scholarly journals Effect of Sire Birth Weight on Calving Difficulty and Maternal Performance of Their Female Progency

1999 ◽  
Vol 12 (1) ◽  
pp. 5-8 ◽  
Author(s):  
U. Paputungan ◽  
M. Makarechian ◽  
M. F. Liu
Keyword(s):  
Birth Weight ◽  
Maternal Performance ◽  
Calving Difficulty

Performance of Hereford and Friesian × Hereford dams and their Hereford- and Friesian-sired progeny in a Mediterranean environment

1981 ◽  
Vol 21 (109) ◽  
pp. 137 ◽  
Author(s):  
DR Gifford ◽  
PC Stephens ◽  
RJ Lampe ◽  
RW Ponzoni ◽  
HR Day
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
South Australia ◽  
Mortality Rates ◽  
Mediterranean Environment ◽  
Beef Industry ◽  
Slaughter Age ◽  
Maternal Performance ◽  
Calving Difficulty ◽  
Practical Implications

The reproductive and maternal performance of Hereford and Friesian x Hereford dams and the growth and carcase characteristics of their Hereford- and Friesian-sired calves in the Mediterranean environment of South Australia are reported. The two dam breeds did not differ in fertility and their calves had similar mortality rates. Even though calves from Hereford dams were lighter at birth than those from crossbred dams (30.8 vs 33.0 kg), Hereford dams required more assistance at calving (16% vs 8%). There were no differences in birth weight and incidence of calving difficulty of Hereford- and Friesian-sired progeny, but Friesian-sired progeny had a higher mortality rate (11% vs 5%). Calves from crossbred dams were heavier at weaning than those from Hereford dams (274 vs 235 kg) but Hereford- and Friesian-sired progeny were the same weight at weaning. Friesian-sired steers were heavier than Hereford-sired steers at 19- 21 months of age (478 vs 448 kg). The carcase characteristics of progeny of the two dam breeds did not differ significantly at either slaughter age. There were no significant differences in carcase characteristics of Hereford- and Friesian sired progeny slaughtered at 8- 10 months of age. When progeny were slaughtered at 19- 21 months of age, carcases of Friesian-sired steers were heavier (238 vs 222 kg) and leaner (0.49 vs 0.86 mm) than those of Hereford-sired steers. The practical implications of the use of Hereford and Friesian breeds in the southern Australian beef industry are discussed.

scholarly journals Calving difficulty as related to body weights and measurements of cows and calves in a herd of Gascon breed

2008 ◽  
Vol 53 (No. 5) ◽  
pp. 187-194 ◽  
Author(s):  
D. Bureš ◽  
L. Bartoň ◽  
R. Zahrádková ◽  
V. Teslík ◽  
M. Fiedlerová
Keyword(s):  
Birth Weight ◽  
Correlation Coefficients ◽  
Live Weight ◽  
The Body ◽  
Body Measurements ◽  
Factors Influencing ◽  
Bull Calves ◽  
Pelvic Area ◽  
Body Weights ◽  
Calving Difficulty

This study was conducted to evaluate the body weights and measurements of 86 Gascon calves and their dams. The effects of the course of parturition, parity of the dams, sex of the calves, and live- or stillborn calves were analysed. Phenotypic correlations between different measurements and calf birth weight as well as the course of parturition were calculated. Internal pelvic measurements were significantly associated with the occurrence of assisted calvings and stillborn calves. Primiparous cows had a smaller pelvic area, lower live weight, and more frequent difficulty in calving compared to older cows. A higher incidence of difficult calvings was observed in bull-calves due to their higher (<I>P</i> < 0.001) birth weight. High and significant correlation coefficients were determined between the birth weight and body measurements of the calves as well as between the calf birth weight and the course of parturition (<I>r</i> = 0.34; <I>P</i> < 0.01). Negative correlations (<I>r</i> = –0.21 to –0.30) were calculated between the internal pelvic measurements of the cows and the course of parturition score. It was concluded that the internal pelvic measurements of the dam and the size and shape of the calf were the factors influencing the course of parturition in this study to the largest extent.

Genetic parameters for calving difficulty, stillbirth, and birth weight for Hereford and Charolais at first and later parities1

2004 ◽  
Vol 82 (2) ◽  
pp. 375-383 ◽  
Author(s):  
S. Eriksson ◽  
A. Näsholm ◽  
K. Johansson ◽  
J. Philipsson
Keyword(s):  
Birth Weight ◽  
Genetic Parameters ◽  
Calving Difficulty

Genetic parameters for calving difficulty, stillbirth, and birth weight for Hereford and Charolais at first and later parities1

2004 ◽  
Vol 82 (2) ◽  
pp. 375-383
Author(s):  
S. Eriksson ◽  
A. Näsholm ◽  
K. Johansson ◽  
J. Philipsson
Keyword(s):  
Birth Weight ◽  
Genetic Parameters ◽  
Calving Difficulty

scholarly journals Recursive systems model of fetal birth weight and calving difficulty in beef heifers

2002 ◽  
Vol 82 (1) ◽  
pp. 19-27 ◽  
Author(s):  
P. R. Tozer ◽  
D. L. Scollard ◽  
T. L. Marsh ◽  
T. J. Marsh
Keyword(s):  
Birth Weight ◽  
Linear Model ◽  
Logit Model ◽  
Management Technique ◽  
Ordered Logit ◽  
Ordered Logit Model ◽  
Systems Model ◽  
Cow Calf ◽  
Calving Difficulty ◽  
Recursive Systems

The purpose of this study was to use readily available information, including dam pelvic width (PW) and height (PH) and the fetal coronet band (CB) measurement to predict the calving difficulty (CD) score of first-calf heifers under commercial ranch conditions. Data were collected from a cow-calf ranch over a 3-yr period. Using a recursive system of equations, two models were estimated. First, a linear model was used to predict birth weight (BTW) based on the fetal CB measurement. Second, an ordered logit model was used to predict calving difficulty score based on a nonlinear relationship with birth weight, pelvic dimensions of the dam, and interaction terms. The linear model demonstrated that BTW could be predicted using the CB measurement, both the intercept and slope coefficients were significant at P < 0.001. The model R2 was equal to 0.57 and the standard error of the predicted birth weight was 2.77 kg. The ordered logit model correctly predicted 468 of 684 (68.4%) of the CD scores. The results of this research suggest that it is possible to predict dystocia or calving difficulty on a case-by-case basis with information that is available to ranchers or ranch managers early in the parturition process. The management technique presented has been successfully adopted by some large-scale cow-calf operations, thus the results have commercial applications for beef producers. Key words: Dystocia, heifers, beef, recursive systems, ordered logit, coronet band, birth weight

scholarly journals Evaluation of gestation length and birth weight of offspring of Polish native cattle breeds in context of estimating genetic parameters

2018 ◽  
Vol 63 (No. 8) ◽  
pp. 323-330
Author(s):  
Nienartowicz-Zdrojewska Anna ◽  
Sobek Zbigniew ◽  
Różańska-Zawieja Jolanta
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Gestation Length ◽  
Black And White ◽  
Research Material ◽  
Native Cattle ◽  
Newborn Calves ◽  
Calving Season ◽  
Calving Difficulty ◽  
Birth Body Weight

Research material included data on gestation length of 15 436 cows of Polish native breeds. These were: White Backed (BG; 324 records), Polish Red (RP; 5396 records), Polish Black and White (ZB; 3508 records), and Polish Red and White (ZR; 6208 records). The calvings took place in 2005–2009, and we analysed two calving seasons, lactation number, the degree of calving difficulty, sex, and body weight of newborn calves. The effect of birth year on gestation length and birth weight of offspring was statistically significant, whereas calving season had statistically highly significant effect on both. Gestation length in the analysed breeds was 281.02, 283.35, 280.5, 281.53 for BG, RP, ZB, and ZR, respectively. The birth body weight heritability was 0.13 (RP), 0.33 (ZB) and 0.40 (ZR).

The repeatability of maternal performance in inbred, outbred and linecross large white sows

1969 ◽  
Vol 11 (1) ◽  
pp. 47-51
Author(s):  
J. W. B. King ◽  
Z. Gajić
Keyword(s):  
Birth Weight ◽  
Large White ◽  
Total Birth ◽  
Maternal Characteristics ◽  
Arithmetic Average ◽  
Litter Weight ◽  
Individual Weight ◽  
Maternal Performance ◽  
Average Individual ◽  
Better Than

SUMMARYRepeatability estimates for various maternal characteristics were calculated for 301 inbred, 150 outbred and 135 linecross Large White sows each with two litters. The estimated repeatabilities did not differ significantly between the three kinds of sow and the arithmetic average of the values obtained were as follows: number of pigs born alive 0·24; number of pigs born dead 0·05; total birth weight of litter 0·25; average individual birth weight 0·41; number of pigs alive at 50 days 0·07; total litter weight at 50 days 0·14; average individual weight at 50 days 0·15.The linecross sows produced and weaned more pigs than the outbred sows, which in turn performed better than the inbred sows. Changes in performance from the first to the second litter were similar for all three groups of sows.

Correlation among Calf Birth Weight, Calving Difficulty and Gestation Length in a Korean Holstein Dairy Cattle Herd

2015 ◽  
Vol 26 (2) ◽  
pp. 85-89
Author(s):  
Yun Ho Choy ◽  
◽  
Jeong Il Won ◽  
Ho Baek Yoon ◽  
Kwang Hyun Cho ◽  
...  
Keyword(s):  
Birth Weight ◽  
Dairy Cattle ◽  
Cattle Herd ◽  
Gestation Length ◽  
Dairy Cattle Herd ◽  
Calving Difficulty
Sign in / Sign up

Export Citation Format

Share Document