scholarly journals Effects of purified glycerin in balanced diets of chicken broilers treated from 22 to 42 days of age1

2017 ◽  
Vol 38 (4) ◽  
pp. 2083
Author(s):  
Mônica Calixto da Silva ◽  
Roberta Gomes Marçal Vieira Vaz ◽  
Kênia Ferreira Rodrigues ◽  
Gerson Fausto da Silva ◽  
Luciano Fernandes Sousa ◽  
...  

The aim of this study was to investigate the effects of including purified glycerin in the diets of broilers from 22 to 42 days of age. Eighty Cobb 500® lineage broilers were distributed in a completely randomized design (CRD) to one of four treatment groups (0, 2, 4 and 6% of purified glycerin inclusion in feed) and five replicates of four birds. The birds were evaluated for performance (weight gain, feed intake and feed conversion); carcass yield; special cuts yield (thigh, drumstick and breast); muscle colour (L* = lightness, a* = redness, b* = yellowness); and crude protein, ether extract and moisture content of the breast muscle. Inclusion of purified glycerin in the diet did not affect (p > 0.05) any of the growth performance indicators, which demonstrated the technical feasibility of including up to 6% glycerin in the diet. Similarly, there was no effect on carcass yield; special-cut yields; muscle colour (L* = lightness, a* = redness, b* = yellowness); or crude protein, ether extract and moisture content of breast muscle. The inclusion of purified glycerin at up to 6% in the diet proved to be feasible in broilers treated from 22 to 42 days of age.

2016 ◽  
Vol 46 (5) ◽  
pp. 933-936 ◽  
Author(s):  
Cíntia Amaral Moraes ◽  
Evandro de Abreu Fernandes ◽  
Márcia Marques Silveira ◽  
Julyana Machado da Silva Martins ◽  
Fernanda Heloisa Litz ◽  
...  

ABSTRACT: The objective of this study was to evaluate the effect of replacing corn with sorghum in feed on performance, carcass yield, and composition of specialized meat cuts in quails. A total of 1200, 1-day-old female quails were raised up to 42 days of age. The completely randomized design consisted of four treatments with six replicates each and with 50 quails in each cage. Treatments consisted of four levels of sorghum replacement in the diet (0, 40, 60, and 100% sorghum). All birds were weighed to assess the weight gain. Feed conversion was calculated as the relationship between feed intake and weight gain. Mortality was reported daily and calculated at the end of each week. At 42 days, the birds were slaughtered and the carcass, thigh and drumstick, and breast yields were assessed. Mineral matter, ether extract, and crude protein analyses were performed using breast cuts and thigh + drumstick cuts. No significant differences were noted in cut performance, yield, or composition. Thus, it can be concluded that the ground grain sorghum can entirely replace corn in quail feed, as it does not negatively affect carcass performance, yield, and nutritional quality.


2021 ◽  
Vol 41 (2) ◽  
pp. 53-60
Author(s):  
I. P. Ogbuewu ◽  
T. C. Iwuji ◽  
I. F. Etuk ◽  
C. T. Ezeokeke ◽  
I. C. Okoli ◽  
...  

Seventy two (72) sexed crossbred rabbits aged 6 months were used to determine the effect of ginger rhizome powder (GRP) supplementation on reproductive organ and serum sex hormonal characteristics of pubertal rabbits. The experimental rabbits were divided into 2 treatment groups comprising 36 males and 36 females. Each group was divided into 4 dietary treatments (BT1, BT2, BT3 and BT4 ) of 9 animals and replicated thrice with 3 animals per replicate in a completely randomized design (CRD). The animals were fed formulated diet containing 2900 Kcal ME kg-1 and 18% crude protein supplemented with GRP at the rate of 0, 5, 10 and 15 g kg-1 feed respectively. Rabbits in each dietary group were fed 50gms of Guinea grass leaf meal containing 27.6% CF (dry matter basis) occasionally as additional fibre sources. Feed and water were offered ad libitum and the study lasted for 10 weeks. Testosterone values of BT (5.83 ng mL-1) and BT (6.28 ng mL-1) and follicle stimulating hormone (FSH) levels of BT (1.15 mIU mL-1) were significantly influenced (p<0.05) by ginger rhizome powder. Bucks on BT3 and BT4 had lower luteinizing hormone (LH) level than the BT1 bucks. For the females, FSH and LH values ranged significantly (p<0.05) from 0.90 to 2.05 mIU mL-1 and 0.90 to 3.15 mIU mL-1 respectively. The 17â - estradiol and progesterone levels also ranged significantly (p<0.05) from 166.35 to 175.05 pg mL-1 and 15.45 to 16.80 ng mL-1 respectively. Ovarian weight of rabbit on BT was significantly (p<0.05) higher than those on BT1 but similar to those on BT2 and BT4 treatments. It was therefore concluded that the use of ginger rhizome powder in rabbit diets improved the weight of the ovary as well as enhances serum progesterone, estrogen and testosterone levels.


2021 ◽  
Vol 42 (5) ◽  
pp. 2903-2924
Author(s):  
Lindolfo Dorcino dos Santos Neto ◽  
◽  
Julyana Machado da Silva Martins ◽  
Genilson Bezerra de Carvalho ◽  
Roberto Moraes Jardim Filho ◽  
...  

Two experiments were carried out to investigate the effect of “on top” addition of different enzyme complexes, the enzyme α-galactosidase and three sources of the enzyme phytase available on the market, in broiler diets. In the first experiment, 1260 one-day-old Cobb 500® chicks were distributed into seven treatments in a completely randomized design (CRD) with six replicates and 30 birds/replicate. Treatments consisted of combinations of different enzyme complexes, namely, complex A (phytase, protease, xylanase, ß-glucanase, cellulase, amylase, pectinase), complex B (protease and cellulase) and complex C (xylanase, amylase and protease); isolated α-galactosidase (GAL); and three sources of phytase (P1, P2 and P3) in the diet. The treatments were formulated as follows: T1 - basal diet (BD); T2 - BD + enzyme complex A + enzyme complex B (BDAB); T3 - BDAB + GAL; T4 - BD + complex A + GAL; T5 - BD + complex C + P1 + GAL (BDCG); T6 - BDCG + P2; and T7 - BDCG + P3. The following variables were measured in the experimental period of 42 days: feed intake (FI), weight gain (WG), average final weight (AFW), feed conversion (FC), and carcass yield. Significant differences occurred for AFW, WG and FC in the pre-starter phase. In the second experiment, 112 Cobb 500® chicks aged 25 days were distributed into seven treatments in a CRD with four replicates and four birds/replicate. Treatments were the same as in the first experiment. Nutrient digestibility was evaluated in an experimental period of seven days. Differences were found in the metabolism coefficient of ether extract (MCEE). Dietary inclusion of enzyme complexes improves the AFW and WG of chickens from 1 to 7 days of age and MCEE in the grower phase.


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Trisno Agung Wibowo ◽  
Novi Eka Wati ◽  
Miki Suhadi

The aim of the study was to know the effect of Curcuma xanthorhiza as herbal feed additive on feed consumption, daily body weight gain and feed conversion ratio of Kampung Unggul Balitnak (KUB) Chicken. The research was conducted at Kemukus Village, Ketapang District, South Lampung Regency. The experimental used 80 unisex KUB chicken aged 5 week. They were feed a ration with control ration + 0% temulawak flour (P0), control ration + 0,1% temulawak flour (P1), control ration + 0,2% temulawak flour (P2) and control ration + 0,3% temulawak flour (P4) during 30 days. The control ration containing 21% crude protein and 3150 kcal/kg metabolism energy. The study used a quantitative method with completely randomized design with 4 treatments and 4 replications. The results showed that the addition of temulawak flour (Curcuma xanthoriza) up to 0.3% did not effect (P> 0.05) on feed consumption but was affected (P


Author(s):  
Luís Eugênio Lessa Bulhões ◽  
Rogério Teixeira Duarte ◽  
Cícero Luiz Calazans De Lima ◽  
Maria José de Holanda Leite ◽  
Igor Cavalcante Torres ◽  
...  

The objective of this work was to evaluate the quality of the Ripa enriched with urea, yeast and sugar cane molasses, fermented and subjected to the drying process. Using as parameters: moisture content, Brix, pH, acidity and protein content. We used a completely randomized design with ten replications, two treatments and one control. The model included non-fermented (RNFM) and fermented (RFM) treatments of the variety of Rosinha cassava. Fermentation was performed during 132 hours under ambient conditions, with a 10% yeast treatment (w/V), 4% Urea (w/V) and 20% molasses (w/V) and the other 70 ml of distilled water. Regarding the moisture content of the material after the dehydration period, mean values between 46.42% and 58.33% were observed. The Brix degree of the water treatment and the control samples did not differ, however, differed from the treatment urea + molasses + yeast, which presented the highest values of this parameter. The pH averages ranged from 4.49 to 7.85, differing statistically. Titratable acidity ranged from 1.760 to 14.040. A considerable gain of crude protein was observed in the treatment urea + molasses + yeast, which was statistically higher than the others.


2022 ◽  
Vol 20 (1) ◽  
pp. e06SC01-e06SC01
Author(s):  
Natalia C. Aguiar ◽  

Aim of study: To evaluate the effects of increasing NaCl levels on the zootechnical performance of pacu fingerling. Area of study: The experiments were conducted at the Aquatic Organism Production and Reproduction Systems Laboratory belonging to the Federal University of Paraná (UFPR), in the Palotina Sector, Paraná Estate, Brazil. Material and methods: Seven hundred and fifty fingerlings with an average weight of 3.41 ± 0.09 g were distributed in circular boxes, in a completely randomized design consisting of six treatments and five replications. Treatments comprised soybean- and maize-based diets containing increasing levels of NaCl (0.00, 0.25, 0.50, 0.75, 1.00 and 1.25%). The experiments were conducted for 50 days. At the end of the experimental period the fish were fasted for 24 hours, anesthetized, weighed and measured to calculate zootechnical performances. Performance data were subjected to an analysis of variance followed by Tukey’s test when significant differences were found between the means (p<0.05). Main results: The influence (p<0.05) of dietary NaCl levels on final weight, feed intake, apparent feed conversion, specific growth rate, average weight gain, clean trunk production, head carcass yield, headless carcass yield, feed intake and survival was assessed. The results indicate that non-salt treated fingerlings along with the 0.25% salt inclusion treatment led to better feed use, as evidenced by apparent feed conversions of 1.64 and 2.02, respectively. Research highlights: The inclusion of NaCl in pacu fingerling soybean and maize-based diets is not recommended.


2020 ◽  
Vol 9 (8) ◽  
pp. e828986702
Author(s):  
Dayane Josiane Vieira ◽  
Sandra Regina Freitas Pinheiro ◽  
Keila Abadia Barbosa ◽  
Danielly Rodrigues Fernandes Moreira ◽  
Leilane Rocha Barros Dourado ◽  
...  

This study aimed to evaluate the performance of broilers fed a diet in which the total protein has been replaced by the protein of the crambe meal. The experiment was used 630 male chickens (Cobb® 500) from 8 to 42 days of age, distributed in a completely randomized design with five treatments, six replications of 21 birds per plot. The treatments were: control diet (0%) and diets containing 3, 6, 9 and 12% of crambe meal protein in replacement of the total protein of the feed. The performance was evaluated in the initial phase (8 to 21 days), growth (22 to 42 days) and total (8 to 42 days). Carcass and cuts was evaluated at 43 days of age. Diets containing crambe meal promoted lower feed intake compared with to the control diet in all evaluated phases. For weight gain, a worse result was observed with increased inclusion of crambe protein, with a linear decrease compared to those who did not receive crambe in the total breeding period. It was found that for the total period the best feed conversion was obtained with 6% of the inclusion of crambe protein in comparison to the crambe-free diet. Carcass, breast and thigh weights decreased with a diet containing 12% of the crambe protein. The results indicate that it is possible to partially replace the crude protein of the feed up to 6% with the protein of the crambe meal.


2019 ◽  
Vol 71 (3) ◽  
pp. 983-989
Author(s):  
G.V. Dessimoni ◽  
N.K. Sakomura ◽  
D.C.Z. Donato ◽  
L. Soares ◽  
M.F. Sarcinelli ◽  
...  

ABSTRACT An experiment was conducted to evaluate broiler chicken performance and carcass yield in response to carbohydrase supplementation (Xylanase and Betaglucanase; XB) and association of carbohydrase and phytase (PHY). A total of 1,920 day-old male broiler chicks (Cobb 500) were distributed in a completely randomized design with 8 treatments and 8 replicates each, allocated in 64 pens with 30 chicks each. The treatments were: Positive Control (PC); Negative Control (NC): reduced ME [-120kcal/kg (Starter) and -170kcal/kg (Finisher)]; NC + XB [50g/ton]; NC + XB [100g/ton]; NC + XB [150g/ton]; NC + XB [50g/ton] + PHY [100g/ton]; NC + XB [100g/ton] + PHY [100g/ton]; NC + XB [150g/ton] + PHY [100g/ton]. The inclusion of XB (150) and XB (50, 100, and 150) associated with phytase increased feed intake than positive control when considering the total rearing phase. The feed conversion ratio of all broilers fed diets with energy reduction were worse than positive control, even with the addition of enzymes, and did not differ between them. There was no significant effect of treatments on carcass parameters.


2020 ◽  
Vol 1 (37) ◽  
pp. 89-97
Author(s):  
Hung Thai Lam ◽  
Ngu Trong Nguyen

A total of 256 one-day-old chicks were allocated into a completely randomized design with 4 treatments and 4replicates to evaluate growth, feed conversion ratio (FCR), and nutrient digestibility (ND) of Noi chickens. The treatments consisted of control diets (Lys0) containing 1.0 and 0.9% lysine for birds 1 to 28 and 29 to 56 daysof age respectively; 3 other treatments (Lys1; Lys2; Lys3) had 0.1, 0.2, 0.3% of lysine added to diets respectively. Dietary crude protein (CP) was calculated to 19% and 17% for 1 to 28 and 29 to 56 days old, but dietary ME was2.900 kcal/kg of feed for the entire duration of the study. On the last seven days of each period, one male and one female per replicate were selected to be assessed for apparent ND by ferric oxide (Fe2O3) marker. Birds were fed, provided fresh water ad libitum, and vaccinated to prevent some common diseases. Results showed that lysine supplemented 0.2 to 0.3% and 0.3% in diets for the birds between 1 to 28 and 29 to 56 days old significantly improved the growth and FCR of the chickens (P<0.05). Also, an additional 0.1-0.3% of lysine in the Noi chickens’ diets dramatically increased CP and average amino acid apparent digestibility (P<0.05),but did not effect the calcium and phosphorus digestibility of the Noi broilers.


2020 ◽  
Vol 7 (3) ◽  
pp. 120-130
Author(s):  
OLAOLUWA AYODEJI ADEBAYO ◽  
JUDE CHIKEZIE ◽  
SHAFIU KILISHI HALIDU

Cake of shea nut is an agroforestry by-product and residue after fat extraction from shea nuts for fat with no economic value and its increasing output has become an environmental issue lately. A 30-day study was conducted to investigate the apparent nutrient digestibility and carcass yield of broiler chicken fed cooked cake of shea nut diets of different fermentation periods. A total of 144 unsexed Arbor Acres Plus day-old broiler chickens were divided into four dietary treatments with four replicates of nine birds each in a completely randomized design. The results showed that fermentation enhanced the nutrient profile of cake of shea nut meal especially concerning crude protein and crude fiber as compared to raw cake of shea nut meal. The treatment values for crude protein and crude fiber digestibility showed significant (p < 0.05) differences amongst the dietary treatments while other nutrient parameters measured were not significantly (p > 0.05) different. There was no significant (p > 0.05) difference amid the treatment means for the control (carcass, breast and liver yield) and the carcass, breast and liver yield of broiler chickens fed diets containing different periods of fermented-cooked cake of shea nut meal.


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