Milk versus Soybean Protein Sources for Pigs: I. Effects on Performance and Digestibility

The aim of the study is to determine the inhibitory effect of different protein sources on protease activity of Northern pike, E. Lucius, during larval ontogeny. For this purpose, Northern pike were fed from yolk sac absorption until 21 days after hatching (DAH). At that point, larvae were sampled on 7, 14 and 21 DAH days and the activity of enzyme was analyzed in vitro. In the study, two different fish meal, chicken meal, krill meal, corn gluten, soybean protein concentrate, soybean meal and dried distillers grains with solubles were tested. Fish meal-I showed the lowest effect (7.53 %) on 7 DAH larvae. Moreover, chicken meal has the highest inhibitory effect on the proteases in the first week (68.27%). In the following period (DAH 14), although the inhibition ratio dramatically increased in all ingredients, fish meal-I has still the lowest effect on proteolytic activity (55.66%). In the same period, the highest effect was obtained from krill (82.28 %) and chicken meals (86.73 %), respectively. Then, there was no statistical difference between fish meal-I, fish meal-II and corn gluten in the 21 DAH and relatively lower than the others (p>0.05). Additionally, chicken meal again has the highest effect on juveniles with the ratio 89.27 %. As a result, the increase of proteolytic activity was notably increased in 7-14-21 DAH, however, it is concluded that feeding larvae and juveniles with live prey is still suggested to get better result for such a carnivorous species culture.

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Effect of replacing fishmeal with HP 300 on growth performance of piglets from weaning to 28 days post weaning under commercial conditions

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200010097 ◽

2005 ◽

Vol 2005 ◽

pp. 98-98

Author(s):

K. N. Muturia1 ◽

W. H. Sung ◽

O. McPherson ◽

J. R. Scaife

Keyword(s):

Growth Performance ◽

Production Systems ◽

Soybean Protein ◽

Antinutritional Factors ◽

Soya Protein ◽

Protein Sources ◽

Livestock Feed ◽

Alternative Protein ◽

Potential Alternative ◽

Soybean Protein Concentrate

The recent ban on animal protein sources as livestock feed has lead to an increased demand for alternative protein sources (Salgado et al., 2001). Soya protein has been suggested as a potential alternative to fishmeal in weaner diets in sustainable pig production systems. However, the digestion of soya products is known to be reduced by the presence of antinutritional factors such as protease inhibitors and lectins (Lallès, 1993). Several methods have been devised to refine soya thereby increasing ileal digestibility’s (Shon et al, 1994). Some of the refined products include isolate soy protein and soybean protein concentrate. The objective of this experiment was to compare the effect of replacing fishmeal (FO) with HP 300 a soya isolate product on growth performance of piglets from weaning to 28 days post weaning under commercial conditions.

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Improved soybean protein sources for early-weaned pigs: II. Effects on ileal amino acid digestibility

Journal of Animal Science ◽

10.2527/1994.723631x ◽

1994 ◽

Vol 72 (3) ◽

pp. 631-637 ◽

Cited By ~ 16

Author(s):

K. S. Sohn ◽

C. V. Maxwell ◽

L. L. Southern ◽

D. S. Buchanan

Keyword(s):

Amino Acid ◽

Soybean Protein ◽

Weaned Pigs ◽

Protein Sources

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Evaluation of content and digestibility of disulfide bonds and free thiols in unextruded and extruded diets containing fish meal and soybean protein sources

Animal Feed Science and Technology ◽

10.1016/j.anifeedsci.2005.11.008 ◽

2006 ◽

Vol 128 (3-4) ◽

pp. 320-330 ◽

Cited By ~ 21

Author(s):

M.A. Aslaksen ◽

O.H. Romarheim ◽

T. Storebakken ◽

A. Skrede

Keyword(s):

Disulfide Bonds ◽

Fish Meal ◽

Soybean Protein ◽

Protein Sources

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EFFECTS OF DIFFERENT DIETARY SOYBEAN PROTEIN SOURCES ON GROWTH, FEED UTILIZATION AND BODY COMPOSITION IN CLARIAS LAZERA

Acta Hydrobiologica Sinica ◽

10.3724/sp.j.1035.2009.61214 ◽

2010 ◽

Vol 33 (6) ◽

pp. 1214-1218

Author(s):

Li-Fang WU ◽

Li-Ying AN ◽

Gui-Xin QIN ◽

Hong-He WANG ◽

Ling SUN

Keyword(s):

Body Composition ◽

Soybean Protein ◽

Feed Utilization ◽

Protein Sources

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Alternative protein sources in nutrition and metabolism of jundiá:in nature and demucilaged linseed meal

Revista Brasileira de Saúde e Produção Animal ◽

10.1590/s1519-99402015000100025 ◽

2015 ◽

Vol 16 (1) ◽

pp. 244-252 ◽

Cited By ~ 2

Author(s):

Fernanda Rodrigues GOULART ◽

Caroline Sefrin SPERONI ◽

Naglezi de Menezes LOVATTO ◽

Bruno Biach LOUREIRO ◽

Ana Betine BENDER ◽

...

Keyword(s):

Crude Protein ◽

Metabolic Response ◽

Soybean Protein ◽

Control Diet ◽

Metabolic Effects ◽

Partial Replacement ◽

Control Group ◽

Linseed Meal ◽

Soluble Fiber ◽

Protein Sources

<p>This study evaluated the growth response and metabolic effects of partial replacement of animal protein source with <italic>in natura</italic> (LM) or demucilaged (DLM) linseed meal in the diet of jundiá <italic>(Rhamdia quelen</italic>) juveniles. After demucilagen increased crude protein content and reduced soluble fiber of linseed meal. During seven weeks, 240 jundiá juveniles were reared in water recirculation system and fed to apparent satiation with the following diets: control diet (meat and bones meal and soybean protein concentrate as the main protein sources); 17% LM (17% crude protein of linseed meal replacing meat and bones meal); 17% DLM (17% crude protein of demucilaged linseed meal replacing meat and bones meal) or 35% DLM (35% crude protein of demucilaged linseed meal replacing meat and bones meal). At the end of the experiment, weight, total and standard length of the animals did not differ between treatments, but lower values of feed conversion were found in the control group. As for metabolic response, animals fed with 35% DLM diet showed higher level of glucose and cholesterol in plasma, but triglycerides, albumin, total protein and liver biochemistry (glycogen, glucose, lactate, protein, amino acids, ammonia) were not changed between treatments. The results demonstrated that <italic>in natura</italic> and demucilaged linseed meal can be used in the diet of jundiá without compromising metabolic parameters and final weight.</p>

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ABOMASAL BLOAT AND GAS PRODUCTION IN THE DIGESTIVE TRACT OF LAMBS

Canadian Journal of Animal Science ◽

10.4141/cjas80-039 ◽

1980 ◽

Vol 60 (2) ◽

pp. 303-309 ◽

Cited By ~ 2

Author(s):

G. ARSENAULT ◽

G. J. BRISSON ◽

J. R. SEOANE ◽

J. D. JONES

Keyword(s):

Soybean Protein ◽

Milk Powder ◽

Skim Milk ◽

Skim Milk Powder ◽

Gas Production ◽

Gut Contents ◽

Protein Concentrate ◽

Protein Sources ◽

Protein Concentrates ◽

Milk Replacers

The effect of different protein sources on gas production in the rumen, abomasum and intestine was studied in 26 lambs fed milk replacers. The sources of protein were either skim milk powder, rapeseed protein concentrate, Promosoy 100, or an experimental soybean protein concentrate. Rapeseed and soybean protein concentrates supplied 53% of the total protein in the diets. Milk replacers containing 15% DM were offered ad libitum at 37 °C, twice a day for 21 days. A high incidence of abomasal bloat was observed between the 15th and the 18th day of feeding but this was not related to the protein sources or to the quantity of milk replacer ingested. However, gas production by the gut contents from non-bloating lambs was higher when they were fed the two soybean protein concentrates (212 and 190 μL/mL/10 min) than from those fed the rapeseed and skim milk powder concentrates (125 and 118 μL/mL/10 min). Ruminal and abomasal gas productions of non-bloating lambs averaged 121 and 17 μL/mL/10 min, respectively, and were similar for the four diets. When bloat occurred, abomasal gas production was 4–15 times higher than in the non-bloaters (17 vs. 195 μL/mL/10 min) which confirmed the fact that the abomasum is an important site of gas production. A "maladjustment syndrome" probably related to a malfunction of the esophageal groove was observed in three lambs. In these lambs, gas production and pH in the rumen and in the abomasum were the same.

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