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

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in a poorer carcass feed conversion ratio than giving meal as porridge in a conventional trough (D. C. Patterson, unpublished data).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.

The effect of design of mono-place feeders on growth performance of finishing pigs

1991 ◽  
Vol 1991 ◽  
pp. 69-69
Author(s):  
N. Walker
Keyword(s):  
Water Supply ◽  
Growth Performance ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Finishing Pigs ◽  
Feed Conversion ◽  
Short Term ◽  
Ad Libitum ◽  
Growth Trial

When feed is offered ad libitum from hopper feeders, with water supply remote from the feeder, the feed conversion ratio with pelleted diets is improved by around 10% compared with non-pelleted diets (Patterson and Walker, 1989). This difference was reduced to around 6% when mono-place feeders with built-in water supply were used (Walker, 1990). The improved digestibility due to pelleting accounts for only 1% unit of these differences and the majority therefore appears to be due to feed wastage. A hopper feeder was developed by Baxter (1989) which minimised feed wastage of both pelleted and non-pelleted diets when assessed by short term collections of spilled feed. It was considered that a longer term growth trial would be a good indicator of the benefits of this feeder compared with other designs which had been used here in previous experiments.

Response to selection and genotype–environment interaction in mink (Neovison vison) selected on ad libitum and restricted feeding

2011 ◽  
Vol 91 (2) ◽  
pp. 231-237 ◽  
Author(s):  
Vivi Hunnicke Nielsen ◽  
Steen Henrik Møller ◽  
Bente Krogh Hansen ◽  
Peer Berg
Keyword(s):  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Breeding Value ◽  
Environment Interaction ◽  
Restricted Feeding ◽  
Response To Selection ◽  
Feed Conversion ◽  
Genotype Environment Interaction ◽  
Ad Libitum ◽  
Ad Libitum Feeding

Nielsen, V. H., Møller, S. H., Hansen, B. K. and Berg, P. 2011. Response to selection and genotype-environment interaction in mink (Neovison vison) selected on ad libitum and restricted feeding. Can. J. Anim. Sci. 91: 231–237. Mink were selected for high November weight (AL line) and low feed conversion ratio (FC line) on ad libitum feeding and for high November weight on restricted feeding (RF line). After three generations of selection, the average estimated breeding value for November weight was 533, 326, and 150 g in males and 168, 82, and −85 g in females in the AL, RF, and FC lines. The breeding value for feed conversion ratio was −1.39, −0.84 and −0.68 kg feed kg−1 gain in males and −0.39, −0.31 and −0.23 kg feed kg−1 gain in females in the selection lines. In generation 4, the AL, RF and FC lines were tested on both ad libitum and restricted feeding. The estimated breeding value for November weight in males in the AL line (533 g) was significantly greater than that in the RF line (384 g) on ad libitum feeding. The corresponding values on restricted feeding were 297 and 326 g, respectively, which were not significantly different. This indicates genotype×environment interaction. In the AL line, selection improved feed conversion ratio by increased appetite. In the RF line, it was improved by increased feed utilization. Environmental sensitivity in males, estimated from breeding values for November weight was 236 g in the AL line and 58 g in the RF line suggesting that the RF line was more robust to changes in feeding conditions. A smaller litter size in the AL line (4.1) than in the RF line (5.6) indicates that selection for large weight affects reproduction.

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

1970 ◽  
Vol 37 (2) ◽  
pp. 89-98 ◽  
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

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

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.

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

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.

scholarly journals Effects of Diet Protein Level on Growing-Finishing Pig Performance in a Tropical Environment

1969 ◽  
Vol 62 (3) ◽  
pp. 273-282
Author(s):  
J. Le Dividich ◽  
I. Canope
Keyword(s):  
Growth Performance ◽  
Climatic Conditions ◽  
Conversion Ratio ◽  
Growing Pigs ◽  
Feed Conversion Ratio ◽  
Optimum Level ◽  
Finishing Pigs ◽  
Feed Conversion ◽  
Large White ◽  
Pig Performance

The effect of increasing the dietary crude protein (CP) level on the growth performance and carcass characteristics of Large White pigs reared in Guadeloupe under tropical climatic conditions was determined. Test animals included 32 females and 32 barrows, each weighing about 24 kg initially. They were individually fed one of four test diets based on corn and soybean-oil meal containing 12, 16, 20, and 24% CP, respectively. The 12 and 16% CP diets were supplemented with synthetic L-lysine hydrochloride. The animals were slaughtered at 95 kg liveweight. On the basis of maximum daily gain and minimum feed conversion ratio, the best level of CP among the various levels compared was 16% for the growing pigs (from 24 to 60 kg liveweight) and 12% for the finishing pigs (from 60 kg to 95 kg liveweight). There was no significant effect of sex on growth performance, but the feed conversion ratio of the finishing females was 8% better than that of the barrows. As the dietary CP level increased, dressing percentage and backfat thickness decreased linearly (P < 0.05). Females were significantly leaner (P < 0.05) than barrows. Further work is needed to determine the optimum level of CP for finishing pigs.

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

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.

Tryptophane requirements of pigs between 28 and 56 days of age

1981 ◽  
Vol 32 (5) ◽  
pp. 845 ◽  
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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