PSI-16 Estimation of pigs live body weight from digital images using reference objects

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 276-277
Author(s):  
Zhuoyi Wang ◽  
Dan Tulpan ◽  
Renee Bergeron
Keyword(s):  
Machine Learning ◽  
Body Weight ◽  
Digital Images ◽  
Animal Health ◽  
Current Approach ◽  
Reference Object ◽  
Feed Conversion ◽  
Live Body Weight ◽  
Data Points ◽  
Positive Correlations

Abstract The live body weight (LBW) is an important parameter providing guidance for estimation of growth and feed conversion efficiency, body condition, presence of disease, and management of housing, nutrition and animal health in different life stages of livestock. This research study explores the possibility of developing a semi-automatic analytic system that estimates the LBW of pigs by applying machine learning methods that use approximated biometric measurements extracted from digital images acquired with consumer-level cameras in the presence of a reference object. Images corresponding to 12 pigs were sampled on two different dates 1 month apart and acquired using a consumer-level Motorola X4 mobile phone. The best 3 images for each pig were selected for each time point. Six measurements were extracted from each image using ImageJ. A total of 72 data points were analyzed using RStudio, and the generated correlation plot confirmed the positive correlations between the 6 predictors and LBW. Five machine learning (ML) methods were used to model the dependency between the measured parameters and LBW using WEKA. The Random Forest model outperformed all the other models and predicted LBW with the highest prediction accuracy (97%) and the lowest prediction error (MAE = 6.54), which could represent a good candidate for further studies. In conclusion, the semi-automatic image-based system is a promising approach combining machine learning, digital image analysis and manual scale extraction with the aid of reference objects of known size for accurate pig LBW estimation. The next stage of this study aims to integrate automatic image acquisition and image processing solutions in the current approach. This novel system will be cost- and time-efficient, and it can contribute to the development of intelligent solutions for scientific research and enhancing animal productivity in commercial pig farms.

scholarly journals Effects of including autolyzed yeast in the finishing of feedlot steers

2021 ◽  
Vol 42 (4) ◽  
pp. 2471-2488
Author(s):  
Giovanna Bobato Pontarolo ◽  
◽  
Mikael Neumann ◽  
Fernando Braga Cristo ◽  
Edelmir Silvio Stadler Júnior ◽  
...  
Keyword(s):  
Body Weight ◽  
Production Efficiency ◽  
Body Weight Gain ◽  
Control Diet ◽  
Animal Health ◽  
Ingestive Behavior ◽  
Control Group ◽  
Apparent Digestibility ◽  
Feed Conversion ◽  
Feedlot Steers

Functional additives, such as autolyzed yeasts, have been used to achieve greater production efficiency and animal health. These compounds are also alternatives to the use of performance-enhancing antimicrobials. The objective was to evaluate the productive performance, ingestive behavior, apparent digestibility of feed DM and the carcass characteristics of beef steers finished in feedlot receiving autolyzed yeasts in the diet. The experimental design was randomized blocks, consisting of three treatments and six repetitions, where each repetition was represented by a stall with two animals. 36 bulls, ½ Angus × ½ Nelore blood, from the same herd, with an average age of 11 months and an average body weight of ± 330 kg were used.The treatments were as follows: CON - yeast-free diet; Y4 - yeast diet (4 g animal day-1) and Y7 - yeast diet (7 g animal day-1). The product used is a functional ingredient containing the yeast Saccharomyces cerevisiae. The inclusion of autolyzed yeasts resulted in greater daily body weight gain and better feed conversion in the initial feedlot phase. The apparent digestibility of DM of diets containing autolyzed yeast was superior to the control diet, and its use did not interfere with the animal ingestive behavior. Supplementation with autolyzed yeasts at the inclusion level of 4 g day-1 promoted better results in the finishing of feedlot steers, and that the supplemented groups (4 g animal day-1 and 7 g animal day-1) achieved the same degree of carcass finishing, higher than the control group.

Influence of Dietary Multiple Phase Feeding on Growth Performance of Commercial Broiler Chicken

2020 ◽  
Author(s):  
Karan Tikate ◽  
M. Wade ◽  
A. S. Ranade ◽  
V. R. Patodkar ◽  
V. S. Dhaygude ◽  
...  
Keyword(s):  
Body Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Control Group ◽  
Feed Conversion ◽  
Multiple Phase ◽  
Live Body Weight ◽  
Commercial Broiler ◽  
Group A ◽  
Group B

The experimental trial was carried out to study the effect of multiple phase feeding on the growth performances and the economics of broiler production for a period of six weeks. Day-old chicks (n=160) were divided into two treatment groups, each containing 80 chicks with four replicates in each treatment. The birds of the control group (A) were fed prestarter, starter and finisher diets as per nutrient requirement of commercial broiler strain used in the experiment and the multiple phase feeding was followed in group-B by changing the nutrient densities (Energy, Crude protein, lysine and methionine) of diet per week. The different performance parameters were studied such as live body weight, gain in live body weight, feed conversion ratio and feed consumption at weekly interval. Mortality was recorded daily and the economics was calculated at the end of experiment. The results of experiment showed that the body weight and weight gain of broilers of group-B was significantly higher (p less than 0.05) than that of broilers of group-A during first, second, fifth and sixth week of age and also during overall duration of the experiment. Further, the feed intake of broilers of group-B was significantly higher (p less than 0.05) than that of group-A during second, fifth and sixth weeks of age and also during the overall feed intake of broilers. The Feed Conversion Ratio of broilers of group-B was significantly better (p less than 0.05) than that of group-A during fifth week and also during the overall performance. The multiple phase feeding has not put any adverse effect on percentage mortality of broilers. However, broilers fed with the multiple phase feeding showed higher net profit per bird and also per kg of body weight as compared to the broilers of control group (A).

scholarly journals Impacts of Green Coffee Powder Supplementation on Growth Performance, Carcass Characteristics, Blood Indices, Meat Quality and Gut Microbial Load in Broilers

Agriculture ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 457
Author(s):  
Elwy A. Ashour ◽  
Mohamed E. Abd El-Hack ◽  
Manal E. Shafi ◽  
Wed Y. Alghamdi ◽  
Ayman E. Taha ◽  
...  
Keyword(s):  
Body Weight ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Bacterial Count ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Green Coffee ◽  
Feed Conversion ◽  
Live Body Weight ◽  
Coffee Powder

This work investigated the effect of dietary green coffee powder (GCP) on the growth, body characteristics, antioxidant status, serum metabolites, and meat quality of 308 Ross broiler chickens. A total of 180 non-sexed seven-day old chicks were randomly distributed into three experimental groups. The untreated group received a basal diet (control), while the second and third groups were fed the original diet fortified with 1.25 and 2.5 g GCP/kg, respectively, for four weeks. Results revealed an improvement (p < 0.05) in live body weight in the group fed 2.5 g/kg GCP at five weeks of age compared to the other groups. Broiler Chicks fed the 1.25 g/kg GCP diet showed a more significant decrease in live body weight than the control group at five weeks of age. The GCP supplementation at level 2.5 g/kg GCP enhanced feed conversion ratio at 3–5 and 1–5 weeks of age. Dietary treatments did not affect (p > 0.05) carcass, dressing, and giblets percentages. Different levels of GCP significantly affected the liver, abdominal fat, intestinal length, and lymphoid organs percentages. The changes in serum blood traits and serum oxidative stress markers were not significant among the control and the treated groups. With the increment levels of GCP, results showed elevated values of meat pH, lightness (L*), and redness (a*), as well as a significant decrease in its yellowness (b*). Broilers fed 2.5 g/kg GCP diet showed a significant reduction in the total bacterial count, total yeasts and molds count, Escherichia coli, Enterococcus spp., and Salmonella spp., as well as increasing counts of lactic acid bacteria. The dietary GCP 2.5 g/kg diet supplementation could be used to decrease the pathogenic microorganisms’ populations in the broiler’s gut. The present experiment has shown that in unsexed broiler chickens, green coffee powder at level of 2.5 g/kg improved the live body weight and feed conversion ratio and decreased the pathogenic bacterial count in the gut.

Effect of Aqueous Nanosuspensions of Clay Minerals on Broilers' Performance and Some Selected Antibody Titers

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Khaled N. Elshuraydeh ◽  
Nafez A. Al-Beitawi ◽  
Mohammad A. Al-Faqieh
Keyword(s):  
Body Weight ◽  
Clay Minerals ◽  
Antibody Titer ◽  
Body Weight Gain ◽  
Tap Water ◽  
Feed Conversion ◽  
Infectious Bronchitis ◽  
Live Body Weight ◽  
Bursal Disease ◽  
Antibody Titers

The effect of using different concentrations of aqueous nanosuspensions of clay minerals (1%, 1.5%, and 2%) offered at different periods of time (one time per one or two weeks) compared with tap-water with and without antibiotics on growth performance and some selected antibody titer was studied. The experiment lasted from 1 to 36 days of age. The statistical findings of the experiment prove that aqueous nanosuspension 1% offered one time per two weeks significantly improved feed conversion ratio (FCR). Meanwhile, aqueous nanosuspension 2% offered one time per two weeks significantly gave the same effect on live body weight (LBW) and body weight gain (BWG) as did antibiotics. Concerning the findings that pertain to immunity, antibody titer against the most infectious diseases [Newcastle (ND), infectious bronchitis (IB), and infectious bursal disease (IBD)] were significantly improved by offering aqueous nanosuspension 1.5% offered one time per one and two weeks, and aqueous nanosuspension 1% offered one time per one week, respectively.

scholarly journals Effect of Different Levels of Local Concentrated Protein Manufactured from Slaughterhouse Wastes on some productive Traits of Broiler

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Zaman K.F. Al-Mhsenawi ◽  
Majid H.A. Alasadi ◽  
Qutiba J.G. Al khfaji
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Broiler Chickens ◽  
Consumption Rate ◽  
Conversion Factor ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Synthetic Protein ◽  
Live Body Weight ◽  
Productive Traits

"The current study was conducted to find out the effect of using locally manufactured protein concentrate on some productive traits of broilers (weekly body weight rate, weekly weight gain rate, weekly feed consumption rate, food conversion factor) used in the experiment 225 broiler chickens (female) of the age of one day (breed Ross-308) Chicks were distributed randomly into five treatments, with three replications (15 chicks / replicate). The trial parameters were as follows: The first treatment (control T1) provided for the chicks with a diet containing 4% imported protein, the second treatment (T2) for the chicks with a diet containing 2% imported protein + 2% manufactured protein, the third treatment (T3) provided for the chicks with a diet The fourth treatment contains 4% synthetic protein, the fourth treatment (T4) is provided for the chicks with a diet containing 6% manufactured protein and the fifth treatment (T5) using a diet containing 8% manufactured protein. The results showed the absence of significant differences between the trial parameters in all the studied traits, which included live body weight, weight gain, feed consumption rate and feed conversion factor."

scholarly journals Effects of garlic extract on growth, carcass characteristics and haematological parameters in broilers

2016 ◽  
Vol 32 (1) ◽  
pp. 1-6 ◽  
Author(s):  
ZA Noman ◽  
MM Hasan ◽  
S Talukder ◽  
YA Sarker ◽  
TK Paul ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Blood Parameters ◽  
Positive Control ◽  
Negative Control ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Live Body Weight ◽  
Significant Difference

Garlic (Allium sativum) is a popular spice in Bangladesh. Its beneficial effect as growth promoter in poultry has not been studied. Broilers were grouped into four: T1 (1% garlic), T2 (2% garlic), Pc (ciprofloxacin positive control) and Nc (negative control). Aqueous extract of garlic (1% and 2%) was administered with drinking water. T1 group (1%) showed better performance with regard to body weight gain than T2 (2%), positive and negative control. In T1 group, significant difference was observed in terms of live body weight gain and dressed weight but no significant differences in feed conversion ratio, offal’s weight and in blood parameters. It is suggested that 1% aqueous extraction of garlic improves growth and carcass qualities in Broilers.Bangl. vet. 2015. Vol. 32, No. 1, 1-6

scholarly journals Effects of the Hydrolysable Oak Tannins on the Quail Performance

2016 ◽  
Vol 4 (12) ◽  
pp. 1085
Author(s):  
Mesut Karaman ◽  
Trefa Kamal M. Azize ◽  
Mehmet Sait Ekinci
Keyword(s):  
Body Weight ◽  
Mortality Rate ◽  
Conversion Efficiency ◽  
Body Weight Gain ◽  
Control Diet ◽  
Experimental Period ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Live Body Weight ◽  
Different Levels

In the present study effects of different levels of hydrolyzed oak tannin on Japanese quail, live body weight and live body weight gain, food intake, food conversion efficiency and mortality rate were investigated. Therefore, a total of 240 quails were weighed and divided into 4 treatment groups each with 3 replicates containing 20 birds and reared in flat for 42 days as experimental period. While one of the groups was fed control diet with no additives (0% tannin A), other groups were fed with the different percentages of tannin on their diets, which are 0.5% (B), 1.0% (C), 1.5% (D) respectively. It has been observed that Japanese quails that fed the oak tannin containing diet had slower growth rate and poorer feed conversion efficiency and high mortality rate than birds fed with a tannin-free diet.

scholarly journals Effect of Replacement of Maize with Dry Bakery Waste in Broiler Diet

2017 ◽  
Vol 13 (02) ◽  
Author(s):  
V. Epao ◽  
B. N. Ramteke ◽  
G. M. Gadegaonkar
Keyword(s):  
Body Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Live Body Weight ◽  
Net Profit ◽  
Average Serum ◽  
Total Gain

An experiment was conducted on 240 day-old broiler chicks for a period of six weeks in which the chicks were randomly divided into four equal groups viz Control (C), T1, T2 and T3 comprising of 60 birds each with three replicates of 20 birds in each group.The birds from group C received Corn- Soybean meal based diet, the birds from group T1, T2 and T3 received diet in which maize was replaced with dry bakery waste (DBW) at 20, 40 and 60% level, respectively. The final live body weight, total gain in weight, feed consumption, feed conversion ratio, average dressing percentage, giblet weight, serum albumin, globulin, cholesterol, triglycerides, LDL and VLDL values for group C, T1, T2 and T3were comparable, however, average serum HDL values were significantly lower in T1 and T2 than Control. Highest net profit per kg of bird were recorded in Group T3 .

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