Does the level of forage neutral detergent fiber affect the ruminal fermentation, digestibility and feeding behavior of goats fed cactus pear?

Pinho, Ricardo Martins Araújo; Santos, Edson Mauro; Oliveira, Juliana; Carvalho, Gleidson Giordano Pinto de; Silva, Thiago Carvalho da; Macêdo, Alberto Jefferson da Silva; Corrêa, Yohana Rosaly; Zanine, Anderson de Moura

doi:10.1111/asj.13043

Cited by 34 publications

(30 citation statements)

References 22 publications

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“…Thus, the reduced digestibility of DM and NDF is related to the high content of NFC present in cactus pear, which after being rapidly fermented in the rumen, promote a marked drop in rumen pH, an increase in the rate of passage, and consequently a reduction in cellulolytic activity. All these elements influence the digestibility of the fibre directly (Pinho et al ., 2018).…”

Section: Discussionmentioning

confidence: 99%

Fermentation profile and nutritional quality of silages composed of cactus pear and maniçoba for goat feeding

et al. 2020

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This study aimed to evaluate the fermentation profile and nutritional quality of silages composed of cactus pear and maniçoba. Two experiments were performed: the first evaluated the fermentation characteristics, chemical composition and determined the organic acids in cactus pear silages with the inclusion of five levels of maniçoba (0, 25, 50, 75 and 100%) in six opening times (1, 7, 15, 30, 60 and 90 days). The second experiment determined the nutrient intake, digestibility, water balance and nitrogen balance in Canindé goats fed diets based on cactus pear silage with the inclusion of four levels of maniçoba (25, 50, 75 and 100%), with six animals per treatment. The increase in maniçoba levels in cactus pear silage provided a linear increase in the butyric acid, dry matter (DM), ether extract, crude protein, neutral detergent fibre, acid detergent fibre, lignin, cellulose, hemicellulose, water intake via drinking fountain and metabolic water, and reduced the pH, lactic acid, acetic acid, mineral matter, total carbohydrates, non-fibrous carbohydrates, water intake via food, total water intake, water excreted in the faeces, water excreted in the urine, total water excretion and water balance. Quadratic behaviour was observed for N-NH3, DM recovery and propionic acid, with an increase in maniçoba levels in cactus pear silages. Regarding the different opening times, there was a significant effect in pH, N-NH3, acetic acid, lactic acid and butyric acid (P < 0.050). The inclusion of maniçoba in cactus pear silage improved the fermentation characteristics and nutritional quality to be used in diets for goats.

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Section: Discussionmentioning

confidence: 99%

Fermentation profile and nutritional quality of silages composed of cactus pear and maniçoba for goat feeding

et al. 2020

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“…Additionally, the reduction in the ruminal content might have occurred because of the increase in NFC in the diets containing cactus (from 285 to 453 g/kg DM). The rapid degradation of NFC in the rumen may determine the increase in digestion and the rate of passage, promoting the lowest ruminal filling by the rapid emptying of the rumen, either by digestion or passage to other compartments in the gastrointestinal tract (Pinho et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Arid and semi-arid regions present long periods of drought, which have become increasingly extended due to climate change (Ben Salem et al, 1996;Siqueira et al, 2017;Pinho et al, 2018). Drought conditions result in producers using alternative feed for livestock production.…”

Section: Introductionmentioning

confidence: 99%

Inclusion of Opuntia stricta (Haw.) in sheep diets affects nutrition and the physicochemical characteristics of the rumen content

Araujo¹,

Batista²,

Carvalho³

et al. 2020

Revista Brasileira De Zootecnia

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Ruminants Full-length research article Inclusion of Opuntia stricta (Haw.) in sheep diets affects nutrition and the physicochemical characteristics of the rumen content ABSTRACT-The aim of this study was to evaluate the effects of the inclusion of the cactus Opuntia stricta (Haw.) in sheep diets on the feed intake, digestibility, fermentation, and physicochemical characteristics of the ruminal digesta. Five sheep cannulated in the rumen (61.5±9.5 kg body weight) were assigned in a Latin square design (5×5), with five diets and five experimental periods of 21 days each. The first 14 days were the adaptation period, and data were collected over the following seven days, making the total duration of the experiment 105 days. The diets included a control diet and four diets containing cactus at 121, 245, 371, and 500 g/kg of dry matter (DM). The diets had a forage:concentrate ratio of 65:35. The inclusion of cactus increased the DM intake and non-fiber carbohydrates, but reduced the neutral detergent fiber intake. It also increased the apparent digestibility of the DM, reduced the digesta density 4 h after feeding, and increased the production of ruminal fluid foam. The inclusion of cactus quadratically affected the DM rumen turnover, with the lowest value observed in the 336.5 g/kg cactus diet. The DM ruminal disappearance rate increased with the inclusion of cactus to the diets and quadratically affected the ruminal pH, with the highest value found in the 150 g/kg cactus diet. The concentrations of short-chain fatty acids (SCFA) increased, but the acetate:propionate ratio decreased with the inclusion of cactus at 500 g/kg DM. Taken together, our findings indicate that the evaluated spineless cactus can be added to sheep diets up to the level of 500 g/kg DM. The inclusion of O. stricta (Haw.) improves feed intake, DM digestibility, and SCFA and modifies the physicochemical characteristics of the ruminal digesta.

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“…Spineless cactus has been consolidated as a food rich in high fermentation carbohydrates for ruminant diets in arid and semi-arid areas of the planet, because in addition to being an energy source, it is an important water fountain for livestock production (Albuquerque et Despite establishing the appropriate ber level for diets with spineless cactus (Vieira et al, 2008;Pinho et al, 2018), there is no recommendation of which N source to use in complete diets with predominance of spineless cactus. However, for the optimal growth of the ruminal microorganisms is crucial the association the energetic ingredients with an N source.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Sources in Spineless Cactus-Based Diets for Sheep in Finishing

Ferraz

Pessoa

Milanês

et al. 2021

Preprint

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This study evaluated the effect of different sources of nitrogen [soybean meal (SM); cottonseed meal (CM); cottonseed + urea (CU); and urea (U)] associated with spineless cactus on intake, digestibility, performance, carcass characteristics and meat quality of confined lambs. Forty male Santa Inês sheep, uncastrated, with initial body weight of 23.00 ± 1.66 kg were distributed in random blocks design and slaughtered after 58 days of confinement. Dry matter (DM) intake (1.16 ± 0.19 kg/day) did not differ (P > 0.05) between nitrogen sources, but the intake of crude protein (CP) and non-fibrous carbohydrates (NFC) was lower (P < 0.05) for sheep consuming CU. Sheep fed with diets containing U had lower digestibility of DM, CP and NFC (P < 0.05). The average daily gain (0.15 ± 0.04 kg/day) and the slaughter body weight (32.07 ± 2.86 kg) did not differ between nitrogen sources, but the cold carcass and loin weight was lower (P < 0.05) for sheep fed with U. The water retention capacity and meat protein content were greater (P < 0.05) for animals fed with SM. Soybean meal or cottonseed meal associated with spineless cactus-based diets for sheep meat production are recommended because it allows greater DM digestibilityand improves carcass characteristics and physicochemical composition of the meat.

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Does the level of forage neutral detergent fiber affect the ruminal fermentation, digestibility and feeding behavior of goats fed cactus pear?

Cited by 34 publications

References 22 publications

Fermentation profile and nutritional quality of silages composed of cactus pear and maniçoba for goat feeding

Fermentation profile and nutritional quality of silages composed of cactus pear and maniçoba for goat feeding

Inclusion of Opuntia stricta (Haw.) in sheep diets affects nutrition and the physicochemical characteristics of the rumen content

Nitrogen Sources in Spineless Cactus-Based Diets for Sheep in Finishing

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