Body Weight Changes, Pancreas Size and Enzyme Activity, and Proteolytic Enzyme Activity and Protein Digestion in Intestinal Contents from Calves Fed Soybean and Milk Protein Diets

Gorrill, A. D. L.; Thomas, J. W.

doi:10.1093/jn/92.2.215

Cited by 75 publications

(20 citation statements)

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“…Results of this study confirmed earlier reports (Gorrill and Thomas, 1967b;Gorrill et al, 1967 (Roy, 1969 (Gonill and Nicholson, 1969) and intestinal digesta when milk replacer was fed may also affect apparent nitrogen digestion.…”

Section: Sbti and Diarrheasupporting

confidence: 91%

EFFECT OF SOYBEAN TRYPSIN INHIBITOR, DIARRHEA AND DIET ON FLOW RATE, pH, PROTEOLYTIC ENZYMES, AND NITROGEN FRACTIONS IN CALF INTESTINAL DIGESTA

Gorrill¹,

Nicholson²

1971

Can. J. Anim. Sci.

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Section: Sbti and Diarrheasupporting

confidence: 91%

EFFECT OF SOYBEAN TRYPSIN INHIBITOR, DIARRHEA AND DIET ON FLOW RATE, pH, PROTEOLYTIC ENZYMES, AND NITROGEN FRACTIONS IN CALF INTESTINAL DIGESTA

Gorrill¹,

Nicholson²

1971

Can. J. Anim. Sci.

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“…But the lower incorporation rate of pea products (16.5 vs. 70% of crude protein) was probably the main reason why the F diet had only slight effects on liveweight. Ob served depressive effects of many soya bean products were in agreement with studies pub lished by Gorrill and Thomas [36] and Guilloteau et al [11].…”

Section: Liveweight Gain and Pancreatic Developmentsupporting

confidence: 88%

“…In contrast, the lower apparent digest ibility of the organic matter in the HSF diet (0.83) as compared to the R (0.91) and CTL diet (0.95) [35] was partly responsible for the decreased liveweight gain in this group. In F and HSF diets, the antigenic activity was still high [35,36] and oligosides had not been extracted. But the lower incorporation rate of pea products (16.5 vs. 70% of crude protein) was probably the main reason why the F diet had only slight effects on liveweight.…”

Section: Liveweight Gain and Pancreatic Developmentmentioning

confidence: 99%

Response of the Calf Pancreas to Differently Processed Soya Bean and Pea Diets

Dréan¹,

Huërou-Luron²,

Philouze-Romé³

et al. 1995

Ann Nutr Metab

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The purpose of this study was to determine the effect of replacing skim-milk powder by differently treated soya bean or pea products on growth, pancreas size and pancreatic enzyme activities in calves. Three separate experiments have been performed. In experiments 1 and 2, 28 and 21 male Holstein calves were divided into 4 or 3 groups, respectively, and fed either dairy products or milk substitutes in which protein was mainly provided by soya bean products differing in their protein concentration due to the technological processing applied. In experiment 3, 45 male Holstein calves were divided into 3 groups and were fed either dairy products, or raw or flaked pea flour as a protein source. After an experimental period of 99 ± 4 days in experiments 1 and 2, and of 88 days in experiment 3, animal growth rate was significantly lower with raw pea flour (16%) and with the soya bean diet, which was highly concentrated in carbohydrates and allergenic proteins (13-27%). Pancreas weight decreased significantly (16-18%) with pea diets and tended to be lower (NS) with the water extracted, concentrated and heated flour (soya bean). Amylase-specific activity increased significantly (43%) with pea diets but showed opposite tendencies with the most refined soya bean products. Proteolytic enzyme activities were slightly influenced by dietary protein source, but this was not as obvious as in the literature reviewed. Specific messenger RNAs corresponding to amylase, trypsin and chymotrypsin seemed to increase (NS) with the soya bean diets, particularly with the less elaborated one. However, further investigations are required before any conclusions may be drawn concerning regulation levels of pancreatic adaptation to dietary protein. According to this study and the literature, results concerning pancreatic response to diets were different suggesting that the origin of soya bean, pea seeds and technological treatments applied to them were of great importance. Also, the level of incorporation into milk substitute and the presence of more or less antinutritional factors could influence pancreatic enzyme variations by complex mechanisms.

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“…Giving a liquid supplement to ruminant calves had a marked effect on enzyme : substrate intake ratios only in the cases of trypsin and chymotrypsin where they were 1.4 and 1.5-fold lower, respectively, in group SL than in group S. This supports the hypothesis of a possible depressive effect of the residual antitryptic factors of soyabean oil meal in the liquid supplement (Gorrill and Thomas, 1967).…”

Section: Introductionsupporting

confidence: 65%

Enzyme potentialities of the abomasum and pancreas of the calf. II. — Effects of weaning and feeding a liquid supplement to ruminant animals

Guilloteau¹,

Corring²,

Toullec³

et al. 1985

Reprod. Nutr. Dévelop.

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Weaning caused a decrease in the chymosin content and an increase in the pepsin content of the abomasum. The amount of chymosin per kg of carcass was on the average 2.8-fold lower and that of pepsin 1.9-fold higher in groups S and SL than in group L. The amount of pepsin tended to be higher in group S than in group SL, but only the difference observed (36 %) for the total amount was significant.In group S, the pancreata showed more chymotrypsin, trypsin and amylase activities but less lipase activity than in group L ; the observed differences in these activities per kg of carcass were 32, 49, 70 and 24 %, respectively. The activities of group SL were lower than those of group L for trypsin, chymotrypsin and lipase but higher for amylase (17, 12, 44 and 18 %, respectively). Group SL exhibited lower activities than group S (55, 67, 16 and 44 %, respectively, for trypsin, chymotrypsin, lipase and amylase).Weaning appeared to induce large changes in abomasal and pancreatic enzyme potentialities which exhibited patterns similar to the variations in the amounts of substrate intake. In our experimental conditions, giving a liquid supplement to ruminant calves had a depressive effect on the activities of the enzymes (except chymosin), in the pancreas and the abomasum.Introduction.

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Body Weight Changes, Pancreas Size and Enzyme Activity, and Proteolytic Enzyme Activity and Protein Digestion in Intestinal Contents from Calves Fed Soybean and Milk Protein Diets

Cited by 75 publications

References 0 publications

EFFECT OF SOYBEAN TRYPSIN INHIBITOR, DIARRHEA AND DIET ON FLOW RATE, pH, PROTEOLYTIC ENZYMES, AND NITROGEN FRACTIONS IN CALF INTESTINAL DIGESTA

EFFECT OF SOYBEAN TRYPSIN INHIBITOR, DIARRHEA AND DIET ON FLOW RATE, pH, PROTEOLYTIC ENZYMES, AND NITROGEN FRACTIONS IN CALF INTESTINAL DIGESTA

Response of the Calf Pancreas to Differently Processed Soya Bean and Pea Diets

Enzyme potentialities of the abomasum and pancreas of the calf. II. — Effects of weaning and feeding a liquid supplement to ruminant animals

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