Effects of various proportions of wheat, bran or pollard in sorghum grain fattening diets on liveweight gain, feed efficiency and carcase composition of Hereford and Hereford × Santa Gertrudis cattle

1978 ◽  
Vol 18 (93) ◽  
pp. 469
Author(s):  
RJW Gartner

A 3 x 2 x 2 factorial design was used to examine the wheat by-products pollard and bran as a replacement in all-sorghum grain feedlot diets. The by-products replaced either 10, 30 or 50 per cent of the sorghum. Fourteen groups each of five Hereford steers of a mean initial shrunk liveweight of 251.5 � S.E. 0.16 kg and seven groups each of five Santa Gertrudis x Hereford cross bullocks of 391.7 � 0.16 kg were used. They were slaughtered at a mean final shrunk liveweight of 407.0 � 3.54 and 534.5 � 5.04 kg respectively. Production results from cattle receiving 50 per cent by-products were significantly inferior to lower levels of by-product. There were no significant differences between 10 and 30 per cent by-product. Cattle receiving pollard performed significantly better than those receiving bran. The growth rate of the Hereford steers of 1.24 kg day-1 was inferior (P < 0.01 ) to that of 1.41 for the Santa Gertrudis x Hereford bullocks, but the estimated gain in carcase weight of 0.75 kg day-1 was the same. The feed conversion ratio per unit of carcase weight gain favoured the Hereford steers (9.91 vs. 11.95; P < 0.01), but the feed conversion ratio per unit of liveweight gain was not significantly different (6.29 vs. 6.06). The total body fat figures were comparable for steers and bullocks -(mean 20.4 per cent). Both the percentage total yield of saleable meat and the percentage yield from the hindquarter were significantly greater (P < 0.01) in the Santa Gertrudis x Hereford cross bullocks (71.4 vs. 69.5 and 36.8 vs. 35.5 respectively).

2020 ◽  
Vol 18 (1) ◽  
pp. 77-89
Author(s):  
J.N. Ingweye ◽  
J. Mfon ◽  
G.A. Kalio ◽  
F.I. Ologbose

Performance and organoleptic indices of rabbits fed plantain, oil palm and calopogonium leaves was assessed using 48, eight weeks old bucks. They were allotted to four groups of 12 animals and three replicates of four animals each. Group A (control) was fed calopogonium leaf while groups B, C, and D were fed plantain leaf, oil palm leaf, and 50% oil palm + 50% plantain leaves, respectively. Animals consumed fixed amount of commercial pellets while forages and water were given ad libitum. Completely randomized design, one-way analysis of variance was used. Proximate analysis of pellets and forages as well as feed intake, weight gain and feed conversion ratio were assessed. At the end of the experiment, meat from one rabbit per treatment was used for sensory evaluation by 20 semi-trained panelists using 7-point hedonic scale. Data were analyzed using SPSS software. Significant means were separated using Least Significant Difference. Crude protein, crude fibre, ether extract, nitrogen free extract and ash contents of the leaves ranged from 25.11±1.50 (calopogonium) to 4.90±0.92 (oil palm), 38.40±2.12 (oil palm) to 15.38±0.07 (plantain), 9.71±0.01 (plantain) to 2.30±0.01 (oil palm), 47.80±0.56 (oil palm) to 32.27±0.02 (calopogonium) and 11.93±0.02 (plantain) to 2.99±0.01 (oil palm), respectively. Groups A and B had the highest (p<0.05) final weight and weight gains while groups A, B and C had the highest (p<0.05) forage intake. Feed conversion ratios of groups A and B were better (lower) than others. Forages had no effect on meat colour and texture. Groups B and D meats tasted better than others. Group D meat aroma was better than those fed single forages. Meats from groups C and D were the juiciest while meats from groups A, C and D were the most acceptable. Consideration of final weights, weight gains, feed conversion ratio and taste of meat would require that plantain leaves be used to feed meat rabbits. Keywords: Organoleptic indices, Dry season feeding, Forage


1977 ◽  
Vol 17 (85) ◽  
pp. 214 ◽  
Author(s):  
RJW Gartner ◽  
PK O'Rourke

A 23 factorial design was used to examine the effects of the following treatments on the productivity of steers fed in yards on an all-sorghum grain ration : nil vs. 70 mg chlortetracycline head-1 day-1; nil vs. 3 per cent dried molasses distillers solubles; nil vs. 36 mg implant of Zeranol. An additional treatment eompared zinc bacitracin with chlortetracycline. Eighteen groups each of five Hereford steers of a mean initial shrunk liveweight of 273.5 � SE 1.00 kg were used. They were slaughtered at a mean final shrunk liveweight of 399.8 � 2.97 kg. Mean results were: liveweight gain 1 .17 kg day-1, carcase weight gain 0.69 kg day-1, DM feed intake 6.91 kg day-1, feed conversion ratio 6.0. Feeding chlortetracycline resulted in increased carcase weight gain, an improved feed conversion ratio and a reduction in the number of liver abscesses. Regarding productivity, zinc bacitracin was not significantly different from chlortetracycline but it had no effect on reducing liver abscesses. Adding dried molasses distillers solubles caused a decrease in live- and carcase weight gain and an inferior feed conversion ratio. The anabolic implant Zeranol resulted in increased live- and carcase weight gain, increased DM feed intake but no significant differences in feed conversion ratio. The treatments had no effect on eye muscle area or muscle percentage of the carcases. Dried molasses distillers solubles was associated with a lower fat percentage (1 9.5 vs. 20.8 � 0.43; P <0.05). The rationsbsed resulted in an acetic to propionic ratio in ruminal fluid of 0.44 :1. There were no interactions and the usefulness of chlortetracycline and Zeranol and the poorer production using molasses distillers solubles in all-grain diets are discussed.


2021 ◽  
Vol 22 (1) ◽  
pp. 37-43
Author(s):  
B. I. OKON ◽  
B. K. OGUNMODEDE

Broiler chickens were fed varying levels of Palm Kernel Cake (PKC), fishmeal and dried Periwinkle flesh. The use of isocaloric and isonitrogenous rations showed that feeding of 6% periwinkle flesh or 2% fishmeal along with 25% PKC significantly improved live weight, (P<0.05) weight gain and feed conversion ratio. The two groups of birds fed these rations performed better than those fed either 15% PKC with 2% fishmeal or 25% PKC along with a mixture of 2.5% periwinkle flesh and 1% fishmeal.


2021 ◽  
Vol 8 (11) ◽  
pp. 284
Author(s):  
Mutyarsih Oryza.S ◽  
Sawitree Wongtangtintharn ◽  
Bundit Tengjaroenkul ◽  
Anusorn Cherdthong ◽  
Sirisak Tanpong ◽  
...  

This study was conducted with Thai broiler chicken (KKU 1) to investigate the effect of citric acid by-products from rice (CABR) on growth performance and villi histology. A total of 192 broiler chicks were subject to three dietary treatments, including 0% CABR, 3% and 6% of dry matter. Body weight gains, feed intake, feed conversion ratio, survival rate, and production index (body weight gain, feed intake, feed conversion ratio, survival rates, and productive index, respectively) were considered for growth performance evaluation. Villi height (µm), crypt depth (µm), and villi: crypt ratio were recorded for the villi histological measurement. The performance did not show a significant effect when compared with the control group during at ages ranging from 1 to 56 days. Villi histology indicate a significant effect on villi height (µm), crypt depth (µm), and villi: crypt of broiler chicks compared with the control group. Also, the use of 3% CABR caused a reduction microbial contamination in chicken fecal matter. In conclusion, supplementation of CABR had no negative effects on growth performance of Thai broiler chicken (KKU 1). Also, the addition of 3% CABR to the feed might help reduce fecal microbial contamination and affect the villi histology of Thai broiler chickens (KKU 1).


1970 ◽  
Vol 4 (2) ◽  
pp. 1-12
Author(s):  
Widanarni Widanarni ◽  
Alit Brilliant ◽  
Sukenda Sukenda

This study aimed to evaluate the effectiveness of fresh culture product and microencapsulated Bacillus NP5 for the growth performance and immune response of common carp infected by Aeromonas hydrophilla. The 5.09 ± 0.01g common carps were reared in aquarium and fed 3 times a day for 30 days. The dose of probiotic added to feed was 1%. The treatments in this study were positive and negative control (K+ and K-; without probiotic addition), the addition of fresh culture probiotic (A), and the addition of microencapsulated probiotic (B). Each treatment was repeated in 3 replications. On day 31, the fish of K+, A, and B were injected by 0.1mL (107cfu/mL) A. Hydrophilla. While the fish of K- were injected by phosphate buffer saline (PBS). The post-infection observation was carried out for 14 days. Treatment B showed the better results which were 96% survival rate, 2.66% of daily grown rate, 1.65 of feed conversion ratio, total bacteria in the intestine and immune response which were better than control.Keywords : Bacillus NP5, fresh culture, microencapsulated, Aeromonas hydrohilla, common carp 


1970 ◽  
Vol 2 (2) ◽  
Author(s):  
Iwan Iwan

The aim of this study was to determine the effect of feed media on feed intake, average daily gain, and feed conversion ratio. The research method used in this study is the experimental method, which is the type of research used to find the effect of certain treatment against others in controlled conditions. This research was conducted on poultry breeding farm at Company Farm. The division was located in Pembagian village, Tanjung Bintang Subdistrict, South Lampung Regency. This study was carried out for 18 days from broiler aged 0 to 18 days. Method of data collection used in this research using instrument that is observation sheet to get feed intake, average daily gain (ADG), and total weight. The data obtained were analyzed by using independent sample t-test test with SPSS version 17.00 software. The result showed that feed media used had a significant effect on feed conversion, but no significant effect on feed intake and average daily gain (ADG). The feed conversion in broiler maintained with Baby Chick Feeder (BCF) was better than Chick Feeder Tray (CFT). Feed intake and average daily gain (ADG) of broiler chickens maintained with Baby Chick Feeder (BCF) was similar to feed intake and average daily gain (ADG) of broiler maintained with Chick Feeder Tray (CFT). Keywords: Average Daily Gain, Baby Chick Feeder, Chick Feeder Tray, Feed Intake, Feed Conversion Ratio


2018 ◽  
Vol 1 (29) ◽  
pp. 72-81
Author(s):  
Hop Van Nguyen ◽  
Tinh Huu Nguyen ◽  
Hoa Van Tran ◽  
Kinh Van La

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


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

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.


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