scholarly journals The nutritional value of raw, autoclaved and dehulled peas (Pisum sativum L.) in chicken diets as affected by enzyme supplementation

1993 ◽  
Vol 73 (3) ◽  
pp. 605-614 ◽  
Author(s):  
A. Brenes ◽  
B. A. Rotter ◽  
R. R. Marquardt ◽  
W. Guenter

The effects of added crude enzyme preparations, autoclaving and dehulling on the nutritional value of diets containing a low-tannin (Trapper) and high-tannin (Maple) cultivar of peas (Pisum sativum L.) for chicks were determined in four experiments. The addition of crude enzymes from different sources and at different concentrations to a diet containing 75% of the low-tannin peas did not improve chick performance (exp. 1). Similarly, no improvement in performance was observed when a combination of crude enzymes was added to the diet containing whole or dehulled low-tannin peas, (exp. 2). Autoclaved treatment and enzyme addition to the diet containing the high-tannin Maple peas improved (P < 0.05) the feed-to-gain ratio but not the weight gain (exp. 3). Autoclaving or dehulling improved the apparent metabolizable energy (21 vs. 30%) and apparent protein digestibility (11 vs. 15%) of the high-tannin peas, respectively, in contrast to the low-tannin peas (experiment 4). Dehulling improved the feed-to-gain ratio of chickens fed both cultivars of peas. In conclusion, the results indicate that addition of crude enzymes to diets containing raw or dehulled low-tannin peas do not improve the chick performance but improve the feed efficiency of chicks when fed with the high-tannin peas. Autoclaving and dehulling improved the apparent metabolizable energy and protein digestibility values of high-tannin Maple peas while dehulling improved the feed-to-gain ratio of both cultivars. Key words: Crude enzyme, peas, chick, metabolizable energy, dehulling, autoclaving

1999 ◽  
Vol 69 (3) ◽  
pp. 591-599 ◽  
Author(s):  
F. Grosjean ◽  
B. Barrier-Guillot ◽  
D. Bastianelli ◽  
F. Rudeaux ◽  
A. Bourdillon ◽  
...  

AbstractThe nutritional value of different categories of peas was measured in mash or pelleted diets using adult cockerels. Twenty-five round and white-flowered peas (feed peas), 12 round and coloured-flowered peas and five wrinkled and white-flowered peas were used in mash diets. From the same batches, 11 feed peas, five coloured peas and four wrinkled peas were tested in pelleted diets.Mean apparent metabolizable energy (AME) values were 12·02, 11·35 and 10·50 MJ/kg dry matter (DM) for feed peas, coloured peas and wrinkled peas respectively in mash diets and 13·18, 12·72 and 11·63 MJ/kg DM for the same categories in pelleted diets.Mean starch digestibility was 0·905, 0·887 and 0·802 for feed peas, coloured peas and wrinkled peas respectively in mash diets and 0·985, 0·984 and 0·840 for these categories in pelleted diets.Mean protein digestibility was 0·788, 0·643 and 0·798 for feed peas, coloured peas and wrinkled peas respectively in mash diets and corresponding values for peas in pelleted diets were 0·855, 0·743 and 0·853.Pelleting thus had a positive effect on the nutritional value of peas and this improvement was all the more important because the AME and protein digestibility of the pea in mash diets was low.The nutritional value of feed peas for cockerels was not strongly correlated with chemical composition or to digestibility data obtained in the pig.


1969 ◽  
Vol 49 (2) ◽  
pp. 205-214 ◽  
Author(s):  
T. S. Neudoerffer ◽  
R. E. Smith

The enzymic degradation of wheat bran using cellulolytic and proteolytic enzymes from a number of sources was investigated. Two enzyme combinations were found to be effective for the chemical alteration of wheat bran. Crude enzyme preparation from the fungus T. viride in combination with a commercial proteinase brought about a 32% reducing sugar accumulation, a 36% loss of holocellulose, a 40% loss of α-cellulose and a, 54% solubilization of protein. Crude enzyme preparation from the fungus M. verrucaria in combination with a commercial proteinase gave rise to a 27% reducing sugar accumulation, a 39% loss of holocellulose, a 22% loss of α-cellulose and 50% solubilization of protein. The nutritional value for the rat of wheat bran modified by either enzyme combination was significantly improved. Apparent protein digestibility was improved significantly. Preliminary experiments indicate that the modification of wheat bran increases the metabolizable energy.


2020 ◽  
Vol 8 (1) ◽  
pp. 52-58
Author(s):  
Nicolas Gomgom Tua Marbun

This study aims to determine the efficient use of protein and energy of Black Soldier fly larvae at different age levels on chicken. This research was conducted at Jl. RK, Desa Namo Bitang, Kecamatan Pancur Batu Kabupaten Deli Serdang, North Sumatra. Animal Husbandary Study Program, Faculty of Agriculture, Universitas Sumatra Utara, Medan. The design of this study was a completely randomized design (CRD) with 4 treatments and 5 replications. The treatment consisted of P0, P1, P2, and P3 (larvae 14, 21, 28, and 35 days old). Observed variables were protein digestibility, nitrogen retention and apparent metabolizable energy.The results showed that the treatment had a significant effect (P<0,01) on protein digestibility, nitrogen retention and apparent metabolizable energy. Based on research result it can be concluded that maggot of Black soldier fly more efficient at the age between 24-25 days.


2011 ◽  
Vol 51 (2) ◽  
pp. 150 ◽  
Author(s):  
C. L. Nalle ◽  
V. Ravindran ◽  
G. Ravindran

Two experiments were conducted to evaluate the nutritional value of four cultivars (Santana, Miami, Courier and Rex) of peas (Pisum sativum L.) for broilers. In Experiment 1, the apparent metabolisable energy (AME) and the apparent ileal amino acid digestibility of these four cultivars were determined. The cultivar effects were found to be not significant (P > 0.05) for the AME and apparent ileal digestibility of amino acids, with the exception of arginine, which was lower (P < 0.05) in Courier than other cultivars. In Experiment 2, using the energy and digestible amino acid values determined in Experiment 1, diets containing 200 g/kg of the four cultivars of peas were formulated and the effects of feeding these diets on the performance and digestive tract development of broiler starters was investigated. Weight gain, feed intake and feed per gain of broiler starters fed diets containing peas were similar (P > 0.05) to those fed the maize-soybean meal diet. In general, the digestive tract development was unaffected (P > 0.05) by the inclusion of peas. The excreta scores of birds fed diets based on Santana, Miami and Rex were similar (P > 0.05) and that of the Courier-based diet was lower (P < 0.05) than those fed the maize-soy control diet. These results suggest that peas are good sources of metabolisable energy and digestible amino acids, and that they can be included at 200 g/kg level as a partial replacement for soybean meal in broiler starter diets without adverse effects on performance.


Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1894
Author(s):  
Kun Xie ◽  
Xi He ◽  
De-Xing Hou ◽  
Bingkun Zhang ◽  
Zehe Song

Rice, broken rice (BR), and full-fat rice bran (FFRB) from six different origins were analyzed for their chemical composition, nitrogen-corrected apparent metabolized energy (AMEn), and standardized amino acid digestibility (SIAAD) in 14-day-old and 28-day-old Arbor Acres broilers. Results showed broilers fed with rice and BR had a similar AMEn regardless of the rice and BR having different CP, EE, NDF, ADF, and ash content. FFRB containing significantly different CP, EE, NDF, ADFm and starch presented variable AMEn (p < 0.05), suggesting that starch content in rice and its byproducts contributed most to the AMEn of broilers. The regression equation of AMEn = 14.312 − (0.198 × NDF) and AMEn = 6.491 + (0.103 × Starch) were feasible to integrally predict AMEn of broilers fed to rice and its byproducts. Moreover, 28-day-old broilers had higher SIAAD than 14-day-old ones. The SIAAD of rice were higher than BR and FFRB except for Met, Cys, Thr, and Tyr in 14-day-old broilers (p < 0.05), and the SIAAD of His, Asp, and Ser in BR were higher than FFRB (p < 0.05). In 28-day-old broilers, the SIAAD of Leu, Trp, Asp, Gly, and Pro of rice were still higher than BR and FFRB (p < 0.05), but BR and FFRB had no significant differences (p > 0.05). The regression equations to estimate the SIAAD of Thr, Lys, and Met were: Met = 81.46 + (0.578 × CP), Thr = 0.863 + (6.311 × CP), and Trp = 102.883 − (1.77 × CP), indicating that CP content in rice and its byproducts was likely a major factor for prediction of SIAAD.


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