Ruminal and histological characteristics and nitrogen balance in lamb fed diets containing cactus as the only roughage

Silva, Kleitiane Balduino da; Oliveira, Juliana; Santos, Edson Mauro; Cartaxo, Felipe Queiroga; Guerra, Ricardo Romão; Souza, Aelson Fernandes do Nascimento; Muniz, A. C. S.; Cruz, Gabriel

doi:10.1007/s11250-019-02051-5

Cited by 11 publications

(7 citation statements)

References 27 publications

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“…The changes in the rumen environment caused by different diets modify the morphology of rumen tissues, fermentation patterns, and microbial metabolism, which in turn affects the deposition of the compounds in muscles. For instance, feeding sheep with cactus as roughage significantly increases the abundance of Butyrivibrio and Mogibacterium in the animal's rumen ( 14 ). Abundant Butyrivibrio reduces the deposition of polyunsaturated fatty acids (PUFAs) in mutton ( 15 ).…”

Section: Introductionmentioning

confidence: 99%

Metabolomics approach reveals high energy diet improves the quality and enhances the flavor of black Tibetan sheep meat by altering the composition of rumen microbiota

et al. 2022

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This study aims to determine the impact of dietary energy levels on rumen microbial composition and its relationship to the quality of Black Tibetan sheep meat by applying metabolomics and Pearson's correlation analyses. For this purpose, UHPLC-QTOF-MS was used to identify the metabolome, whereas 16S rDNA sequencing was used to detect the rumen microbiota. Eventually, we observed that the high energy diet group (HS) improved the carcass quality of Black Tibetan sheep and fat deposition in the longissimus lumborum (LL) compared to the medium energy diet group (MS). However, HS considerably increased the texture, water holding capacity (WHC), and volatile flavor of the LL when compared to that of MS and the low energy diet group (LS). Metabolomics and correlation analyses revealed that dietary energy levels mainly affected the metabolism of carbohydrates and lipids of the LL, which consequently influenced the content of volatile flavor compounds (VOCs) and fats. Furthermore, HS increased the abundance of Quinella, Ruminococcus 2, (Eubacterium) coprostanoligenes, and Succinivibrionaceae UCG-001, all of which participate in the carbohydrate metabolism in rumen and thus influence the metabolite levels (stachyose, isomaltose, etc.) in the LL. Overall, a high-energy diet is desirable for the production of Black Tibetan sheep mutton because it improves the mouthfeel and flavor of meat by altering the composition of rumen microbiota, which influences the metabolism in the LL.

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Section: Introductionmentioning

confidence: 99%

Metabolomics approach reveals high energy diet improves the quality and enhances the flavor of black Tibetan sheep meat by altering the composition of rumen microbiota

et al. 2022

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“…Prolific Hu sheep are considered a very good maternal resource in the current intensive and factory farming (Lv et al., 2020; Wang, et al., 2020). Diet is a critical determinant factor that influences the composition and function of the rumen microbiome, molar concentration, and proportion of volatile fatty acids (VFAs) and gastrointestinal morphology in ruminants (Carberry et al, 2012; Lee et al., 2012; Wang et al, 2012; da Silva et al., 2020). With the transformation of ruminant farming patterns, the diets are witnessing a predictable change.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary energy levels on rumen fermentation, microbiota, and gastrointestinal morphology in growing ewes

Wang

et al. 2020

Food Science & Nutrition

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“…The rumen epithelium, which covers the papillae, serves nutrient absorption structures andas a nutrient absorption structures and an epithelial barrier to prevent the invasion of pathogenic microorganisms, toxins, and antinutritional factors in food (Baaske et al, 2020). Therefore, the increase in the thickness of these variables does not bring extra bene ts to the animal, but it is a re ection of some substance that causes mechanical abrasion (such as very abrasive foods) or toxicity, such as antinutritional factors found in some foods such as forage cactus (Lima et al, 2018;Silva et al, 2019b;Silva et al, 2019c), castor bean (Dantas Junior, 2020) or cassava (Barboza et al, 2019), or as in this case, the alcoholic fraction of RPE.…”

Section: Discussionmentioning

confidence: 99%

“…To measure the liver glycogen score, 6 photomicrographs with a 40x objective were used for each animal to measure the liver glycogen score, totaling a sample number of 42 (7 animals x 6 photomicrographs) per treatment. The photomicrographs were analyzed by assigning a score for the degree of glycogen deposition (magenta color in the PAS histochemical staining) to each one (Silva et al, 2019b). For the histopathological evaluation of the livers, the same digitized images were used, in which the examiner looked for brous septa, necrosis, or steatosis.…”

Section: Histological and Histomorphometric Analysismentioning

confidence: 99%

Red propolis extract in the diet of confined sheep: morphometric alterations of the digestive system

Garcia

Guerra

Oliveira

et al. 2022

Preprint

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This study aimed to evaluate the effect of increasing levels of red propolis extract (RPE) in the diet of confined sheep on performance and histomorphometric parameters of rumen and intestine and histopathological parameters of liver and kidney. Thirty-five male sheep (17.08 ± 2.36 kg) were used, distributed in a completely randomized design, with five treatments (0, 7, 14, 21, and 28 mL day− 1 RPE) and seven replications, submitted to one 68-day trial period. At the end of the experimental period, the animals were slaughtered, and, rumen, intestine, liver, and kidney samples were collected (histomorphometry and histopathology). The dry matter intake (DMI), total weight gain (TWG), epithelial thickness ruminal (ETR), a keratinized portion of the epithelium ruminal (KER), a non-keratinized portion of the epithelium ruminal (NKP), papilla height (PH), papilla width (PW), mucosal thickness (MT) and submucosal thickness (ST) exhibited quadratic curve behavior (P < 0.05) with the inclusion of RPE. In addition, the highest level of 28 mL day− 1 RPE resulted in a 20.24% increase in TWG compared to the control group. Therefore, the 28 mL day-1 RPE level is indicated as a natural additive more significant to provide greater absorptive areas of the rumen and intestine, and an increase in total weight gain.

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Ruminal and histological characteristics and nitrogen balance in lamb fed diets containing cactus as the only roughage

Cited by 11 publications

References 27 publications

Metabolomics approach reveals high energy diet improves the quality and enhances the flavor of black Tibetan sheep meat by altering the composition of rumen microbiota

Metabolomics approach reveals high energy diet improves the quality and enhances the flavor of black Tibetan sheep meat by altering the composition of rumen microbiota

Effects of dietary energy levels on rumen fermentation, microbiota, and gastrointestinal morphology in growing ewes

Red propolis extract in the diet of confined sheep: morphometric alterations of the digestive system

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