Zobrazeno 1 - 10
of 54
pro vyhledávání: '"T.C. Cartwright"'
Publikováno v:
Meat Science. 17:187-198
Bulls (n = 115) of four slaughter ages (9, 12, 15 or 18 months) and of 15 genotypes were studied. In this analysis, each bullock was assigned to one of four breed groups-British and British crosses, Brahman and Brahman crosses. Jersey and Jersey cros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13b2f07ac4ad243f24130f4acc8f8709
https://doi.org/10.1016/0309-1740(86)90003-3
https://doi.org/10.1016/0309-1740(86)90003-3
Relationships between Measures of Feed Efficiency and Transmitting Ability for Milk of Holstein Cows
Publikováno v:
Journal of Dairy Science. 66:1937-1946
Feed efficiency measures, gross energy (solids-corrected milk/estimated energy intake) and nitrogen (milk nitrogen/ nitrogen intake) utilization, and apparent digestibilities of ration dry matter, nitrogen, acid detergent fiber, and starch were calcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78684f07b88e4b7f20f4f324cda8a7d0
https://doi.org/10.3168/jds.s0022-0302(83)82032-3
https://doi.org/10.3168/jds.s0022-0302(83)82032-3
Publikováno v:
Journal of Dairy Science. 61:263-266
An experimental design for estimation of feed intake of individual animals fed in pairs or groups is discussed. Procedures are given to compute 95% confidence intervals of estimates. The accuracy a researcher needs for experimentation will suggest wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b98376d40d55bcab8c5919b0c3662a9
https://doi.org/10.3168/jds.s0022-0302(78)83589-9
https://doi.org/10.3168/jds.s0022-0302(78)83589-9
Autor:
T.C. Cartwright
Publikováno v:
Journal of Dairy Science. 66:1409-1418
Cattle carrying genes from dairy breeds or dairy-beef crossbreds make up 20 to 25% of the United States beef supply. Dairy breeds may contribute desired growth and milk traits, but compared to beef breeds at equal finish they have lower dressing perc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec3146b5c505059387ac5b037df04a8d
https://doi.org/10.3168/jds.s0022-0302(83)81953-5
https://doi.org/10.3168/jds.s0022-0302(83)81953-5
Autor:
J.O. Sanders, T.C. Cartwright
Publikováno v:
Agricultural Systems. 4:217-227
A deterministic model for simulating beef cattle production under a wide range of management schemes and environments with cattle differing widely in genotypes for size, growth and milk production is described. In the model, genotypes are specified a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2632feac47a749f62639c53aeb1240f
https://doi.org/10.1016/0308-521x(79)90031-3
https://doi.org/10.1016/0308-521x(79)90031-3
Publikováno v:
Agricultural Systems. 7:245-265
A forage model and a cattle production model were interfaced and adapted for tropical production conditions in East Africa. The objectives of the modelling were to structure and conceptualise a complex system for better comprehension, thereby determi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e619da68813602940e05fc7e94ff69d
https://doi.org/10.1016/0308-521x(81)90038-x
https://doi.org/10.1016/0308-521x(81)90038-x
Publikováno v:
Agricultural Systems. 30:101-115
Simulations of a sheep production system in southern Peru were performed using the Texas AM supplementation before and during breeding season (FLUSH); supplementing all sheep or replacements under one year of age in August, September and October (SUP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72353e406419fcbfa296c27216c2b759
https://doi.org/10.1016/0308-521x(89)90041-3
https://doi.org/10.1016/0308-521x(89)90041-3
Autor:
T.C. Cartwright, J.O. Sanders
Publikováno v:
Agricultural Systems. 4:289-309
The methods used for simulating animal performance in the Texas A&M Cattle Production Systems Model are given and discussed. The GRO subroutine is used to calculate feed intake, changes in weight and skeletal size and, if appropriate, milk production
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43527941e00dab312e934147ff194b73
https://doi.org/10.1016/0308-521x(79)90004-0
https://doi.org/10.1016/0308-521x(79)90004-0
Autor:
T.C. Cartwright, P.E. Doren
Publikováno v:
Agricultural Systems. 15:249-251
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb09e59cba5570db67f715eaaa703874
https://doi.org/10.1016/0308-521x(84)90012-x
https://doi.org/10.1016/0308-521x(84)90012-x
Publikováno v:
Journal of dairy science. 69(3)
Breed additive, maternal, and heterozygotic effects on 11 monthly postpartum body weights, average size, weight gain, age at first calving, and days open were estimated by linear regression analyses from records of 680 purebred and crossbred animals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d21db70c032f3aab4c0a7497c6977ba9
https://pubmed.ncbi.nlm.nih.gov/3711409
https://pubmed.ncbi.nlm.nih.gov/3711409