Effect of Protein Level in the Ration on Gossypol Tolerance in Growing-Fattening Pigs

Hale, Fred; Lyman, Carl M.

doi:10.2527/jas1957.162364x

Cited by 43 publications

(19 citation statements)

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“…Thus, the tolerance of free gossypol by chicks is increased by increasing the protein level of the diet. This finding is in agreement with the results of Cabell and Earle (1956) with rats, and the results of Hale and Lyman (1957) with pigs. The pig data are quite convincing; with 15% protein in the diet, it was found that levels of free gossypol above 0.01% produced toxicity symptoms and death in some instances.…”

Section: Resultssupporting

confidence: 95%

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Effect of Protein Level of the Diet on Free Gossypol Tolerance in Chicks

et al. 1960

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Section: Resultssupporting

confidence: 95%

“…Cabell and Earle (1956) have reported a similar study using rats as experimental animals in which it has been shown that tolerance to free gossypol is determined by the amount and quality of protein in the diet. Hale and Lyman (1957) have shown that in pigs, doubling the protein level has a marked effect in determining tolerance to free gossypol.…”

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Effect of Protein Level of the Diet on Free Gossypol Tolerance in Chicks

et al. 1960

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“…27 However, this level of free gossypol is lower compared with our ®ndings (3.63 ) for growing lambs of the same breed and age fed cotton seed cake and whole cotton seed, respectively. Furthermore, Leighton et al 28 reported individual differences in responses to free gossypol intake even within the same breed.…”

Section: Discussioncontrasting

confidence: 38%

Performance of growing-fattening lambs fed diets containing different proportions of cotton seed meal

Kandylis

Nikokyris

Deligiannis

1999

J. Sci. Food Agric.

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This study was carried out to evaluate the effect of three different protein sources on nutrients digestibility, feeding value, growth performance and economic efficiency of growing calves diets. Twenty-four growing crossbred calves (Balady x Friesian) aged 9 months and weighed in average 238.29 ± 26.25 were randomly allocated into three similar groups (8 animals in each). Black cumin seed (Nigella sativa) meal (BCSM) and distiller's dried grains with solubles (DDGS) were incorporated into the experimental concentrate feed mixtures (CFM) to replace 100% of the cotton seed meal (CSM) as a source of protein (30% of total ration). The experimental feed mixtures were fed individually at 2% of calves' body weight in two parts daily at 8 a.m. and 4 p.m. Groundnut vine hay was offered at 1% of calves' body weight. The feeding trial lasted for 120 days, during this period animal's body weight were recorded biweekly and the feed intake was adjusted. At the middle of the feeding trial (60 days), four animals from each group were randomly chosen and using a grab sample method to determine the nutrients digestibility and feeding value of experimental rations. Silica (acid insoluble ash, AIA) was used as internal marker for determine the digestibility. The results indicated also that the digestion coefficients of DM,

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“…Attention has thus been directed to finding ways that will eliminate or minimise the toxic effects of gossypol associated with the use of cottonseed meal in non-ruminant diets. Varying dietary levels of protein (Hale and Lyman 1957;Smith et a1 1958), quality of dietary protein (Cabell and Earle 1956;Clawson et al 1961), dietary iron supplementation (Clawson et a1 1961;Buitrago et a1 1970;Rincon et a1 1978), and the use of cottonseed meal produced from glandless seed which contains an insignificant amount of gossypol (Noland et al 1968), have been tried with varying degrees of success.…”

Section: Introduction S a Ikurior B L A Fetugamentioning

confidence: 99%

Equi‐protein substitution of cottonseed meal for groundnut cake in diets for weaner‐grower pigs

Ikurior

Fetuga

1988

J Sci Food Agric

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Nigerian processed cottonseed meal was substituted for 0, 25, 50, 75 and 100 % portions of dietary groundnut cake on an equi-protein basis. The diets were fed to 50 Large White and Large White x Landrace crossbed pigs from 13.9 kg average weight to 70 kg liveweight in a bi-replicate single-way classification trial. Average daily gain and average daily feed consumption were 0~51,0~52,0*.53,0*55 and 0.56 kg: and 1.67, 1.77, 1.85, 1.84 and 1.82 kg for the respective diets. FeedJgain ratios ranged from 3.25 to 3.49. N o significant differences between diets were seen for either of these parameters. Neither the gross tissue nor the jointed carcass proportions were significantly affected by cottonseed meal substitutions. The mean jiesh weights of the liver and lungs decreased with increasing levels of dietary cottonseed meal but the differences were not significant. None of the pigs showed symptoms of gossypol intoxication. The data suggest that some of the Nigerian-processed cottonseed meals can be combined in various proportions with groundnut cake to supply protein, or used singly, u p to 20 %, in diets for weaner-grower pigs.

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Effect of Protein Level in the Ration on Gossypol Tolerance in Growing-Fattening Pigs

Cited by 43 publications

References 0 publications

Effect of Protein Level of the Diet on Free Gossypol Tolerance in Chicks

Effect of Protein Level of the Diet on Free Gossypol Tolerance in Chicks

Performance of growing-fattening lambs fed diets containing different proportions of cotton seed meal

Equi‐protein substitution of cottonseed meal for groundnut cake in diets for weaner‐grower pigs

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