Maximal portion of the young pig's sulfur amino acid requirement that can be furnished by cystine

Chung, T. K.; Baker, David H.

doi:10.2527/1992.7041182x

Cited by 44 publications

(17 citation statements)

References 23 publications

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“…Of this, 9.0 g, or 48%, was from cystine. Previous research suggests that Cys can supply nearly 50% of the total SAA requirement in rats (Shannon et al, 1972), cats (Teeter et al, 1978), dogs (Hirakawa and Baker, 1985), and pigs (Chung and Baker, 1992). Similar conclusions, based on plasma amino acid concentrations, have been reported for growing cattle (Ahmed and Bergen, 1983).…”

Section: Resultssupporting

confidence: 73%

Evaluation of feather meal as a source of sulfur amino acids for growing steers.

Klemesrud

Klopfenstein

Lewis

2000

Journal of Animal Science

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ABSTRACT:In situ and digestion studies were conducted to evaluate feather meal (FTH), blood meal (BM), and meat and bone meal (MBM) for escape protein content, amino acid composition of the escape protein, true protein digestibility, and digestibility of the individual amino acids. Following 12 h of ruminal incubation, escape protein values were 73.5, 92.4, and 60.8% of CP for FTH, BM, and MBM, respectively. Blood meal and MBM were poor sources of sulfur amino acids (SAA), whereas FTH was a good source. Most of the SAA of FTH, however, was Cys, with very little Met. True protein digestibilities were not different for the protein sources (P > .15), ranging from 86.7 to 94.0% of the CP. However, digestibilities of the individual amino acids were quite different. Two growth studies were conducted to evaluate FTH as a source of SAA for growing cattle. The first study used 120 steers (228 ± 15 kg) supplemented with urea, MBM, MBM plus 1% FTH, or MBM plus 2% FTH. Additionally, incremental amounts of rumen-protected Met were added to treat-

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Section: Resultssupporting

confidence: 73%

Evaluation of feather meal as a source of sulfur amino acids for growing steers.

Klemesrud

Klopfenstein

Lewis

2000

Journal of Animal Science

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“…On the assumption of the proper ratio of dietary Met to Cys (50:50), the balance of Dlys, Dmet, Dtrp and Dthr can be substituted by Lys (100), Met+Cys (60), Trp (21) and Thr (61). The results in this study were similar to those in the previous studies (Wang and Fuller, 1989;Chung and Baker, 1992;Zhang et al, 2000).…”

Section: Discussionsupporting

confidence: 94%

The effect of immune stress on ideal amino acid pattern for piglets

Chen

Zhang

et al. 2007

Front. Agric. China

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Two nitrogen-balance experiments were conducted to determine the optimum balance pattern among four amino acids (lysine, methionine, tryptophan and threonine) on a digestible basis in the diet of piglets (10 kg) treated with lipopolysaccharide or saline as control. The method of amino acid deletion was adopted. All pigs were of a single genetic background and geographical origin. In each group, fifteen LandrancexRongchang castrated piglets were allotted randomly to one of five groups of dietary amino acid regimens. The positive control group was supplemented with four amino acids. One of the four amino acids was reduced by about 25% in the respective treatment groups. After finishing the nitrogen-balance experiments, the slaughter technique was used to determine the ideal amino acid digestibility of the positive control by using chromium oxide (3 g/kg) as the indicator. The results showed that the ideal amino acid pattern of lysine/methionine/threonine/tryptopham on the digestible basis was

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“…The life stage would affect the sparing effect of cysteine. In young, rapidly growing animals, cyst(e)ine can furnish 50% of the requirement for TSAA (Graber, Scott & Baker ; Sowers, Stockland & Meade ; Sasse & Baker ; Teeter, Baker & Corbin ; Halpin & Baker ; Hirakawa & Baker ; Chung & Baker ; Baker ). For older animals, cyst(e)ine can furnish >50% of the TSAA requirement (Rose & Wixom ; Baker, Becker, Norton, Jensen & Harmon ; Said & Hegsted ; Fuller, McWilliam, Wang & Giles ).…”

Section: Discussionmentioning

confidence: 99%

The sparing effect of cystine on methionine at a constant TSAA level in practical diets of juvenile Nile tilapiaOreochromis niloticus

Han

Liu

et al. 2014

Aquac Res

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The feeding experiment was conducted to evaluate the replacement effect of cystine on methionine at a constant total sulphur amino acid (TSAA) level in practical diets of juvenile Nile tilapia (Oreochromis niloticus). Soybean meal, cottonseed meal and rapeseed meal were used as the main protein sources in the diets containing 16.4 MJ kg À1 gross energy and 301 g kg À1 crude protein. Crystalline DL-methionine (Met) to L-cystine (Cys) were supplemented to fulfil various ratios of Met to Cys (60:40, 50:50, 40:60 and 30:70, based on an equimolar sulphur basis; and the analysed ratios were 53:47, 49:51, 34:66 and 31:69). Each diet was fed to triplicate groups of Nile tilapia juveniles (10.1 g mean initial weight) in a recirculation system for 8 weeks. The results showed that the growth performance and nutrient accretion were not affected by dietary methionine:cystine ratios (P > 0.05). However, the survival rates of fish tended to decrease with the decreasing methionine: cystine ratios. The only dietary treatment to achieve 100% survival was the 53:47 methionine: cystine treatment. And methionine digestibility decreased linearly with the decreasing methionine: cystine ratios (P < 0.05). Thus, it was concluded that cystine could replace up to approximately 47% of TSAA requirement on an equimolar sulphur basis without hampering growth performance in the practical diets of juvenile Nile tilapia.

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Maximal portion of the young pig's sulfur amino acid requirement that can be furnished by cystine

Cited by 44 publications

References 23 publications

Evaluation of feather meal as a source of sulfur amino acids for growing steers.

Evaluation of feather meal as a source of sulfur amino acids for growing steers.

The effect of immune stress on ideal amino acid pattern for piglets

The sparing effect of cystine on methionine at a constant TSAA level in practical diets of juvenile Nile tilapiaOreochromis niloticus

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