UTILIZATION OF FULL-FAT RAPESEED AND RAPESEED MEALS IN RATIONS FOR BROILER CHICKS

1975 ◽  
Vol 55 (3) ◽  
pp. 461-469 ◽  
Author(s):  
J. M. OLOMU ◽  
A. R. ROBBLEE ◽  
D. R. CLANDININ ◽  
R. T. HARDIN
Keyword(s):  
Weight Gain ◽  
Rapeseed Oil ◽  
Dry Matter ◽  
Nutrient Retention ◽  
Rapeseed Meal ◽  
Broiler Chicks ◽  
Amino Acid Supplementation ◽  
Feed Conversion ◽  
Protein Retention ◽  
Low Erucic Acid

Two experiments were conducted to assess the use of full-fat rapeseed (RS) or rapeseed meal (RSM) in rations for broiler chicks. The first experiment included comparisons between Span (a low erucic acid variety) and Bronowski (a low glucosinolate variety) RS and the effects of addition of two types of fat (crude Span rapeseed oil and stabilized tallow) in the rations used. Parameters studied included rate of gain, feed conversion, size of thyroids, livers and hearts and composition of carcasses, hearts and livers. The second experiment studied the effects of protein level and amino acid supplementation on nutrient retention in broiler chicks fed Span RS. Inclusion of 20% raw Span or Bronowski RS in broiler rations resulted in depressed weight gain and feed conversion, increased thyroid size and production of leaner carcasses as compared to those obtained when a control ration or rations containing autoclaved RS were fed. Raw Bronowski RS resulted in superior weight gain and feed conversion as compared to raw Span RS. Use of 12% Span RSM with either RSO or stabilized tallow or 12% Bronowski RSM with RSO gave performance similar to that of chicks fed the control ration. When stabilized tallow was used with Bronowski RSM, performance was improved over that obtained with the control ration. The use of full-fat RS, RSM or RSO did not cause fat accumulation in the hearts and livers of chicks. The percentage of dry matter, fat and energy retained by chicks fed the control ration was significantly higher than in chicks fed raw or autoclaved RS. Protein retention was not affected by inclusion of RS in the rations.

Effect of processing methods on the nutritional value of Mucuna cochinchinensis to broiler chicks

2007 ◽  
Vol 47 (2) ◽  
pp. 125 ◽  
Author(s):  
S. N. Ukachukwu ◽  
F. C. Obioha
Keyword(s):  
Weight Gain ◽  
Protein Efficiency Ratio ◽  
Nutrient Retention ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Efficiency Ratio ◽  
Crude Fibre

The performance and nutrient retention of broilers fed raw (RMD), toasted (TMD), boiled (BMD), soaked and boiled (SMD) or no (NMD) Mucuna cochinchinensis seed diets at both starter and finisher phases were assessed using 400 broiler chicks. The birds were fed a common proprietary feed (Top Feed) until 2 weeks of age, followed by a treatment diet for 3 weeks of the starter period, then 5 weeks on the finisher diet. At the starter phase, RMD significantly (P < 0.05) decreased liveweight, daily weight gain, protein efficiency ratio and encouraged poorer feed conversion ratio and higher cost per kilogram weight gain when compared with other diets. TMD decreased (P < 0.05) only the protein efficiency ratio. RMD also decreased (P < 0.05) retention of dry matter (DM), crude protein (CP), crude fibre (CF) and energy while TMD decreased (P < 0.05) retention of only DM, CP, and energy. At the finisher phase, RMD also significantly (P < 0.05) decreased daily weight gain, protein efficiency ratio and feed conversion ratio and increased cost per kg weight gain, while TMD decreased (P < 0.05) only the protein efficiency ratio and feed conversion ratio. RMD again decreased (P < 0.05) retention of DM, CP, CF and energy, while TMD, as in the starter phase, again decreased (P < 0.05) retention of DM, CP and energy. On a cumulative basis, RMD adversely affected (P < 0.05) all the parameters under investigation. TMD affected (P < 0.05) only the feed conversion ratio, protein efficiency ratio and cost per kg weight gain. Boiling Mucuna cochinchinensis, therefore, encourages significantly better performance of chicks, higher nutrient retention and lower cost per kg weight gain than toasting, whereas soaking before boiling does not add any advantage to boiling alone.

A COMPARISON OF RAPESEED MEAL AND SOYBEAN MEAL AS A SOURCE OF PROTEIN AND PROTECTED LIPID AS A SOURCE OF SUPPLEMENTAL ENERGY FOR CALF STARTER DIETS

1980 ◽  
Vol 60 (2) ◽  
pp. 359-366 ◽  
Author(s):  
L. J. FISHER
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Soybean Meal ◽  
Dry Matter ◽  
Body Weight Gain ◽  
Rapeseed Meal ◽  
Feed Conversion ◽  
Dry Matter Digestibility ◽  
Kidney Fat ◽  
Formed Part

Thirty male Holstein calves were utilized in a 2 × 3 factorial experiment designed to compare rapeseed meal (cv. Candle) and soybean meal as protein supplements and 0, 10, and 20% levels of protected lipid as a form of supplemental energy for starter rations. The six rations were fed free choice from 21 to 70 days of the experiment with whole milk fed at 10% of body weight from 0 to 42 days. Starter intake was similar for the two protein sources but significantly less for the ration containing 10% protected lipid compared to either the 0 or 20% levels. Body weight gain was faster for calves fed the starter containing 20% protected lipid compared to those fed the 10% level. Efficiency of feed conversion was greater for calves receiving protected lipid. There were no differences between protein source in dry matter intake, body weight gain, efficiency of feed conversion, apparent dry matter digestibility or dressing percent. Plasma glucose and percent hematocrit were significantly lower and percent kidney fat significantly higher for calves fed starter rations containing soybean meal. The relative availability of copper was reduced significantly when soybean meal or 20% protected lipid formed part of the starter diet. It was concluded from this study that Candle rapeseed meal was a suitable source of supplemental protein for calf starter diets and that the inclusion of protected lipid improved feed conversion of calves from 43 to 70 days of age.

scholarly journals Performance, digestiblity and carcass yield of broiler chickens fed diets containing two types of fishmeal

2021 ◽  
Vol 32 (2) ◽  
pp. 204-214
Author(s):  
O.M.O. Idowu ◽  
O. E. Daisy ◽  
A. O. Eruvbetine
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Dry Matter ◽  
Linear Increase ◽  
Feed Conversion ◽  
Significant Treatment ◽  
Short Supply ◽  
Weight Percentage ◽  
Protein Retention ◽  
Dietary Treatments

A feeding trial was conducted with one hundred and eighty day-old Anak broiler randomly allocated four dietary treatments containing imported fishmeal (IFM) and ground smoked fishmeal (GSFM) to investigate the performance response of broiler chickens fed diets containing 2.5 and 5.0% IFM und GSFM respectively. Bodyweight and bodyweight gain increased linearly with increased levels of inclusion of fishmeal in the diets (P<0.05). Better performance was noticed at higher levels of inclusion of both IFM and GSFM. Final bodyweight and gain were significantly (P<0.05) influenced by fishmeal type and level of inclusion. Feed conversion ratio (FCR) of the birds on IFM diets at 2.5 and 5.0% were not significantly different (P>0.05) from that of GSFM during the starter and finisher phases. Daily protein intake and cost of feed per kilogram weight gain showed no significant treatment effect. The substitution of IFM by GSFM however reduced feed per kilogram weight gain and increasing the level of fishmeal in broiler diets from 2.510 5.0% resulted in reduction of cost of seed per kilogram weight gain. There was a linear increase (P<0.05) in the percentage protein retention and the digestibility percentages of dry matter and fat as the level of fishmeal increased from 2.510 5.0%. The inclusion of IFM both ui 2.5 and 5.0% levels resulted in a relatively superior (P<0.05) dry matter digestibility and crude protein retention when compared with values obtained for GSFM. The dressed weight percentage increased slightly (P>0.05) with increased level of inclusion of fishmeal while the abdominal fai and other carcass proportions were not significantly influenced by the dietary treatments. Birds that were fed GSFM had a significantly higher (P<0.05) gizzard and kidney percentages. It was therefore concluded that the use of higher levels of local fishmeal (above 5%) in practical diets of broiler chickens could be advantageous where and when improved fishmeal is in short supply and very expensive. 

Dietary levels of metabolizable energy and crude protein for "Cornish" chicks

1969 ◽  
Vol 82 (1-2) ◽  
pp. 51-61
Author(s):  
Franklin A. Salas ◽  
Paul F. Randel ◽  
Ernesto O. Riquelme ◽  
José R. Latorre
Keyword(s):  
Weight Gain ◽  
Vegetable Oil ◽  
Crude Protein ◽  
Dry Matter ◽  
Metabolizable Energy ◽  
Protein G ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Objective Criterion ◽  
Mean Values

One hundred eighty hybrid broiler chicks of the Peterson x Hubbard line, in 18 groups of 10, were used to compare six diets (three replications). The diets consisted mainly of maize, soybean and fish meals, and vegetable oil, and varied in levels of metabolizable energy (kcal/kg) and protein (g/kg) as follows; (A) 3,000/230, (B) 3,200/230, (C) 3,400/245, (D) 3,400/260, (E) 3,600/ 260, and (F) 3,800/260. Mean values per chick at wk 4 for treatments A to F, respectively, were as follows: weight gain, 994; 1,053; 1,105; 1,055; 1,063; and 943 g; and feed conversion, 1.81, 1.71, 1.57, 1.55, 1.48, and 1.48 g/g. Weight (g) and yield (%) of carcass at wk 4, respectively, were 693 (66.7), 740 (67.4), 774 (67.3), 725 (66.0), 740 (67.0), and 653 (66.0). Sample evaluation of these carcasses and of locally produced and imported carcasses showed percentage of breast to be highest in the imports (30.8) and in treatment C (30.6). In the objective criterion of conformation [weight (g)/pectoral músete area (cm2)], carcasses of C (19.8) and E (18.7) were highest. Percentages of water and of protein in the dry matter (DM) were highest in imported carcasses (70 and 52, respectively). In percentage fat in the DM, those of A and C and local commercial carcasses were highest (42), and those of F (32) and the imported (35) were lowest. Diets C and E, which promoted rapid, efficient growth and desirable carcasses, are recommended for use with "Cornish" chicks.

SUBSTITUTION OF RAPESEED MEAL FOR SOYBEAN MEAL AS A SOURCE OF PROTEIN FOR LACTATING COWS

1976 ◽  
Vol 56 (2) ◽  
pp. 233-242 ◽  
Author(s):  
L. J. FISHER ◽  
DOROTHY S. WALSH
Keyword(s):  
Milk Yield ◽  
Dry Matter ◽  
Rapeseed Meal ◽  
Milk Composition ◽  
Hormone Metabolism ◽  
Thyroid Hormone Metabolism ◽  
Lactating Cows ◽  
Lower Blood ◽  
Concentrate Mixture ◽  
Low Erucic Acid

Sixteen lactating Holstein cows were randomly assigned to treatment sequences in a 4 × 4 changeover experiment. Experimental periods were 28 days in length separated by 7 days for changeover. Cows were fed corn silage free choice and gradually increasing amounts of one of four dairy concentrates containing 0, 11, 22, or 34% rapeseed meal (RSM) of a Canadian, experimental, low glucosinolate–low erucic acid variety. Concentrate intake (kg dry matter/day), milk yield (kg/day) and body weight change (kg/28 days) were 8.45a, 8.71a, 8.37a and 7.17b; 24.40a, 24.03ab, 22.92bc and 21.96c and 7.6b, 22.4b, 13.0ab, and 3.0b for 0, 11, 22 and 34% RSM mixtures, respectively. There was no influence of treatment on milk composition. Ration dry matter (DM) and nitrogen digestibilities declined (P < 0.05) as the RSM in the concentrate mixture increased. The amount of nitrogen excreted in the urine was greatest for cows fed 0% RSM and least for cows fed 34% RSM. Cows fed concentrate mixtures containing 34% RSM had a lower blood thyroxine level than others (P < 0.05), but RSM-containing concentrates had no apparent effect on the conversion of thyroxine to triiodothyronine. Results of the trial indicated that this experimental variety of RSM had no detrimental effect on concentrate intake, DM digestibility, milk composition or thyroid hormone metabolism when included at levels up to 22% in the concentrate mixture. However, milk yield and apparent digestibility of ration nitrogen were decreased (P < 0.05) by the 22% RSM mixture. It was not certain from the current findings whether the depression in digestibility was due largely to the high oil content of the meal or due to the higher fiber content of the RSM-supplemented rations.

The utilization of maize silage for intensive beef production: I. The effect of level and source of supplementary nitrogen on the utilization of maize silage by cattle of different ages

1975 ◽  
Vol 84 (2) ◽  
pp. 353-364 ◽  
Author(s):  
C. Thomas ◽  
J. M. Wilkinson ◽  
J. C. Tayler
Keyword(s):  
Weight Gain ◽  
Crude Protein ◽  
Dry Matter ◽  
Live Weight ◽  
High Rate ◽  
Feed Conversion ◽  
Maize Silage ◽  
Live Weight Gain ◽  
Main Effect ◽  
Urea Addition

SUMMARYFifty-four British Friesian castrated male calves, initially 3, 6 or 9 months of age (107, 180 and 249 kg initial live weight, respectively), were individually fed for 83 days on maize silage (27·9% dry matter (D.M.), 10·7% crude protein in D.M.), offeredad libitum. Silage was offered either alone or supplemented with cobs of dried lucerne (21% of total D.M. intake). Three levels of urea (0, 1 and 2% of silage D.M.) were added to the silage before feeding.Total D.M. intakes averaged 23·0, 23·4 and 21·6 g/kg live weight (LW) for the 3-, 6- and 9-month-old animals, respectively. Addition of urea increased silage intake by 11% in the 6-month-old group but there was little effect in the 3- and 9-month-old groups. Lucerne supplementation reduced silage D.M. intake from 22·0 to 18·4 g/kg LW (P< 0·001) and increased total D.M. intake by 1·4 g/kg LW (P< 0·001).Live-weight gain (LWG) of the cattle fed on silage alone increased (P< 0·001) with increasing age of animal. The main effect of urea was to elevate (P< 0·001) LWG from an average of 0·79 (no urea) to 0·94 kg/head/day (2% urea). However, it appeared that most of this effect was confined to the 6-month-old group. The effect of lucerne on LWG decreased with increasing age of animal (P< 0·001). Inclusion of lucerne in the diet significantly reduced the response to urea (P< 0·05).Feed conversion efficiency (LWG/100 Mcal DE intake) decreased (P< 0·01) with increasing age of animal but increased with urea addition from an average of 4·7 (no urea) to 5·3 kg LWG/100 Meal DE intake (2% urea). The response to lucerne supplementation in terms of efficiency was greatest in the 3-month-old group and thereafter declined markedly with increasing age of animal.The results of this experiment indicated that cattle older than 6 months of age (180 kg LW) could achieve a rate of growth of 1·0 kg/head/day on maize silage supplemented solely with urea, but that younger animals required supplementary lucerne to support a high rate of live-weight gain.

scholarly journals BIOECONOMICS OF FEEDING RAW OR HEAT TREATED SOYABEANS TO BROILERS4

2021 ◽  
Vol 22 (2) ◽  
pp. 137-140
Author(s):  
S. N. Ukachukuwu ◽  
F. O. I. Anugwa
Keyword(s):  
Weight Gain ◽  
Daily Intake ◽  
Daily Weight Gain ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Gross Margin ◽  
Nutritional Factors ◽  
Heat Treated ◽  
Soyabean Meal ◽  
Food Consumed

The bioeconomics of feeding full-fat raw (RSB), toasted (TSB), cooked (CSB) soyabeans or defatted soyabean meal (SMB) to broiler chicks at starter and finisher phases was investigated using 240 Anak strain broiler chicks. At starter phase RSB diet significantly (P < 0.05) depressed average daily intake (ADI) only when compared with SMB diet. It also significantly (P <0.01) depressed daily weight gain (DWG): with values of RSB (20.1 gin), TSB (241 gm), CSB (24.0gm) and SMB (253 gm) as well as feed conversion ratio of RSB (3.03) TSB (2.63), CSB (2.49) and SMB (2.58). At finisher phase, the effects were not significant (P> .0.05) suggesting adaptation of the chick to RSB with time. SMB diet was almost twice as costly to produce as the other three diets. Cost of feed per unit of weight gained was highest (P < 0.05) with SMB diet followed by RSB diet while CSB and TSB diets were similar at starter phase. At finisher phase SMB diet still had significantly (P < 0.01) higher cost per kg weight gain than the RSB, TSB and CSB diets whose values were statistically the same. On gross margin, the use of SMB diet significantly (P < 0.01) resulted in the lowest values, followed by the RS B diet while the values of CSB and TSB diets remained similar and the highest at both phases. This underlines the importance of using cost of food consumed to obtain a unit of product as a basis for recommending feeds to farmers (alongside other nutritional factors).

scholarly journals Inclusion of different levels of inulin on productive parameters and intestinal morphology in fattening guinea pigs (Cavia porcellus)

2021 ◽  
Vol 51 (11) ◽  
Author(s):  
Fernando Carcelén Cáceres ◽  
Felipe San Martín Howard ◽  
Miguel Ara Gómez ◽  
Sandra Bezada Quintana ◽  
Ana Asencios Méndez ◽  
...  
Keyword(s):  
Weight Gain ◽  
Guinea Pigs ◽  
Dry Matter ◽  
Intestinal Morphology ◽  
Dry Matter Intake ◽  
Human Consumption ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Linear Effect ◽  
Zinc Bacitracin

ABSTRACT: This study evaluated the effect of the three inulin levels (0.1%, 0.2%, 0.4%) supplemented as a substitute for an antibiotic growth promoter (AGP, zinc bacitracin) and control in guinea pigs raised for human consumption. Fifty 14-day-old male guinea pigs were used. Productive parameters (weight gain, total dry matter intake, and feed conversion ratio (FCR)) and intestinal morphology of the duodenum, jejunum, and ileum at slaughter (70 days of age) were evaluated. An inverse relationship was observed between inulin levels and FCR (linear effect; P = 0.006). There was no statistically significant effect of the treatments on total dry matter intake and weight gain (P > 0.05). A linear effect of the inulin level on the villi’s length (VL), villi’s width (VW), and length/depth ratio (VL/DC) in the duodenum; VW in the jejunum; and VL in the ileum (P <0 .05) was reported. In conclusion, a linear effect of the increasing doses of inulin was found on the FCR and the morphological parameters of the duodenum’s integrity, and no differences in the effects of the inulin added to the diet and the treatment with AGP were found.

scholarly journals Productivity and Composition of Fatty Acids in Chicks fed with Azadirachta indica A. Juss

2015 ◽  
pp. 4564-4571
Author(s):  
Imna Trigueros V ◽  
Miguel Ramón C ◽  
José Vázquez O ◽  
Juan Aguirre M ◽  
Carlos Garcia C ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Weight Gain ◽  
Azadirachta Indica ◽  
Broiler Chicks ◽  
Neem Seed ◽  
Omega 3 ◽  
Feed Conversion ◽  
Commercial Diet ◽  
Seed Flour ◽  
Omega 6

ABSTRACTObjective. Evaluate the productivity and composition of fatty acids in chicks fed diets enriched with neem Azadirachta indica A. Juss seed flour. Materials and methods. 80 mixed broiler chicks of Arbor Acres stock and levels 0, 1, 3 and 5% neem seed flour added to a commercial diet were evaluated. 20 experimental units were included in each treatment for five weeks. The consumption and weight gain were recorded, as well as the composition of fatty acids in the fat by means of alkaline transesterification. Data was statistically analyzed by a completely random procedure and the measurements were compared with the Tukey test(p≤0.05). Results. The greatest weight gain, consumption and best feed conversion were found in the treatment that contains 1% neem seed flour. It also produced the increase in the proportion of polyunsaturated fatty acids, especially linoleic acid (C18:2 Omega-6) and eicosapentaenoic acid (C20:5 omega-3), and the proportion of palmitic acid (C16:0). The consumption of feed diminished when 5% of neem flour was added. Conclusions. It was demonstrated that incorporating 1% neem seed flour in the diet of broiler chicks modifies the consumption of fatty acids without harming its productive behavior.RESUMENObjetivo. Evaluar la productividad y composición de ácidos grasos en pollos alimentados con dietas adicionadas con harina de semilla de neem Azadirachta indica A. Juss. Materiales y métodos. Se emplearon 80 pollos mixtos de la estirpe Arbor Acres de engorda y se evaluaron los niveles 0, 1, 3 y 5% de harina de semilla de neem añadidos a una dieta comercial. En cada tratamiento se tuvieron 20 unidades experimentales con una duración de cinco semanas. Se registró el consumo y la ganancia de peso, así como la composición de los ácidos grasos de la grasa mediante transesterificación alcalina. Los datos se analizaron estadísticamente por el procedimiento completamente al azar y las medias se compararon con la prueba de Tukey (p≤ 0.05). Resultados. La mayor ganancia de peso, consumo y la mejor conversión alimenticia correspondió al tratamiento que contenia 1% de harina de semilla de neem. También propició el aumento en la proporción de ácidos grasos poliinsaturados especialmente en el ácido linoleico, (C18:2 omega-6) y en el ácido eicosapentaenoico (C20:5 omega-3), y de manera concomitante se redujo la proporción del ácido palmítico (C16:0). El consumo de alimento disminuyó al adicionar 5% de harina de neem. Conclusiones. Se demostró que la incorporación de 1% de harina de semilla de neem en la dieta de los pollos de engorda modifica la composición de ácidos grasos sin perjudicar su comportamiento productivo.

Haematology and growth performance characteristics of broiler birds fed abattoir wastes (bovine blood and rumen content)

2020 ◽  
Vol 47 (3) ◽  
pp. 67-76
Author(s):  
D. N. Onunkwo ◽  
O. A. Ekine
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Performance Characteristics ◽  
Daily Weight Gain ◽  
Rumen Content ◽  
Broiler Chicks ◽  
Bovine Blood ◽  
Feed Conversion ◽  
Final Body Weight

This study was conducted to assess the effects of abattoir wastes (bovine blood and rumen content mixture) on the haematology and growth performance characteristics of broiler birds. One hundred and twenty (120) unsexed day old Abor acre broiler chicks were randomly assigned to 4 treatments and replicated 3 times in a completely randomized design (CRD) experiment. Four experimental diets were formulated to meet the nutrient requirement of broilers such that the birds were fed sundried abattoir waste (bovine blood and rumen content mixture) included at 0%, 5%, 10% and 15% representing Diet 1, 2, 3 and 4 respectively, with Diet 1 as the control. Each dietary treatment consists of 30 birds with 10 birds per replicate. The experimental diets and clean water were supplied at- libitum throughout the experimental period. Data were collected on feed intake, daily weight gain, final body weight, weight gain. Feed conversion ratios were calculated. Blood samples for hematology was collected, analyzed and recorded. At the end of the 56 days feeding trials, data collected on different parameters were subjected to analysis of variance (ANOVA). Results showed that mixtures of bovine blood and rumen content significantly (P<0.05) improved the final weight (1767.02g -1931.44g), weight gain (1367.02g -1528.44g), feed intake (107.47g -118.99g) and feed conversion ratio (4.87 – 4.08) of the broilers. Significant (P<0.05) improvements were observed on the RBC, WBC, MCV, MCH, eosinophyls and the lymphocytes of the haematological parameters of the broilers. These results showed the complementary potentials of bovine blood and rumen content mixture in broiler diets, which can be included up to 15% in the ration of broilers without detrimentally affecting the growth performance and haematology of the broilers.

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