Productive and Reproductive Performance of Ewes at 60 and 90 Days Postpartum Treated by Different Weaning System
Based on the assumption that the time required by the lamb to reach a certain weight at slaughter (slaughter weight) is partially dependent on the amount of milk ingested during suckling, and on the dietary management of the sheep and lamb. Our study proposes to examine the effects of the weaning system on the productive and reproductive performance of ewes supplemented with creep-feeding during grazing on Marandu pastures with their lambs and weaned at two different ages (60 and 90 days). Ewes were divided into two treatment groups (weaning ages) according to birth type (single or twin), in two consecutive years. The experimental period was the time from lambing to weaning. Data were evaluated by analysis of variance and means were compared by Tukey’s test at the 0.05 significance level. There was no effect of year of observation on the parameters measured. Ewes did not show any differences in age and weight at lambing, weight at weaning, weight change, or time return to estrus. The average weight loss was 6 kg and the average time to return to estrus was 49 days. The highest averages for weaning weight (23.25 kg) and total weight gain (19.37 kg) of lambs, and lamb weight-to-ewe weight ratio (51.84%) were observed in weaning at 90 days of age. Body condition score and worm egg count per gram of feces of ewes were not affected by the treatments. The reproductive and productive performance of sheep on tropical pastures is not affected by the weaning system. It is recommended to conduct weaning at 90 days to obtain a better performance of lambs.
Assis, R. M., J. R. O. Pérez, J. C. Souza, R. F. Leite, & J. R. R. Carvalho. 2011. Influence of the suckling management on the estrus return in ewes at post-partum. Cienc. Agrotec. 35: 1009-1016. https://doi.org/10.1590/S1413-70542011000500020
Beasley, A. M., L. P. Kahn, & R. G. Windon. 2012. The influence of reproductive physiology and nutrient supply on the periparturient relaxation of immunity to the gastrointestinal nematode Trichostrongylus colubriformis in Merino ewes. Vet. Parasitol. 188: 306-324. https://doi.org/10.1016/j.vetpar.2012.03.022.
AOAC. 2000. Official Methods of Analysis of AOAC International. 16th ed. Assoc. Off. Anal. Chem., Arlington.
Campos, N. R. F., G. S. Difante, A. H. N. Rangel, S. A. Urbano, J. V. Emerenciano Neto, A. B. G. Costa, R. T. Carvalho Netto, P. H. C. Ribeiro, & J. I. G. Bezerra. 2019. Supplementation strategies and their effects on ewes colostrum and milk compositions in the initial third lactation period. Semina Ciênc. Agrár. 40:1535-1542. https://doi.org/10.5433/1679-0359.2019v40n4p1535
Chaparro, J. J., N. F. Ramirez, D. Villar, J. A. Fernandez, J. Lodoño, C. Arbeláez, L. López, M. Aristizabal, J. Badel, L. G. Palacio, & M. Olivera. 2016. Survey of gastrointestinal parasites, liver, flukes and lungworm in feces from dairy cattle in the high tropics of Antioquia, Colombia. Parasite Epidemiol Control. 1:124-130. https://doi.org/10.1016/j.parepi.2016.05.001
Eloy, A. M. X., P. H. F. Souza, & A. A. Simplicio. 2011. Ovarian activity in Santa Inês sheep under different types of suckling in semi-arid area of Brazil. Rev. Bras. Saud. Prod. Anim. 12: 970-983.
Fernandes, L. S., G. S. Difante, M. G. Costa, J. V. Emerenciano Neto, I. M. M. Araújo, J. L. S. Dantas, & A. L. C. Gurgel. 2020. Pasture structure and sheep performance supplemented on different tropical grasses in the dry season. Rev Mex Cienc Pecu. 11:89-101. https://doi.org/10.22319/rmcp.v11i1.5083
Gordon, H. Mc. L. & H. V. Whitlock. 1939. A new technique for counting nematode eggs in sheep faeces. J. Counc. Scient. Ind. Resear. 12:50-52.
Gurgel, A. L. C., G. S. Difante, J. V. Emerenciano Neto, F. F. S. Roberto, L. G. Zaros, M. G. Costa, L. C. V. Ítavo, & C. C. B. F. Ítavo. 2020. Impact of supplementation with different protein sources on the parasitological profile of ovine matrices and development of lambs. Biosci. J. 36: 496-506. https://doi.org/10.14393/BJ-v36n2a2020-39823
Heimbach, N. S., C. C. B. F. Itavo, L. C. V. Itavo, R. C. Brumatti, G. S. Difante, A. M. Dias, K. L. S. M. Ferelli, T. F. F. S. Arco, A. L. C. Gurgel, C. O. O. Frangiotti, & P. C. G. Silva. 2019. Weaning age of lambs creep-fed while grazing on marandu pasture. J. Agric. Stud. 7:22-37. https://doi.org/10.5296/jas.v7i4.15354
Leal, T. M., J. F. Nunes, B. Nascimento, H. T. S. Nascimento, & R. B. Araújo Neto. 2010. Postpartum estrus of Santa Inês Ewe. Rev. Cient. Prod. Anim. 12:158-161. https://doi.org/10.15528/2176-4158/rcpa.v12n2p158-161
Lopes, S.A., M. F. Paulino, E. Detmann, S. C. Valadares Filho, E. E. L, Valente, L. V. Barros, J. E. G. Cardenas, D. M. Almeida, L. S. Martins, & A. G. Silva. 2014. Supplementation of suckling beef calves with diﬀerent levels of crude protein on tropical pasture. Trop. Anim. Health Prod. 46: 379-384. https://doi.org/10.1007/s11250-013-0500-6
Lopes, S. A., M. F. Paulino, E. Detmann, E. E. Valente, L. N. Rennó, R. F. D. Valadares, J. E. G. Cardenas, D. M. Almeida, F.H. Moura, & C. A. S. Oliveira. 2017. Evaluation of supplementation plans for suckling beef calves managed on tropical pasture. Semina Ciênc. Agrár. 38:1027-1040. https://doi.org/10.5433/1679-0359.2017v38n2p102
Melo, G. K. A., C. C. B. F. Itavo, K. L. S. Monteiro, J. A., Silva, P. C. G., Silva, L. C. V. Itavo, D. G. L. Borges, & F. A. Borges. 2017. Eﬀect of creep-fed supplement on the susceptibility of pasture-grazed suckling lambs to gastrointestinal helminthes. Vet. Parasitol. 239: 26-30. https://doi.org/10.1016/j.vetpar.2017.04.017
Mertens, D. R. 2002. Gravimetric determination of amylase-treated neutral detergent fiber in feeds with refluxing in beaker or crucibles: collaborative study. J. AOAC Internat. 85:1217-1240.
Monteiro, K. L. S. 2014. Efeito do creep-feeding sobre o par matriz-cordeiro criado em pastagens de Brachiaria spp. Campo Grande. 2014. Dissertação (Mestrado) - Faculdade de Medicina Veterinária e Zootecnia, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 2014. p. 58.
NRC (National Research Council). 2007. Nutrient requirements of small ruminants 2th rev. ed. National Academy Press, Washington, DC.
Pompeu, R. C. F. F., M. J. D. Candido, J. N. M. Neiva, M. C. P. Rogerio, M. A. B. Cavalcante, & R. G. Silva. 2009. Performance of sheep raised on Tanzania grass under intermittent stocking with four proportions of concentrate supplementation. Arq. Bras. Med. Vet. Zootec. 61: 1104-1111. https://doi.org/10.1590/S0102-09352009000500013
Roberto, F. F. S., G. D. Difante, L. G. Zaros, & A. L. C. Gurgel. 2018. Nematoides gastrintestinais na ovinocultura de corte sob regime de pastejo. PUBVET. 12:1-12. https://doi.org/10.22256/pubvet.v12n4a65.1-12
Rosalinski-Moraes, F., F. G. Fernandes, A. Munaretto, S. Oliveira, M. O. Wilmsen, M. W. Pereira, & A. C. F. Meirelles. 2012. Método Famacha©, escore corporal e de diarreia como indicadores de tratamento anti-helmíntico seletivo de ovelhas em reprodução Famacha©. Biosc. J. 28:1015-1023.
Santarosa, B. P., G. N. Dantas, D. O. L. Ferreira, B. Santos, R. K. Takahira, M. G. Carvalho, A. A. Silva, & R. C. Gonçalves. 2019. Comparação dos parâmetros bioquímicos entre gestação única e gemelar de ovelhas da raça Dorper durante gestação, parto e pós-parto. Arq. Bras. Med. Vet. Zootec. 71:1307-1315. https://doi.org/10.1590/1678-4162-10699
Santos, M. P. S., & M. M. Godoy. 2017. Desempenho de ovelhas Santa Inês manejadas a pasto e suplementadas com gordura protegida no pós-parto. Rev. Ciênc. Agrovet. 16:136-143. https://doi.org/10.5965/223811711622017136
Sasa, A., K. O. Nonaka, J. C. C. Balieiro, & L. A. Coelho. 2011. Plasmatic progesterone of ewes submitted to male effect and kept at different nutritional conditions. Arq. Bras. Med. Vet. Zootec. 63:1066-1072. https://doi.org/10.1590/S0102-09352011000500004
Souza, w. w., E. A. Moraes, J. M. S. Costa, P. H. F. Sousa, E. S. Lopes Junior, R. P. Oliveira, & R. Toniolli. 2016. Efeito de diferentes concentrações de melatonina em espermatozoides de carneiros sobre estresse oxidativo após criopreservação. Pesq. Vet. Bras. 36: 657-664. https://doi.org/10.1590/S0100-736X2016000700017
Urbano, S. A., M. A. Ferreira, A. H. N. Rangel, D. M. Lima Júnior, R. P. X. Andrade, & L. P. Novaes. 2017. Lamb feeding strategies during the pre-weaning period in intensive meat production systems. Trop. Subtrop. Agroec. 20:49-63.
Valente, E. E. L., M. F. Paulino, L. V. Barros, D. M. Almeida, L. S. Martins, & C. H. A. Cabral. 2014. Nutritional evaluation of young bulls on tropical pasture receiving supplements with different protein:carbohydrate ratios. Asian Australas. J. Anim. Sci. 27:1452-1460. https://doi.org/10.5713/ajas.2014.14085
Valente, E.E.L., M. F. Paulino, E. Detmann, S. C. Valadares Filho, L. V. Barros, N. F. Paula, S. A. Lopes, D. M. Almeida, & L. S. Martins. 2012. Eﬀect of calves’ supplementation on performance, nutritional and behavioral characteristics of their dams. Trop. Anim. Health Prod. 45:487-495. https://doi.org/10.1007/s11250-012-0245-7
Zvinorovaa, P. I., T. E. Halimani, F. C. Muchadeyi, O. Matika, V. Riggioe, K. Dzama. 2016. Prevalence and risk factors of gastrointestinal parasitic infections in goats in low-input low-output farming systems in Zimbabwe. Small Rumin Res. 143:75-83. https://doi.org/10.1016/j.smallrumres.2016.09.005
Copyright (c) 2020 Tropical Animal Science Journal
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors submitting manuscripts should understand and agree that copyright of manuscripts of the article shall be assigned/transferred to Tropical Animal Science Journal. The statement to release the copyright to Tropical Animal Science Journal is stated in Form A. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA) where Authors and Readers can copy and redistribute the material in any medium or format, as well as remix, transform, and build upon the material for any purpose, but they must give appropriate credit (cite to the article or content), provide a link to the license, and indicate if changes were made. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.