Corrigendum to “Refeeding ewe’s ad libitum after energy restriction during mid-pregnancy does not affect lamb feed conversion ratio, animal performance and meat quality” [Small Ruminant Res. 180 (2019) 57–62]

The use of fruit by-products such as citrus pulp represents a feeding ingredient that deserves to be evaluated as an energy source in animal rations. Thirty-six British breed steers were allotted to one of the three feeding treatments (12 steers/treatment): 0%, 15% and 30% of fresh citrus pulp inclusion in the ration in a randomized complete block design to evaluate animal performance and carcass and meat quality traits. In the present study, the inclusion of fresh citrus pulp up to 30% of the diet did not affect the animal average daily gain (p > 0.05) but steers that were fed the pulp consumed less feed (p < 0.05) and presented a lower feed conversion ratio (p < 0.05) than their counterparts without citrus pulp in their diet. No effect of fresh citrus pulp was observed on carcass and meat quality (p > 0.05). A greater lipophilic antioxidant capacity (p < 0.05) in meat was observed when fresh citrus pulp was offered at 15% of the diet. Fresh citrus pulp used up to 30% as a feed ingredient in feedlot rations does not negatively affect animal performance or meat quality but, rather, has a positive effect on dry matter intake and a better feed conversion ratio.

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Comparative Study On The Productivity And Profitability Of Commercial Broiler, Cockerel Of A Layer Strain And Cross-Bred (Rir × Fayoumi) Chicks

Bangladesh Journal of Animal Science ◽

10.3329/bjas.v37i2.9886 ◽

1970 ◽

Vol 37 (2) ◽

pp. 89-98 ◽

Cited By ~ 1

Author(s):

PK Sarkar ◽

SD Chowdhury ◽

MH Kabir ◽

PK Sarker

Keyword(s):

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Target Weight ◽

Treatment Groups ◽

Maximum Profit ◽

Body Weights ◽

Commercial Broiler ◽

Ad Libitum ◽

Live Bird

An experiment was conducted to compare the productivity and profitability of commercial broiler, cockerel and cross-bred (F1 RIR ? × Fayoumi ?) chicks up to target body weights of 850, 1000 and 1250g. Two hundred sixteen birds of 3 genotypes each of 72 birds having 18 chicks in each replication were considered. Commercial broiler starter diet was fed to experimental birds ad libitum. Similar care and management were provided to birds of all treatment groups. Commercial broilers attained the target weights of 850, 1000 and 1250g at the age of 21, 24 and 28 days respectively whereas cockerels attained weights close to those targets at 56, 63 and 74 days respectively and in the case of cross-breds, the days were 63, 77 and 90 for those target weights respectively. Feed conversion ratio (FCR) was best in broilers, followed by cockerels and cross-bred chicks respectively. The highest mortality (8.3%) was found in cross-bred group when reared up to target weight of 1250g. The mortality of broiler was 1.4% and no bird was died in cockerel group. Broiler was most profitable (21.11 Tk/kg live bird) at the target weight of 1250g whereas profit from cockerel varied little (21.78, 21.07 and 21.63 Tk/kg live bird against the target weights of 850, 1000 and 1250g respectively) amoung target weights. Therefore, appropriate weight to market these birds was at 850g to minimize the risk of diseases and other management works. Marketing of cross-bred chicks was most profitable (8.43 Tk/kg live bird) at 850g target weight and loss was incurred when rearing was continued up to 1250g. On the basis of results of productivity, it was concluded that commercial broiler, cockerel and cross-bred chicks could be reared upto 28, 56 and 63 days respectively to reach target weights close to 1250, 850 and 850g respectively to obtain maximum profit.? DOI: http://dx.doi.org/10.3329/bjas.v37i2.9886 BJAS 2008; 37(2): 89-98

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PEMANFAATAN AMPAS TAHU YANG DIFERMENTASI DENGAN INOKULAN PROBIOTIK DALAM RANSUM TERHADAP PERFORMANS BROILER

Majalah Ilmiah Peternakan ◽

10.24843/mip.2016.v19.i03.p06 ◽

1970 ◽

Vol 19 (3) ◽

Author(s):

N. M. Witariadi ◽

A. A. P. P. Wibawa ◽

I. W. Wirawan

Keyword(s):

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Ad Libitum

Penelitian ini bertujuan mempelajari pengaruh penggunaan ampas tahu terfermentasi dengan inokulan probiotikterhadap performans broiler. Rancangan yang dipergunakan adalah rancangan acak lengkap (RAL) dengan empatperlakuan dan enam ulangan. Tiap ulangan berisi lima ekor broiler. Ransum disusun isoprotein (CP: 20%) danisoenergi (2900 kkal ME/kg). Perlakuan yaitu ayam yang diberi ransum basal tanpa penggunaan ampas tahusebagai kontrol (A); ransum dengan penggunaan 5% ampas tahu terfermentasi (B), ransum dengan penggunaan10% ampas tahu terfermentasi (C); dan ransum dengan penggunaan 15% ampas tahu terfermentasi (D). Ransum danair minum diberikan ad libitum. Variabel yang diamati, yaitu konsumsi ransum, berat badan akhir, pertambahanberat badan, dan feed conversion ratio (FCR). Hasil penelitian menunjukkan bahwa penggunaan 5% ampas tahuterfermentasi dalam ransum nyata (P<0,05) meningkatkan berat badan akhir, pertambahan berat badan, danefisiensi penggunaan ransum dibandingkan dengan kontrol. Penggunaan 10-15% ampas tahu terfermentasi dalamransum tidak berpengaruh nyata (P>0,05) terhadap berat badan akhir, pertambahan berat badan, dan efisiensipenggunaan ransum dibandingkan dengan kontrol. Dari hasil penelitian ini dapat disimpulkan bahwa penggunaan5% ampas tahu terfermentasi oleh inokulan probiotik (Saccharomyces sp.) dapat meningkatkan performans ayambroiler umur 2-6 minggu, dan pada level 10-15% ampas tahu terfermentasi dalam ransum memberikan hasil yangsama dengan kontrol.

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Effect of expanded diets on growth performance, meat quality and carcass characteristics in finishing pigs

Indian Journal of Animal Research ◽

10.18805/ijar.v0iof.8498 ◽

2017 ◽

Author(s):

Xin Jian Lei ◽

Jun Bae ◽

Ju Lee ◽

Sang Lee ◽

In Kim

Keyword(s):

Growth Performance ◽

Meat Quality ◽

Soybean Meal ◽

Feed Intake ◽

Carcass Characteristics ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Finishing Pigs ◽

Feed Conversion ◽

Daily Gain

The objective of the study was to evaluate the effects of expanded diets on growth performance, meat quality, and carcass characteristics in finishing pigs. A total of 80 finishing pigs [(Landrace × Yorkshire) × Duroc] were randomly allotted to two dietary treatments: 1) unexpanded corn-soybean meal diets; 2) expanded corn-soybean meal diets. Each treatment consisted of ten replicate pens with four pigs (2 gilts and 2 barrows) per pen. There were no differences in daily feed intake and daily gain throughout the experiment (P less than 0.05). However, expanded diets decreased feed conversion ratio compared with unexpanded diets (P less than 0.05). Expanded diets had no effect on carcass characteristics and meat quality with the exception of increased sensory evaluation (color) of meat compared with unexpanded diets (P less than 0.05). In conclusion, expanded diets can improve feed conversion ratio but have no effect on daily gain and daily feed intake and sensory evaluation of meat color.

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Enhancing Growth Performance, Organ Development, Meat Quality, and Bone Mineralisation of Broiler Chickens through Multi-Enzyme Super-Dosing in Reduced Energy Diets

Animals ◽

10.3390/ani11102791 ◽

2021 ◽

Vol 11 (10) ◽

pp. 2791

Author(s):

Jacoba I. Bromfield ◽

Louwrens C. Hoffman ◽

Darwin Horyanto ◽

Elham A. Soumeh

Keyword(s):

Growth Performance ◽

Meat Quality ◽

Feed Intake ◽

Broiler Chickens ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Energy Reduction ◽

Organ Development ◽

Feed Conversion ◽

Negative Effect

This study identified the optimal multi-enzyme dose rate at three energy levels based on the production performance of broiler chickens. A 42-day grow out trial was conducted using 576 day-old mixed-sex ROSS308 broiler chickens in a 3 × 4 factorial arrangement in a completely randomized design. Diets consisting of three metabolizable energy (ME) levels: standard energy (STD), 150 kcal/kg energy reduction (STD-150), and 200 kcal/kg energy reduction (STD-200), were cross factored with four multi-enzyme inclusion levels (0, 350, 700, and 1000 g/ton). The average daily feed intake and feed conversion ratio increased linearly (p < 0.001) as the dietary ME was reduced, and the multi-enzyme addition improved the feed conversion ratio (p < 0.05) and mitigated the negative effect of the reduced energy diets (RED) on feed intake and feed conversion ratios. Carcass composition, organ weights, and meat quality were not affected by the experimental diets. The RED decreased abdominal fat weight (p < 0.05). Total ash, calcium, and phosphorous contents of the tibia bone were improved (p < 0.04) when the RED were supplemented with the multi-enzyme. Super-dosing multi-enzymes in RED mitigates the negative effect of ME reduction on growth performance while maintaining organ development and meat quality and improving bone mineral content.

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SUPLEMENTASI RAGI DALAM RANSUM YANG MENGANDUNG AMPAS TAHU TERHADAP PRODUKSI TELUR AYAM LOHMANN BROWN

Majalah Ilmiah Peternakan ◽

10.24843/mip.2014.v17.i03.p02 ◽

1970 ◽

Vol 17 (3) ◽

Author(s):

A. A. P. Putra Wibawa ◽

A. A. A. Sri Trisnadewi ◽

I. B. Gaga Partama

Keyword(s):

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Ad Libitum

Penelitian ini bertujuan untuk mempelajari pengaruh spenggunaan 10% ampas tahu yang disuplementasi ragi tape (Saccharomyces spp) dalam ransum terhadap produksi telur ayam Lohmann Brown umur 32-40 minggu. Rancangan yang dipergunakan dalam penelitian ini adalah rancangan acak lengkap (RAL) dengan empat macam perlakuan dan enam kali ulangan. Tiap ulangan (unit percobaan) menggunakan tiga ekor ayam petelur Lohmann Brown umur 32 minggu dengan berat badan homogen. Ransum yang diberikan pada ayam selama periode penelitian (umur 32-40 minggu) disusun isiprotein (CP: 17%) dan isoenergi (2750 kkal ME/kg). Keempat perlakuan yang dicobakan yaitu ayam yang diberi ransum basal tanpa penggunaan ampas tahu sebagai kontrol (A); ransum dengan penggunaan 10% ampas tahu (B), ransum dengan penggunaan 10% ampas tahu yang disuplementasi 0,20% ragi tape (C); dan ransum dengan penggunaan 10% ampas tahu terfermentasi (D). Ransum dan air minum diberikan ad libitum. Variabel yang diamati, yaitu konsumsi ransum, jumlah telur, hen-day production, berat telur, dan feed conversion ratio (FCR). Hasil penelitian menunjukkan bahwa penggunaan 10% ampas tahu yang disuplementasi 0,20% ragi tape dalam ransum nyata (P<0,05) dapat meningkatkan produksi telur ayam dibandingkan dengan kontrol. Penggunaan 10% ampas tahu terfermentasi dengan Saccharomyces spp dalam ransum ternyata tidak berpengaruh nyata (P>0,05) terhadap konsumsi ransum. Akan tetapi, secara nyata (P<0,05) meningkatkan produksi telur ayam, serta secara nyata (P<0,05) menurunkan jumlah kadar kolesterol telur ayam. Dari hasil penelitian ini dapat disimpulkan bahwa penggunaan 10% ampas tahu yang disuplementasi 0,20% ragi tape (Saccharomyces spp.) dalam ransum dapat meningkatkan produksi telur ayam Lohmann Brown umur 32-40 minggu.

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An assessment of a novel feed hopper with water available within the through for finishing pigs

Proceedings of the British Society of Animal Production (1972) ◽

10.1017/s0308229600035376 ◽

1987 ◽

Vol 1987 ◽

pp. 102-102

Author(s):

D. C. Patterson

Keyword(s):

Conversion Ratio ◽

Feed Conversion Ratio ◽

Finishing Pigs ◽

Feed Conversion ◽

Meal Feeding ◽

Ad Libitum ◽

Ad Libitum Feeding

In previous experiments in this series, giving dry meal through a hopper with ad libitum feeding resulted in a poorer carcass feed conversion ratio than giving meal as porridge in a conventional trough (D. C. Patterson, unpublished data). In a further experiment a novel feed hopper was assessed with meal feeding. This hopper was designed to give a form of wet feeding and had nipple drinkers positioned within the trough so that pigs could not drink directly from the nipples, instead water was spilled directly onto the meal in the bottom of the trough. No other water was available to pigs on this treatment.

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Tryptophane requirements of pigs between 28 and 56 days of age

Australian Journal of Agricultural Research ◽

10.1071/ar9810845 ◽

1981 ◽

Vol 32 (5) ◽

pp. 845 ◽

Cited By ~ 15

Author(s):

J Leibholz

Keyword(s):

Weight Gain ◽

Blood Plasma ◽

Linear Increase ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Maximum Weight ◽

Meat Meal ◽

Ad Libitum

Sixty-four male pigs between 28 and 56 days of age were fed ad libitum on diets based on maize and meat meal, supplemented with 0 - 0.8 g of L-tryptophanelkg of diet. It was found that the tryptophane requirement of pigs for maximum weight gain and feed conversion ratio was met by 1.64 - 1.67 g/kg of diet between 28 and 56 days of age. There was a linear increase in the retention of nitrogen by the pigs up to the highest level of dietary tryptophane fed in these experiments, viz. 1.67 g/kg of diet. The concentration of urea and tryptophane in the blood plasma suggest that the tryptophane requirement was met by 1.64 g/kg of diet.

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Studies in the supplementation of grazing Friesian steers in the central coast area of New South Wales

Australian Journal of Experimental Agriculture ◽

10.1071/ea9770545 ◽

1977 ◽

Vol 17 (87) ◽

pp. 545

Author(s):

Davies H Lloyd ◽

BG Lemcke

Keyword(s):

Festuca Arundinacea ◽

New South ◽

New South Wales ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

South Wales ◽

The Mean ◽

Ad Libitum ◽

Daily Intakes

Four groups of yearling Friesian steers were offered nil, 2.0 kg 4.0 kg and an ad libitum amount of a barley-based grain ration while grazing Trifolium repens, Lolium perenne, Festuca arundinacea and Phalaris tuberosa based pastures from March 23 to September 7 at Camden, New South Wales. A fifth group was offered the cereal ration in pens with 10 per cent long hay added. The mean daily intakes of grain by the group offered it on pasture was 9.1 kg compared with 8.0 kg for the pen-fed group. The mean daily liveweight gains (kg) were: unsupplemented grazing, 0.51; 2.0 kg of barley, 0.57; 4.0 kg of barley, 0.70; 9.1 kg on pasture, 1.10; and the group offered barley in pens, 0.97. The differences in liveweight gain between 0 and 4.0 kg (P < 0.05); 0 and ad libitum (P < 0.01) and 4.0 and ad libitum (P < 0.05) were statistically significant. The response in liveweight to amount of grain fed was linear but the feed conversion ratio was superior for the group fed grain ad libitum on pasture. They had fewer health problems and gained weight more rapidly than the lot-fed group.

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