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Abstract

The objective of this study was to assess the growth performance of six cattle breed groups from birth to 18 month of age at Songa Research Station in Rwanda. Records of animals born between 1998 and 2008 were evaluated using nested ANOVA for effects of non-genetic factors on growth performance of...

Author(s)
Manzi, M.; Junga, J. O.; Ebong, C.; Mosi, R. O.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2012, 24, 4, pp Article 68
Abstract

For 15 515 Nelore and Charolais × Nelore calves in 2 herds in Brazil, birth weight averaged 32.02 and 30.12 kg respectively, and for 14 481 calves of the 2 types, body weight at weaning averaged 207.32 and 192.75 kg respectively and daily preweaning gain 650 and 604 g. All traits were significantly ...

Author(s)
Alencar, M. M. de; Trematore, R. L.; Leite Oliveira, J. de A.; Almeida, M. A. de
Citation
Revista Brasileira de Zootecnia, 1998, 27, 1, pp 40-46
Abstract

The aim of this study was to use a mixed model methodology in investigating and quantifying factors that affect preweaning and postweaning growth traits in Gudali and Wakwa beef cattle in the tropical highlands of Cameroon. Data were collected on preweaning and postweaning growth performance of...

Author(s)
Ebangi, A. L.; Erasmus, G. J.; Mbah, D. A.; Tawah, C. L.; Messine, O.
Publisher
CIRAD-EMVT (Département d'Élevage et de Médecine Vétérinaire du CIRAD), Cachan Cedex, France
Citation
Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 2002, 55, 2, pp 149-156
Abstract

From birth to weaning, 114 calves from primiparous Nelore × Devon cows were grazed on native pasture at a stocking rate of 0.7, 0.8 or 0.9 cow equivalents (400 kg body weight) per hectare. Calf birth weight averaged 29 kg, and was significantly affected by the sex of calf × age of dam interaction,...

Author(s)
Gottschall, C. S.; Lobato, J. F. P.
Citation
Revista da Sociedade Brasileira de Zootecnia, 1996, 25, 1, pp 36-45
Abstract

Body weight at weaning of 1002 Ayrshire × Boran crossbred calves averaged 138 kg. The weaning weight of calves born in Aug.-Oct. and Nov.-Feb. was 20.2 and 1.0 kg respectively higher than average, and that of calves born in Mar.-May and June-July was 19.9 and 2.5 kg below the average weight. The...

Author(s)
Hagger, C.; Scheiwiller, N.; Streiff, T.
Citation
Agrarforschung, 1994, 1, 11/12, pp 477-479
Abstract

The growth curve from birth to weaning was estimated using data on 35 Retinta calves sired by selected bulls and 1142 calves in 10 commercial herds. The growth curve was significantly affected by herd, parity of dam, season of calving and sex of calf, but not by type of birth (single or twin) or...

Author(s)
Molina, A.; Serrano, M. I.; Burgos, A.; Jiménez, J. M.; Saldo, F. M.; Cabeza de Vaca, F.; Espárrago, E.; Rodero, A.
Citation
Archivos de Zootecnia, 1992, 41, 154, pp 543-548
Abstract

For 1736 Nellore calves in Brazil, body weight at birth and weaning averaged 29.10±0.31 and 154.0±2.4 kg resp. Herd, sire within herd, sex of calf, the contemporary group effect (based on season and year of calving, and management) and age of dam all had a highly significant effect on birth weight, ...

Author(s)
Cardellino, R. A.; Castro, L. F. S.
Citation
Revista da Sociedade Brasileira de Zootecnia, 1987, 16, 1, pp 14-27
Abstract

In 1982, 1983 and 1984 resp., weaning weight (adjusted to 180 days of age) of 300 Aberdeen-Angus (AA) calves in Argentina averaged 143.6±2.0, 147.9±2.3 and 135.5±2.4 kg vs. 172.0±2.1, 178.6±2.4 and 152.9±2.3 for 294 Hereford × AA calves (P<0.05). Weaning weight was significantly affected by sex...

Author(s)
Bustamante, J. L.; Carrillo, J.; Sciotti, A. E.
Citation
Revista Argentina de Producción Animal, 1986, 6, 7-8, pp 461-465
Abstract

Preweaning data on 2856 calves covering a 14-yr period in 3 breed groups of range beef cattle were analysed for birth weight, weaning weight and preweaning av. daily gain. The cattle were Hereford, Beef Synthetic (BS; a closed population with approx. 37% Aberdeen-Angus (AA), 34% Charolais, 21%...

Author(s)
Ahunu, B.; Makarechian, M.
Citation
Canadian Journal of Animal Science, 1986, 66, 2, pp 381-388
Abstract

Data obtained over a 14-yr period on an unspecified number of Brahman and Indo-Brazilian (IB) calves in Mexico were analysed. Birth weight averaged 29.20±0.16 and 28.72±0.13 kg resp. in the 2 breeds (P<0.05), and was significantly affected by year of calving, sex of calf (P<0.01) and the...

Author(s)
Rojas Barbachano, J. E.
Citation
Veterinaria, México, 1986, 17, 4, pp 344-345

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