Data/hora: 01/06/2024 04:41:52

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 11/03/2016
Data da última atualização: | 11/03/2016
Autoria: | CASTAGNINO, D. de S.; HüRTER, C. J.; RIVERA, A. R.; LIMA, L. D. de; SILVA, H. G. de O.; BIAGIOLI, B.; RESENDE, K. T. de; TEIXEIRA, I. A. M. de A.
Afiliação: | Douglas de Souza Castagnino, Universidade Estadual Paulista (Unesp) - Jaboticabal, SP, Brasil; Carla Joice Härter, Unesp - Jaboticabal, SP, Brasil; Astrid Rivera Rivera, Unesp - Jaboticabal, SP, Brasil; LISIANE DORNELES DE LIMA, CNPC; Herymá Giovane de Oliveira Silva, Unesp - Jaboticabal, SP, Brasil; Bruno Biagioli; Kleber Tomás de Resende; Izabelle Auxiliadora Molina de Almeida Teixeira.
Título: | Changes in maternal body composition and metabolism of dairy goats during pregnancy.
Ano de publicação: | 2015
Fonte/Imprenta: | Revista Brasileira de Zootecnia, v. 44, n. 3, p. 92-102, 2015.
DOI: | http://dx.doi.org/10.1590/S1806-92902015000300003
Idioma: | Inglês
Conteúdo: | Abstract: The objective of this study was to evaluate the mobilization of nutrients in goats of different gestation types and pregnancy stages. Forty-four Saanen and Oberhasli goats were studied. The goats of each breed and gestation type (single or twin) were slaughtered at different gestational ages (80, 110, and 140 days of pregnancy), forming a completely randomized design in a 2 × 3 × 2 factorial arrangement (two breeds, three gestational ages, and two types of pregnancy). The slaughter procedure involved separating the empty body, mammary glands, uterus with membranes and fetal fluid, and fetus(es). For the females slaughtered at 140 days of pregnancy, blood was collected to analyze metabolites and hormones every 15 days during gestation. The dry matter (DM) intake was lower in goats with twin pregnancies. The relative daily retention rate of the nutrients in the body was positive at 100 days of pregnancy but became negative at 140 days (-0.18±0.25 g DM kg-1 of maternal body d-1) and did not differ with breed or number of fetuses. Fetal growth in twin pregnancies was 66% higher than in single pregnancies. The highest levels of ß-hydroxybutyrate and non-esterified fatty acids were observed beginning at 100 days of gestation. Serum total protein and albumin levels decreased after 125 days of gestation. Serum urea levels were reduced after 80 days of gestation. Plasma 17ß-estradiol levels increased with the advance of pregnancy, and IGF-1 was highest between 60 and 80 days of gestation. The maternal metabolism throughout pregnancy does not vary with the type of pregnancy, and pregnant goats need greater nutritional intake during the final third of the gestational period regardless of the breed or type of pregnancy.
Palavras-Chave: | Hormone profile; Nutritional profile; Perfil hormonal; Perfil metabólico; Pregnancy outcomes; Type of pregnancy.
Thesagro: | Cabra; Caprino; Ingestão; Nutrição animal; Nutriente; Prenhez.
Thesaurus Nal: | Animal nutrition; Energy metabolism; Goats; Nutrients; Pregnancy.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/141040/1/CNPC-2015-Changes.pdf
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (30426-1) - UPC - AP - DD -  -  -  - DIS