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Basic factors affecting efficiency in animal breeding

, : Basic factors affecting efficiency in animal breeding. World Review of Animal Production 27(1): 93-96

On the basis of an analysis of data recorded in the British beef cattle recording scheme, the following conclusions were reached: (1) more cows with high values for most probable producing ability (MPPA) were found in top herds; (2) more calves from herds with a high proportion of cows with high values for MPPA were performance tested at central stations; (3) breeding values and their accuracies were higher for top herds.


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Panagos, J.M.; King, R.R., 1975: Self and mutual speech comprehension by deviant- and normal-speaking children. This study was conducted to determine whether deviant-speaking children can understand their own speech productions when these productions are presented to them from an external source (tape recorder). Two groups of children with normal and devian...

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Slade A., 1987: Quality of attachment and early symbolic play. This research investigated (a) the relationship between the quality of attachment and symbolic play development and (b) differences in the ways mothers of secure and anxious children involved themselves in play. Fifteen mother-child dyads (7 secur...

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Zhao, P.; Shi, L.; Liu, Y.; Wang, Z.; Pu, S.; Zhang, X., 2014: Iron-oxide nanoparticles embedded silica microsphere resonator exhibiting broadband all-optical wavelength tunability. In this Letter, a novel silica microsphere resonator (MSR) embedded with iron-oxide nanoparticles, which possesses broadband all-optical wavelength tunability, is demonstrated. It is generated by using in-line 1550 nm laser ablation of a microfibe...

Dhami M.S.I.; Kerenyi N.A.; Adams A.H.; From L.; Feuer G., 1983: The role of hepatic metabolism on serum melatonin in the rat. Journal of Cell Biology 97(5 PART 2): 304A

Opuszynski, K.; Shireman, JV., 1991: Food passage time and daily ration of bighead carp, Aristichthys nobilis, kept in cages. At water temperatures of 21 degrees to 28.5 degrees C, transit time of digesta of bighead carp (Aristichthys nobilis), 13-2850 g, when fed at 5.7-2% of body weight, was 7.1 to 12.8 h. Transit time was shorter in larger fish due to higher speed: 32...