scholarly journals The effects of plastic slatted floor and a deep- litter system on the growth performance of hybrid Pekin ducks

2021 ◽  
Vol 64 (1) ◽  
pp. 1-6
Author(s):  
Sabri Arda Eratalar

Abstract. This research was conducted to evaluate the effects of plastic slatted floors and a deep-litter system using wood shavings on the growth performance of current commercial hybrid Pekin ducks. A total of 96 Pekin ducks (Star 53) were reared for 42 d. Live weight, live-weight gain, feed consumption, feed conversion ratio, water consumption, and water ∕ feed consumption ratio were investigated as the performance criteria. With the use of plastic slatted floors, the feed conversion rate dropped and the water ∕ feed consumption ratio showed an incline (p<0.05). This is a very favourable result for the poultry industry and growers. The remaining parameters did not change by altering the ground system (p>0.05). Generally, it can be stated that plastic slatted floor use has advantages concerning the performance criteria of the feed consumption ratio and the water ∕ feed consumption ratio in comparison to the deep-litter system. Furthermore, improvement in the feed conversion ratio is known to benefit the overall performance of poultry as well as having a positive economic impact. It should also be noted that as the birds grew, they were visually less stained, which is another important factor determining feather quality. However, this should be further investigated in future research.

2020 ◽  
Vol 23 (1) ◽  
pp. 44-54
Author(s):  
Nadezhda Palova ◽  
Jivko Nakev ◽  
Teodora Popova ◽  
Maya Ignatova

Abstract(An experiment with two groups of East Balkan pigs – castrated males (n=10) and females (n=10), was carried out to study the growth performance and fattening abilities of the animals from the weaning until slaughter. The pigs were included in the trial at 60 day age. The average live weight of the castrated males was 8. 65±1.08 kg and for the females, 8.5±0.62 kg.The pigs were reared using traditional technology, grazing on natural pastures in the Strandzha mountain, Bulgaria. In autumn, acorns were naturally present in their diet. According to the category, the animals additionally received ground organic feed (50% barley and 50% wheat). The trial lasted 304 days (from February to November, 2019). During this period the final live weight of the male castrated pigs reached 88.00 kg while that of the females was 84.4 kg. The difference, however, was not significant. Furthermore, no significant differences in the growth performance characteristics that could be attributed to the sex of the animals were observed. The average daily gain of both sexes tended to be lower in summer and higher in autumn. The feed conversion ratio was higher in summer. The animals showed high average daily weight gain at pasture when their live weight was over 50 kg.


1970 ◽  
Vol 10 ◽  
pp. 29-35 ◽  
Author(s):  
T. B. Rijal ◽  
D. B. Nepali ◽  
R. A. Sah ◽  
M. P. Sharma

An experiment was conducted from 18th October, 2006 to 18th January, 2007 at IAAS Livestock Farm, Rampur, Chitwan to determine the substitution effects of soybean meal with brewer's dried grain (BDG) on the performance, economics and meat traits of swine production. Starter, grower and finisher diets were formulated containing 18, 16, and 14% CP respectively with 3000 Kcal/kg ME and adequately supplemented with required vitamins, minerals and amino acids. The treatments were: diet without brewer's dried grain -T1 (control diet), diet substituted with 10% brewer's dried grain-T2, diet substituted with 20% brewer's dried grain-T3, diet substituted with 30% brewer's dried grain-T4 and diet substituted with 35% brewer's dried grain-T5. Twenty weaned piglets having 7.37 to 7.94 kg live weight were housed in individual pens. Five piglets were randomly assigned to the five treatments following a randomized complete block design (RCBD) considering each individual as a replication. Fortnightly live weight, daily feed consumption, income over feed and pig cost, and different meat traits of pigs were recorded. The effect of replacing formulated diets with various level of brewer's dried grains on body weight gain was significant (p<0.01) with higher level of substitution resulting lower live-weight at the end of each of starter, grower and finisher diet period. The average body weight of piglets substituted with 35%BDG (27.00kg) and 30%BDG (39.75kg) were significantly lower (p<0.01) compared to the weight of piglets receiving 0% (65.75kg), 10% (64.25kg) and 20% (60.25kg) BDG replaced diets at the end of 3 months experimental period. A significant reduction (P<0.01) in average daily feed consumption were also recorded with increasing level of BDG in the diet. Better feed conversion ratio (FCR) was observed in T2 at early period which at finisher stage T3 diet resulted significantly better FCR which was at par with T1 and T2 diet fed group. However, T5 diet resulted the poorest feed conversion ratio of 5.26, 4.92 and 5.87 for starter, grower and finisher respectively. There was reduction in feed cost with different levels of BDG substitution in diet of pig. Highest income (in per cent) over expenditure (109.01%) was found in T2 followed by T1, T3, and T4. Lowest income over expenditure (-8.2%) was found in T5. Highest dressing percent (71.87%) was recorded in T1 and lowest (70%) in T5 diet fed group. Inclusion of 10-20% BDG seems most acceptable level of substitution of SBM. However, this result needs to be verified under farmer's management condition before recommendation.Key words: Brewer's dried grains; Swine performanceDOI: 10.3126/njst.v10i0.2820 Nepal Journal of Science and Technology Volume 10, 2009 December Page: 29-35  


Author(s):  
Lemma Gulilat ◽  
Firew Tegegne ◽  
Solomon Demeke

The objective of this study was to develop the least-cost starter&rsquo;s diet and evaluated its effect on the growth performance of Sasso breeds and Indigenous ecotype of chicks under the local condition of the South Gondar Zone. The effects of substitution of different levels of commercial starters ration with homemade diet on the growth performance of Sasso and Indigenous chicks were studied in Hiruy Abaregay village of Farta district. The research area is 586km distant from the capital city of Addis Ababa, Ethiopia. A total of 510 Sasso T-44 and 90 Indigenous local ecotypes day-old chicks were randomly divided into five groups, each with 102 and 18 chicks, respectively. These were assigned into five treatments in which 100 (T1), 75 (T2), 50 (T3), 25 (T4), and 0% (T5) of commercial starter&rsquo;s diet in factorial completely randomized design (CRD) with 3 replications for 60 days feeding period. The results obtained indicated that increased levels of substitution of a commercial diet with a homemade diet significantly depressed (p&lt;0.001) mean daily feed consumption and retention of dry matter, nitrogen, and metabolizable energy. Growth rate as measured by mean daily weight gain, mean final body weight, and total feed consumption and feed cost were significantly miserable (p&lt;0.001) in an increased homemade diet. On the contrary, there was an increase in feed conversion ratio and fiber content in high-level dilution of starter&rsquo;s commercial diet with a homemade diet. However, the groups of chicks on 0, 25, and 50% commercial starters diets replaced by homemade diet were significantly higher (p&lt;0.001) in mean daily feed intake, daily weight gain, feed conversion ratio, and final body weight attained. The results of this study indicated that up to 50% of expensive commercial starter&rsquo;s diet could economically be replaced with the least cost homemade diet without adversely affecting the growth performance of chicks.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 175-176
Author(s):  
Zhikai Zeng ◽  
YaKuan Huang ◽  
Liqiang Zhu ◽  
Zhiyuan Chen ◽  
Z J Yuan ◽  
...  

Abstract This study evaluated the effects of dietary net energy concentrations on feeding behavior and growth performance of growing-finishing pigs monitored using a feed intake recording equipment (FIRE). Two hundred and sixteen (48.8 ± 5.6 kg) gilts were blocked by bodyweight and assigned randomly to 1 of 3 dietary treatments, which included low (2,350 kcal/kg), medium (2,450 kcal/kg), and high (2,550 kcal/kg) dietary NE levels. Pigs were housed in 18 pens for 68 d in four phases with 12 pigs and one FIRE station per pen. Bodyweight, feed consumption, and the amount of time and visit at the station of individual pigs were monitored every day by using FIRE. Pigs fed low NE diet spent more time (min) at the station during the first two weeks and visited the station more times with fewer amounts of time (min) per visit after two weeks compared with pigs fed medium and high levels of NE diets (P &lt; 0.05). The speed (g/min) and amount (g/visit) of feed intake were lower (P &lt; 0.05) during phase 3 and the overall period in low NE diet compared with pigs fed medium NE diet. Pigs fed medium NE diet tended to have a greater (P = 0.066) average daily feed intake at phase 4 than pigs fed low NE diet. Increasing NE levels linearly improved (P &lt; 0.05) average daily gain, feed conversion ratio, and final BW during phase 3 and the overall period. However, the overall energy efficiency (Mcal NE/ kg gain) was linearly decreased with increasing NE levels. In conclusion, decreasing dietary NE to 2350 Mcal/kg resulted in more visits to feeders with slow ingestion speed compared with pigs fed diets with 2450 or 2550 Mcal/kg NE. Increasing dietary NE levels linearly improved daily gain and feed conversion ratio, but linearly decreased energy efficiency.


2016 ◽  
Vol 16 (1) ◽  
pp. 31 ◽  
Author(s):  
Nurhayati Nurhayati ◽  
Berliana Berliana ◽  
Nelwida Nelwida

ABSTRAK. Penelitian bertujuan untuk mengetahui performa ayam broiler yang mengkonsumsi kulit nanas yang difermentasi (KNF) dengan yogurt dalam ransum mengandung gulma obat (GO). Materi yang digunakan yaitu 200 ekor ayam broiler jantan umur 2 hari, ransum mengandung gulma obat dan kulit nanas yang difermentasi dengan yogurt. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 5 ulangan. Perlakuan yang diberikan yaitu T0 (ransum kontrol, ransum mengandung 0 % KNF dan 0 % GO), T1 (ransum mengandung 0 % KNF dan 2 % GO), T2 (ransum mengandung 7,5 % KNF dan 2 % GO), T3 (ransum mengandung 15 % KNF dan 2 % GO), dan T4 (ransum mengandung 22,5 % KNF dan 2 % GO). Peubah yang diamati adalah konsumsi ransum, pertambahan bobot badan (PBB), bobot akhir dan konversi ransum. Data dianalisis menggunakan ANOVA dan Uji kontras ortogonal. Hasil penelitian menunjukkan bahwa pemberian ransum yang mengandung KNF berpengaruh nyata (P<0.05) terhadap konsumsi ransum, PBB, bobot akhir, dan konversi ransum. Konsumsi dan konversi ransum meningkat dengan peningkatan pemberian KNF sedangkan bobot badan menurun. Disimpulkan bahwa pemberian tepung kulit nanas setelah difermentasi dengan yogurt sebanyak 22,5 % di dalam ransum mengandung campuran gulma obat dapat menurunkan performa ayam broiler. (Broiler chicken performance fed fermented pineapple peel by yogurt in diet containing medicinal weed)ABSTRACT. Research aimed to determine broiler performance fed different level of yoghurt - fermented pineapple peel (FPPM) in the diet containing medicinal weed. Two hundred 2 day - old male broiler chicken, diet containing medicinal weed  (MW) and yoghurt - fermented pineapple peel used in this study. The experimental design was a completely randomized design with 5 treatments and 5 replications. The treatments were T0 (control, diet containing 0% FPPM and 0% MW), T1 (diet containing 0% FPPM and 2% MW), T2 (diet containing 7.5% FPPM and 2% MW), T3 (diet containing 15% FPPM and 2% MW), and T4 (diet containing 22.5% FPPM and 2% MW). The variables were feed consumption, body weight gain, live weight and feed conversion ratio. Data were analyzed by ANOVA and Contrast orthogonal Test. The results showed that there was a significant effect (P<0,05) of treatment on the feed consumption, body weight gain, live weight and feed conversion ratio. Feed consumption and feed conversion ratio increased with increasing level of FPPM in the diet, however, body weight decreased. It is concluded that feeding yoghurt - fermented pineapple peels up to 22,5 % in the broiler diet containing medicinal weed decreased broiler chicken performance.


Author(s):  
Ökkeş Akyar ◽  
Beyhan Yeter

In this study, Hubbard Red JA57 genotype, which growing slowly in mixed sex, were examined in indoor (KYS) and free-range raising systems (SYS). The study was carried out at the Kahramanmaraş Sutcu Imam University (KSU), Animal Production Application and Research Center for 12 weeks. Each treatment was represented by 3 groups containing 28 male chick (total 168 chick). During the indoor treatment, the chicks were raised in floor pens in a conventional house (3.7 birds/m2). In the free-range treatment, the chickens were housed in a similar indoor house (3.7 birds/m2); in addition, they also had a free-range clover paddock (0.9 bird/m2). All birds were provided with the same diets as ad-libitum. In two different raising systems; live weight, feed consumption, feed conversion ratio, survival rate, carcass and parts rates, edible giblets weight and rates, testicular weights and rates, rectal temperature and tonic immobility were examined. Results showed that the weekly feed conversion ratio was found to be significant at the 11th week and the additive feed conversion ratio at the 12th week. The difference between the groups in terms of rectal temperature and tonic immobility values, testicular weights and rates were found to be significant. In terms of average interaction; While the average rates of hot carcass, cold carcass, back, breast meat and neck were the same, the averages of thigh, bony breast and wing ratios were different. The highest mean abdominal fat rate was found in KYS females, the highest average gizzard rate in SYS females, the highest mean liver in KYS females, and the highest heart weight in SYS males.


2021 ◽  
Vol 44 (3) ◽  
pp. 262-269
Author(s):  
S. E. Okosun ◽  
A. S. Eguaoje

A sixteen week trial was conducted to assess the effects of replacing maize with cassava grit on growth performance and economics of production using 120 “Day old” Harco cockerel chickens. Four experimental cockerel starter and finisher diets were formulated. Diet 1 had 0% cassava grit (CG) while diet 2, 3 and 4 had maize replaced with cassava grit at 33.3, 66.6 and 100% replacement for maize. Chicks were randomly assigned to the four treatment diets in a completely randomized designed (CRD). Results on performance at starter phase revealed that average weekly weight gain and feed intake were significantly (P<0.05) highest among birds fed 33.3% CG. Feed conversion ratio was also significantly (P<0.05) influenced while at finisher the phase average live weight, weight gain and feed conversion ratio were significantly (P<0.05) higher among birds fed 33.3% CG compared to other levels of CG inclusion. Result on economics of production revealed that least cost of feed consume and cost of feed per kilogram weight gain at both phases were recorded among birds fed 100% CG. Income and net profit were highest among birds fed 33.3% CG. Therefore, Cassava grit can replace maize up to 33.3% inclusion level for optimum performance and good cost returns.


2010 ◽  
Vol 53 (5) ◽  
pp. 520-528 ◽  
Author(s):  
R. Zahrádková ◽  
L. Bartoň ◽  
D. Bureš ◽  
V. Teslík ◽  
V. Kudrna

Abstract. The objective of this study was to determine the effects of breed and a diet containing linseed on the growth and carcass composition characteristics of heifers. A total of 48 Limousin (LI) and Charolais (CH) heifers with an average weight of 270 kg were assigned to two diets containing either extruded linseed (LIN) or no supplemental oilseed (CON). The target slaughter weight was set at 500 kg. The diet had no effect on any of the observed production traits. The CH heifers had higher live weight gains (P<0.001) and a lower feed conversion ratio (P<0.001). The LI heifers had a higher dressing percentage (P<0.001), higher meat to bone ratio (P<0.001), greater m. longissimus lumborum et thoracis area (P<0.05), and produced more internal and carcass fat (P<0.05). It was concluded that purebred LI heifers grew less rapidly and less efficiently but produced heavier carcasses with a more favourable meat to bone ratio compared to purebred CH heifers.


2011 ◽  
Vol 27 (4) ◽  
pp. 1643-1648
Author(s):  
S. Lilic ◽  
D. Sefer ◽  
S. Dimitrijevic ◽  
T. Ilic ◽  
S. Ivanovic ◽  
...  

In this paper are presented the growth performances (live weight, average daily weight gain, feed consumption and feed conversion ratio) of broilers Hybro G+ provenience. Feeding, zoohygienic and zootechnical measures met technological normative for this provenience. Broilers were fed with the complete feed mixtures (producer ?Dren?, Novi Sad) with added anticoccidial salinomycine in the amount of 66 mg/kg up to 35. day of fattening. In last week of the fattening period, salinomycine was not added (drug waiting period is 5 days). Live weight of broilers at the end of trial was 1959.74 g to 2750.48 g (average 2340.62 g). During the fattening period, average daily weight gain was 54.70 ? 5.03 g; it was in the range 45.71-64.39 g. Average daily feed consumption was 87.97 g for all fattening period and feed conversion ratio was 87.97 g.


1994 ◽  
Vol 3 (1) ◽  
pp. 41-48
Author(s):  
Eija Helander ◽  
Kirsi Partanen

The experiment was conducted to study whether wheat bran (WB) phytase could improve the availability of intrinsic phosphorus (P) in commercial barley-soybean meal diets enough to replace the added inorganic P partly or completely in the diets of growing-finishing pigs (30-100 kg). Performance as well as certain chemical and physical parameters of the tibia and fibula bones were used as criteria for the WB phytase effect. The experiment was conducted using a 2x3 factorial arrangement. The factors were wheat bran (WB) level - either 0 (WB-) or 100 g/kg (WB+), and phosphorus level - high (HP), medium (MP) and low (LP) corresponding to 4.33 g, 2.99 g and 1.64 g digestible P per a feed unit (FU = 0.7 kg starch equivalent), respectively. The measured digestible P contents of the diets were 4.2, 4.2, 2.7, 2.5, 1.4 and 1.8 g/kg DM, respectively. A content of 2.5-2.7 g of digestible P/kg DM in the diet proved to be sufficient for the whole growing period, but the lowest phosphorus levels led to an impaired growth rate, feed consumption and feed conversion ratio. However, after reaching 60 kg live weight, the pigs on LPWB- and LPWB+ diets were able to grow and utilize feed as effectively as the other pigs. WB at a level of 100 g/kg had no significant effect on the performance, feed conversion ratio or carcass quality criteria of the pigs on any diet. WB phytase showed a positive effect on bone breaking strength on the LP diet.


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