Estro Pós-Parto em Ovelhas da Raça Santa Inês

Leal, T. M.; Nunes, J. F.; Nascimento, Maria do P. S. C. Bona; Nascimento, Hoston Tomás dos Santos; Neto, Raimundo Bezerra de Araújo

doi:10.15528/2176-4158/rcpa.v12n2p158-161

Cited by 2 publications

(1 citation statement)

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“…By supplementing ewes in early lactation, it is possible to anticipate their return to reproductive activity and reduce the length of postpartum anestrus (Leal et al, 2010). Un-supplemented grazing ewes typically resume their reproductive activities only at the beginning of the rainy season, due to the higher herbage availability and nutrient uptake.…”

Section: G Niwamentioning

confidence: 99%

Productive and Reproductive Performance of Ewes at 60 and 90 Days Postpartum Treated by Different Weaning System

Heimbach

Ítavo

et al. 2020

Trop. Anim. Sci. J.

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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.

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Section: G Niwamentioning

confidence: 99%

Productive and Reproductive Performance of Ewes at 60 and 90 Days Postpartum Treated by Different Weaning System

Heimbach

Ítavo

et al. 2020

Trop. Anim. Sci. J.

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Desenvolvimento ponderal e parâmetros hematológicos e bioquímicos de cordeiros Pantaneiros submetidos a diferentes manejos de amamentação

Braz

Castro

Cansian

et al. 2020

Arq. Bras. Med. Vet. Zootec.

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RESUMO Este estudo teve por objetivo avaliar o desenvolvimento ponderal e a dinâmica dos parâmetros hematológicos e bioquímicos de cordeiros Pantaneiros submetidos a diferentes manejos de amamentação dos 15 aos 43 dias. Foram separados 30 cordeiros em três diferentes grupos (n=10). Os grupos foram caracterizados conforme o tempo de permanência das ovelhas com suas crias em diferentes sistemas de amamentação: MAM24 - ovelhas e cordeiros 24 horas em conjunto; MAM12 - ovelhas e cordeiros 12 horas em conjunto durante a noite; MAM2x30 - ovelhas e cordeiros 30 minutos de manhã e 30 minutos à tarde em conjunto. As coletas de amostras sanguíneas e as pesagens ocorriam a cada sete dias. Houve aumento significativo no peso com o avanço da idade dos cordeiros nos três manejos, mas os tratamentos não diferiram entre si para o ganho de peso. Houve diferenças entre os três tratamentos para a variável hematológica CHGM e para as variáveis bioquímicas AST, glicose, ureia e proteína total. As variáveis bioquímicas foram influenciadas pela faixa etária dos animais. Os diferentes manejos de amamentação não influenciaram o desenvolvimento ponderal dos cordeiros. Não ocorreram alterações patológicas. Alguns parâmetros hematológicos e bioquímicos podem ser influenciados pelo desenvolvimento etário dos cordeiros.

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Estro Pós-Parto em Ovelhas da Raça Santa Inês

Cited by 2 publications

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Productive and Reproductive Performance of Ewes at 60 and 90 Days Postpartum Treated by Different Weaning System

Productive and Reproductive Performance of Ewes at 60 and 90 Days Postpartum Treated by Different Weaning System

Desenvolvimento ponderal e parâmetros hematológicos e bioquímicos de cordeiros Pantaneiros submetidos a diferentes manejos de amamentação

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