Data/hora: 19/06/2024 03:28:48

Biblioteca(s): | Embrapa Semiárido.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 26/01/2024
Data da última atualização: | 26/01/2024
Autoria: | OLIVEIRA, B. Y. de S.; MOURA, C. M. da S.; ARAUJO, G. G. L. de; TURCO, S. H. N.; VOLTOLINI, T. V.; FURTADO, D. A.; MEDEIROS, A. N. de; GOIS, G. C.; CAMPOS, F. S.
Afiliação: | BRUNA YASNAIA DE SOUZA OLIVEIRA, UFPB; CLAUDETE MARIA DA SILVA MOURA, Instituto Federal de Educação Ciência e Tecnologia Baiano, Campus Santa Inês, BA; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; SILVIA HELENA NOGUEIRA TURCO, Univasf; TADEU VINHAS VOLTOLINI, CPATSA; DERMEVAL ARAÚJO FURTADO, UFPB; ARIOSVALDO NUNES DE MEDEIROS, UFPB; GLAYCIANE COSTA GOIS, Universidade Federal do Maranhão, Chapadinha, MA; FLEMING SENA CAMPOS, Universidade Federal do Maranhão, Chapadinha, MA.
Título: | Thermoregulatory responses and ingestive behavior of sheep subjected to water restriction and high- and low-energy diets in a semi-arid environment.
Ano de publicação: | 2024
Fonte/Imprenta: | Journal of Thermal Biology, v. 119, 103749, Jan. 2024.
Idioma: | Inglês
Conteúdo: | The aim of the study was to evaluate the effect of water restriction and low- and high-energy diets on sheep's thermoregulatory responses and ingestive behavior. Forty sheep, non-castrated, with an average body weight of 18.85 kg (SD = 2.80 kg) and an average age of 5 months were assigned to a 2 × 2 factorial arrangement, comprising 2 diets (high- and low-energy) and 2 water offers (ad libitum and 50% water restriction), with 10 replicates. Thermoregulatory responses were evaluated in two periods (morning and afternoon). There was an interaction effect of Diet x Water supply x Periods on respiratory rate (P < 0.05). High-energy diets resulted in increased heart rate, idleness, dry matter feeding and rumination efficiency, and water intake. Low-energy diets increased feeding time, rumination time, the number of ruminal cuds, chews per day, total chewing time, neutral detergent fiber intake and rumination efficiency, number of ruminations per day, average duration of rumination, and defecation frequency. Water supply affected heart rate and idleness (P < 0.05). Sheep had higher values of heart rate and rectal and surface temperatures during the afternoon (P < 0.05). Water restriction combined with a low-energy diet and high environmental temperature leads to a reduction in the respiratory rate of Santa Inês crossbred sheep. Regardless of the dietary energy value, water restriction by 50% of the daily requirement of sheep reduces dry matter intake and increases idleness.
Palavras-Chave: | Bem estar animal; Frequência cardíaca; Frequência respiratória; Pequenos ruminantes; Restrição hídrica.
Thesagro: | Ovino; Produção Animal.
Thesaurus Nal: | Animal production; Animal welfare; Heart rate; Respiratory rate; Small ruminants.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (60842-1) - UPC - AP - DD -  -  -  - DIS