Growth of F1Bos taurus × Bos indicus versus Bos indicus beef cattle in Venezuela1. I. Weights at birth, weaning and 18 months

Plasse, D.; Fossi, H.; Hoogesteijn, Rafael; Verde, Omar; Rodríguez, R.; Rodríguez, C. M.; Bastidas, Pedro

doi:10.1111/j.1439-0388.1995.tb00548.x

Cited by 18 publications

(20 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It appears that any advantages of Romosinuano adaptation could be incorporated into a breeding program without concern about the birth weight issues associated with breeding Brahman to Bos taurus females. These results appeared to be consistent with the observation of Plasse et al (1995) that the progeny of Criollo bulls mated to Brahman females had lower birth weight (7%) than purebred Brahman birth weight. Romosinuano-sired males from Brahman dams in the cur- Means within calf sex differ if they do not share a common superscript (P < 0.001).…”

supporting

confidence: 90%

Evaluation of birth and weaning traits of Romosinuano calves as purebreds and crosses with Brahman and Angus1,2

Riley¹,

Chase²,

Coleman³

et al. 2007

Journal of Animal Science

View full text Add to dashboard Cite

The objectives of this work were to evaluate birth and weaning traits, to estimate genetic effects, including heterosis and direct and maternal breed effects, and to evaluate calving difficulty, calf vigor at birth, and calf mortality of Romosinuano as purebreds and as crosses with Brahman and Angus. Calves (n = 1,348) were spring-born from 2002 through 2005 and weaned in the fall of each year at about 7 mo of age. Traits evaluated included birth and weaning weight, ADG, BCS, and weaning hip height. Models used to analyze these traits included the fixed effects of year, sire and dam breeds, management unit, calf sex, cow age, and source of Angus sire (within or outside of the research herd). Calf age in days was investigated as a covariate for weaning traits. Sire within sire breed and dam within dam breed were random effects. Estimates of Romosinuano-Brahman and Romosinuano-Angus heterosis (P < 0.05) were 2.6 +/- 0.3 (8.6%) and 1.4 +/- 0.3 kg (4.7%) for birth weight, 20.5 +/- 1.5 (9.5%) and 14.6 +/- 1.4 kg (7.4%) for weaning weight, 79.2 +/- 6.1 (9.8%) and 55.1 +/- 6.0 g (7.5%) for ADG, 0.16 +/- 0.03 (2.7%) and 0.07 +/- 0.03 (1.2%) for BCS, and 2.77 +/- 0.32 cm (2.4%) and 1.87 +/- 0.32 cm (1.7%) for hip height. Heterosis for Brahman-Angus was greater (P < 0.05) than all Romosinuano estimates except those for Romosinuano-Brahman and Romosinuano-Angus BCS. Romosinuano direct effects were negative and lowest of the breeds, except for the Angus estimate for hip height. Romosinuano maternal effects were the largest of the 3 breeds for birth weight and hip height but intermediate to the other breeds for weaning weight and ADG. A large proportion of Brahman-sired calves from Angus dams (0.09 +/- 0.03; n = 11) was born in difficult births and died before 4 d of age. Brahman and Angus purebreds and Romosinuano-sired calves from Brahman dams also had large proportions of calves that died before weaning (0.09 or greater). Results indicated that Romosinuano may be used as a source of adaptation to subtropical environments and still incorporate substantial crossbred advantage for weaning traits, although not to the extent of crosses of Brahman and Angus.

show abstract

supporting

confidence: 90%

Evaluation of birth and weaning traits of Romosinuano calves as purebreds and crosses with Brahman and Angus1,2

Riley¹,

Chase²,

Coleman³

et al. 2007

Journal of Animal Science

View full text Add to dashboard Cite

show abstract

“…However, wide differences due to farm and year are normally observed under lowland tropical grazing conditions and, overall, the adjusted and non‐adjusted mean weights are within the ranges published for other European B. taurus F 1 crossbreds in Venezuelan beef herds (C evallos et al. 1984; P lasse et al. 1995a,b).…”

Section: Discussionsupporting

confidence: 67%

Relation between Holstein bulls’ proofs for milk in USA and the survival and body weights up to 18 months of their F₁ zebu progeny in Venezuela

Pacheco

Vaccaro

Mejías

et al. 2003

J Animal Breeding Genetics

View full text Add to dashboard Cite

Summary The purpose of the study was to determine the relation between Holstein bulls’ proofs for milk in USA, and the survival and body weights of their F1 progeny under lowland grazing conditions in Venezuela. Semen was selected from sires with the highest proofs available locally (class H, n = 23) or with proofs close to the breed average (class A, n = 18). Mean proofs were 934 kg (H) and 237 kg (A), respectively, when semen was purchased (1989–93), falling to 204 and −386 kg when updated in 2001. Dams were Brahman‐type zebus on seven farms, raising the F1 progeny (n = 866) on native or cultivated pasture with only mineral supplements. Records of survival to 8 and 18 months and weights at birth, 8 and 18 months of age were analysed using linear models. Sire class had no effect on survival or weight at birth, but H progeny were slightly heavier than A progeny at 8 (4.0%, p = 0.06) and 18 months (2.6%, p < 0.05). The interaction class × farm was only significant for survival, with H progeny equal or superior to A groups on six farms. The effect of sire within class was highly significant for survival to 8 months and weight at 18 months. Rank correlations using sires’ milk proofs and F1 progeny weights and survival were not significant. It was concluded that the use of Holstein bulls with high milk proofs may lead to slightly higher 18‐month weights in their F1 progeny in tropical grazing systems, covering the additional cost of H semen, but that sire evaluation for weight gain and progeny survival rates may be justified under these conditions.

show abstract

“…(2000) reported lower WW (188 kg) at 232 days of age for B and 1/4 B. taurus × 3/4 B. indicus calves in Venezuela. Information on postweaning growth traits is scarce for Latin American tropics; but the mean values from this study are greater than those reported for pure B. indicus and for B. taurus × B. indicus calves in Venezuela (Plasse et al. 1995, 2000).…”

Section: Discussioncontrasting

confidence: 76%

Body weights at weaning and 18 months of Zebu, Brown Swiss, Charolais and crossbred heifers in south‐east Mexico

Magaña

Segura-Correa

2006

J Animal Breeding Genetics

View full text Add to dashboard Cite

The objective of this study was to evaluate the body weights up to 18 months of age of 12 breed groups of Zebu (Z), Brown Swiss (BS) and Charolais heifers (CH), and their crosses under tropical conditions. A total of 1434 data on weaning weights adjusted to 240 days (WW8), average daily gain to 240 days (ADG8) and 1025 body weights adjusted to 550 days (BW18) and average postweaning daily gain (ADG18) of heifers born from 1981 to 1995 were used. Cows and calves remained together from birth to weaning and grazed on Guinea grass (Panicum maximum). Years of birth were grouped in three periods, because of the small numbers of observations per year (1981-85, 1986-90 and 1991-95). Similarly, months of birth were grouped in three seasons: dry (February to May), rainy (June to September) and windy and rainy (October to January). Ages of dams were classified in six groups (or=8 years). Breed groups were animals with 12.5%, 25.0%, 50.0%, 62.5%, 75.0% and 100% BS genes and 25.0%, 50.0%, 75.0% and 100% CH genes and also Z and undefined crossbred animals. Data were analysed using a fixed model that included effects of period, and season of birth, age of dam and breed group of heifer. Analyses of variance showed significant (p < 0.05) effects of period, season and breed group for all traits. However, parity was significant (p < 0.05) only for WW8 and ADG8. Interactions among main factors were not significant (p > 0.05). Z heifers gained the least weight to weaning but were similar to BS at 18 months of age. CH were heavier at 18 months of age than BS heifers, but not at weaning. Body weights at 18 months of age of 1/8 and 1/4 BS crossbred heifers were similar (p > 0.05) and lower than F1 (BS x Z) (p < 0.05); however, the later and higher grades of BS had the highest body weights at 18 months of age and were similar to CH and 1/4 CH x 3/4 Z heifers. Undefined crossbred heifers had better performance than the Z breed group. Environmental factors were important sources of variation for pre- and postweaning traits. Under the conditions of this study, crossbred heifers generally performed better than Z heifers up to 18 months of age.

show abstract

Growth of F₁Bos taurus × Bos indicus versus Bos indicus beef cattle in Venezuela¹. I. Weights at birth, weaning and 18 months

Cited by 18 publications

References 2 publications

Evaluation of birth and weaning traits of Romosinuano calves as purebreds and crosses with Brahman and Angus1,2

Evaluation of birth and weaning traits of Romosinuano calves as purebreds and crosses with Brahman and Angus1,2

Relation between Holstein bulls’ proofs for milk in USA and the survival and body weights up to 18 months of their F₁ zebu progeny in Venezuela

Body weights at weaning and 18 months of Zebu, Brown Swiss, Charolais and crossbred heifers in south‐east Mexico

Contact Info

Product

Resources

About

Growth of F1Bos taurus × Bos indicus versus Bos indicus beef cattle in Venezuela1. I. Weights at birth, weaning and 18 months

Cited by 18 publications

References 2 publications

Evaluation of birth and weaning traits of Romosinuano calves as purebreds and crosses with Brahman and Angus1,2

Evaluation of birth and weaning traits of Romosinuano calves as purebreds and crosses with Brahman and Angus1,2

Relation between Holstein bulls’ proofs for milk in USA and the survival and body weights up to 18 months of their F1 zebu progeny in Venezuela

Body weights at weaning and 18 months of Zebu, Brown Swiss, Charolais and crossbred heifers in south‐east Mexico

Contact Info

Product

Resources

About

Growth of F₁Bos taurus × Bos indicus versus Bos indicus beef cattle in Venezuela¹. I. Weights at birth, weaning and 18 months

Relation between Holstein bulls’ proofs for milk in USA and the survival and body weights up to 18 months of their F₁ zebu progeny in Venezuela