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Abstract

The objective of this work was to evaluate the effects of sex of lamb (SL: male, female), type of birth (TB: single, twin), age of dam (AD: 2 to 7 years and older), farm (F: 10 units), and sire nested within farm, as well as first-order interactions that influence the variation of birth weight...

Author(s)
Ramirez-Tello, J. A.; Torres-Hernández, G.; Cruz-Colín, L. de la; Ochoa-Cordero, M. A.; Suárez-Espinosa, J.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2013, 4, 1, pp 117-125
Abstract

The growth performance and the effect of genotype, age of dam, sex, type of birth, weight at birth and amount of milk suckled by Hamdani, Karakul and Morkaraman lambs (n=94) on their body weight during the suckling period were investigated. Birth weight of Hamdani, Karakul and Morkaraman lambs were ...

Author(s)
Kucuk, M.
Publisher
Indian Veterinary Association, Chennai, India
Citation
Indian Veterinary Journal, 2004, 81, 2, pp 172-175
Abstract

The effects of udder type, calving assistance (CA) and other factors on preweaning average daily gain (ADG) and weaning weight of beef composites were analysed. Cows with medium or large, well attached udders weaned faster growing and heavier (P<0.05) calves than cows with small udders or bottle ...

Author(s)
Goonewardene, L. A.; Wang, Z.; Price, M. A.; Yang, R. C.; Berg, R. T.; Makarechian, M.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Livestock Production Science, 2003, 81, 1, pp 47-56
Abstract

Data on 23 litters from Large White (LW) × (LW × Landrace) gilts and 33 litters from 11 LW × Landrace sows in Spain were analysed. Females were mated with a Dutch Landrace (DL) or a Piétrain × Duroc boar. There were significant differences between gilts and sows in average birth weight of female...

Author(s)
Daza, A.; Evangelista, J. N. B.; Gutiérrez Barquín, M. G.
Citation
ITEA Producción Animal, 1997, 93, 2, pp 119-129
Abstract

For 484 Polwarth ewes, lambing in 1979-92, gestation length averaged 148.5 days. Of lambs born, 258 were male and 226 female, and 102 lambings resulted in the birth of twins. The birth weight of 492 lambs averaged 2.74 kg and was significantly affected by sex of lamb, litter size, parity and year...

Author(s)
Lanzoni, N. A.; Queiroz, S. A.; Albuquerque, L. G.; Garcia Sobrinho, A.; Andrade, A. F.
Citation
Ars Veterinaria, 1996, 12, 2, pp 178-187
Abstract

Birth weight increased with increasing parity number to the 5th in dams in the subhumid zone (SH, 1.89 kg) and to the 6th in dams in the humid zone (H, 1.71 kg) dams. Season did not significantly affect birth weight in either zone. Birth type (single vs. twins) had the greatest influence on birth...

Author(s)
London, J. C.; Weniger, J. H.
Citation
Journal of Animal Breeding and Genetics, 1995, 112, 5-6, pp 431-453
Abstract

Author(s)
Avila M., G. A.; Solis R., J.; Ruiz F., A.
Publisher
Universidad Autónoma Chapingo, Chapingo, Mexico
Citation
Revista Chapingo. Serie Zootecnia, 1995, 1, 1, pp 31-34
Abstract

For 1112 Polwarth and 380 Corriedale lambs born in Brazil in 1979-87, birth weight averaged 3.54 and 3.79 kg respectively for males and 3.35 and 3.49 kg for females, the differences between the breeds and sexes being significant. Birth weight was significantly affected by year of birth and age of...

Author(s)
Roda, D. S.; Santos, L. E. dos; Cunha, E. A. da
Publisher
Departmento da Producao Animal, Secretaria da Agricultura, Industria e Comercio, Sao Paulo, Brazil
Citation
Boletim de Indústria Animal, 1995, 52, 1, pp 67-70
Abstract

Approximate and exact Bayesian analyses of survival from birth to weaning, measured as an all-or-none trait were conducted for data on 2554 Rambouillet lambs using an asymptotic normal approximation and Monte Carlo numerical integration with importance sampling respectively. A linear logistic model ...

Author(s)
Matos, C. A. P.; Ritter, C.; Gianola, D.; Thomas, D. L.
Citation
Journal of Animal Science, 1993, 71, 8, pp 2047-2054
Abstract

Data were obtained over a 10-yr period for 3 Polish Lowland flocks comprising 10 613 ewes and 14 277 lambs. Lambing rate was 134.5. The number of lambs dying before weaning was 1776. Type of birth of the ewe had no significant effect on preweaning survival of the offspring on 2 farms, but had a...

Author(s)
Lipecka, C.; Szymanowska, A.; Pięta, M.
Citation
Roczniki Nauk Rolniczych. Seria B, Zootechnicza, 1991, 106, 1-2, pp 121-126

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