Zobrazeno 1 - 10
of 27
pro vyhledávání: '"R. W. Ponzoni"'
Publikováno v:
Agrociencia Uruguay. 26
This study considered the inclusion of carcass attributes in breeding objectives and selection criteria developed for pasture-fed Uruguayan production systems for beef cattle, based on British breeds. Correlated responses in dressing percentage (DP),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef22ed26ba3d530171e26368fd8a6bd1
https://doi.org/10.31285/agro.26.1111
https://doi.org/10.31285/agro.26.1111
Publikováno v:
Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und ZuchtungsbiologieREFERENCES. 138(6)
Gastrointestinal nematodes (GIN) constitute a problem in many sheep production systems, including those in Uruguay, causing reduced productivity and increased expenses. The main strategy to control GIN has consisted of the use of anthelmintics. Howev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e87716fd7b901dacc2a2296889b980e9
https://pubmed.ncbi.nlm.nih.gov/34060147
https://pubmed.ncbi.nlm.nih.gov/34060147
Autor:
Siti Azizah Mohd Nor, Nguyen Hong Nguyen, Khairul Rizal Abu Bakar, Azhar Hamzah, Hoong Yip Yee, Wagdy Mekkawy, Hooi Ling Khaw, R. W. Ponzoni
Publikováno v:
Aquaculture Research. 48:47-55
The aims of this study were the estimation of genetic parameters for survival rate from tagging until harvest and the evaluation of the correlated response in survival rate to selection for harvest weight in the genetically improved farmed tilapia (G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e81932832d9b00577e737a704724f655
https://doi.org/10.1111/are.12859
https://doi.org/10.1111/are.12859
Publikováno v:
Journal of Animal Breeding and Genetics. 115:357-373
Summary Breeding objectives were derived for pasture-fed Uruguayan beef cattle production systems, based on multi-purpose breeds. The traits in the breeding objective were weaning rate, calving ease (direct and maternal), sale weight (offspring and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::115ab7dfea2a1d77a4321314eae07e00
https://doi.org/10.1111/j.1439-0388.1998.tb00357.x
https://doi.org/10.1111/j.1439-0388.1998.tb00357.x
Publikováno v:
Reproduction in domestic animals = Zuchthygiene. 47
To satisfy increasing demands for fish as food, progress must occur towards greater aquaculture productivity whilst retaining the wild and farmed genetic resources that underpin global fish production. We review the main selection methods that have b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::84493252a133729d27f25ada0afb2967
https://pubmed.ncbi.nlm.nih.gov/22827379
https://pubmed.ncbi.nlm.nih.gov/22827379
Autor:
R W Ponzoni, D R Gifford
Publikováno v:
Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie. 111(1-6)
Summary Calving success (CS), days to calving (DC), birth weight (BW) and calving ease (CE) were studied in a mixed breed (Hereford, Jersey × Hereford and Simmental × Hereford) beef cattle herd. DC was not normally distributed and a number of trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06706aa2911e571647127fe40f5c2c8f
https://pubmed.ncbi.nlm.nih.gov/21395752
https://pubmed.ncbi.nlm.nih.gov/21395752
Autor:
R. W. Ponzoni
Publikováno v:
Journal of Animal Breeding and Genetics. 109:119-128
Summary The relative merits of calving rate (CR) and calving day (CD) as reproduction traits were examined in the context of a comprehensive breeding objective for beef cattle. It is shown that some criticsms made of CD are not justified. Reproductiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f6bd7937e7fa732a64642982afe2278
https://doi.org/10.1111/j.1439-0388.1992.tb00386.x
https://doi.org/10.1111/j.1439-0388.1992.tb00386.x
Publikováno v:
Small Ruminant Research. 3:283-290
The carcass and non-carcass characteristics of 121 Suffolk-sired lambs from South Australian Merino (M), Poll Dorset X South Australian Merino (PD X M) and Border Leicester X South Australian Merino (BL X M) ewes were compared in two pen experiments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::200e380efa6d5f8133421e54582afeed
https://doi.org/10.1016/0921-4488(90)90045-8
https://doi.org/10.1016/0921-4488(90)90045-8
Autor:
R. W. Ponzoni, D. R. Gifford
Publikováno v:
Journal of Animal Breeding and Genetics. 107:351-370
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7fe62999b3c1419f27137d4d03fc1b2
https://doi.org/10.1111/j.1439-0388.1990.tb00044.x
https://doi.org/10.1111/j.1439-0388.1990.tb00044.x
Publikováno v:
Australian Journal of Agricultural Research. 50:1375
Calculation of micron blowout as the difference between fibre diameter records taken at different ages can produce ‘biased’ estimates of the heritability and genetic correlations due to a scale effect. In some instances, standardisation of the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::869606969d3956989cbd407ab03ea671
https://doi.org/10.1071/ar98192
https://doi.org/10.1071/ar98192