Ruminal parameters of bovines fed diets based on sugar cane with doses of calcium hydroxide

Dias, Alexandre Menezes; Ítavo, Luís Carlos Vinhas; Damasceno, Júlio César; Santos, Geraldo Tadeu dos; Nogueira, É.; Ítavo, Camila Celeste Brandão Ferreira

doi:10.1590/s1516-35982012000400019

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…The pH, NH 3 -N concentration, and VFA are the leading indicators of the functioning of ruminal fermentation [36]. The pH in the ruminal fluid can vary between 5.5 and 7.5 depending on the nature of the diet time after ingestion, feeding frequencies and times, and the time from feeding to ruminal fluid collection [37,38]. In the present study, pH values between 6.14 and 6.26 were observed, close to the lower range of 6.2 to 7.0, ensuring normal ruminal fermentation [39].…”

Section: Discussionmentioning

confidence: 99%

Effect of Oregano (Lippia graveolens) Essential Oil as a Phytogenic Feed Additive on Productive Performance, Ruminal Fermentation, and Antioxidant Activity in Lamb Meat

et al. 2022

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The objective of this study was to evaluate the inclusion of oregano essential oil (OEO) as a phytogenic feed additive in the diet of lambs on the productive performance, ruminal pH, ammoniacal nitrogen production, volatile fatty acids, nitrogen balance, carcass yield, backfat thickness, loin eye (Longissimus dorsi) area, shelf life, and antioxidant activity of the meat. Thirty-nine Suffolk × Hampshire lambs (19 ± 3.7 kg live weight) were used in a completely randomized design with three treatments (n = 13) consisting of 0, 0.02, and 0.04% OEO in the diet. The inclusion of OEO in the diet did not affect (p > 0.05) the productive performance due to the treatments; similarly, no differences (p > 0.05) were observed in the ruminal variables and nitrogen balance. Backfat thickness and loin eye area had similar results (p > 0.05), and the antioxidant activity in meat was improved (p < 0.05) with the inclusion of OEO. Shelf life and crude protein content increased (p < 0.05) with the inclusion of OEO in the diet and with the passing of storage days. Dry matter was affected (p < 0.05) by the storage time, with a decrease observed on day 24. pH, ether extract, and ash were not affected (p > 0.05). It is concluded that the productive performance, ruminal variables, nitrogen balance, loin eye area, backfat thickness, and carcass yield were not affected by the inclusion of OEO. However, crude protein remained stable and antioxidant activity improved, increasing the shelf life of lamb meat.

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Section: Discussionmentioning

confidence: 99%

Effect of Oregano (Lippia graveolens) Essential Oil as a Phytogenic Feed Additive on Productive Performance, Ruminal Fermentation, and Antioxidant Activity in Lamb Meat

et al. 2022

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“…Calcium hydroxide is commonly used to treat poorquality forages (Klopfenstein, 1978) but also serves as a rumen alkalizer to increase rumen pH, especially when cows are fed rapidly fermentable feeds (Dias et al, 2012). Low ruminal pH can affect feed intake, microbial metabolism, and nutrient degradation (Dijkstra et al, 2012).…”

Section: Milk Production and Compositionmentioning

confidence: 99%

Inclusion of calcium hydroxide-treated corn stover as a partial forage replacement in diets for lactating dairy cows

Casperson

Wertz-Lutz

Dunn

et al. 2018

Journal of Dairy Science

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Chemical treatment may improve the nutritional value of corn crop residues, commonly referred to as corn stover, and the potential use of this feed resource for ruminants, including lactating dairy cows. The objective of this study was to determine the effect of prestorage chopping, hydration, and treatment of corn stover with Ca(OH) on the feeding value for milk production, milk composition, and dry matter intake (DMI). Multiparous mid-lactation Holstein cows (n = 30) were stratified by parity and milk production and randomly assigned to 1 of 3 diets. Corn stover was chopped, hydrated, and treated with 6% Ca(OH) (as-fed basis) and stored in horizontal silo bags. Cows received a control (CON) total mixed ration (TMR) or a TMR in which a mixture of treated corn stover and distillers grains replaced either alfalfa haylage (AHsub) or alfalfa haylage and an additional portion of corn silage (AH+CSsub). Treated corn stover was fed in a TMR at 0, 15, and 30% of the diet DM for the CON, AHsub, and AH+CSsub diets, respectively. Cows were individually fed in tiestalls for 10 wk. Milk production was not altered by treatment. Compared with the CON diet, DMI was reduced when the AHsub diet was fed and tended to be reduced when cows were fed the AH+CSsub diet (25.9, 22.7, and 23.1 ± 0.88 kg/d for CON, AHsub, and AH+CSsub diets, respectively). Energy-corrected milk production per unit of DMI (kg/kg) tended to increase with treated corn stover feeding. Milk composition, energy-corrected milk production, and energy-corrected milk per unit of DMI (kg/kg) were not different among treatments for the 10-wk feeding period. Cows fed the AHsub and AH+CSsub diets had consistent DMI over the 10-wk treatment period, whereas DMI for cows fed the CON diet increased slightly over time. Milk production was not affected by the duration of feeding. These data indicate that corn stover processing, prestorage hydration, and treatment with calcium hydroxide can serve as an alternative to traditional haycrop and corn silage in diets fed to mid-lactation dairy cows.

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Ruminal parameters of bovines fed diets based on sugar cane with doses of calcium hydroxide

Abstract: -The objective of this study was to evaluate the administration of different doses of calcium hydroxide mixed with sugar cane fed to cows by the pH, ammonia nitrogen and volatile fatty acids concentration in ruminal content.

Cited by 2 publications

References 15 publications

Effect of Oregano (Lippia graveolens) Essential Oil as a Phytogenic Feed Additive on Productive Performance, Ruminal Fermentation, and Antioxidant Activity in Lamb Meat

Effect of Oregano (Lippia graveolens) Essential Oil as a Phytogenic Feed Additive on Productive Performance, Ruminal Fermentation, and Antioxidant Activity in Lamb Meat

Inclusion of calcium hydroxide-treated corn stover as a partial forage replacement in diets for lactating dairy cows

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