PROPORTIONS OF MAJOR BOVINE TISSUES AS INFLUENCED BY RATIONS BASED ON BARLEY OR OATS

1970 ◽  
Vol 50 (2) ◽  
pp. 253-258 ◽  
Author(s):  
H. MUKHOTY ◽  
R. T. BERG ◽  
C. M. GRIEVE
Keyword(s):  
Conversion Efficiency ◽  
Feed Conversion ◽  
Experimental Diet ◽  
Feed Conversion Efficiency ◽  
Digestible Energy ◽  
Bull Calves ◽  
Significant Difference ◽  
Maintenance Requirements

The experiment was conducted to study the effect of oats and barley in high-grain rations on performance of calves and on totals and proportions of muscle, bone and fat in the carcasses. Each experimental diet was fed to a group of four Jersey bull calves. There was no significant difference between the two groups of calves in average daily liveweight gain, and very little difference in feed conversion efficiency and daily feed consumption.On the basis of total dissection of one-half of each carcass, calves fed barley contained practically the same amount of lean, similar proportions of bone and more fat (23.6% vs. 14.9%) compared with those fed oats. Barley-fed animals consumed 26.3% more digestible energy over maintenance requirements than oats-fed animals. This resulted in 58.4% more dissectable fat in the carcasses of barley-fed animals.

Consequences of selection for growth and heat resistance on growth, feed conversion efficiency, commercial carcass traits and meat quality of Zebu crossbred cattle

1991 ◽  
Vol 42 (8) ◽  
pp. 1373 ◽  
Author(s):  
HM Burrow ◽  
HM Burrow ◽  
B Gulbransen ◽  
B Gulbransen ◽  
SK Johnson ◽  
...  
Keyword(s):  
Heat Resistance ◽  
Conversion Efficiency ◽  
Carcass Traits ◽  
Subcutaneous Fat ◽  
Carcass Weight ◽  
Control Line ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Significant Difference ◽  
Selection For

Thirty-five steers and 37 heifers were grown at pasture and finished in a feedlot to meet Australian domestic market specifications, i.e. 160-200 kg carcass weight with 5-9 mm subcutaneous fat at the P8 rump site. The animals were from lines that had been selected for either high growth rate to 600 days (UPWT) or for low rectal temperature under conditions of high ambient temperatures (TEMP) and from a control line (CONT). They were slaughtered in six groups at fortnightly intervals when liveweight of individuals was estimated to satisfy market requirements. Animals from the UPWT line were heavier at all ages than animals from the TEMP and CONT lines (P< 0.05) and had higher liveweight gains at pasture (P < 0.01). There was no difference between the lines in liveweight gains in the feedlot. At the same carcass weight, UPM animals had leaner carcasses (P < 0.01) but similar levels of marbling to CONT line animals. TEMP line animals were also leaner than CONT line animals (P < 0.0l ) , but had more marbling (P<0.01). There was no significant difference between lines in feed conversion efficiency. Steers were heavier (P < 0.001) than heifers at all ages, grew faster (P < 0.001) except during the immediate post-castration period, had higher feed intakes (P < 0.05) but better feed conversion efficiencies (P < 0.05), and at the same carcass weight were leaner (P < 0-01) and had less marbling (P < 0.05). Meat colour, cooking loss, ultimate pH and meat tenderness did not differ significantly between lines or sexes. These results are discussed with reference to the use of selection for growth or heat resistance to improve growth and carcass traits of beef herds in tropical areas.

scholarly journals Effect of adding tallow on some production performance of Awassi ewe lambs

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
A Hasan ◽  
M Dahham
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Conversion Efficiency ◽  
Production Performance ◽  
Daily Weight Gain ◽  
Human Consumption ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Animal Fats ◽  
Significant Difference

This experiment was conducted in animal felid/ University of Baghdad/ College of Agriculture/ Animal production from 9/11/2016 until 9/1/2017. Twelve growing Awassi ewes lambs weighted 29.13 ±1.50 kg and 8-10 month old were used in this study, the lambs were divided into three individual groups (4 animals/ group) receive the dietary treatments contain 0.2 and 4% tallow, animals were fed concentrate at 2.5% of body weight, Alfalfa hay was given ad libitum basis as the roughage, The results found that: No significant difference between groups in total and daily concentrate, roughage and total feed intake, However, final body weight not affected by the experimental diets, total and daily weight gain had higher values (p<0.05) in diets containing 2 and 4% tallow, feed conversion efficiency improved significantly (P<0.05) in 4% tallow diet compared to other groups. It can be concluded that added tallow to sheep diets improved some productive performance such as total and daily weight gain, feed conversion efficiency. Excess animal fats from human consumption can be used as an energy source in ruminants feeds. Thus benefiting from excess animal fats from human consumption as a source of energy in ruminants' rations.

scholarly journals Growth performance of Red Chittagong and Holstein crossbred bull calves using growth promoter

1970 ◽  
Vol 8 (1) ◽  
pp. 83-86 ◽  
Author(s):  
MK Sarker ◽  
MR Amin ◽  
M Harun-ur-Rashid ◽  
AKMA Kabir
Keyword(s):  
Growth Performance ◽  
Conversion Efficiency ◽  
Live Weight ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Treatment Groups ◽  
Daily Average ◽  
Net Returns ◽  
Bull Calves

The aim of the study was to evaluate and compare the effect of growth promoter 'Megavit-DB' on growth performance of indigenous Red Chittagong (RC) and Holstein Crossbred (HC) bull calves. For this purpose, six RC and six HC bull calves were assigned into four treatment groups having three calves in each as RCT0 (RC without Megavit-DB), RCT1 (RC with Megavit-DB), HCT0 (HC without Megavit-DB) and HCT1 (HC with Megavit-DB). The daily DM intake of different treatment groups were found almost similar. The daily average live weight gains were 0.27±0.05, 0.36±0.01, 0.36±0.01 and 0.45±0.05 kg/d, feed conversion efficiency were 9.08±0.16, 7.47±1.07, 7.13±1.24 and 6.16±0.27 and the average net returns (Tk.) were 1473.33±87, 2060±76.38, 1910±86.60 and 2776.67±44.10 for RCT0, RCT1, HCT0 and HCT1 treatment groups, respectively. The daily average live weight gain and feed conversion efficiency were significantly (p<0.05) higher in HCT1 than that from RCT1, HCT0 and RCT0. Accordingly, the average net returns were found significantly (p<0.05) higher in HCT1 than RCT1, HCT0 and RCT0. It may be concluded that Megavit-DB may have the potentials to improve growth performance of both HC and RC and may be used in cattle fattening program. Keywords: Growth performance; Red Chittagong; Holstein Crossbred; Megavit-DB DOI: 10.3329/jbau.v8i1.6403J. Bangladesh Agril. Univ. 8(1): 83-86, 2010

scholarly journals Digestive Morphology of Native Pig Supplemented by Different Levels of Fermented Vigna radiata L.

2021 ◽  
Vol 04 (11) ◽  
Author(s):  
Ken N Falculan Ph.D. ◽  
Keyword(s):  
Growth Performance ◽  
Conversion Efficiency ◽  
Intestinal Morphology ◽  
P Value ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Dietary Nutrients ◽  
Treated Sample ◽  
Significant Difference ◽  
Different Levels

Enhancing feed efficiency in converting feed mass into pig body mass is a critical phase for the profit in producing pig. To improve the metabolic utilization of dietary nutrients, it relies heavily on a healthy gut or gastrointestinal tract, and only a healthy digestive can result in better feed digestion and better nutrient absorption. Thus, the study investigates the growth performance, the response of the digestive morphology of native pigs, which treatment will stretch higher output and variations under different levels of fermented mungbean. The experimental research design was employed to determine the response of the three (3) pigs treated with mungbean for 70 days. The growth performance of pigs treated with different levels of fermented mungbean has a total gain weight of 7.50kg for Treatment 1; Treatment 2 is 9.00kg and, Treatment 3 is 6.50kg and is observed no significant difference on the final weight and the total weight with a p-value of > 0. 050; the response on digestive morphology such as small intestine, large intestine, heart, stomach, liver, lungs, esophagus, spleen, and kidney of pigs shows no variations on their length, width, and weight with a p-value of >0.050 under the different level of fermented mungbean; and resulted with high output treated with different level of fermented mungbean is observed on Treatment 2 with a lowest feed conversion efficiency of 3.89 for feeds and 1.39 for mungbean. Treatment 2 has the highest gain weight among the treated sample; the intestinal morphology of pigs was comparable under the three treatments; treatment 2 has the lowest feed conversion efficiency.

UREA AS A NITROGEN SUPPLEMENT IN STARTER FEEDS FOR EARLY WEANED CALVES

1973 ◽  
Vol 53 (2) ◽  
pp. 339-343 ◽  
Author(s):  
K. A. WINTER
Keyword(s):  
Conversion Efficiency ◽  
Soybean Meal ◽  
Economic Advantage ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Holstein Bull ◽  
Bull Calves ◽  
Ad Libitum ◽  
Feed Costs ◽  
Ad Libitum Feeding

Calf starter feeds containing either urea or soybean meal as a source of supplementary nitrogen were evaluated as the sole ration for Holstein bull calves weaned at 5 or 6 wk of age. In two experiments using a total of 56 calves, weight gains of the urea-fed calves (0.72–0.88 kg/day) were similar to or slightly less than the soybean meal-fed calves (0.77–0.90 kg/day). Except for one treatment in experiment 1, intake of the urea-supplemented starters was slightly less than intake of the soybean meal-supplemented starters. Feed conversion efficiency of the urea-supplemented starters was poorer in experiment 1, but comparable with the soybean meal-supplemented starters in experiment 2. The use of urea in the calf starters resulted in reduced feed costs ranging from $3.47 to $4.07 per 100 kg; and reductions in feed costs per 100 kg gain ranged from $9.34 to $12.90. Although animal performance may be slightly reduced by urea supplementation of calf starters, an economic advantage in feed costs was demonstrated with the use of urea when ad libitum feeding was practiced.

scholarly journals Digestive Morphology of Native Pig Supplemented by Different Levels of Fermented Vigna radiata L.

2021 ◽  
Vol 5 (2) ◽  
pp. 378-396
Author(s):  
Ken N Falculan
Keyword(s):  
Growth Performance ◽  
Conversion Efficiency ◽  
Intestinal Morphology ◽  
P Value ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Dietary Nutrients ◽  
Treated Sample ◽  
Significant Difference ◽  
Different Levels

Enhancing feed efficiency in converting feed mass into pig body mass is a critical phase for the profit in producing pig. To improve the metabolic utilization of dietary nutrients, it relies heavily on a healthy gut or gastrointestinal tract, and only a healthy digestive can result in better feed digestion and better nutrient absorption. Thus, the study investigates the growth performance, the response of the digestive morphology of native pigs, which treatment will stretch higher output and variations under different levels of fermented mungbean. The experimental research design was employed to determine the response of the three (3) pigs treated with mungbean for 70 days. The growth performance of pigs treated with different levels of fermented mungbean has a total gain weight of 7.50kg for Treatment 1; Treatment 2 is 9.00kg and, Treatment 3 is 6.50kg and is observed no significant difference on the final weight and the total weight with a p-value of > 0. 050; the response on digestive morphology such as small intestine, large intestine, heart, stomach, liver, lungs, esophagus, spleen, and kidney of pigs shows no variations on their length, width, and weight with a p-value of >0.050 under the different level of fermented mungbean; and resulted with high output treated with different level of fermented mungbean is observed on Treatment 2 with a lowest feed conversion efficiency of 3.89 for feeds and 1.39 for mungbean. Treatment 2 has the highest gain weight among the treated sample; the intestinal morphology of pigs was comparable under the three treatments; treatment 2 has the lowest feed conversion efficiency.

scholarly journals Evolution in Configuration and Productivity of New Zealand Hill Country Sheep and Beef Cattle Systems

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 531
Author(s):  
Januarius Gobilik ◽  
Stephen Todd Morris ◽  
Cory Matthew
Keyword(s):  
New Zealand ◽  
Beef Cattle ◽  
Conversion Efficiency ◽  
Production Systems ◽  
Metabolic Energy ◽  
Meat Production ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Hill Country ◽  
Cattle Systems

Metabolic energy budgeting (MEB) was used to evaluate evolution over 30 years (1980–1981 to 2010–2011) in New Zealand southern North Island ‘hill country’ sheep and beef cattle systems. MEB calculates energy required by animals for body weight maintenance, weight gain or loss, pregnancy, and lactation to estimate the system feed demand and thereby provide a basis for calculating feed conversion efficiency. Historic production systems were reconstructed and modeled using averaged data from industry surveys and data from owners’ diaries of three case-study farms and reviewed for patterns of change over time. The modeling indicated that pasture productivity was 11% lower and herbage harvested was 14% lower in 2010–2011 than in the early 1980s. This productivity decline is attributable to warmer, drier summer weather in recent years. However, primarily through increased lambing percentage, feed conversion efficiency based on industry data improved over the study period from 25 to 19 kg feed consumed per kg lamb weaned, while meat production rose from 137 to 147 kg per ha per year. Similar improvements were observed for the three case farms. The New Zealand MEB model was found effective for analysis of tropical beef production systems in Sabah, Malaysia.

Heterozygous depletion of pik3r1 improves growth and feed conversion efficiency in Gibel carp (Carassius gibelio)

Aquaculture ◽  
2021 ◽  
pp. 737207
Author(s):  
Jianfei Huang ◽  
Chuang Shi ◽  
Yanping Gao ◽  
Jingzhi Su ◽  
Yuqin Shu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Gibel Carp ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Carassius Gibelio

scholarly journals Effect of forage to concentrate ratio and duration of feeding on growth and feed conversion efficiency of male lambs

2018 ◽  
Vol 2 (4) ◽  
pp. 419-427 ◽  
Author(s):  
Noel A Claffey ◽  
Alan G Fahey ◽  
Vasiliki Gkarane ◽  
Aidan P Moloney ◽  
Frank J Monahan ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Carcass Weight ◽  
Feed Conversion ◽  
Fresh Weight ◽  
Viable Option ◽  
Financial Return ◽  
Feed Conversion Efficiency ◽  
Ad Libitum ◽  
The Cost ◽  
Concentrate Inclusion

Abstract Rations (DM basis) for spring-born male lambs consisting of concentrates ad libitum (CON), 50:50 (50% concentrate:50% forage), and forage ad libitum (FORG) were evaluated across feeding periods of three durations (36, 54, and 72 d). Lambs on CON diets were offered ad libitum access to concentrate along with 400 g of fresh weight silage (daily), while 50:50 diets were offered 0.9 and 3.0 kg of concentrate and silage, respectively. Lambs on FORG were offered ad libitum access to 25.5% DM silage. These rations were fed to 99 spring-born male Texel cross Scottish Blackface lambs which were assigned to a 3 × 3 factorial arrangement. Lambs were slaughtered following completion of their respective treatments. Lambs fed CON diets had greater ADG, FCE, and carcass weight (P &lt; 0.001) and carcasses with greater conformation score (P &lt; 0.001) than lambs fed 50:50 or FORG diets. Duration of feeding had no effect on production variables across all three concentrate inclusion levels. It was concluded that the inclusion of concentrates is needed to adequately finish lambs fed indoors. Feeding lamb’s 50:50 diets resulted in modest responses and may be a viable option for finishing lambs or to maintain growth in lambs when the cost of concentrate feed is high relative to the financial return on the lamb meat.

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