Biometria testicular de cordeiros em diferentes idades e alimentados com níveis crescentes de fibra em detergente neutro oriunda da forragem
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Data
2014-01-21
Título da Revista
ISSN da Revista
Título de Volume
Editor
José Henrique Stringhini
Resumo
The experiment was conducted at the Federal University
of Lavras. We used 64 lambs, which, after birth, were
divided into four treatments: Diet A - 8.67; Diet B - 17.34,
Diet C - 26.01 and Diet D - 34.68% neutral detergent fiber
from forage (NDFf) in the diet. At three days of age,
lambs were separated from their mothers and bega receiving sheep milk replacer until weaning at 55 days.
The experimental diets were isonitrogenous, formulated to
meet the nutritional requirements of growing lambs,
except for energy. Four digestibility diet essays were
conducted for determining of metabolizable energy (ME)
at different ages (43, 83, 123 and 173 days of life). The
biometric variables analyzed were weight, testis weight,
scrotal circumference and volume. The experimental
design was in randomized blocks (DBC), in a 4 x 4
factorial arrangement (four levels of dietary NDF four slaughter ages), with 4 replicates per treatment. The
estimation of scrotal circumference by weight proved to
be more efficient than in function of age. The prediction
of the size and weight of the testes through scrotal
circumference was more efficient than by the age and
body weight. Animals fed diets with less fiber from
forage, that is, with greater amount of energy, showed
better results of testis biometry compared to the animals
fed smaller amounts of energy.
Descrição
v. 15, n. 4, p. 384-399, out./dez. 2014.
Palavras-chave
Consumo, Energia, Ovinos, Puberdade, Testículo, Energy, Intake, Puberty
Citação
MACEDO JUNIOR, Gilberto de Lima; ASSIS, Roberta Moura; OLALQUIAGA PEREZ, Juan Ramón ; PAULA, Oiti José; FRANÇA, Patrícia Maria; ALMEIDA, Thaís Romano Vasconcelos. Biometria testicular de cordeiros em diferentes idades e alimentados com níveis crescentes de fibra em detergente neutro oriunda da forragem. Ciência Animal Brasileira, Goiânia, v. 15, n. 4, p. 384-399, out./dez. 2014. Disponível em: <https://www.revistas.ufg.br/index.php?journal=vet&page=article&op=view&path%5B%5D=18820&path%5B%5D=17634>.