Fatty acid profile of meat, diurnal changes in volatile fatty acids, rumen fluid parameters, and growth performance in Korean native (Hanwoo) steers fed high- and low-forage diets supplemented with chromium-methionine

Lee, Bae-Hun; Lee, Hong Gu; Kim, Byong-Wan; Ohh, Sang Jip; Sung, Kyung Il

doi:10.1590/s1806-92902016000800009

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…There was a trend towards a higher concentration of acetate in the forestomach of collared peccaries fed the high-fibre diet than the ones fed the low-fibre diet. Comparable results have been reported for cattle (Sung et al 2015;Lee et al 2016).…”

Section: Discussionsupporting

confidence: 78%

Individual differences in behaviour and gut bacteria are associated in collared peccary (Mammalia, Tayassuidae)

et al. 2021

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Aims: We tested the hypothesis that the behaviour of an individual is associated with the diversity of its gut bacteria, using the collared peccary () as a model. Pecari tajacu Methods and Results: In all, 24 adult male collared peccaries received either low-( 12) or high-fibre diet ( 12) to induce contrasting gut n = n = fermentation profiles. They were submitted to three short-term challenges, allowing us to rate the animals in a coping-style dimension named 'calmness'. At the end of the experimental period, we collected samples of peccaries' forestomach contents to characterize bacterial diversity. We found a significant positive association between individual 'calmness' z-scores and the bacterial evenness index in gut bacteria (and a similar trend with the Simpson's diversity index), suggesting a more homogeneous bacterial community of calmer individuals. We also found a positive association between fibres digestibility and gut bacterial diversity in the peccaries' forestomach, but no effect of the dietary fibre level. Conclusions: Gut bacteria evenness increases with 'calmness' z-scores, suggesting a more homogeneous bacterial community of calmer individuals, compared with the more heterogeneous of the most distressed ones. Our results also suggest associations between the digestibility of ADF with the gut bacterial diversity indices and with the relative abundance of the Actinobacteria phylum. Significance and Impact of the Study: Our data showed that the hosts' individual behavioural differences are potentially aligned with gut bacterial diversity. The behaviour-microbiota link is correlated with host feed efficiency and, ultimately, may have implications for animal health and welfare of farm animals.

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Section: Discussionsupporting

confidence: 78%

Individual differences in behaviour and gut bacteria are associated in collared peccary (Mammalia, Tayassuidae)

et al. 2021

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“…Thus, the conversion of UFA to SFA, or biohydrogenation, in the ruminants represents a major human health issue. It is noteworthy that the high forage proportion in the grass-based feeding causes higher secretion of saliva ( Figure 1A), ensuring higher rumen pH (Lee et al, 2016), and thus, strengthening the effect of lipolysis and/or biohydrogenation (Scollan and Enserb, 2003). Grass-feeding increases the content of CLA due to the biohydrogenation of the PUFA linolenic acid in the rumen that has a twofold higher concentration in the digestion of the pasture-fed steers, as compared to corn-fed steers (Smith et al, 2009).…”

Section: The Impacts Of Grass-based Versus Grain-based Feeding On Thementioning

confidence: 99%

The Effects of Grass-Based versus Grain-Based Feeding of Ruminants on the Human Hygienic Status, a Review.

Al‐Shuhaib¹,

Al-Shuhaib²

2019

jwpr

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Ruminant meat quality is one of the important factors contributing to the recent spreading of several diseases, such as obesity, cancer, and cardiovascular problems, which have increased predominately. Feeding regiment plays an important role in the determination of the composition of fatty acids and meat quality in ruminants. This review aims to highlight the main factors that lie behind the variability of ruminant meat quality and its effect on human being's health. The reduction in grass-feeding decreases saliva levels in the ruminants, which has several consequences on the rumen, including a reduction in pH level, along with a reduction in the microorganism activities and conjugated linoleic acid levels. In adipose tissues, the expression of the stearoyl-CoA desaturases gene is negatively affected by the decreased conjugated linoleic acid levels in the rumen, which leads to a decreased transformation of saturated fatty acids to monounsaturated fatty acids. Therefore, the lower monounsaturated fatty acids and the parallel increase in the proportion of saturated fatty acids in the consumed meat can be associated with some human diseases. Thus, the present study provided a molecular explanation for the superiority of grass-based feeding in ruminants raised at pasture in term of production of meat with a healthier quality for consumers than those raised on grains.

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Effects of Chromium Methionine Supplementation with Different Sources of Zinc on Growth Performance, Carcass Traits, Meat Quality, Serum Metabolites, Endocrine Parameters, and the Antioxidant Status in Growing-Finishing Pigs

Liu

Long

et al. 2017

Biol Trace Elem Res

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This experiment was conducted to evaluate the effects of chromium methionine with/without zinc sulfate or zinc amino acid complex on the growth performance, carcass traits, meat quality, serum parameters, endocrine parameters, and antioxidant status of growing-finishing pigs. A total of 180 (32.0 ± 1.7 kg body weight, BW) crossbred pigs (Duroc × Landrace × Yorkshire) were used in a completely randomized design with three dietary treatments and 10 replicates per treatment (five pens of barrows and five pens of gilts with six pigs per replicate). Three treatments were corn-soybean meal-based diets supplemented with 100 mg Zn/kg from zinc sulfate (ZnSO), 100 mg Zn/kg from ZnSO + 0.2 mg Cr/kg from chromium methionine complex (CrMet), or 50 mg Zn/kg from ZnSO + 50 mg Zn/kg from zinc amino acid complex (ZnAA) + 0.2 mg Cr/kg from CrMet, respectively. The experiment lasted 105 days, of which was divided into three stages including phase 1 (30 to 50 kg BW), phase 2 (50 to 80 kg BW), and phase 3 (80 to 110 kg BW). Results showed that supplementation with CrMet and ZnAA improved (P < 0.05) the feed conversion of the pigs in phase 2, phase 3, and the overall experiment. Hot carcass weight, dressing percentage, and a longissimus dorsi muscle area were increased (P < 0.05) in pigs fed with diets supplemented with both CrMet and ZnAA compared with pigs fed with diets containing only ZnSO (P < 0.05). There was also an increase (P < 0.01) pH in the longissimus dorsi muscle in pigs fed with diets supplemented with CrMet and ZnAA. The concentration of serum glucose in pigs fed with diets containing CrMet and ZnAA was decreased (P < 0.05) compared with that in pigs fed with the diet containing ZnSO. Supplementation with CrMet and ZnAA increased (P < 0.05) the circulating levels of insulin and decreased (P < 0.05) cortisol. There was an increase (P < 0.05) in total serum antioxidant capacity and Cu/Zn superoxide dismutase activity as well as a decrease (P < 0.05) in serum malondialdehyde concentrations in pigs fed with diets supplemented with CrMet and ZnAA compared with pigs fed with the diet supplemented only with ZnSO. In conclusion, supplementation of CrMet only or CrMet together with ZnAA improved feed conversion, carcass traits, and meat quality in the growing-finishing pigs.

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Fatty acid profile of meat, diurnal changes in volatile fatty acids, rumen fluid parameters, and growth performance in Korean native (Hanwoo) steers fed high- and low-forage diets supplemented with chromium-methionine

Cited by 4 publications

References 21 publications

Individual differences in behaviour and gut bacteria are associated in collared peccary (Mammalia, Tayassuidae)

Individual differences in behaviour and gut bacteria are associated in collared peccary (Mammalia, Tayassuidae)

The Effects of Grass-Based versus Grain-Based Feeding of Ruminants on the Human Hygienic Status, a Review.

Effects of Chromium Methionine Supplementation with Different Sources of Zinc on Growth Performance, Carcass Traits, Meat Quality, Serum Metabolites, Endocrine Parameters, and the Antioxidant Status in Growing-Finishing Pigs

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