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Abstract

Using preweaning records of 3822 calves from 11 herds in Victoria, Australia, mean male and female growth rates and corresponding sex differences were calculated for each dam age and herd-year class. From these means, simple regression equations relating sex differences and growth rates were...

Author(s)
Hopkins, I. R.
Citation
Animal Production, 1977, 25, 1, pp 47-51
Abstract

53 Damascus ♀♀ and their 88 kids were studied. In a 214-day lactation, milk yield averaged 458 kg, fat percentage 3.5 and protein percentage 3.4. Milk yield was negatively correlated with fat percentage (-0.39) and protein percentage (-0.33). The correlation between fat percentage and protein...

Author(s)
Constantinou, A.
Citation
Züchtungskunde, 1980, 52, 6, pp 482-487
Abstract

Of 442 Ideal [Polwarth] lambs born in Brazil during a 3-yr period, 89.4% survived to weaning vs. 78.2% of 124 Suffolk lambs. For male and female Ideal lambs, birth weight averaged 3.8 and 3.5 kg resp. vs. 3.6 and 3.5 kg for Suffolk males and females , and weaning weight (at 126 days) averaged 17.8...

Author(s)
Roda, D. S.; Santos, L. E. dos; Campos, B. do E. S. de; Sanchez, M. J. F.
Publisher
Departmento da Producao Animal, Secretaria da Agricultura, Industria e Comercio, Sao Paulo, Brazil
Citation
Boletim de Indústria Animal, 1981, 38, 1, pp 31-43
Abstract

Sex-of-calf and age-of-dam effects on birth weight, preweaning av. daily gain and 180-day weaning weight, and age-of-dam effects on yearling weight, postweaning av. daily gain in males , and 18-month weight in females were studied in a Hereford and a beef synthetic population. The effects of breed, ...

Author(s)
Sharma, A. K.; Willms, L.; Hardin, R. T.; Berg, R. T.
Citation
Canadian Journal of Animal Science, 1982, 62, 3, pp 699-708
Abstract

Data on 418 Guzerat calves were analysed. For calves born in 1977, 1978 and 1979 resp., birth weight averaged 20.5, 30.0 and 28.6 kg, the differences between years being non-significant, preweaning daily gain 502, 623 and 534 g, and body weight at weaning 143.8, 173.8 and 151 kg, the gains and...

Author(s)
Navarro Hernandez, J. A.
Citation
Veterinaria, Mexico, 1982, 13, 3, pp 163
Abstract

Data on 285 Murcian and Granada kids were analysed. Birth weight (pooled data for the 2 breeds) averaged 2.90±0.39 and 2.81±0.58 kg for single-born ♂♂ and ♀♀ resp., 2.78±0.39 and 2.51±0.46 kg for twins, 2.52±0.34 and 2.47±0.28 kg for triplets, and 2.34±0.31 and 2.14±0.24 kg for quadruplets. For 92...

Author(s)
Belinchón Valera, P.; Marqués López, F.; Sánchez López, A.
Citation
Avances en Alimentación y Mejora Animal, 1982, 23, 5, pp 275-283
Abstract

For 974 ♂ and 883 ♀ Tabapuã calves from 46 sires and 937 dams, birth weight averaged 31.35±0.35 kg; it was significantly affected by sire and sex of calf, which accounted for 7.07 and 4.73% resp. of the variation in birth weight. Body weight at 90 days averaged 92.80±0.88 kg, and was significantly...

Author(s)
Ledic, I. L.; Torres, J. R.; Fonseca, C. G.; Pereira, C. S.; Bergmann, J. A. G.; Carneiro, G. C.
Citation
Memorias, Asociación Latinoamericana de Producción Animal, 1983, 18, pp 151
Abstract

Data on 974 ♂ and 883 ♀ Tabapuã calves from 46 sires and 937 dams were analysed. Daily gains from birth to 90 and 205 days and from 90 to 205 days of age averaged 690±1.0, 670±1.0 and 640±1 g resp., and were significantly affected by sire (accounting for 3.49, 3.78 and 3.20% resp. of the total...

Author(s)
Ledic, I. L.; Torres, J. R.; Carneiro, G. G.; Bergmann, J. A. G.; Pereira, C. S.; Fonseca, C. G.
Citation
Memorias, Asociación Latinoamericana de Producción Animal, 1983, 18, pp 152
Abstract

In a preliminary study, observations were carried out on a herd of 300 crossbred goats. Among all 120 parturitions occurring in the first 2 wk of Nov., the incidence of twinning was 35%, and 88% of kids were ♂. Mortality up to sale at 38 days of age was 7.41%, and was significantly higher in ♂♂...

Author(s)
Barbieri, V.; Nizza, A.; Piccolo, V.
Citation
Atti della Società Italiana delle Scienze Veterinarie, 1983, 37, pp 466-469
Abstract

For 1857 and 1339 Tabapuã calves in 2 herds, birth weight averaged 30.35±0.35 and 31.90±0.42 kg resp., 90-day weight 92.80±0.88 and 91.60±1.27 kg, and 205-day weight 166.95±1.60 and 159.29±1.74 kg. Daily gains averaged 694±7 and 663±10 g from birth to 90 days, 666±7 and 621±7 g from birth to 205...

Author(s)
Ledic, I. L.
Publisher
Escola Veterinária de Universidade Federal de Minas Gerais, Brazil
Citation
Efeitos de meio e estimativas de parâmetros genéticos do crescimento pré-desmama de bezerros da raça Tabapuã., 1983, pp 125 pp.

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