Biological and chemical features of Poltava Meat breed pigs bacon depending on genotype

2021 ◽  
pp. 74-80
Author(s):  
N. Garskaya ◽  
L. Peretyatko
Keyword(s):  
Subcutaneous Tissue ◽  
Morphological Structure ◽  
Live Weight ◽  
Fatty Degeneration ◽  
Fat Cells ◽  
Breeding Lines ◽  
Meat Content ◽  
Group I ◽  
Significant Difference ◽  
Selection For

The research goal is to carry out comprehensive studies to define the biological and chemical characteristics of the young Poltava Meat Breed boars’ bacon for further work with existing genotypes and creating new ones.Materials and methods. The research was carried out on bacon samples taken from Poltava Meat Breed boars of different genotypes during the «control slaughter» at the age of reaching the live weight of 100 kg. Purebred Poltava Meat Breed boars were divided into two groups according to the principle of paired analogs: the group I (control) contained animals of «clean» breeding lines (16 heads), and the group II (experimental) contained animals with 12,5% of the Finnish Landrace blood (14 heads). The thickness of the bacon, its morphological structure and its chemical features were studied. All the results obtained were then processed by statistical methods.Results. It was found that Poltava Meat Breed boars, regardless of the genotype, had bacon thickness values below the Poltava Meat Breed target standard after reaching the live weight of 100 kg, with very low variability of the indicator (1,05–1,69%). However, there was no significant difference between the groups. During the morphological study of the samples, qualitative differences in the bacon of animals from different groups were noted. In the first group, the subcutaneous tissue (bacon) is subject to more pronounced destructive changes due to the intensified process of fatty degeneration. The fat cells of animals with Finnish Landrace blood were slightly smaller, but no significant difference between the area of fat cells in boars of different genotypes was found. The variability of morphological parameters in both groups was average (23,91% and 16,23%). The infusion of Finnish Landrace blood to the Poltava Meat Breed boars led to a change in the chemical composition of bacon, such as: an increase in the amount of moisture by 8,58% (p≤0,01), protein by 3,62% (p≤0,01), a decrease in the amount of fat by 9,25% (p≤0,01), to a decrease in the saponification number by 8,36% (p≤0,01) and the iodine number by 10,48% (p≤0,01).Conclusion. The bacon of Poltava Meat Breed boars is characterized by biological and chemical features due to both species and genotype. The established features of the bacon of Poltava Meat Breed boars indicate a significant decrease in its quality in the case of Finnish Landrace blood infusion. Intensive selection for meat content of Poltava Meat Breed pigs leads to a significant decrease in the thickness of the bacon and excessive selection pressure.

scholarly journals SELECTION EFFICIENCY OF INBRED CATTLE OF UKRAINIAN WHITEHEAD BREED

2020 ◽  
pp. 232-245
Author(s):  
Svitlana Voitenko ◽  
Olena Sydorenko
Keyword(s):  
Milk Yield ◽  
Local Population ◽  
Live Weight ◽  
Moderate Degree ◽  
Absolute Increase ◽  
Reproductive Ability ◽  
Group I ◽  
Significant Difference ◽  
Close Inbreeding ◽  
Selection Of

The stated results of using outbreeding and inbreeding in a selection of cattle of the Ukrainian Whitehead breed, which belongs to the local population and is preserved only in one breeding herd. It was revealed that animals obtained from related breeding are characterized by a sufficiently high level of productivity and normal reproductive qualities. Although outbred and inbred heifers in the process of growth from birth to 18 months of age differed somewhat from each other in live weight, the difference was not statistically significant. In different periods of growth, both outbred and inbred animals had an advantage, indicating the possibility of improving the trait by purebred breeding methods. The absolute increase in live weight of experimental heifers on rearing was: Group I – 295 kg, II – 289 kg, III – 298 kg, IV – 308 kg and V – 293 kg without a statistically significant difference between the groups, which made it possible to conclude that there was no inbred depression when breeding cattle of a given herd through a related selection of parental pairs. It is recognized that the selection of calves to increase their live weight at birth will not have a positive effect on the trait during the growth of animals, as evidenced by the correlation between them. As a result of the study of reproductive ability, the expediency of obtaining and using inbred cattle in a herd, which was inseminated almost a month earlier than outbred, was proved. Between outbred and inbred cows, a significant differentiation of milk yield for the first – third lactation was found, without a significant advantage of animals obtained by one or another method of purebred breeding. According to the first lactation, the highest milk yield was observed in cows of the close inbreeding group (group V) – 4501 kg, which exceeded the outbred ones by 150 kg and the lower inbred ones (groups II-IV) by 191 – 633 kg. Inbred cattle with distant, moderate and close degrees of inbreeding at the second lactation had from 4629 kg to 4719 kg of milk, with the highest rate in cows of a moderate degree of inbreeding, while outbred cows produced only 4582 kg. Cows of a moderate degree of inbreeding had the highest milk yield in the third lactation – 5204 kg and the lowest – 3897 kg of the group of a close degree of inbreeding. Outbred cows for this trait were superior only to individuals of the group of close inbreeding. The results of a comparative analysis of economically useful traits of outbred and inbred cows and heifers of the Ukrainian Whitehead breed indicate the possibility of using a related selection of parental pairs in a herd to increase the efficiency of interbreeding selection, replicate the hereditary traits of the ancestor and preserve the disappearing domestic breed of cattle.

scholarly journals FATTENING AND MEAT QUALITIES OF GEESE OF OBROSHIN SELECTION WITH GRAY AND WHITE PLUMAGE

2021 ◽  
Vol 22 (1) ◽  
pp. 243-250
Author(s):  
L. V. Ferenc ◽  
M. D. Petriv
Keyword(s):  
Total Protein ◽  
Research Work ◽  
Live Weight ◽  
Total Protein Content ◽  
Mass Selection ◽  
Group I ◽  
Breed Group ◽  
Significant Difference ◽  
Males And Females ◽  
Group Ii

The research work provided a solution to the problem of preserving the gene pool of Obroshyn gray (OS) and Obroshyn white (OB) geese, which will improve and enhance the valuable qualities of the original flock of geese, gain the desired economic characteristics and thus ensure the competitiveness of the industry in modern conditions. The research was conducted in the laboratory of small livestock ISGKR NAAS and on the basis of SE DG "Miklashiv". The main method of breeding is the selection and selection of individuals with high productive qualities in order to obtain the same type of bird that would meet the planned performance parameters. Selection work was carried out by individual mass selection, aimed at consolidating the standard for each breed group of traits. Before the beginning of the breeding period, males and females of both groups were individually assessed by the exterior, typical plumage, live weight. It was found that both Obroshyn gray and Obroshyn white geese were well selected for productive characteristics and showed high fattening and meat qualities. All birds are well adapted to the natural conditions of the western region. Body sex measurements (chest circumference, torso length, keel, and metatarsus) were higher in males of the Obroshyn gray breed group of geese. Males at different ages had higher rates than females. Obroshyn gray geese (group I) outperformed their peers from group II in terms of meat qualities, the weight of uncorked and gutted carcass, and yield of edible parts. The pre-slaughter live weight of carcasses of males of group I (OS) was 4722 g and prevailed over peers of group II (OB) by 2.94%, and the live weight of females was 4149 g and was higher by 4.19%. It was found that the difference in the number of erythrocytes in males and females was insignificant and almost does not change with age, and hemoglobin on the contrary - increases with age. Males in all study periods had higher serum total protein compared to females. The lowest rate was in males and females аt 4 weeks of age, however, there was no statistically significant difference between the groups in the number of erythrocytes, hemoglobin, and total protein content.

scholarly journals  Effect of herbal extracts on piglet performance and small intestinal epithelial villi

2012 ◽  
Vol 57 (No. 9) ◽  
pp. 420-429 ◽  
Author(s):  
E. Hanczakowska ◽  
M. Swiatkiewicz
Keyword(s):  
Acid Content ◽  
Fatty Acid Content ◽  
Morphological Structure ◽  
Basal Diet ◽  
Herbal Extract ◽  
Control Group ◽  
Herbal Extracts ◽  
Indicator Method ◽  
Group I ◽  
Significant Difference

The effect of a mixture of herbal extracts on piglet performance was estimated on 178 piglets allocated to 3 groups comprising 6 litters each. Group I (control) was fed with the standard barley-wheat-soybean mixture. Group II received the same mixture supplemented with a blend of formic and propionic acids. Group III received the basal diet supplemented with a mixture of water extracts from sage, lemon balm, nettle and coneflower (20, 30, 30, and 20%, respectively) at 500 mg/kg feed. The experiment lasted for 84 days but on day 56 six piglets from each group were slaughtered and their gastrointestinal tract was removed. Apparent digestibility was estimated using the Cr<sub>2</sub>O<sub>3</sub> indicator method. Acidity of digesta was measured in the stomach, ileum, and caecum, and volatile fatty acid content was evaluated in the ileum and caecum. Amounts of bacteria and morphological structure were evaluated in the ileal digesta and epithelium, respectively. In the experimental groups less dead and culled piglets were observed than in the control group. Piglets in the herb-supplemented group grew faster than control animals and showed significantly higher final average body weights. There was no significant difference in feed utilization. Acetic acid content was higher in both groups receiving supplements. The amount of propionic acid in the caecum of animals from the herb-supplemented group was lower than in animals from groups I and II. There were no significant differences in bacteria population in ileum chyme. The herbal extract improved the structure of the ileal epithelium by significantly increasing villus height. Better digestibility of nutrients could be due to higher villi in this group. &nbsp;

Effects of selection for divergent ultrasonic fat depth in rams on progeny fatness

1988 ◽  
Vol 47 (3) ◽  
pp. 379-386 ◽  
Author(s):  
G. L. Bennett ◽  
H. H. Meyer ◽  
A. H. Kirton
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Carcass Weight ◽  
Low Fat ◽  
Eye Muscle ◽  
Significant Difference ◽  
Ultrasonic Measurements ◽  
Kidney Fat ◽  
Slaughter Age ◽  
Selection For

ABSTRACTFat depths of Southdown and Suffolk rams were ultrasonically measured several times prior to 18 months of age. Ultrasonic measurements were regressed on live weight and deviations from this regression were standardized and summed to select rams with high and low fat depth to produce crossbred progeny for slaughter. An average of 3·24 standard deviations separated high and low sires. Progeny were slaughtered at two ages to determine differences in carcass fatness and its development. A significant difference of 0·5 mm fat depth over the loin eye muscle was found between progeny of low and high sires. Progeny from Suffolk high sires had greater tissue depth over the rib and higher kidney fat weight than those from Suffolk low sires but differences were small or reversed in Southdown progeny. Low progeny had significantly less estimated carcass chemical fat than high progeny. Fat depth C increased less in low progeny between early and late slaughter ages. However, no difference in partition of carcass weight gain to fat weight gain was observed between high and low progeny. Differences in fat weight between high and low progeny, as well as between Southdown and Suffolk progeny, appeared to have occurred prior to the earlier slaughter age.

scholarly journals MEAT PRODUCTIVITY OF KALMYK BREED BREEDS AT DIFFERENT DURATION OF THE PRODUCTION CYCLE AND LEVEL OF CONCENTRATES IN THE DIET

2020 ◽  
Vol 55 (3) ◽  
pp. 90-94
Author(s):  
R.A. Ulimbasheva ◽  
Keyword(s):  
Total Duration ◽  
Live Weight ◽  
First Grade ◽  
Control Group ◽  
Production Cycle ◽  
Meat Content ◽  
Bull Calves ◽  
Significant Difference ◽  
Meat Productivity ◽  
Experimental Group

The article presents the results of bulls control slaughter, morphological and varietal composition of the pulp of carcasses, depending on the duration of the production cycle and the level of concentrates in the diet. In the gobies of the control group, the total duration of the production cycle was 18 months (546 days), with a specific gravity of concentrates in the rations of 40 % in the experimental group – 16 months (482 days) – 50 %. The suckling period of calves in the control group was 210 days, in the experimental group – 182 days, rearing – 186 and 165 days, respectively, intensive final fattening – 150 and 135 days. The differences obtained both in the pre-slaughter live weight and in the weight of the paired carcass were 1,9 and 3,4 kg, respectively, without a significant difference between the groups. The superiority of bulls of the experimental group over the control group was established according to the leading studied indicators of the morphological composition of carcasses, except the mass of bones, cartilage, and tendons. Differences in the mass of the pulp in favor of the calves of the experimental group were 5,1 kg, the coefficient of meat content was 0,21 units, the ratio of the edible part to the inedible part in the carcass was 0,26 units. All other things being equal, from the bulls of the experimental group, a higher mass of pulp of the highest grade was obtained by 4,9 kg or 2,2 %, of the first grade – by 6,4 kg or 1,8 %. The yield of secondgrade pulp was higher in the carcasses of gobies of the control group by an average of 6,2 kg or 4 %. Thus, both groups of bulls showed high slaughter weight and slaughter yield, with insignificant intergroup differences. However, due to the shorter duration of the production cycle of growing and fattening, it turned out to be preferable to use beef production technology from bull calves of the experimental group.

scholarly journals Growth and Testicular Spermatozoa Reserve Potential Of Pre-pubertal Rabbits Fed With Diet Containing 16% Bovine Rumen Digesta-BIood Meal Mixture (50:50) In combination With 18% Cooked Macuna Bean Meal

2021 ◽  
Vol 36 (1) ◽  
pp. 175-187
Author(s):  
V. A. Togun ◽  
G. O. Farinu ◽  
O. O. Ojebiyi ◽  
S. A. Ayorinde ◽  
C. O. Majaro
Keyword(s):  
Weight Gain ◽  
Control Diet ◽  
Live Weight ◽  
Sperm Production ◽  
Pubertal Stage ◽  
Bovine Rumen ◽  
Testicular Spermatozoa ◽  
Group I ◽  
Significant Difference ◽  
The Cost

The growth response of pre-pubertal rabbits and their gonadal sperm reserve potential at pubertal stage when fed diets containing a combination of 16% (50-50) bovine rumen digesta-blood meal (BRDBM) mixture and 18% cooked mucuna bean (CMBM). This was in replacement of 500/0 of the maize and 50% of the groundnut cake of a pre-pubertal control diet. Twenty-four male rabbits of mixed breed aged between 6-8 weeks and body weight range 900-915g were randomly allocated to two diets: the control (diet 1) and the experimental (diet 2). Daily feed intake (72.4±7.5g  vs 64.0±9.1g), total weight gain (518±1g Vs 406±18g) and Terminal live weight (1427±48g vs 1317±410 were significantly (P <0.05) higher in the control than experimental group. Feed to gain ratio in group I was marginally lower (7.5±2.6g Vs 8.5±1.2g) than for diet 2. However, dressing percentage (68.6±7.00/6 Vs 75.4±9.0%) was significantly higher in the rabbits on diet 2 than diet l. The cost per kg of diet Vs as well as the cost per kg live weight gain (N352.6±O.l VsN344.5H).l) was significantly lower for diet 2 than diet l. The paired testes weight (1.8±0.6g Vs 1.9±0.40, daily sperm production (3.6x 108 Vs 3,8x 108) and testicular spermatozoa reserve were marginally higher in rabbit on diet 2 (experimental) than diet 1 (control). The paired epididymal weight for rabbits on diet 2 was significantly (P <0.05) higher (0.6±0.3g Vs 1.2±0.30 than those on diet l, indicating more efficient sperm storage. The hematological measured were not affected (P>O. 05) by the dietary treatments. The non-significant difference (P>O. 05) in the efficiency of sperm production and sperm reserve between the two diets confirmed that the inclusion of these materials, in the diet of rabbits supports the ventures Of increasing animal protein sources through cheaper rabbits production process in Nigeria

scholarly journals MEAT PRODUCTIVITY OF CROSSBRED LAMBS OF VARIOUS GENOTYPES

2019 ◽  
Vol 57 ◽  
pp. 95-101
Author(s):  
O. A. Mashner ◽  
P. I. Lyutskanov
Keyword(s):  
Weight Gain ◽  
First Generation ◽  
Live Weight ◽  
Experimental Period ◽  
Second Stage ◽  
Meat Content ◽  
Significant Difference ◽  
The Republic ◽  
Meat Productivity ◽  
Average Sample

The article presents the results of studies of meat productivity of crossbred lambs ♀Tsigay х ♂Bentheimer of the first generation and ♀Karakul х ♂Avassi (82.5%) of the blood volume of the Awassi breed. At the first stage were studied, the fattening qualities (growth and development of crossbred lambs and sheep and the second stage meat productivity of lambs carcass output and meat content. The studies were conducted on the first-generation of crossbred lambs and sheep, obtained from crossing ♀Tsigay х ♂Bentheimer, on the farm of Experimental-Technological Station “Maksimovka” and at crossbreeding ♀Karakul х ♂Avassi, with blood share of Avassi breed 82.5% obtained on the farm “Tsurcanu Andrei”. The cultivation of local lambs, of both genotypes, was carried out by the traditional method for the conditions of the republic – sharing with the uterus from birth to beating. It is set the superiority of crossbred lambs ♀Karakul x ♂Avassi in comparison with peers ♀Tsigay х ♂Bentheimer by live weight at birth by 0.72 kg, (P ≤ 0.01), when beating by 6.88 kg, (P ≤ 0,01 ), and at statement on experience by 3.92 kg or 14.9%. Also, for the 62 days of the experimental period (fattening), the gross weight gain at hybrids ♀Karakul х ♂Avassi) was higher by 3.0 kg (17.4%). The same tendency is and at sheep for live weight at birth, at beating and at the beginning of the experiment by 0.8 kg (18.1%), 3.1 kg (14.6%), and the live weight at the end of the experiment and gross weight gain is higher at sheep of ♀Tsigay х ♂Bentheimer by 0.98 kg (3.9%) and 1.58 kg (4.2%) and 2.56 kg (23.0%). In accordance with the gender, the gross weight gain of the lambs is higher in accordance to the sheep in both variants. Thus, at the ♀Karakul х ♂Avassi crossbreed, the gross weight at labms is higher by 9.14 kg and in the ♀Tsigay х ♂Bentheimer – by 13.68 kg. Calculated physique indices indicate that lambs ♀Tsigay х ♂Bentheimer compared to their peers ♀Karakul х ♂Avassi stretchiness index is 5.55% more, transverse by 2.86%, massiveness by 11.0% and consistency by 3.62%, and the indices of the thoracic and bony, are lower by 0.88 and 1.77%, respectively. There are also a number of differences at sheep, but less in quantitative terms. At crossbred sheep of the ♀Tsigay х ♂Bentheimer genotype, the stretch index is by 3.14% more, transverse by 0.28%, massiveness by 3.68%, and breast indexes, crush index and bony index are less respectively by 5.89% (P ≤ 0.05), 0.32% and 0.21%. According to meat qualities of crossbred sheep, at genotype ♀Tsigay х ♂Bentheimer compared to ♀Karakul х ♂Avassi crossbred, the indices are better. The mass of double carcass is by 3.4 kg more (17.1%), the mass of chilled carcass is 3.23 kg (17.3%), slaughter weight by 3.29 kg (17.3%), respectively, and the amount of meat in the half carcass is 0.796 kg more, and as a result, the coefficient of meatiness is higher by 0.46 units. On the chemical composition of meat at lambs ♀Karakul х ♂Avassi and ♀Tsigay х ♂Bentheimer there is no significant difference in indicators. At the same time, it is noted a slightly higher content of fat and protein in meat (average sample) of cross-bred lambs of the ♀Karakul х ♂Avassi genotype in relation to the same indicators of ♀Tsigay х ♂Bentheimer hybrids. The carcasses received from the lambs of both groups were measured and the corresponding indices were calculated. The carcass indices characterizing the shape and reflecting their quality showed that the carcass index of the crossbred lambs of the ♀Tsigay х ♂Bentheimer genotype was significantly higher by 5.05% (P ≤ 0,001) in relation to the indicator obtained from the cross ♀Karakul х ♂Avassi. A similar trend was noted in the ham index (higher by 0.27), in carcass compactness by 7.84%, in ham development by 6.64%, in chest depth by 2.41% (P ≤ 0.05) and proportionality of ham by 0.4%. An exception is the carcass uniformity index, which at crossbred lambs ♀Tsigay х ♂Bentheimer is less by 0.356%.

The cellularity of adipose tissue from pigs of different weights

1976 ◽  
Vol 86 (3) ◽  
pp. 633-638 ◽  
Author(s):  
M. B. Enser ◽  
J. D. Wood ◽  
D. J. Restall ◽  
H. J. H. MacFie
Keyword(s):  
Cell Size ◽  
Live Weight ◽  
Fat Cells ◽  
Gradual Change ◽  
Size Distributions ◽  
Fat Cell ◽  
Large White ◽  
Significant Difference ◽  
Cell Size Distributions ◽  
Number Of Cells

SummaryFat cell diameters were measured at 2-mm intervals throughout the depth of cores of subcutaneous shoulder and mid-back fat from ten Large White pigs. Five of the pigs were examined at 39 kg live weight and five at 70 kg live weight.In the shoulder fat of both groups there was a gradual change in fat cell size from the skin to the musculature. Cells were relatively small beneath the skin and adjacent to the underlying muscle and increased in size towards the junction of the inner and outer fat layers. The major difference between the two groups of pigs was that the cells closest to the skin and in the bulk of the inner layer were larger in the heavier animals whereas the cells at the junction of the two layers and closest to the muscle were similar in size. Such a uniform picture was not observed in the mid-back region where cells from the inner layer were larger than those from the outer layer.Cell size was Normally distributed at each site throughout the tissue. When the cell measurements for all the sites in each layer were combined there was no consistency in the type of distributions obtained although there was a tendency for them to be bimodal.In both layers of the shoulder fat there was a significant increase in the number of cells present in the 70 kg pigs compared with the 39 kg pigs and the new cells contributed considerably to the growth of the tissue between these weights. The observed cell size distributions and the cell size gradients within the tissue suggest that in the inner shoulder layer the new cells arise adjacent to the muscle. In the mid-back there was no significant difference in the number of fat cells present in the two groups of pigs and the growth of the mid-back fat was due to an increase in the size of fat cells already present.

СОВЕРШЕНСТВОВАНИЕ СТАД СКОТА СИММЕНТАЛЬСКОЙ ПОРОДЫ ПО МОЛОЧНОЙ И МЯСНОЙ ПРОДУКТИВНОСТИ

2020 ◽  
Author(s):  
N.V. SIVKIN ◽  
N.V. STREKOZOV ◽  
V.I. CHINAROV
Keyword(s):  
Milk Yield ◽  
Live Weight ◽  
Breeding Value ◽  
Early Age ◽  
Group I ◽  
Breeding Herd ◽  
Simmental Cattle ◽  
Meat Productivity ◽  
Selection Of ◽  
Meat Type

В симментальской породе предусматривается разведение скота, сбалансировано сочетающего молочную и мясную продуктивность. Однако в практике совершенствования племенных стад в подборах быков доминируют улучшатели удоя, что во многом предопределяет результаты селекции и продуктивный тип животных. Объектом нашего исследования стало стадо чистопородного симментальского скота в условиях стойловой системы беспривязного и привязного содержания коров. Для изучения эффективности использования быков-производителей разного племенного достоинства сформировали 2 опытные группы: I состояла из бычков, полученных от отцов с племенной ценностью (ПЦ) по удою 100 кг и более, а во II с ПЦ от 0 до 100 кг молока. Симментальские бычки, отобранные для контрольного убоя, достигали весовых кондиций 500 кг и более в 17,5 мес при среднесуточном приросте 911 г. При использовании на маточном поголовье быков-производителей с улучшающим эффектом по удою 100 кг и более, их сыновья (I группа), на фоне более высоких суточных приростов (на 30 г) и раннем возрасте достижения живой массы 500 кг (на 18 дней) имели массу и выход туши на 21,4 кг и 2,7 ниже, чем у бычков II группы. При формировании молочно-мясного типа быки-производители с умеренной племенной ценностью по удою обеспечивали получение потомства, сочетающего молочную и мясную продуктивность в экономически значимых пропорциях.The Simmental breed provides for the breeding of cattle that combines milk and meat productivity in a balanced proportion. However, in the practice of improving breeding herds, the selection of bulls is dominated by milk yield improvers, which largely determines the results of selection and the productive type of animals. The object of our research was a breeding herd of purebred Simmental cattle in variety feeding and housing practices. To study the effectiveness of using bulls-producers of different breeding values, 2 experimental groups were formed: I consisted of bulls received from fathers with a breeding value (BV) of milk yield 100 kg or more, and II with a BV from 0 to 100 kg of milk. Simmental bulls selected for control slaughter reached weight standards of 500 kg or more in 17.5 months with an average daily increase of 911 g. When used on breeding of bulls with an improving effect on the yield of 100 kg or more, their sons (group I), against the background of higher daily gains (30 g) and an early age of reaching a live weight of 500 kg (18 days), had a mass and carcass yield of 21.4 kg and 2.7 lower than that of group II bulls. When forming a dairy-meat type, producing bulls with a moderate breeding value for milk yield provided for the production of offspring that combined dairy and meat productivity in economically significant proportions.

Effect of Supplementation of Multi Enzymes on Production Performance and Egg Quality Traits in White Leghorn Layers

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
C. Pandian ◽  
A. Sundaresan ◽  
A. V. Omprakash
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Live Weight ◽  
Economic Benefits ◽  
Production Performance ◽  
Feed Consumption ◽  
Quality Traits ◽  
White Leghorn ◽  
Significant Difference ◽  
Enzyme Supplementation

The present study was conducted to assess the effect of supplementation of Multi-enzymes with lysophospholipids on production performance of pure line White Leghorn layers. Body weights before and after the experiment did not differ significantly across the experimental diets. Irrespective of the dietary treatments, the birds gained 3.83 per cent of live weight relative to its initial body weight. Mean per cent Hen housed egg production was significantly (Pis less than 0.05) higher in diet supplemented with 0.10 MEC-L than other groups. Mean egg weight and average daily feed consumption during 25 to 35 weeks of age indicated no significant effect of enzyme supplementation. Average daily feed consumption per bird in control, 0.05 % and 0.1% multi-enzyme supplemented groups was 108.13, 105.66 and 107.67 g respectively and birds offered control diet recorded numerically more feed intake than enzyme supplemented groups. Comparatively low feed per egg was observed in 0.10 per cent group followed by 0.05 per cent group which offers economic benefits than control diets. However, the egg quality traits between different dietary enzyme supplementation groups showed no significant difference.

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