Influence of implant strategy on growth performance and carcass characteristics of calf-fed Holstein steers

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:34:18Z
Fecha de publicación2017-01-01
ResumenThe effect of initial implant type (short or long duration) and reimplant scheme on performance and carcass characteristics of calf-fed Holstein steers was evaluated. A total of 240 steers (113.5 ± 6.2 kg) were used in a 349-d trial. The 2 implant strategies were (1) implant on arrival with 43.9 mg of estradiol and reimplant on d 224 with 120 mg of trenbolone acetate and 24 mg of estradiol (Imp-2) and (2) implant on arrival with 100 mg of progesterone and 10 mg of estradiol benzoate and reimplant on d 112 and 224 with 120 mg of trenbolone acetate and 24 mg of estradiol (Imp-3). During the initial 112 d, performance was not affected by implant strategy. From d 112 to 212, Imp-3 had greater ADG (9.6%, P < 0.01), DMI (2.3%, P = 0.04), and gain efficiency (7.0%, P < 0.01) than Imp-2. During the final 137-d period, Imp-3 had similar ADG (P = 0.93) but greater DMI (4.1%, P < 0.01) and lower gain efficiency (3.9%, P < 0.01) than Imp-2. Overall, DMI (2.3%, P = 0.02) and final weight (1.9%, P = 0.07) were greater for Imp-3 versus Imp-2. Treatment effects on gain efficiency and energy utilization were not appreciable (P > 0.75). Implant strategy had minor effects on carcass characteristics (P > 0.10). Although, LM area was greater (4%, P < 0.01) for Imp-3 versus Imp-2. Implanting with a longer-duration implant on arrival followed by a combination implant on d 224 (Imp-2) may result in slightly lower ADG than implanting at 3 intervals (Imp-3).es_ES
Doihttps://doi.org/10.15232/pas.2016-01596es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/6088
Idiomaenes_ES
EditorialElsevier Inces_ES
RelaciónProfessional Animal Scientistes_ES
URL relacionadohttps://doi.org/10.15232/pas.2016-01596es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteProfessional Animal Scientist
Palabra clavefeedlotes_ES
Palabra claveHolsteines_ES
Palabra claveimplantes_ES
Palabra claveperformancees_ES
TítuloInfluence of implant strategy on growth performance and carcass characteristics of calf-fed Holstein steerses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorTorrentera, N.
AutorPlascencia, A.
AutorSalinas-Chavira, J.
AutorZinn, R.A.
AutorTorrentera, N.es_ES
AutorPlascencia, A.es_ES
AutorSalinas-Chavira, J.es_ES
AutorZinn, R.A.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número3es_ES
Rango de páginas327-333es_ES
URL relacionadahttps://doi.org/10.15232/pas.2016-01596
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen33es_ES

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