Dwarf and tall elephant grass silages: intake, nutrient digestibility, nitrogen balance, ruminal fermentation, and ingestive behavior in sheep

Soares, Luciana Felizardo Pereira; Guim, Adriana; Mello, Alexandre Carneiro Leão de; Ferreira, Marcelo de Andrade; Carvalho, Francisco Fernando Ramos de; Silva, Janaína de Lima; Vasco, Ana Caroline Cerqueira de Melo; Silva, Tomás Guilherme Pereira da; Neves, Maria Luciana Menezes Wanderley

doi:10.1007/s11250-023-03502-w

Cited by 3 publications

(1 citation statement)

References 46 publications

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“…The growth performance of animals is directly influenced by the intake and apparent digestibility of nutrients ( 37 ). According to the present study, sheep belonging to the AC group exhibited reduced feed consumption, consequently leading to insufficient intake of essential nutrients.…”

Section: Discussionmentioning

confidence: 99%

Acid-base properties of non-protein nitrogen affect nutrients intake, rumen fermentation and antioxidant capacity of fattening Hu sheep

Zheng,

Duan,

Cao

et al. 2024

Front. Vet. Sci.

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This study conducted a comparison of the effects of non-protein nitrogen with different acid-base properties on feed intake, rumen fermentation, nutrient digestion and antioxidant capacity in fattening Hu sheep. Sixteen fattening male sheep (31.43 ± 2.41 kg) with permanent rumen cannulas were randomly assigned to two dietary treatments: 1% urea and 1.78% ammonium chloride (NH4Cl, AC). A 42 days experimental period was conducted, with 14 days for adaptation and 28 days for treatment. Daily feed intake was recorded and various samples including feed, feces, rumen fluid, and blood were collected at different time points during the final week. The results indicated that the urea group had significantly higher dry matter intake, average daily gain, and gain efficiency in comparison to the AC group (p < 0.01). There was no difference in rumen pH and concentration of ammonia nitrogen between different groups (p > 0.05), but the rumen pH of urea group was higher than that of the AC group at 1 and 3 h after feeding (p < 0.05). The urea group exhibited higher concentrations of total volatile fatty acids (VFA) and individual VFAs compared to the AC group at all-time points (p < 0.01). Compared to the urea group, the intake of all nutrients decreased in the AC group (p < 0.01), but the digestibility of dry matter and organic matter increased significantly (p < 0.01), and the digestibility of CP had an increasing trend (p = 0.06) in the AC group. Additionally, the urea group had lower levels of serum glucagon-like peptide-1, peptide YY, Cl, total protein and globulin than the AC group (p < 0.05). The overall levels of HCO3−, superoxide dismutase, glutathione peroxidase, catalase, albumin/globulin, blood urea nitrogen and total cholesterol in the urea group increased significantly compared to the AC group (p < 0.05). It was concluded that adding urea to the high-concentrate diet resulted in increased rumen pH and improved rumen fermentation and growth performance in fattening sheep compared to NH4Cl addition. Furthermore, urea addition improved sheep’s antioxidant capacity and maintained their acid-base balance more effectively as compared to NH4Cl.

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Section: Discussionmentioning

confidence: 99%

Acid-base properties of non-protein nitrogen affect nutrients intake, rumen fermentation and antioxidant capacity of fattening Hu sheep

Zheng,

Duan,

Cao

et al. 2024

Front. Vet. Sci.

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Improvements in fermentation and nutritive quality of elephant grass [Cenchrus purpureus (Schumach.) Morrone] silages: a review

Sánchez-Guerra,

Gonzalez-Ronquillo,

Anderson

et al. 2024

Trop Anim Health Prod

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Enhancing the feed efficiency of crop residues in ruminants: a comprehensive review

Kamal,

Aldhalmi,

Abd El-Hack

et al. 2024

Annals of Animal Science

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Worldwide, the production of agricultural residues exceeds five billion metric tons per year. Regardless of their many applications and substantial potential to increase crop and animal productivity, many crop residues, particularly in Asian, African, and Arabian nations, are burned. This detrimental practice limits the recycling of soil nutrients while increasing air pollution and wellness risks. Enhancing feed efficiency while simultaneously lowering production costs and increasing animal protein is a key objective of nutritional supplements in livestock feeding. Antibiotics have been utilized in farm animals at sub-therapeutic levels to increase feed use effectiveness and digestion, as well as animal welfare and performance. However, the present ban on antibiotics as nutritional supplements has boosted the search for substitutes, with natural feed additives considered cutting-edge options. On the other hand, feed that has undergone biological treatment improves animal productivity, feed intake, and digestibility. Nevertheless, the absence of agents and expertise and substrate weight decrease may result in a 40% dry matter loss limits application. In this review, we look at the importance of detrimental residue administration and the advancement and adoption of technologies to handle surplus residue.

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Dwarf and tall elephant grass silages: intake, nutrient digestibility, nitrogen balance, ruminal fermentation, and ingestive behavior in sheep

Cited by 3 publications

References 46 publications

Acid-base properties of non-protein nitrogen affect nutrients intake, rumen fermentation and antioxidant capacity of fattening Hu sheep

Acid-base properties of non-protein nitrogen affect nutrients intake, rumen fermentation and antioxidant capacity of fattening Hu sheep

Improvements in fermentation and nutritive quality of elephant grass [Cenchrus purpureus (Schumach.) Morrone] silages: a review

Enhancing the feed efficiency of crop residues in ruminants: a comprehensive review

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