{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,12]],"date-time":"2026-04-12T00:09:30Z","timestamp":1775952570596,"version":"3.50.1"},"reference-count":29,"publisher":"Asian Australasian Association of Animal Production Societies","issue":"8","license":[{"start":{"date-parts":[[2019,8,23]],"date-time":"2019-08-23T00:00:00Z","timestamp":1566518400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Science and Technology Support Foundation of Pernambuco State"},{"name":"National Council of Scientific and Technological Development"},{"name":"Agronomic Institute of Pernambuco"},{"DOI":"10.13039\/501100002322","name":"Coordination for the Improvement of Higher Education Personnel","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["ajas.info"],"crossmark-restriction":true},"short-container-title":["Asian-Australas J Anim Sci"],"published-print":{"date-parts":[[2020,8,1]]},"abstract":"<jats:p>Objective: To evaluate the effects of the carmine cochineal-resistant spineless cactus genotypes cv. Orelha de Elefante Mexicana (&lt;i&gt;Opuntia&lt;\/i&gt;) and Mi\u00fada (&lt;i&gt;Nopalea&lt;\/i&gt;) on the intake and digestibility of nutrients, ingestive behavior, performance, and ultrasound measurements of growing lambs.Methods: Thirty-six male (non-castrated) Santa In\u00eas lambs were used, with an average age of 6 months and an initial average weight of 22.0\u00b12.9 kg. They were distributed in a completely randomized design with 3 treatments (Tifton hay, &lt;i&gt;Nopalea&lt;\/i&gt; and &lt;i&gt;Opuntia&lt;\/i&gt;) 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&lt;0.05) as a function of the diets, with the &lt;i&gt;Nopalea&lt;\/i&gt; treatment (p&lt;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&lt;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&gt;0.05) on feeding time, however, rumination time and total chewing time were higher (p&lt;0.05) for animals fed Tifton hay. The performance of the animals was similar (p&gt;0.05). For the ultrasound measurements, &lt;i&gt;Nopalea&lt;\/i&gt; promoted an increase in the final loin eye area, compared to Tifton hay.Conclusion: The use of spineless cactus variety Mi\u00fada 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.<\/jats:p>","DOI":"10.5713\/ajas.19.0328","type":"journal-article","created":{"date-parts":[[2019,8,23]],"date-time":"2019-08-23T05:37:30Z","timestamp":1566538650000},"page":"1284-1291","update-policy":"https:\/\/doi.org\/10.5713\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Intake, digestibility, and performance of lambs fed spineless cactus cv. 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