Dietary L-arginine supplement alleviates hepatic heat stress and improves feed conversion ratio of Pekin ducks exposed to high environmental temperature

2014 ◽  
Vol 98 (6) ◽  
pp. 1124-1131 ◽  
Author(s):  
W. Zhu ◽  
W. Jiang ◽  
L. Y. Wu
Keyword(s):  
Heat Stress ◽  
Environmental Temperature ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Pekin Ducks ◽  
High Environmental Temperature

Performance of broilers and layers supplemented with Moringa stenopetala leaf meal under hot humid tropical conditions

2020 ◽  
Vol 60 (17) ◽  
pp. 1987
Author(s):  
Metekia Tamiru ◽  
Shiferaw Ashagrie ◽  
Ashraf Alkhtib ◽  
Minyehun Getachew ◽  
Solomon Demeke ◽  
...  
Keyword(s):  
Heat Stress ◽  
Egg Production ◽  
Egg Quality ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Moringa Stenopetala ◽  
Meat Weight ◽  
Leaf Meal ◽  
Tropical Conditions

Context Heat stress poses a major limit to poultry production. Moringa stenopetala leaf meal (MSL) could be a promising feed additive for poultry raised under heat stress, as it is rich in antioxidants. Aims To determine the effect of (MSL) supplementation on the production and quality of broilers under heat-stress conditions. Methods In the broiler performance trial, 156 1-day old Cobb 500 broilers were assigned to four groups, with each containing three replicates of 13 chicks. For the egg production trial, 108 Bovan Brown layers aged 20 weeks were allocated to four groups, with each containing three replicates of nine hens. The four groups of broiler and layer chicken were supplemented with MSL at a level of 0% (control), 1% (MSL1), 1.5% (MSL1.5) and 2% (MSL2). Relative humidity, and minimum and maximum temperatures were 82%, 13°C and 23°C respectively. The effects of MSL supplementation on growth performance, characteristics of digestive organs, carcass traits, egg production and egg quality were analysed with one-way ANOVA. Key results Moringa stenopetala-leaf supplementation at a level up to 2% (MSL2) did not significantly affect feed intake, weight gain or feed conversion ratio of the birds. Supplemented broilers had a significantly longer large intestine (24% for MSL1, 37% for MSL1.5 and 49% for MSL2) and a heavier pancreas (82% for MSL1, 67% for MSL1.5, and 57% for MSL2) than did the control broilers. Hot and cold carcass weights, dressing yield, dressing percentage, breast-meat weight, drumstick and thigh-meat weights, wing-meat weight, back weight and meat pH were not significantly affected by MSL supplementation. Ash content of meat of the MSL2-fed birds was significantly higher than that of the control birds (3.51% vs 2.74% respectively). Egg production, feed conversion ratio and interior and exterior egg-quality parameters were not significantly affected by MSL supplementation. Intensity of yolk colour was significantly and linearly enhanced due to MSL supplementation (by ~5–8 times compared with the control). Conclusions Supplementation with MSL at a level up to 2% improved yolk colour of Bovan Brown layer eggs, with no effect on meat and egg production. Implications Yolk colour of eggs of layers raised under heat stress can be improved by MSL supplementation at 1%, with there being a minimum increase in the diet cost.

scholarly journals Effect of Heat Stress on Body Weight Gain, Heterophile-Lymphocite Ratio and Body Temperature in Broiler

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Sugito S ◽  
Mira Delima
Keyword(s):  
Body Weight ◽  
Heat Stress ◽  
Weight Gain ◽  
Body Temperature ◽  
Broiler Chicken ◽  
Body Weight Gain ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Reduced Body

Increasing in ambient temperature inside the cage could lead to heat stress in broilers. This research was conducted to find out effects of heat stress on body weight gain, heterophile-lymphocite ratio and body temperature in chicken broiler. Twenty broilers aged 20 days (strain Cobb) were randomly divided into 2 groups. The first group was treated with no heat stress, the second one was caged in 33±1 0C temperature for 4 hours per day for 14 days. The results indicated that heat stress reduced body weight gain, increased body temperature, and changed behavior, but no effect on feed conversion ratio (FCR) and heterophile-lymphocyte ratio. It suggested that the heat stress caused detrimental effects on broiler chicken.

Genomic divergence during artificial selection by feed conversion ratio in Pekin ducks

2021 ◽  
pp. 1-9
Author(s):  
Suyun Liang ◽  
Zhanbao Guo ◽  
Jing Tang ◽  
Zhanqing Ji ◽  
Ming Xie ◽  
...  
Keyword(s):  
Artificial Selection ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Pekin Ducks ◽  
Genomic Divergence

scholarly journals Effect of Salix Tetrasperma Roxb. Extract on The Value of Feed Conversion Ratio, Carcass Weight, and Abdominal Fat Content of Broiler Chicken with Heat Stress Condition

2020 ◽  
Vol 151 ◽  
pp. 01034
Author(s):  
Sugito Sugito ◽  
Erdiansyah Rahmi ◽  
Mira Delima ◽  
Nurliana Nurliana ◽  
Rusli Rusli ◽  
...  
Keyword(s):  
Drinking Water ◽  
Heat Stress ◽  
Plant Extract ◽  
Broiler Chickens ◽  
Abdominal Fat ◽  
Fat Content ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Carcass Weight ◽  
Feed Conversion

Heat stress on broiler chickens has an impact on the value of feed conversion ratio (FCR), carcass weight, and abdominal fat content. These impacts can be reduced by administering plant extracts, such as salix plant extract. However, the effect of this plant extract on normal condition is still unknown. This study aimed to determine the effect of salix extract to the value of feed conversion ratio, carcass weight, and abdominal fat content in chickens with heat stress and compared with chickens in normal conditions. This study used 30 samples of 21-day old broiler chickens. This research was conducted using a complete factorial randomized design with 2 x 3 treatment factors and 5 repetitions. The first factor consisted of two treatment conditions, namely heat stress (HS) and no heat stress (nHS), while the second factor consisted of three doses of salix extract treatment, dose 0 (ES-0), 50 (ES-50), and 100 (ES-100) mg/L of drinking water. Heat stress was conducted by increasing the temperature of the cage to 34 ± 1 °C for 4 hours per day. Salix extract was added in drinking water and given 2 hours before the temperature reached 34 ± 1 °C. Chickens without heat stress were kept in the cage at 25 ± 1 °C using air-condition (AC). Data were analyzed using two way ANOVA using SPSS 20. The results showed that administration of salix extract on heat stress chickens did not affect the FCR value and carcass weight, but had a significant effect (P ≤ 0.05) on abdominal fat weight. Fat content in the abdominal was higher (P≤ 0.05) in chickens with heat stress and given salix extract than non heat stress.

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
Keyword(s):  
Growth Performance ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Performance Criteria ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Consumption Ratio ◽  
Pekin Ducks ◽  
Water Feed

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.

scholarly journals Suplementasi Betain untuk Meningkatkan Performa Broiler

2021 ◽  
pp. 162
Author(s):  
Widihantoro Gunawan Putra ◽  
Ida Bagus Komang Ardana ◽  
Hamong Suharsono
Keyword(s):  
Heat Stress ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion

Industri unggas di kota Samarinda dihadapkan dengan tingginya suhu lingkungan yang tinggi  temperatur udara antara 20°C–34°C dengan rata-rata curah hujan per tahun 1980 mm, dengan rata-rata kelembaban udara 85%. Hal tersebut dapat mengganggu keberhasilan usaha broiler. Suhu yang tinggi memicu heat stress yang dapat mengganggu pertumbuhan ayam broiler yang berpengaruh terhadap penurunan berat badan, meningkatkan nilai Feed Conversion Ratio (FCR) dan menurunkan nilai Index Performance (IP). Penelitian ini bertujuan untuk mengetahui pengaruh pemberian betain dengan dosis berbeda melalui air minum dalam meningkatkan performa broiler meliputi berat badan, FCR dan IP. Sampel penelitian ini berjumlah 1.200 ekor broiler betina yang berumur 7 hari dengan penghitungan hasil menggunakan analisis statistik Rancangan Acak Lengkap (RAL) dengan 4 perlakuan, dosis yang digunakan yaitu; P0 (0,0 g/L), P1 (0,5 g/L), P2 (1,0 g/L) dan P3 (2,0 g/L). Hasil analisis statitik penelitian menunjukkan penambahan betain berpengaruh nyata (P<0,05) terhadap peningkatan berat badan rata-rata terbaik pada perlakuan P2 (1,0 g/L) 1,870 ± 0,009d,  nilai FCR terbaik pada perlakuan P2 (1,0 g/L) 1,500 ± 0,089a dan nilai IP terbaik pada perlakuan P2 (1,0 g/L) 368,333 ± 4,033d. Betain dapat meningkatkan berat badan, mengoptimalkan FCR dan meningkatkan IP.

PREDICTION OF DAILY GAIN, BACKFAT THICKNESS AND FEED CONVERSION RATIO AMONG CROSSBRED TERMINAL SIRES BETWEEN PUREBRED DUROC, PIETRAIN, AND LANDRACE BY CBE 4.0 SOFTWARE

2018 ◽  
Vol 1 (29) ◽  
pp. 72-81
Author(s):  
Hop Van Nguyen ◽  
Tinh Huu Nguyen ◽  
Hoa Van Tran ◽  
Kinh Van La
Keyword(s):  
Research And Development ◽  
High Reliability ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Backfat Thickness ◽  
Feed Conversion ◽  
Significant Difference ◽  
Pig Farm ◽  
Development Center ◽  
Daily Gain

The objective of the study is to compare the practical results with the predicted results by Crossbreeding Effects (CBE) software on pig crossbred based on daily gain, backfat thickness and feed conversion ratio. Another purpose of this study is to predict those three traits among some expected hybridization. This research was conducted on pig farm at Binh Thang Research and Development center from 2013 to 2017. In this study, for each pair of purebred Duroc and Pietrain, Duroc and Landrace, Pietrain and Landrace, twelve hybridizations were analyzed, nine unhybridizations were predicted by CBE software. The results showed that there was no significant difference between the predicted and actual data. With some unhybridization crossbred , the predictions showed high reliability (P<0.05). Based on the predicted data of CBE software , some traits of the crossbred animals would not be improved, therefore, it was not necessary to conduct these hybridizations

scholarly journals KAJIAN PEMANFAATAN SEKAM PADI YANG DIFERMENTASI EFFECTIVE MICROORGANISM-4 (EM-4) DISUPLEMENTASI DAUN SIRIH (Piper betle L) TERHADAP PERFORMANS DAN KARKAS ITIK BALI UMUR 22 MINGGU

2018 ◽  
Vol 21 (3) ◽  
pp. 96
Author(s):  
Partama I. B. G. ◽  
T. G. Belawa Yadnya ◽  
A. A. A. S. Trisnadewi ◽  
A. A. P. P. Wibawa ◽  
I. M. Mudita
Keyword(s):  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Piper Betle ◽  
Feed Conversion ◽  
Effective Microorganism

Penelitian bertujuan untuk mengetahui pengaruh pemanfaatan sekam padi difermentasi larutan EffectiveMicroorganism-4 (EM-4) dalam ransum disuplementasi daun sirih (Piper betle L.) terhadap performans dan karkasitik bali betina, umur 22 minggu. Penelitian menggunakan rancangan acak lengkap dengan lima perlakuan yaituransum tanpa sekam padi (A), ransum mengandung 12,50% sekam padi (B), ransum mengandung 12,50 % sekampadi difermentasi EM-4 (C), ransum mengandung 12,50% sekam padi dan daun sirih (D), serta ransum 12,50%sekam padi difermentasi EM-4 dan daun sirih (E). Setiap perlakuan terdiri atas empat ulangan dan setiap ulanganberisi lima ekor ituik bali betina, Variabel yang diamati konsumsi ransum, konsumsi antioksidan ransum, bobotbadan akhir, pertambahan bobot badan, feed conversion ratio dan karkas meliputi bobot potong, bobot karkas danpersentase karkas. Hasil penelitian menunjukkan bahwa pemberian 12,50 % sekam padi difermentasi EM-4 sertadisuplementasi daun sirih tidak berpengaruh terhadap konsumsi ransum(P>0,05), namun dapat menghasilkanbobot badan akhir, pertambahan bobot badan lebih tinggi (P<0,05), serta FCR yang lebih rendah (P<0,05) sertabobot karkas dan persentase karkas yang lebih baik daripada perlakuan yang lainnya. Dapat disimpulkan bahwapemberian sekam padi yang difermentasi EM-4 serta disuplementasi daun sirih dapat memperbaiki performansdan karkas yang lebih baik daripada perlakuan yang lainnya.

scholarly journals Effects of Different Swimming Pool Conditions and Floor Types on Growth Performance and Footpad Dermatitis in Indoor-Reared White Roman Geese

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1705
Author(s):  
Shih-Chieh Liao ◽  
Pei-Xuan Lu ◽  
Shih-Yi Shen ◽  
Chih-Chang Hsiao ◽  
Ching-Yi Lien ◽  
...  
Keyword(s):  
Growth Performance ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Swimming Pool ◽  
Poultry Production ◽  
Performance Measurements ◽  
Feed Conversion ◽  
Plantar Surface ◽  
Rearing Conditions ◽  
Foot Disease

Footpad dermatitis (FPD) is a major foot disease in modern poultry production, and it affects both poultry health and animal welfare. It refers to inflammation and necrotizing lesions on the plantar surface of the footpads and toes. We investigated the effects of providing a swimming pool and different floor types on growth performance and FPD score in indoor-reared White Roman geese. Forty-eight male and 48 female White Roman geese were randomly allocated to pens with or without a swimming pool and with either mud or perforated plastic floor and reared from 15 to 84 days of age. Growth performance measurements included feed intake (FI), weight gain (WG), and feed conversion ratio (FCR). FI, WG, and FCR were significantly decreased at various growth periods in geese provided with a pool. Lower WG and bodyweight for the perforated plastic floor group were found at 15–28 and 28 days of age, respectively. The geese reared on the perforated plastic floors without a pool had higher FPD scores at 70 and 84 days of age than those with other rearing conditions. A higher incidence of FPD score 1 was observed in geese raised without a pool. In conclusion, providing a pool can improve footpad health in indoor-reared White Roman geese but may not benefit growth performance.

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