Ruminal and morphometric parameters of the rumen and intestines of sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)

Lima, Talma Jordana; Costa, Roberto Germano; Medeiros, Geovergue Rodrigues de; Medeiros, Ariosvaldo Nunes de; Ribeiro, Neila Lidiany; Oliveira, Juliana; Guerra, Ricardo Romão; Carvalho, Francisco Fernando Ramos de

doi:10.1007/s11250-018-1697-1

Cited by 22 publications

(13 citation statements)

References 21 publications

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“…This effect can be attributed to the differences in the NDF and NFC content of the hays and the impact of these components on the production of VFAs and rumination time. Lima et al (2018) also found differences in the ruminal pH of sheep fed with decreasing levels of Tifton 85 hay in association with spineless cactus.…”

Section: Resultsmentioning

confidence: 71%

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Replacement of Tifton 85 Hay With Maniçoba Hay in the Spineless Cactus Diet of Sheep1 2

Santos

Júnior

Cardoso³

et al. 2021

Rev. Caatinga

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The objective of this study was to evaluate the effect of replacing Tifton 85 hay with maniçoba hay in diets based on spineless cactus on the nutrient intake and digestibility, ingestive behaviour and ruminal parameters of confined sheep. In order to do this, eight male sheep with ruminal cannulae were used, distributed across four levels (0, 333, 666 and 1.000 g kg-1 of dry matter) of replacement of Tifton 85 hay with maniçoba hay in a double Latin square experimental design. The animals were confined for 60 days divided into four periods of 15 days. The replacement of Tifton 85 hay with maniçoba hay did not influence the dry matter intake or digestibility. However, it influenced in a positive linear fashion the intake of non-fibrous carbohydrates and in a linear negative fashion the digestibility of insoluble fibre in neutral detergent and crude protein. The ruminal ammonia-nitrogen and the crude protein ruminal content decreased linearly with the replacement of Tifton 85 hay with maniçoba hay. There was no effect of hay replacement on the production of volatile fatty acids or the microbial biofilm. The total replacement Tifton 85 by maniçoba hay in spineless cactus diets for sheep did not influence total digestible nutrient intake, volatile fatty acid production or biofilm, but did affect crude protein digestibility, ammonia-nitrogen and crude protein content in the rumen. Therefore, maniçoba hay can replace 300 g kg-1 grass hay in spineless cactus diets for sheep without compromising intake and ruminal parameters.

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Section: Resultsmentioning

confidence: 71%

“…Conserved or fresh grasses have been tested in association with spineless cactus by several authors (LIMA et al, 2018;CARDOSO et al, 2019). In summary, it is agreed that the presence of fibre from forage is essential to maintain a healthy ruminal environment.…”

Section: Introductionmentioning

confidence: 99%

Replacement of Tifton 85 Hay With Maniçoba Hay in the Spineless Cactus Diet of Sheep1 2

Santos

Júnior

Cardoso³

et al. 2021

Rev. Caatinga

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“…Several studies have shown that papillary morphometry can vary with the type of diet [24][25][26] especially in growing animals. It is therefore imperative that studies specify the type of feed used and that such feeding regimens be maintained in experimental groups.…”

Section: Discussionmentioning

confidence: 99%

Morphometric and stereological methods for quantifying the coarse structural parameters of the ruminal tissues in sheep

Makanya

Mills-Thompson

Nguhiu-Mwangi

et al. 2020

International Journal of Veterinary Science and Medicine

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In ruminants, the rumen is the largest and most significant fore-stomach. Stereological analysis of important structural parameters that may be used to assess the functional capacity of the rumen is lacking. In the current investigation, five rams were used to demonstrate the methods for quantifying salient structural parameters related to rumen function. The sheep were euthanized with 20% sodium pentobarbital intravenously, the rumen was dissected out and divided into the various sacs for gross examination, and fixation by total immersion in 10% formalin. Macroscopic ruminal surface area was estimated using the point-associated area method. Volumes of the ruminal tissues were estimated by the volume displacement method, while volume densities of the components of the ruminal wall were estimated by point counting methods. Tissue blocks for histology were obtained by systematic random sampling and processed to obtain vertical sections for surface area and volume estimations. Papillary densities and numbers were estimated from horizontal sections. The volume of ruminal tissue was 536.54 ± 80.52 cm 3 , the macroscopic surface area was 1091 ± 115.75 cm 2 with a papillary packing density of 84.64 ± 10.99 cm −2. Average absolute surface area was 4726.74 ± 628.56 cm 2. The total number of ruminal papillae per rumen was 92,884.91 ± 6216.46. The methods documented here provide the possibility of doing a detailed stereological analysis of ruminal tissue in different experimental or even pathological conditions.

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“…Five photomicrographies per animal were scanned with a 5X objective on an Olympus Cellsens Dimension BX-60 microscope and Zeiss AxioCam camera coupled with a Motic Image Plus 2.0 digital image capture program for each organ analyzed. In each photomicrograph, two measurements were performed for each variable and organ, with a "n" of 60 per treatment (six animals × five photomicrographies × two measurements) for each variable (Lima et al, 2019).…”

Section: Methodsmentioning

confidence: 99%

Ruminal and morphometric parameters of rumen and intestine in lambs fed guava (Psidium guajava L.) agroindustrial waste

Nobre¹,

Costa²,

Guerra³

et al. 2020

Revista Brasileira De Zootecnia

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The objective of this study was to evaluate the effect of guava agroindustrial waste (GAW) on ruminal parameters (pH, N-NH 3 , and microbial protein), volatile fatty acid (VFA), and morphometry of the rumen and intestine of sheep. A total of forty Santa Inês sheep (120 days old and 21.3±2.62 kg) were used. The animals were fed diets with 0, 7.5, 15, 22.5, and 30% inclusion of GAW. The pH, ammonia nitrogen, microbial protein, and VFA were evaluated in the ruminal fluid, alongside the morphometric characteristics of the rumen and intestine. The inclusion of GAW linearly increased fasting and postprandial pH, N-NH 3 only showed a quadratic effect for fasting animal, whereas MP presented a quadratic effect for pre-and post-prandial animals. There was a quadratic effect for papilla width, with a maximum value of 393.33 μm at the level of 34.43% GAW in the diet. The papilla absorption area showed a linear effect, in which increasing levels of GAW in the diet had a smaller area of papillae absorption. The inclusion of GAW in the diet of Santa Inês sheep favored pH neutrality, reduced N-NH 3 and ruminal MP concentrations, decreased the thickness of the rumen muscular layer, and increased the intestinal mucosa, favoring greater absorption of nutrients.

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Ruminal and morphometric parameters of the rumen and intestines of sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)

Cited by 22 publications

References 21 publications

Replacement of Tifton 85 Hay With Maniçoba Hay in the Spineless Cactus Diet of Sheep1 2

Replacement of Tifton 85 Hay With Maniçoba Hay in the Spineless Cactus Diet of Sheep1 2

Morphometric and stereological methods for quantifying the coarse structural parameters of the ruminal tissues in sheep

Ruminal and morphometric parameters of rumen and intestine in lambs fed guava (Psidium guajava L.) agroindustrial waste

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