The aim was to evaluate the ingestive behavior and body development of backgrounded heifers from three genotypes in the Brazilian Pantanal. Twenty-two heifers with an average body weight of 180 kg and 15 months of age were used, distributed into three genotype groups: eight Nelore (N), seven Nelore × Angus (½ Angus, NA), and seven Nelore × Pantaneiro (½ Pantaneiro, NP). Nelore and NP heifers exhibited similar grazing times, which were higher compared with NA heifers. It was observed that chest depth, heart girth, rump width between ischia, and hook width between ilia values were higher in NA heifers and similar among the other genotypes. The total and average daily gain of NA heifers was higher than N and NP heifers. It is concluded that there are significant differences in ingestive behavior and body development among genotypes, suggesting variations in the capacity of genotypes to adapt to the Pantanal environment. These results suggest that the crossbreeding between Nelore and Angus maximizes the benefits derived from heterosis, as individuals from this cross are more efficient in weight gain and have body development with desirable characteristics. The crossbreeding of the Pantaneiro breed with Nelore resulted in low body development in the NP heifers, indicating limited heterosis gains from this cross, even in the breed's native environment.
| [1] |
A. A. Habeeb, A. E. Gad, and M. A. Atta, “Temperature-Humidity Indices as Indicators to Heat Stress of Climatic Conditions With Relation to Production and Reproduction of Farm Animals,” International Journal of Biotechnology and Recent Advances1 (2018): 35-50, https://doi.org/10.18689/IJBR-1000107.
|
| [2] |
E. Peripolli, B. N. Stafuzza, M. A. Machado, et al., “Assessment of Copy Number Variants in Three Brazilian Locally Adapted Cattle Breeds Using Whole-Genome Re-Sequencing Data,” Animal Genetics54, no. 3 (2023): 254-270, https://doi.org/10.1111/age.13298.
|
| [3] |
M. V. Silva, M. Vedovatto, A. L. J. Ferraz, et al., “Performance, Body Development and Ingestive Behaviour of Nelore and Crossbred Heifers Finished in a Grazing System,” Tropical Animal Health and Production56, no. 2 (2024): 1-10, https://doi.org/10.1007/s11250-024-03908-0.
|
| [4] |
V. Sejian, M. Bagath, G. Krishnan, et al., “Genes for Resilience to Heat Stress in Small Ruminants: A Review,” Small Ruminant Research173 (2019): 42-53, https://doi.org/10.1016/j.smallrumres.2019.02.009.
|
| [5] |
C. C. N. Nascimento, V. D. F. C. Fonseca, A. Fuller, C. C. Melo Costa, M. E. Beletti, and M. R. B. M. Nascimento, “Can Bos indicus Cattle Breeds Be Discriminated by Differences in the Changes of Their Sweat Gland Traits Across Summer and Winter Seasons?,” Journal of Thermal Biology86 (2019): 102443, https://doi.org/10.1016/j.jtherbio.2019.102443.
|
| [6] |
W. F. Augusto, U. O. Bilego, R. L. Missio, et al., “Animal Performance, Carcass Traits and Meat Quality of F1 Angus-Nellore Steers and Heifers Slaughtered in Feedlot With a Similar Carcass Finishing,” Semina Ciênc Agrar40, no. 4 (2019): 1681-1694, https://doi.org/10.5433/16790359.2019v40n4p1681.
|
| [7] |
G. A. Felix, U. Piovezan, R. S. Juliano, M. C. Silva, and M. C. S. Fioravanti, “Potential for the Use of Local Brazilian Cattle Breeds: Curraleiro Pé-Duro and Pantaneiro,” Encicl Biosf9 (2013): 1715-1741.
|
| [8] |
M. C. P. Barbosa, M. C. S. Fioravanti, V. Peripolli, et al., “Performance, Carcass, and Meat Traits of Locally Adapted Brazilian Cattle Breeds Under Feedlot Conditions,” Tropical Animal Health and Production55, no. 4 (2023): 243, https://doi.org/10.1007/s11250-023-03656-7.
|
| [9] |
L. S. R. Cunha, M. P. G. Resende, H. P. Flores, et al., “Suckling Behaviour, Performance, and Kleiber Index in Calves of Different Genetic Groups Under Shaded and Unshaded Environments,” Tropical Animal Health and Production55 (2023): 7, https://doi.org/10.1007/s11250-022-03435-w.
|
| [10] |
D. V. Armstrong, “Heat Stress Interaction With Shade and Cooling,” Journal of Dairy Science77, no. 7 (1994): 2044-2050, https://doi.org/10.3168/jds.S0022-0302(94)77149-6.
|
| [11] |
D. M. Oliveira, W. C. P. Junior, C. J. Piazzon, L. S. Escobar, M. G. D. Reis, and A. M. Couto, “Blood and Morphometric Parameters of Cattle Submitted to the Long Loop Test,” Medicina Veterinaria13 (2019): 161-168, https://doi.org/10.26605/medvet-v13n2-3038.
|
| [12] |
L. F. Benfica, L. S. Sakamoto, A. F. B. Magalhães, et al., “Genetic Association Among Feeding Behaviour, Feed Efficiency, and Growth Traits in Growing Indicine Cattle,” Journal of Animal Science98, no. 11 (2020): 350, https://doi.org/10.1093/jas/skaa350.
|
| [13] |
B. V. Pires, H. G. Reolon, N. G. Abduch, et al., “Effects of Feeding and Drinking Behaviour on Performance and Carcass Traits in Beef Cattle,” Animals12, no. 22 (2022): 3196, https://doi.org/10.3390/ani12223196.
|
| [14] |
C. C. Oliveira, F. V. Alves, R. G. Almeida, E. L. Gamarra, S. D. J. Villela, and P. G. M. D. A. Martins, “Thermal Comfort Indices Assessed in Integrated Production Systems in the Brazilian Savannah,” Agroforestry Systems92, no. 6 (2017): 1659-1672, https://doi.org/10.1007/s10457-017-0114-5.
|
| [15] |
A. K. Curtis, B. Scharf, P. A. Eichen, and D. E. Spiers, “Relationships Between Ambient Conditions, Thermal Status, and Feed Intake of Cattle During Summer Heat Stress With Access to Shade,” Journal of Thermal Biology63 (2017): 104-111, https://doi.org/10.1016/j.jtherbio.2016.11.015.
|
| [16] |
S. L. B. Porto, K. A. L. Neves, A. S. L. Silva, et al., “Assessment of the Behaviour of Cattle and Buffaloes During an Exhibition at the Baixo Amazonas Agroindustrial Fair,” Agroecossistemas10, no. 2 (2018): 11-24, https://doi.org/10.18542/ragros.v10i2.5195.
|
| [17] |
K. G. Gebremedhin, V. D. F. C. Fonseca, and A. S. C. Maia, “Methods, Thermodynamic Applications, and Habitat Implications of Physical and Spectral Properties of Hair and Haircoats in Cattle,” Animals13, no. 19 (2023): 3087, https://doi.org/10.3390/ani13193087.
|
| [18] |
K. G. Gebremedhin, “ Heat Stress and Evaporative Cooling,” in Environmental Physiology of Livestock, eds. Collier R. J. and Collier J. L., (John Wiley & Sons Inc., 2012), 35-48.
|
| [19] |
C. C. M. Costa, A. S. C. Maia, S. T. Nascimento, C. C. N. Nascimento, V. F. C. Fonseca, and V. de França Carvalho Fonsêca, “Thermal Balance of Nellore Cattle,” International Journal of Biometeorology62, no. 5 (2018): 723-731, https://doi.org/10.1007/s00484-017-1349-6.
|
| [20] |
D. Mitchell, E. P. Snelling, R. S. Hetem, S. K. Maloney, W. M. Strauss, and A. Fuller, “Revisiting Concepts of Thermal Physiology: Predicting Responses of Mammals to Climate Change,” Journal of Animal Ecology87, no. 4 (2018): 660-671, https://doi.org/10.1111/1365-2656.12818.
|
| [21] |
W. C. Silva, J. A. R. Silva, R. N. C. Camargo-Júnior, et al., “Animal Welfare and Effects of Per-Female Stress on Male and Cattle Reproduction – A Review,” Frontiers in Veterinary Science10 (2023): 1-18, https://doi.org/10.3389/fvets.2023.1083469.
|
| [22] |
P. G. L. Lima, M. V. M. Oliveira, M. G. R. Santos, K. V. Silva, and V. Soares, “Behaviour of Pantaneira and Girolando Heifers Reared on Pastures in the Four Seasons of the Year,” Rev Caat32, no. 3 (2019): 805-813, https://doi.org/10.1590/1983-21252019v32n325rc.
|
| [23] |
P. J. Van Soest, Nutritional Ecology of the Ruminant, 2nd ed. (Cornell University, 1994).
|
| [24] |
C. M. Pauler, J. Isselstein, J. Berard, T. Braunbeck, and M. K. Schneider, “Grazing Allometry: Anatomy, Movement, and Foraging Behaviour of Three Cattle Breeds of Different Productivity,” Frontiers in Veterinary Science7 (2020): 494, https://doi.org/10.3389/fvets.2020.00494.
|
| [25] |
J. Jorge Júnior, L. T. Dias, and L. G. D. Albuquerque, “Correction Factors for Visual Scores of Conformation, Precocity and Muscularity at Weaning, for Age of Cow at Calving, Julian Date of Birth and Age at Weaning in Nelore Cattle,” Rev Bras Zoot33 (2004): 2044-2053, https://doi.org/10.1590/S151635982004000800016.
|
| [26] |
D. M. Babale, A. U. Hussein, and Z. Gworgwor, “Relationship Between Liveweights, Linear Body Measurements and Cost Prices of Small Ruminants Sold in and Around Mubi Environs, Adamawa State, Nigeria,” Journal of Dairy and Veterinary Animal Research7, no. 6 (2018): 273-277, https://doi.org/10.15406/jdvar.2018.07.00226.
|
| [27] |
B. L. Rosa, A. A. M. Sampaio, E. A. Oliveira, et al., “Correlations Between Body Measurements and Carcass Characteristics of Nelore Bulls Finished in Feedlots,” Boletim de Industria Animal71, no. 4 (2014): 371-380, https://doi.org/10.17523/bia.v71n4p371.
|
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2025 The Author(s). Animal Research and One Health published by John Wiley & Sons Australia, Ltd on behalf of Institute of Animal Science, Chinese Academy of Agricultural Sciences.
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