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Intake, digestibility, and performance of lambs fed spineless cactus cv. Orelha de Elefante Mexicana.
Lopes, Levi Auto; Ferreira, Marcelo de Andrade; Batista, Ângela Maria Vieira; Maciel, Michel do Vale; de Andrade, Rodrigo Barbosa; Munhame, Joana Albino; Silva, Tomás Guilherme Pereira da; Cardoso, Daniel Barros; Véras, Antonia Sherlânea Chaves; Carvalho, Francisco Fernando Ramos de.
Affiliation
  • Lopes LA; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Ferreira MA; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Batista ÂMV; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Maciel MDV; Animal Science Department, Federal University of Amazonas, Macurany street, 1805, Jacareacanga, Parintins, Amazonas, 69152-420, Brazil.
  • de Andrade RB; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Munhame JA; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Silva TGPD; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Cardoso DB; Academic Unit of Garanhuns, Federal Rural University of Pernambuco, Av. Bom Pastor, 560, Boa Vista, Garanhuns, Pernambuco, 55292-270, Brazil.
  • Véras ASC; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
  • Carvalho FFR; Animal Science Department, Federal Rural University of Pernambuco, Dom Manoel de Medeiros street, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
Asian-Australas J Anim Sci ; 33(8): 1284-1291, 2020 Aug.
Article in En | MEDLINE | ID: mdl-31480148
ABSTRACT

OBJECTIVE:

To evaluate the effects of the carmine cochineal-resistant spineless cactus genotypes cv. Orelha de Elefante Mexicana (Opuntia) and Miúda (Nopalea) on the intake and digestibility of nutrients, ingestive behavior, performance, and ultrasound measurements of growing lambs.

METHODS:

Thirty-six male (non-castrated) Santa Inês lambs were used, with an average age of 6 months and an initial average weight of 22.0±2.9 kg. They were distributed in a completely randomized design with 3 treatments (Tifton hay, Nopalea and Opuntia) and 12 replications, using initial weight as a covariate. The experimental period was 86 days, with the first 30 days used for the adaptation of the animals to the facilities, diets and management, and the remaining 56 days used for evaluation and data collection.

RESULTS:

The intake and apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), total carbohydrates (TC), non-fibrous carbohydrates (NFC), and total digestible nutrients (TDN) showed a significant difference (p<0.05) as a function of the diets, with the Nopalea treatment (p<0.05) increasing DM intake (g/kg and % body weight [BW]), CP, TDN, and TC digestibility, whereas the Tifton hay diet led to a high (p<0.001) neutral detergent fiber corrected for ash and protein (NDFap) g/d intake, NDFap (BW %) and digestibility of said nutrient. There was no effect of treatments (p>0.05) on feeding time, however, rumination time and total chewing time were higher (p<0.05) for animals fed Tifton hay. The performance of the animals was similar (p>0.05). For the ultrasound measurements, Nopalea promoted an increase in the final loin eye area, compared to Tifton hay.

CONCLUSION:

The use of spineless cactus variety Miúda leads to the greater intake and digestibility of nutrients. The evaluated carmine cochineal-resistant spineless cactus genotypes are alternatives for semi-arid regions as they do not negatively affect the performance of growing lambs.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Clinical_trials Country/Region as subject: Mexico Language: En Journal: Asian-Australas J Anim Sci Year: 2020 Document type: Article Affiliation country: Brazil

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Clinical_trials Country/Region as subject: Mexico Language: En Journal: Asian-Australas J Anim Sci Year: 2020 Document type: Article Affiliation country: Brazil