Data/hora: 03/06/2024 13:56:36

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 09/06/1997
Data da última atualização: | 09/06/1997
Autoria: | OLSON, T. A.; EUCLIDES FILHO, K.; CUNDIFF, L. V.; KOGER, M.; BUTTS JUNIOR, W. T.; GREGORY, K. E.
Título: | Effects of breed group by location interaction on crossbred cattle in Nebraska and Florida.
Ano de publicação: | 1991
Fonte/Imprenta: | Journal of Animal Science, Champaign, v.69, n.1, p.104-114, 1991.
Idioma: | Inglês
Notas: | CNPGC.
Conteúdo: | Data on 2,744 calves produced in Clay Center, Nebraska and Brookville, Florida were used to evaluate the importance of genotype x location interactions on the reproductive and materna performance of eight breed groups of F1 crosbred cow. A total of 648 F1 crossbred cows include Bos taurus x Bos taurus (Bt x Bt) crosses: Hereford x Angus reciprocal crossbreds (HA and AH), Pinzgauer x Angus (PA), Pinzgauer x Hereford (PH) and Bos indicus x Bos taurus (Bi x Bt) crosses: Brahman x Angus (BA), Brahman x Hereford (BH) Sahiwal x Angus (SA) and Sahiwal x hereford (SH). The first calf  crop was sired by Red Poll bulls. All remaining calf crops were  sired by simmental  bulls. Although the pregmancy rate was 9% higher in Nebraska the rate of unassisted calving and calfsurvival rate were both 4,6% lower in Nebraska Calf  birth and weaning weigth were 8.0 and 15.6 kg heavier in Nebraska than in Florida. Bi x Bt dams exceded  (P v.001) Bt x Bt crossbred dams for all traits except age of calf at weaning  and calf-survival rates (P >.10). Birth weights of calves from Bi x Bt crossbred dams were 3.4 kg lighhter than those from the Bt x Bt crossbred dams. The interactions  of location with the breed group comparison of Bi x Bt vs Bt x Bt crossbred dams was significant for pregnancy rate, calf age at weaning, rate of unassisted calving and al weight traits. Adjusted weaning weights of calves from Ha, AH, PA, PH, BA, BH, BH, Bh, SA and  SH cows were as follows: HA, 194 and 222, AH, 202 and 230; PA 213 and 242; PH, 217 and 245;...
Palavras-Chave: | Bovino de corte; Calf; Estados Unidos; Genotype environment interaction; Interação genótipo ambiente.
Thesagro: | Bezerro; Cruzamento; Melhoramento Genético Animal; Reprodução.
Thesaurus Nal: | beef cattle; breeding; crossbreds; Florida; Nebraska; reproduction; United States.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (4825-1) - ADC - AP - -- - 636.05 -  - 636.05 - DIS