Zobrazeno 1 - 10
of 23
pro vyhledávání: '"B J McGuirk"'
Autor:
B. J. Mcguirk, J. W. James
Publikováno v:
Zeitschrift für Tierzüchtung und Züchtungsbiologie. 99:308-314
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb7fdfb74912276252ad33f75f7bf676
https://doi.org/10.1111/j.1439-0388.1982.tb00389.x
https://doi.org/10.1111/j.1439-0388.1982.tb00389.x
Publikováno v:
Animal Science. 68:423-426
The Ministry of Agriculture, Fisheries and Food routinely publishes price information for 3-week-old beef + dairy calves sold at major livestock auction centres in England and Wales. For the period 1993/94 to 1996/97, there were average price premium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70d9e8f719e96383d8988e356b635069
https://doi.org/10.1017/s1357729800050426
https://doi.org/10.1017/s1357729800050426
Publikováno v:
Veterinary Record. 161:685-687
Information on the losses associated with lower milk production and reproductive performance, as well as information from a survey of uk dairy herds using beef semen was used to estimate the economic importance of calving difficulties in uk dairy her
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c89b21389cdc1fd165692677f7bcf02
https://doi.org/10.1136/vr.161.20.685
https://doi.org/10.1136/vr.161.20.685
Publikováno v:
Animal Science. 66:47-54
Genetic parameters were estimated for traits recorded in a calving survey for beef sires used in commercial dairy herds in England and Wales. The five traits included in the survey were calving difficulty score, calf mortality to 48 h after birth, ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b730192b3f3f40dfa6b3f4881a877341
https://doi.org/10.1017/s1357729800008821
https://doi.org/10.1017/s1357729800008821
Publikováno v:
Animal Science. 66:35-45
An analysis has been carried out of over 88000 calving survey records for bulls of eight beef breeds tested in commercial dairy herds in England and Wales. The data were collected from 1981 to 1993. The traits analysed were the degree of difficulty a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f2362448a28aa04d8f95798501b6e2a
https://doi.org/10.1017/s135772980000881x
https://doi.org/10.1017/s135772980000881x
Publikováno v:
Animal Science. 52:421-434
Nucleus breeding schemes for dairy cattle give opportunities for selection on characteristics other than milk production, such as food intake or efficiency, and for the application of reproductive technologies such as embryo transfer. The emphasis in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5215c86288afe6cfdbd42c4112a3eeb
https://doi.org/10.1017/s000335610001299x
https://doi.org/10.1017/s000335610001299x
Autor:
B. J. McGuirk
Publikováno v:
Animal Production Science. 49:1100
Early work in the 1950s on the wool growth response of sheep from diverse genotypes for wool production in response to varying planes of nutrition at pasture did not show the significant genotype × environment interactions exhibited in later pen stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b473ab99a7fce94cec87e931313d527
https://doi.org/10.1071/an09032
https://doi.org/10.1071/an09032
Publikováno v:
Proceedings of the British Society of Animal Science. 1996:2-2
The MOET open herd operated by Genus is an open-nucleus breeding programme, designed to identify superior families and individual females. The herd of 250 cows was established over the period 1987-1990, with embryos from high genetic merit dams in No
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27515651f9aaa91ac2bc1317b8a1d999
https://doi.org/10.1017/s0308229600029780
https://doi.org/10.1017/s0308229600029780
Publikováno v:
Proceedings of the British Society of Animal Production (1972). 1990:47-47
Food accounts for 80-90% of the variable costs in dairying in the UK. In contrast to genetic improvement programmes in most other species, no account has been taken of food intake or gross efficiency In dairy breeding programmes, In the UK or elsewhe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c4f99e5018f8b8e0d7164a7e380afcb
https://doi.org/10.1017/s0308229600018286
https://doi.org/10.1017/s0308229600018286
Autor:
B. J. McGuirk
Publikováno v:
Romance Studies. 3:91-111
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c6b2637df7d9d6aaa655b683b109b40
https://doi.org/10.1179/ros.1985.3.2.91
https://doi.org/10.1179/ros.1985.3.2.91