Intake, digestibility and metabolism in sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)

Maciel, Laura; Carvalho, Francisco Fernando Ramos de; Batista, Ângela Maria Vieira; Guim, Adriana; Maciel, Michel do Vale; Cardoso, Daniel Barros; Júnior, Dorgival Morais de Lima

doi:10.1007/s11250-019-01868-4

Cited by 15 publications

(9 citation statements)

References 22 publications

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“…Another hypothesis to reduce the intake of DM, after the maximum point is the cactus cladodes water content, which promotes a rumen filling effect. Previous research has also noted quadratic behavior on DM intake with increased levels of cactus cladodes in the diets of cattle (Conceição et al, 2016;Siqueira et al, 2017), sheep (Cardoso et al, 2019;Maciel et al, 2019), and goats (Pinho et al, 2018).…”

Section: Resultsmentioning

confidence: 90%

Which non-fibrous carbohydrates: neutral detergent fiber ratio optimizes the use of cactus cladodes in diets of growing heifers?

Melo¹,

Silva²,

Magalhães³

et al. 2021

Semina: Ciênc. Agrár.

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This study aimed to evaluate the effect of different non-fibrous carbohydrate (NFC):neutral detergent fiber (NDF) ratios (0.70:1, 0.90:1, 1.14:1, 1.42:1, and 1.85:1) in diets containing cactus cladodes on intake, digestibility, ruminal parameters, ingestive behavior, and microbial protein of growing heifers. Five rumen-cannulated heifers (194 ± 70 kg of body weight) were distributed in a Latin square design (5 x 5). There was a quadratic effect on the intake of dry matter (DM) (Kg day-1 and %BW) and crude protein (CP) with the increase in non-fibrous carbohydrate (NFC): neutral detergent fiber (NDF) ratio, with maximum values of 7.07 kg day-1, 2.86%, and 0.949 kg day-1, estimated for 1.37:1, 1.39:1, and 1.27:1 ratios. When the intake of NDF decreased, in turn, the intakes of NFC and TDN increased. The NDF digestibility decreased with increasing NFC levels in diets. The other nutrients were not influenced. The ruminal pH showed the lowest values at 4 hours after feeding, mainly for animals fed the 1.85:1 ratio. There was a quadratic effect for rumination time with maximum values estimated for an NFC:NDF ratio of 0.88:1. The time spent idle increased linearly, while total chewing time and feeding efficiency of NDF decreased. The urinary volume increased linearly. However, microbial protein synthesis and the efficiency of the synthesis were not influenced. The number of protozoa increased by 64.5% with the elevation of the NFC:NDF ratio. We recommend a NFC:NDF ratio of 1.37:1 in diets containing cactus cladodes, to improve the use of nutrients, without negatively affecting ruminal parameters.

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Section: Resultsmentioning

confidence: 90%

Which non-fibrous carbohydrates: neutral detergent fiber ratio optimizes the use of cactus cladodes in diets of growing heifers?

Melo¹,

Silva²,

Magalhães³

et al. 2021

Semina: Ciênc. Agrár.

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“…Plasma glucose is the main precursor of fatty acids in ruminant intramuscular adipocytes (Laliotis et al, 2010). Its level has been reported to increase with the inclusion of spineless cactus in the diet (Maciel et al, 2019;Cardoso et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

“…It has a proximate composition (g/kg, mean (SD)) of 108.7 (9.4) DM, 50.9 (6.2) crude protein, 244.7 (13.6) neutral detergent fibre, and 545.7 (10.7) nonfibrous carbohydrates (Lins et al, 2016;Oliveira et al, 2018;Silva et al, 2019). Owing to high ruminal degradability, estimated to be 701.1 ± 8.4 g/kg DM (Batista et al, 2009), spineless cactus is usually fed with other roughage to optimise the intake and digestibility of nutrients by ruminants (Siqueira et al, 2017;Maciel et al, 2019). However, it is necessary to establish the maximum level of inclusion of spineless cactus that improves the carcass characteristics and meat quality of sheep in confinement.…”

Section: Introductionmentioning

confidence: 99%

Carcass characteristics and meat quality of lambs fed high levels of spineless cactus in the diet

Bezerra¹,

Véras²,

Batista³

et al. 2021

SA J. An. Sci.

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The objective was to evaluate the effect of increasing the dietary inclusion of spineless cactus (Nopalea cochenillifera Salm Dyck) on the carcass characteristics and meat quality of confined lambs. Thirty-two male Santa Inês lambs with an average age of 140 days and an initial body weight of 20.4 ± 2.60 kg were used in this study. The lambs were housed in individual stalls for 70 days and individually fed a ration with spineless cactus included at 0, 241, 519, or 753 g/kg of dry matter (DM). The lambs were slaughtered, and characteristics of the carcass and meat were recorded and analysed. Inclusion of spineless cactus had a quadratic effect on the bodyweight at slaughter and on the empty bodyweight of the lambs. The inclusion of 500 g/kg of spineless cactus provided the highest predicted cold carcass weight (16.03 kg). There was a quadratic effect of the inclusion of spineless cactus on the weight of meat cuts and leg composition of lambs. The inclusion of spineless cactus did not influence pH, tenderness, and water-retention capacity of the meat. However, the intramuscular fat content increased 1 mg for every 10 g/kg inclusion of spineless cactus in the diet. Quadratic effects were observed of the inclusion of spineless cactus on the weights of the liver, heart, rumen, blood, skin and internal fat of the lambs. Up to 500 g/kg of spineless cactus could be included in the diet of confined lambs.

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“…The spineless cactus (Napolea cochenillifera Salm Dyck) is an important forage for livestock in Brazilian semi-arid regions. It has adaptive agronomic characteristics, such as being tolerant to hydric stress (SILVA et al, 2018), and being suitable as forage in diets for sheep (CARDOSO et al, 2019;MACIEL et al, 2019b). Spineless cactus, regardless of genus (Opuntia or Nopalea), has high levels of non-fibrous carbohydrates and water, constituting an important food resource for arid and semi-arid zones of the world (BATISTA et al, 2003;COSTA et al, 2009).…”

Section: ____________________________________________________________mentioning

confidence: 99%

Metabolic profile and renal function of lambs fed with maniçoba hay replacement by spineless cactus

Gouveia¹,

Soares²,

Moura³

et al. 2019

Rev Agr Acad

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Intake, digestibility and metabolism in sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)

Cited by 15 publications

References 22 publications

Which non-fibrous carbohydrates: neutral detergent fiber ratio optimizes the use of cactus cladodes in diets of growing heifers?

Which non-fibrous carbohydrates: neutral detergent fiber ratio optimizes the use of cactus cladodes in diets of growing heifers?

Carcass characteristics and meat quality of lambs fed high levels of spineless cactus in the diet

Metabolic profile and renal function of lambs fed with maniçoba hay replacement by spineless cactus

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