Ovarian follicular development, hormonal and metabolic profile in prepubertal ewe lambs with moderate dietary restriction and lipid supplementation
| Autor: | Iraides Ferreira Furusho-Garcia, José Camisão de Souza, Renato Ribeiro de Lima, Guilherme de Paula Nogueira, F. B. Junqueira, Letícia Rodrigues Faria, Débora Regina da Silva, João Pedro Araújo Campos, I. J. Ascari, Nadja Gomes Alves |
|---|---|
| Přispěvatelé: | Universidade Federal de Lavras (UFLA), Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2018 |
| Předmět: |
Ovulation
medicine.medical_specialty media_common.quotation_subject 03 medical and health sciences chemistry.chemical_compound Random Allocation 0302 clinical medicine Endocrinology Blood serum Food Animals Ovarian Follicle Internal medicine Blood plasma Follicular phase Roasted soybean Medicine Insulin Animals Sexual Maturation Progesterone media_common Estrous cycle 030219 obstetrics & reproductive medicine Sheep Triglyceride business.industry Cholesterol 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Animal Feed Dietary Fats Lipids Diet chemistry Dietary Supplements Animal Science and Zoology Animal Nutritional Physiological Phenomena Female medicine.symptom business Food Deprivation Weight gain |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1873-2232 |
| Popis: | Made available in DSpace on 2019-10-06T17:06:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-05-01 To evaluate the effects of moderate dietary restriction and lipid supplementation on ovarian follicular development, hormonal and metabolic profile, thirty-five prepuberal ewe lambs were blocked by body weight and randomly assigned to treatments: AL–US (control) - unsupplemented-diet ad libitum (3.5% ether extract, n = 9); R-US - intake restricted to 85% of the AL–US diet (n = 9); AL-LS - lipid-supplemented-diet ad libitum (9.8% ether extract, n = 8); R-LS - intake restricted to 85% of the AL–LS diet (n = 9), from 95 ± 8 days of age until estrus or 7 months of age. Lipid supplementation did not reduce dry matter intake. Daily weight gain was greater in lambs fed ad libitum. Plasma glucose was greater in the R–LS treatment group, while serum insulin was less with lipid supplementation. There was a treatment by age interaction on total cholesterol, HDL cholesterol and triglyceride serum concentrations. Estrus was detected in 43% of the animals and the overall ovulation rate was 60%. The number of follicles, diameter of the largest follicle, body weight, age and serum progesterone at puberty did not differ among treatment groups. The mean diameter of the largest follicle was greater in lambs having than in those not having ovulations and increased with age in both groups. There was an interaction between the effects of occurrence of ovulation and age on the number of follicles between 3 and 5 mm and > 5 mm. Lipid supplementation and dietary restriction altered the metabolic profile in ewe lambs with no concomitant changes in values for reproductive variables. Department of Animal Sciences Federal University of Lavras – UFLA Department of Veterinary Medicine Federal University of Lavras – UFLA Department of Statistics Federal University of Lavras - UFLA Department of Veterinary Medicine Laboratory of Endocrinology – UNESP Department of Veterinary Medicine Laboratory of Endocrinology – UNESP |
| Databáze: | OpenAIRE |
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