Intake, digestibility, and performance of lambs fed spineless cactus cv. Orelha de Elefante Mexicana

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 Rapisarda T, "Volatile organic compounds and palatability of concentrates fed to lambs and ewes" 103 : 120-132, 2012

2 Silva SR, "Use of ultrasonographic examination for in vivo evaluation of body composition and for prediction of carcass quality of sheep" 152 : 144-157, 2017

3 Ørskov ER, "The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage" 92 : 499-503, 1979

4 Gusha J, "The effect of Opuntia ficus indica and forage legumes based diets on goat productivity in smallholder sector in Zimbabwe" 125 : 21-25, 2015

5 Ferreira MA, "Strategies for the supplementation of dairy cows in the Brazilian semi-arid" 38 : 322-329, 2009

6 Licitra G, "Standardization of procedures for nitrogen fractionation of ruminant feeds" 57 : 347-358, 1996

7 Silva RC, "Orelha de Elefante Mexicans (Opuntia stricta [Haw.] Haw.) spineless cactus as an option in crossbred dairy cattle diet" 48 : 516-525, 2018

8 Siqueira MCB, "Optimizing the use of spineless cactus in the diets of cattle: total and partial digestibility, fiber dynamics and ruminal parameters" 226 : 56-64, 2017

9 Association of Official Analytical Chemists, "Official methods of analysis" AOAC International 1990

10 National Research Council, "Nutrient requirements of small ruminants: sheep, goats, cervids, and New World camelids" National Academy Press 2007

11 Martin P, "Measuring behavior: an introductory guide" Cambridge University Press 1993

12 Cardoso DB, "Levels of inclusion of spineless cactus(Nopalea cochenillifera Salm Dyck)in the diet of lambs" 247 : 23-31, 2019

13 Costa CTF, "Intake, total and partial digestibility of nutrients, and ruminal kinetics in crossbreed steers fed with multiple supplements containing spineless cactus enriched with urea" 188 : 55-60, 2016

14 Wanderley WL, "Intake, digestibility and ruminal measures in sheep feed silage and hay in association with cactus pear" 13 : 444-456, 2012

15 Tosto MSL, "In vitro rumen fermentation kinetics of diets containing oldman saltbush hay and forage cactus, using a cattle inoculum" 67 : 149-158, 2015

16 Valente TNP, "In situ estimation of indigestible compounds contents in cattle feed and feces using bags made from different textiles" 40 : 666-675, 2011

17 Mertens, DR, "Gravimetric determination of amylase treated neutral detergent fiber in feeds with refluxing in beaker or crucibles: collaborative study" 85 : 1217-1240, 2002

18 Senger CCD, "Evaluation of autoclave procedures for fibre analysis in forage and concentrate feedstuffs" 146 : 169-174, 2008

19 Weiss WP, "Energy prediction equations for ruminant feeds" Cornell University 176-185, 1999

20 Costa RG, "Effects of replacing corn with cactus pear(Opuntia ficus indica Mill)on the performance of Santa Inês lambs" 102 : 13-17, 2012

21 Vieira EL, "Effects of hay inclusion on intake, in vivo nutrient utilization and ruminal fermentation of goats fed spineless cactus(Opuntia ficus-indica Mill)based diets" 141 : 199-208, 2008

22 Gebremariam T, "Effect of different levels of cactus(Opuntia ficus-indica)inclusion on feed intake, digestibility and body weight gain in tef(Eragrostis tef)straw-based feeding of sheep" 131 : 43-52, 2006

23 Batista ÂMV, "Chemical composition and ruminal degradability of spineless cactus grown in Northeastern Brazil" 62 : 297-301, 2009

24 Hall MB, "Calculation of non-structural carbohydrate content of feeds that contain non-protein nitrogen" University of Florida 2000

25 Moraes GSO, "Cactus [Opuntia stricta(Haw. )Haw] cladodes and corn silage : how do we maximize the performance of lactating dairy cows reared in semiarid regions" 221 : 133-138, 2019

26 Van Soest PJ, "Analysis of forages and fibrous foods" Cornell University 1985

27 Silva ETDS, "Acceptability by Girolando heifers and nutritional value of erect prickly pear stored for different periods" 52 : 761-767, 2017

28 Mehrez AZ, "A study of artificial fibre bag technique for determining the dig estibility of feeds in the rumen" 88 : 645-650, 1977

29 Sniffen CJ, "A net carbohydrate and protein system for evaluating cattle diets : II. Carbohydrate and protein availability" 70 : 3562-3577, 1992