Cost-Benefit Analysis Of Early Weaned Piglets Fed With Different Protein Sources, Ferhan Kaygisiz, Fi̇li̇z Akdağ, Özkan Elmaz, Can Kutay Jan 2006

The Cost-Benefit Analysis Of Early Weaned Piglets Fed With Different Protein Sources, Ferhan Kaygisiz, Fi̇li̇z Akdağ, Özkan Elmaz, Can Kutay

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to analyse the economic effects of early weaning and of feeding with diets containing different protein sources in early weaned piglets. One hundred and fourteen piglets were used in this study. Fifty-four piglets were fed by suckling their mothers for 20 days and they weaned on day 21 and they were equally assigned to 2 experimental groups and 1 control group. Sixty piglets were fed by suckling their mothers for 27 days and they were weaned on day 28. These piglets were also assigned to 2 experimental groups and 1 control group. The first experimental …