scholarly journals Productivity of growing rabbits at different levels of methionine in the diet

Author(s):  
M. Yu. Sychov ◽  
Т. А. Holubieva ◽  
Yu. V. Pozniakovskyi ◽  
L. M. Andriienko ◽  
M. I. Holubiev

The article presents the results of experimental studies on the influence of various levels of methionine in feed on the productivity of growing rabbits. The research was conducted in the conditions of the problematic research laboratory of feed additives of the National University of Life and Environmental Sciences of Ukraine. Experiment was carried out on young rabbits HYLA hybrids of the French company EUROLAP, of which, on the principle of analogues, four groups were formed – control and 3 experimental, with 20 heads (10 females and 10 males) in each. The experiment lasted 42 days. Every week we conducted individual weighings of the experimental animals, calculation of weight gains and feed costs. For feeding of the experimental rabbits were used diets, which were balanced by energy and main nutritional elements, but differed in the content of methionine – the rabbits of the control group consumed feed containing methionine 0.29%, the second – 0.41%, the third – 0.54%, the fourth – 0.66%. Diet consisted of wheat bran, sunflower meal, sunflower hulls, alfalfa grass meal, premix and bone concentrate. At the 84th day of age, the largest body weight was in rabbits, which consumed feed containing methionine 0.41% – 3005.4 g, which is on 3.2% (P < 0.01) more than in the control. Over the entire period of the experiment largest absolute increase was observed in rabbits of second group (0.41% of methionine) and preponderated the indicator of animals of control group at 5.7% (P < 0.001). The average daily gain for the entire period of the experiment was the highest in rabbits of the second group, which was on 5.8% (P < 0.001) more than in control. Calculations of feed costs for the period of growth 42–84 days indicate that the rabbits that consumed a feed containing 0.66% methionine per 1 kg of body weight gain consumed it by 2.3% less than control, and those who consumed feed with contents 0.54% methionine – by 1.5% less, 0.41% methionine – by 1.2% less. According to experimental results, we can conclude that for maximum increases in body weight with moderate cost of feed per unit of weight must use diet containing methionine 0.41%.

2017 ◽  
Vol 7 (1) ◽  
pp. 37-45 ◽  
Author(s):  
I. I. Ibatullin ◽  
A. M. Omelian ◽  
M. Yu. Sychov

<p>The productivity of young meat quails was estimated at use of feed with different levels of arginine. Experimental studies were conducted in course of Problem Research Laboratory of feed additives of National University of Life and Environmental Sciences of Ukraine. Pharaoh quails were used for scientific experiment that was carried out by method of analog groups. Arginine level contamination in the diets of experimental groups was regulated by the introduction of feed synthetic analogs of amino acid. Part of arginine in mixed fodder of poultry control group was 1.57 % in the fodder of quails of 2-nd, 3-rd, 4-th and 5-th research groups and that were 1.39, 1.48, 1.66, 1.75 % respectively. The feeding of the was done by group and feed was distributed twice – in morning and evening. Ii was proved that the feeding of quails by mix fodder with arginine content of 1.66% contributes to increment of the live weight by 2.6 % on average, daily gain - by 2.7 %, the weight before slaughter by 3 % and reduce the cost of feed per 1 kg of growth by 1.5 %. This could contribute to the further research of arginine-lysine optimal ratio in mixed fodder for quails and their impact on zootechnical indices.</p>


Author(s):  
M. I. Holubiev ◽  
T. A. Holubieva

In the article, results of researches on an establishment of an optimum source of Zinc are resulted. Zinc was additionally added mixed fodder for quails grown for meat. In the research laboratory of feed additives National University of Life and Environmental Sciences of Ukraine carried out the experiment. In accordance with to the scheme of the experiment were selected of 300 daily quails. Were formed three groups – control and two experimental, 100 quails (50 females and 50 males) in each. Quails of the first group fed zinc sulfate, the second group – zinc glycinate, the third group – zinc citrate. Were studied indicators of growth, safety and the cost of feed per 1 kg increase in body weight daily quails ages 1–35 depending on the source of zinc in the mixed fodders. It was found that more feed consumed quail, which was added to the mixed feeds of organic sources of Zinc. On this indicator, they dominated the control by 1.8–1.9%. The preservation of quails was quite high in the experimental groups and did not depend on the source of Zinc. Additional introduction of organic sources Zinc increases the final body weight by 1.8–1.6% (P < 0.05). The lowest feed costs per 1 kg of body weight gain were in quail, which included Zinc glycinate in the mixed fodder composition. The relationship between the cost of feed and fodder source of zinc (y = 0.011x2 – 0.037x + 3.147, R² = 1)


Author(s):  
A. V. Huryn ◽  
T. A. Holubieva

In the article, results of researches on an establishment of an optimum level of polyphenolic carbon complex from Antarctic black yeast Nadsoniella nigra are resulted. Experimental studies conducted in terms of problem research laboratory of feed additives National University of Life and Environmental Sciences of Ukraine. Independent experiment was conducted with growing quails. We conducted a randomized block experiment with 4 treatments, each with 4 replicates of 30 growing birds (1 to 42 d of age). It was experimentally established that feeding quails polyphenolcarbonate complex from antarctic black yeast Nadsoniella nigra, the basis of which is melanin, in the compound feed at 1.0 mg/kg increased body weight at 42 days of age by 3.2 % (P < 0.001). Feeding the complex at the level of 0.5 mg/kg contributed to a probable increase in body weight of animals by 2.9 % (P < 0.001). The difference between animals of groups 3 and 4 was 0.3 %. This indicates an already effective dose of the complex at the level of 0.5 mg/kg of feed. Adding to the feed complex at the level of 0.1–1.0 mg/1 kg of feed helps to reduce feed costs by 0.6–1.6 %. The most effective feed conversion for the 1–42-day period is set at 3,345 kg per 1 kg of body weight gain of quails.


2021 ◽  
Vol 34 (2) ◽  
pp. 265-275 ◽  
Author(s):  
Y. C. Hsieh ◽  
W. C. Lin ◽  
W. Y. Chuang ◽  
M. H. Chen ◽  
S. C. Chang ◽  
...  

Objective: The study developed mushroom stalk residues as feed additives in the broiler diet for improving the growth performance and immunity of broilers as well as to increase the value of mushroom stalk residues.Methods: In total, 300 ROSS 308 broilers were randomly allocated into fifteen pens with five dietary treatments: i) control, basal diet; ii) CMWM, supplemented with 1% <i>Cordyceps militaris</i> waster medium (CM); iii) CMPE, supplemented with 0.5% CM+0.5% <i>Pleurotus eryngii</i> stalk residue (PE); iv) CMPS, supplemented with 0.5% CM+0.5% <i>Pleurotus sajorcaju</i> stalk residue (PS); v) CMFV, supplemented with 0.5% CM+0.5% <i>Fammulina velutipes</i> stalk residue (FV).Results: The chemical analysis results showed that CM extracts, PE extracts, PS extracts, and FV extracts contain functional components such as polysaccharides and phenols and have both 2, 2‐diphenyl‐1‐picryl‐hydrazyl‐hydrate scavenging and Ferrous scavenging capacities. The group CMWM saw increased body weight gain and feed conversion rate and the promotion of jejunum villus growth, but there is no significant difference in the intestinal bacteria phase. Antioxidant genes in the nuclear factor (erythroid-derived 2)-like 2 (Nrf2)- antioxidant responsive element pathway among the groups are significantly higher than that of the control group, especially in group CMWM.Conclusion: The mushroom stalk residues have antioxidant functional components, can improve the intestinal health and body weight gain of chickens, and can activate the antioxidant pathway of Nrf2 to increase the heme oxygenase-1 expression. The treatment with 1% CM was the most promising as a feed additive.


Author(s):  
M. Sychov ◽  
T. Golubeva ◽  
V. Kovalchuk ◽  
Y. Poznyakovskiy

The article presents the expediency of using valine in the feeding of growing quails of meat direction of productivity. The studies were conducted in the conditions of research laboratory of feed additives of National University of Life and Environmental Sciences of Ukraine. The experiment was conducted with growing Pharaoh quails. It was selected 500 daily quails. Birds were placed in 20 cages with 25 heads in each. In the formation of analog groups, the body weight of the birds was taken into account. Quails were fed full-fledged mixed fodder, which was balanced by energy and other nutrients. The feed for the quails of the control group contained the natural level of valine, and the experimental groups – additionally L-valine according to the experimental scheme. Observed a relationship between the level of valine in feed and feed conversion (R2 = 0.7359). The most effective level of valine in mixed fodder for quail, which is grown for meat, to obtain a sufficiently large body weight with a low level of feed intake per unit of growth is at 1– 21-day age – 1.68% and at 22– 35-day age – 1.23%.


2018 ◽  
Vol 1 (2) ◽  
pp. 3-6
Author(s):  
Yu.V. Pozniakovskyi ◽  
M.I. Holubiev ◽  
T.A. Holubieva

The results of studies on the optimal level of zinc, which are additionally introduced into feed for rabbits grown for meat, are presented. Experimental researches were conducted in the conditions of the problematic research laboratory of feed additives of the National University of Life and Environmental Sciences of Ukraine. A scientific and economic experiment was carried out on young rabbits of HYLA hybrids of the French company EUROLAP. The study was conducted by group method. In the 42-day age, 60 rabbits were selected, out of which, according to the analogues principle, three groups were formed – one control and two experimental, with 20 rabbits (10 females and 10 males) in each. The research lasted for 42 days. It was used full-grain granulated feed for feeding the experimental young rabbits, which according to the chemical composition differed in content of zinc in them. Rabbits of the control group received feed containing zinc 50 mg/kg, the second – 100 mg/kg, the third – 150 mg/kg. It was established that feeding of rabbits in the 43–84-day-old age with feed containing zinc 100 mg/kg contributes to an increase in body weight by 2.9%, and an increase in average daily growth during the growing season, respectively, by 4.7%. Feed costs per 1 kg growth in young rabbits consuming feed containing Zinc were 1.0% lower than the control group's young. Rabbits which were fed with feed containing zinc 150 mg/kg were inferior to body weight and average daily increments, respectively, by 1.4% and 2.7% of animals fed with a feed with a zinc level of 50 mg/kg.


2012 ◽  
Vol 12 ◽  
pp. 55-60
Author(s):  
MR Tiwari ◽  
BK Shrestha ◽  
LN Panday ◽  
P Mandal

For correcting, the nutritional imbalance of rice straw feed diet by supplementing energy and protein rich concentrate (rice bran) an experiment was carried out in growing male goats at Agriculture Research Station (Goat), Bandipur, Tanahun from November 2009 to Januwary 2010. Twelve goats of 6-7 months of age and similar body weight were divided into four treatment groups having three animals in each group by using complete randomized design. Four types of diet were formulated for these experimental animals. The animals of control group (treatment 1) were provided UTRS, Raikhanayo and concentrate mixture at the rate of 65, 25 and 10% of dry matter requirement, respectively. Dry matter requirement of treatment 2 was fulfilled by providing urea treated rice straw (UTRS), Raikhanayo and rice bran @ 65, 25 and 10%, respectively. Treatment 3 received dry matter requirement by UTRS, Raikhanayo and rice bran @ 55, 25 and 20%, respectively whereas treatment 4 got @ 45, 25 and 30 percent UTRS, Raikhanayo and rice bran, respectively. The study revealed that there was no significant effect in fodder and UTRS intake between diet groups except rice bran (P<0.001). Likewise, there was highly significant (P<0.001) effect in total dry matter intake between diet groups. The highest body weight gain was observed in treatment 4 (17.5 ± 1.8 kg) followed by treatment 3 and 2 (15.66 ± 1.15 kg and 15.5 ± 3.27 kg, respectively). The lowest body weight gain was noted for treatment 1 (14.5 ± 1.80 kg); however, it was also found non-significant between diet groups. Average daily gain was recorded highest in treatment 4 (50 g /day) followed by treatment 2 (31.44 g /day) whereas average daily gain for treatment 1 and 2 were recorded similar (27.77 g /day).DOI: http://dx.doi.org/10.3126/njst.v12i0.6480 Nepal Journal of Science and Technology 12 (2011) 55-60 


2020 ◽  
Vol 3 (3) ◽  
pp. 29-33
Author(s):  
M. Holubiev ◽  
T. Holubieva ◽  
M. Sychov

Based on the results of the analysis of feed materials on the content of micronutrient elements and conducting scientific experiments on broilers chicken, the most effective source of Manganese, Zinc, Iron and Copper in mixed feeds, which contributes to solving the problem of increasing the quality of feeding and intensifying the growth of poultry has been substantiated. The optimum source of essential elements (Mn, Zn, Fe, Cu) for broilers chicken through feeds, the level of their incorporation into mixed fodders have been experimentally determined, and their influence on productivity and feed costs per 1 kg of body weight gain have been investigated. The tasks set in the work have been solved experimentally using analytical (analysis of literature sources), zoo-technical (growth indices, feed intake) and statistical (processing of the results obtained) methods of research. The use of mixed feeds in feeding broilers chicken which contained glycinate of Manganese, Zinc, Iron and Copper making 75 % of the needs, contributes to increasing their body weight by 2.5 % and increasing the growth rate by 2.4 %. Feed costs per 1 kg of broilers chicken growth were 1.5 % lower than the young bird index of the control group.


2017 ◽  
Vol 19 (74) ◽  
pp. 38-43 ◽  
Author(s):  
O. S. Orischuk ◽  
N. A. Ruban ◽  
S. V. Tsap ◽  
V. V. Mykytiuk ◽  
L. M. Darmohray

The results of the impact of soy lecithin and sunflower on productivity and quality slaughter calves geese. Experimental studies were conducted with 200 geese breed «Danish lehart» which formed 5 groups. Since days old, I (control) group of geese received during the research period, complete feed is made in terms of private enterprise «Orbita», II, III, IV and V (experimental) group received a complete feed with the addition of its composition of different doses of lecithin sunflower instead of a similar amount of soybean meal. Experimental young geese fed complete ration that was balanced in essential nutrients. Over the entire period of growing the highest average increase in body weight observed in geese II experimental group, which was 95.2 g, which is 9.7% higher compared with the control. Advantage geese III, IV and V of experimental groups fed 0.3%, 0.4% and 0.5% soy lecithin, this indicator was 0.3%, 4.8% and 7.4% compared to analog control group. A similar trend was observed in terms of the absolute increase in body weight, where the highest increase was observed in the experimental group of geese II – 5711 g, which is 9.6% higher compared with the control. Feeding soy lecithin III, IV and V of the experimental group also tended to increase in absolute growth, namely 0.3%, 4.8% and 6.4% relative and 0.5% – 0.8%. To assess meat quality of young geese for the use of sunflower lecithin and soybean aged 60 days was held control slaughter to determine slaughtered parameters. In terms of pulp output young geese II experimental group exceeded by 16.3% (P < 0.01), analogues control group, the experimental group III geese by 4.4%, geese IV experimental group 6.4% (P < 0.05) and the experimental group geese V 8.5% respectively. By weight of skin with subcutaneous fat geese dominated research groups geese control group 12.3%, 7.1%, 5.2% and 9.9% respectively. Calculation of meat and osteal index showed that in II experimental group the figure was 1.86 and was 7.5% higher than the control at 3.5%, III research group – on 2.7%, IV group – to 1.6% and 0.5% V group respectively. Analyzing the findings can assert about the appropriateness of sunflower lecithin in the composition of complete feed young geese in an amount of 0.4%. Prospects of further research is to study the effects of different amounts and sources of sunflower lecithin in feeding breeder geese breed «Danish lehart».


2020 ◽  
Vol 18 (4) ◽  
pp. e0613
Author(s):  
Souha Tibaoui ◽  
Hadhami Hajji ◽  
Samir Smeti ◽  
Ilyes Mekki ◽  
Ines Essid ◽  
...  

Aim of study: Cull ewes are characterized by poor body condition, low body weights and tough meat texture. This work aimed to investigate the effect of distillated myrtle leaves (MDL) intake on body weight (BW) gain; carcass characteristics and meat quality of Barbarine cull ewes.Area of study: Northwest of TunisiaMaterial and methods: 27 Barbarine ewes were assigned into 3 groups receiving 500 g of oat hay and 750 g of concentrate control group (C), while they were given concentrate and pellets, containing 87% MDL, as substitute to hay in MHay group; for MConc group, they were fed hay, concentrate and pellets containing 30% MDL in partial substitution to concentrate. At the end of the fattening period (90 days), ewes were slaughtered.Main results: The dry matter intake was higher (p<0.05) for MConc and C groups. The average daily gain was significantly higher for C and MConc than MHay groups (113 and 107 vs. 87 g, respectively). Ewes fed MHay and MConc had a significantly lower feed conversion rate than Control group (12.5 vs. 15.4). Dietary treatment had no significant effect on carcass joint’s weight and proportions. The dressing percentage and carcass tissue composition were similar for all groups. The ultimate pH, water cooking loss and color parameters values were unaffected by the type of diet.Research highlights: These findings revealed that MDL could substitute, in ewes feeding, up to 87% to hay or up to 30% to concentrate without negative effects on body weight, carcass characteristics and meat quality.


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