Peculiarities of growth and development of pigs of different genotypes

2020 ◽  
pp. 73-80
Author(s):  
Gabriela Birta ◽  
Yurii Burgu
Keyword(s):  
Growth And Development ◽  
Live Weight ◽  
The Body ◽  
Individual Development ◽  
Meat Production ◽  
Age Changes ◽  
Linear Measurements ◽  
Absolute Increase ◽  
Significant Difference ◽  
Chest Girth

In accelerating the rate of filling the domestic market with meat of domestic production, a pivotal role belongs to pig breeding. To make this industry profitable, it is necessary to take care every day to improve the selection, conditions of housing and feeding of animals. Improving the productive qualities of pigs in order to increase meat production is one of the most important tasks of Ukrainian pig breeding. Pigs are characterized by a high growth rate, due to the accumulation in the body of active, mainly proteinaceous substances, the process of increasing its size and live weight is underway. In the process of growth and development, all economically useful traits are formed. The nature of the growth and development of pigs depends on the genotype, conditions of housing, feeding, etc. Researches of scientists have determined that the linear growth of animals in the process of their development increases at a slower rate than the growth of the living weight, and individual body measurements vary with different intensities. Age changes in the structure of animals are due, to a large extent, to the different intensity of growth of their skeleton at different stages of individual development. In the article it is presented the results of studies of the dynamics of changes in the weight of experimental young animals with optimal and intensive fattening. Experiments have shown that at different levels of fattening up to 100 kg, the animals of breeds of with the Poltava Meaty and the Red White belted had the largest absolute increase, this index continued to increase, and when the animals reached 125 kg, the animals of Myrgorod breed had the smallest absolute increase. Also, changes were made in the linear measurements of experimental animals. The results showed that with the age of the animals the absolute indexes of all measurements increased. The animals of the breed Landrace were superior to their counterparts from other groups along the length of the trunk and the depth of the chest. The chest girth was the largest in the youngster pigs of Myrgorod breed, the animals of Landrace were the tallest at the withers. At an increased level of fattening, the greatest length of the trunk was observed in animals of the Poltava Meaty breed. They also had the highest height at the withers and a small chest girth. Pigs of the Large White breed had intermediate indexes. In terms of the coverage of the brush, there was no significant difference, and the depth of the chest was dominated by pigs of Myrgorod breed. Key words: growth, development, gain, ontogeny, measurements, indexes, age changes.

scholarly journals CHANGES IN LINEAR MEASUREMENTS AND LIVE WEIGHT WITH AGE IN PUREBRED AND CROSSBRED PIGLETS

PIG-BREEDING ◽  
2021 ◽  
pp. 16-19
Author(s):  
LEVSHIN A.D. ◽  
◽  
KULMAKOVA N.I. ◽  
Keyword(s):  
Growth And Development ◽  
Live Weight ◽  
The Body ◽  
Individual Development ◽  
Universal Method ◽  
Linear Measurements ◽  
Relative Growth ◽  
Experimental Animals ◽  
Weight Growth ◽  
The Individual

Since changes in linear measurements and the live weight of animals are manifested in a very multifaceted way, it is difficult to imagine their study and accounting using a single universal method. This problem can be solved by using a variety of methods and techniques for studying the individual development of the body. This article is devoted to the study of the features of growth and development in purebred breeding and interbreed hybridization based on the study of the intensity of live weight growth, the dynamics of average daily increases in relative growth rate and linear measurements of experimental animals.

scholarly journals GROWTH AND DEVELOPMENT REGULARITIES AND EXTERNAL CONSTITUTIONAL FEATURES OF REPAIR YOUNG CATTLE BROUGHT THROUGH THE CROSSBREEDING OF UKRAINIAN BLACK-AND-WHITE DAIRY AND SWISS BREEDS

2020 ◽  
Vol 60 ◽  
pp. 12-22
Author(s):  
I. V. Verbuch ◽  
O. V. Medvid
Keyword(s):  
Dairy Cows ◽  
Growth And Development ◽  
Live Weight ◽  
Reproductive Capacity ◽  
External Evaluation ◽  
Absolute Increase ◽  
Black And White ◽  
Significant Difference ◽  
The Difference ◽  
Dairy Breed

Goal. To study the influence of interbreeding of Ukrainian black-spotted dairy cows with bulls of Swiss breeds on growth and development and exterior-constitutional features of repair young stock. Methods. Selection-genetic analysis, comparative, statistical. Results. Research and production studies were conducted on the basis of the breeding plant of SE "Pasichna" ICSGP NAAS "Starosinyavsky district of Khmelnytsky region on the population of purebred animals of the Podolsk factory type of Ukrainian black-and-white dairy breed (UCHRMP) and local animals obtained from crossbreeding bulls of the Swiss breed. According to the results of experimental studies in identical conditions of feeding and keeping young animals of the experimental groups, it was found that the highest live weight, both at birth and in subsequent age periods is characterized by local young animals. However, a significant difference between the groups of 12.9 kg (td = 2.15; P > 0.95) in favor of crossbreeds is observed only at the age of 18 months. When studying the absolute increase in live weight of experimental calves in the three-month dynamics of postnatal ontogenesis, which is an indicator of the intensity of animal growth, the advantage of local animals over purebred peers was also established. The largest significant difference in their favor is observed at the age of 7–9 months (3.1 kg, td = 2.29, P > 0.95). In all other periods of cultivation, the difference is not significant. Comparative characteristics of the degree of stress in the growth of animals, which was determined by the relative increase in live weight in the three-month dynamics showed that the most intensively growing animals of both groups from birth to 3 months of age (168.0–169.3%), then – with increasing age, the growth rate gradually decreases. A significant difference between the experimental groups, according to the above indicators, has not been established. The average daily gains in live weight of animals, for all periods considered, were higher in local animals. On average, from birth to 18 months of age, they were: local heifers 660 g, purebred – 637 g. External evaluation of the studied groups of heifers showed that purebred young at 18 months of age had the highest height at the withers by 1.2 cm, height in the buttocks – 1.4 and oblique length of the torso and buttocks, respectively, 0.8 and 0.7 cm compared to local young, but inferior to the latter in latitudinal measurements: chest width 1.2 cm, width in macula – 0.9 and width in the buttocks – 1.1 cm. In general, animals of both groups are well developed and have a harmonious physique. Conclusions. The results of the analysis of the dynamics of live weight of experimental groups of heifers, aged from birth to 18 months of age, show that local young animals obtained from crossing cows of Ukrainian black-spotted dairy breed with bulls of Swiss breed have slightly better performance than peers of purebred animals . However, the difference between the groups is in most cases unlikely. External evaluation of the studied groups of heifers showed that purebred young for all considered periods, from birth to 18 months of age, have higher indicators in height at the withers, height in the buttocks and oblique length of the torso and buttocks, but inferior to local in latitudinal measurements : chest width, width in macula and width in the buttocks. Thus, it can be argued that when using crossbreeding of Ukrainian black-and-white dairy cows with bulls of Swiss breed, the obtained young animals have slightly higher rates of growth and development, which will further positively affect the size and quality of milk productivity, reproductive capacity and duration use of cows herd.

scholarly journals Application and efficiency of body volume formula for predicting live weight in two strains of broiler chickens in Zaria, Nigeria

2021 ◽  
Vol 43 (2) ◽  
pp. 13-18
Author(s):  
M. Kabir ◽  
A. Shehu-Kubra
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Live Weight ◽  
The Body ◽  
Correlated Response ◽  
Body Volume ◽  
Weekly Basis ◽  
Significant Difference ◽  
Chest Girth ◽  
White Rose

Records from 120 day-old Arbor Acre (n = 60) and White Rose (n = 60) broiler strains of mixed sexes were used. The experiment was carried out at the Poultry Unit, Teaching and Research Farm of the Department of Animal Science, Faculty of Agriculture, Ahmadu Bello University Zaria, Kaduna state. Traits considered from day old to 8 weeks included body weight (BW), body length (BL) as well as chest girt (CG). The chickens were assigned to two treatments with three replications each having twenty chickens per replicate and were fed the same type of feed. The weights were taken on weekly basis. The feed consumed was also measured on daily basis. The body parameter such as body length and chest girth was also taken on weekly basis. The chick's body volume (BV) was estimated by cylinder volume using a formula derived from the work of Paputungan. Results obtained showed that age significantly (P<0.05) affected BW at all ages where the White Rose strain consistently weigh heavier than Arbor Acre. Similarly the BV of Arbor Acre is less than that of White Rose strain only at week 2. No significant difference (P>0.05) was obtained for the other parameters investigated across age. Coefficient of correlation among parameters obtained in this study were low and insignificant (P>0.05). However, all the values recorded were positive indicating that selection for any trait will lead to correlated response in the others. The multiple regression models for predicting live weight from chest girth, body length and body volume in the two strains revealed that coefficient of determination (R2 ) for BV was higher (0.96 to 0.98) compared with those of chest girth (0.56 to 0.73) and body length (0.81 to 0.88). It was concluded therefore that body volume was more efficient and better predictor of live body weight than BL and/or CG.

scholarly journals Application and efficiency of body volume formula for predicting live weight in two strains of broiler chickens in Zaria, Nigeria

2021 ◽  
Vol 43 (1) ◽  
pp. 13-18
Author(s):  
M. Kabir ◽  
A. Shehu-Kubra
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Live Weight ◽  
The Body ◽  
Correlated Response ◽  
Body Volume ◽  
Weekly Basis ◽  
Significant Difference ◽  
Chest Girth ◽  
White Rose

Records from 120 day-old Arbor Acre (n = 60) and White Rose (11 = 60) broiler strains of mixed sexes were used. The experiment was carried out at the Poultry Unit, Teaching and Research Farm of the Department of Animal Science, Faculty of Agriculture, Ahmadu Bello University Zaria, Kaduna state. Traits considered from day old to 8 weeks included body weight (BW), body length (BL) as well as chest girt (CG). The chickens were assigned to two treatments with three replications each having twenty chickens per replicate and were fed the same type of feed. The weights were taken on weekly basis. The seed consumed was also measured on daily basis. The body parameter such as body length and chest girth was also taken on weekly basis. The chick's body volume (BV) was estimated by cylinder volume using a formula derived from the work of Paputugan. Results obtained showed that age significantly (P<0.05) affected BW at all ages where the White Rose strain consistently weigh heavier than Arbor Acre. Similarly the BV of Arbor Acre is less than that of White Rose strain only at week 2. No significant difference (P>0.05) was obtained for the other parameters investigated across age. Coefficient of correlation among parameters obtained in this study were low and insignificant (P>0.05). However, all the values recorded were positive indicating that selection for any trait will lead to correlated response in the others. The multiple regression models for predicting live weight from chest girth, body length and body volume in the two strains revealed that coefficient of determination (R2) for BV was higher (0.96 to 0.98) compared with those of chest girth (0.56 to 0.73) and body length (0.87 to 0.88). It was concluded therefore that body volume was more efficient and better predictor of live body weight than BL and/or CG.

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.

GROWTH AND DEVELOPMENT OF SIMMENTAL BULLS DEPENDING ON PROGENY

2021 ◽  
Vol 1 (1) ◽  
pp. 3-10
Keyword(s):  
Growth And Development ◽  
Average Daily Gain ◽  
Live Weight ◽  
The Body ◽  
Cattle Breeding ◽  
Dairy Cattle Breeding ◽  
Breeding Selection ◽  
Productivity Indicators ◽  
Body Parameters ◽  
Daily Gain

In dairy cattle breeding, selection and breeding work is widely used in order to transfer the pedigree qualities of parents to the offspring and obtain highly productive young animals. In this regard, in the conditions of «Enbek» LLP in the Akmola region, the growth and development of young Simmental breed depending on the origin was studied. Live weight of Litera line young animals at birth was 33.4 kg, at the age of 6 months-174.9, 12 months-251.8, 18 months-387.1 kg, respectively, Wildfang bull 32.0 kg, 165.5 kg, 251.3 kg, 378.6 kg. The average daily gain between the ages of birth and 6 months was increased. With age, the body parameters, height at the withers, increased from 104.3 cm and 103.5 cm to 125.4 cm and 123.9 cm, respectively, from 6 months to 18 months of young animals. According to the physique indices, we can say that the young Simmental breed is balanced. Only some deviations of the leggy index are observed from the optimal indicators. The index of legginess decreases with age by 7.7%, with indicators of 6 months – by 57%, at the age of 18 months-by 49.3%. The extension index for the period from 6 to 18 months increased by 10.5%, respectively, for 6 months-by 103.3%, for 18 months-by 113.8%. With age and an increase in live weight, the body of young animals lengthens, its width increases, the animal becomes deeper and relatively long-legged. Depending on the origin, we suggest using the Litera bull line, taking into account the growth and development of young animals, and the productivity indicators of bulls.

The influence of enzyme therapy with adaptogens when candidiasis on blood parameters, increase the livability and meat productivity of geese

2021 ◽  
pp. 41-52
Author(s):  
R. T. Mannapova ◽  
R. R. Shaikhulov ◽  
A. G. Mannapov
Keyword(s):  
Trace Elements ◽  
Therapeutic Effect ◽  
Live Weight ◽  
The Body ◽  
Biologically Active ◽  
Economic Damage ◽  
Meat Production ◽  
Enzyme Therapy ◽  
Prevention Measures ◽  
Effective Prevention

It has been established that in propolis, which is a biologically active product of beekeeping contains several dozen compounds, trace elements and vitamins. It contains most of the compounds of flavonoid and terpenoid nature, phytoncides, unsaturated aromatic acids, trace elements: copper, cobalt, potassium, sodium, manganese, zinc, calcium, barium, titanium, nickel, chromium, vanadium, tin, vitamins (A, B, C, E, PP), glucose, fructose, cinnamon alcohol. This composition provides a favorable complex effect of propolis on the body: bactericidal and virusocidal (kills bacteria and viruses), bacteriostatic (slows their growth), regenerative (restoring tissues, heals wounds) and fungicidal (kills fungi). The main therapeutic effect in this biologically active beekeeping product is provided by ferulic, caffeic and benzoic acids, galantine, chrysin, isalpine, pinocebrin. They are combined with trace elements and vitamins, as well as probiotics and prebiotics, which provide the greatest therapeutic effect. This circumstance is important for fungal diseases of poultry and especially for candidiasis. Geese candidiasis has been causing great economic damage to poultry farming all over the world in recent decades. The search for effective prevention measures and therapies remains an unsolved problem to date. The data on the development of reactions basophils, pseudoeosinophils, eosinophils, lymphocytes, monocytes on the background of candidiasis and their enzyme adaptogens: probiotic and propolis for traditional microbiotheria is not effective and does not contribute to the restoration of cytological reactions and meat production of poultry have been presented in the article. At the same time as shown by our studies in farms affected by candidiasis geese timely application of enzyme therapy on a background of immune propolis and propitiatory not only contributes to the full restoration of all biological indicators, but more intense live weight gain of poultry and improve the livability of their livestock. This underlines the importance of taking measures to prevent candidiasis in goose farms, together with good conditions for feeding and housing poultry.

Meat production from pigs which have farrowed. 2. Carcass characteristics

1975 ◽  
Vol 20 (1) ◽  
pp. 123-131 ◽  
Author(s):  
P. H. Brooks ◽  
D. J. A. Cole ◽  
W. J. N. Jennings
Keyword(s):  
Young Adult ◽  
Meat Quality ◽  
Adult Female ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Control Group ◽  
Meat Production ◽  
Large White ◽  
Treatment Groups ◽  
Significant Difference

SUMMARYThe carcass characteristics of young adult female pigs (gilts) slaughtered after weaning their first litters have been investigated using three groups of 19 Landrace × (Landrace×Large White) gilts. In two treatment groups gilts were mated at their pubertal oestrus and suckled their piglets for 5 to 11 and 35 to 42 days respectively. These gilts were slaughtered on average 10 days after weaning. A third control group consisted of unmated gilts slaughtered at 118 kg live weight.There was no significant difference in the killing-out percentage for the three groups. The carcasses of the gilts which farrowed contained significantly less fat (P<0·001) than those of the unmated controls. The carcasses of the farrowed gilts had significantly lighter middle sections (P<0·001) and significantly heavier shoulders (P<0·001) than the controls.Despite the variations in tissue yield and distribution, the yield of prime joints for the gilts which had farrowed was only 0·62 percentage units less than that of the controls.No commercially significant variations between groups in meat quality were observed.

Report on a further experiment to compare the fattening values, for beef cattle, of silage made from grass cut at different stages of growth, together with the results of some supplementary experiments

1953 ◽  
Vol 43 (2) ◽  
pp. 166-177 ◽  
Author(s):  
T. L. Dodsworth ◽  
W. H. McK. Campbell
Keyword(s):  
Dry Matter ◽  
Live Weight ◽  
The Body ◽  
Dry Matter Intake ◽  
Feeding Trial ◽  
Stages Of Growth ◽  
Grass Silage ◽  
Significant Difference ◽  
Dressing Percentage ◽  
Behaviour Study

1. A feeding trial is described including four groups of cattle fed on grades I, II and III silages and on swedes, straw and oats respectively.2. The live-weight gains made are recorded, together with the rate of dry-matter intake.3. The efficiency of the dry matter of the diets was calculated.4. All three grades of silage produced a significantly greater rate of fattening than swedes plus straw and oats. There was no significant difference between the fattening values of the three grades of silage.5. The dressing percentages found for 100 silagefed and 71 swede-fed cattle are given. The swedefed cattle yielded a greater average dressing percentage.6. It is suggested that the higher dressing percentage found for root-fed cattle as compared with silage-fed cattle can be attributed to the more rapid elimination of dietary water from the body in rootfed cattle.7. An animal behaviour study is described, the time spent by cattle on the four diets, eating, cudding and lying down, being determined.8. Cattle fed on grass silage spent longer on feeding plus cudding than swede-fed cattle.9. An experiment is described designed to determine the effect of the dry-matter percentage of the diet on the dry-matter intake of ruminants.10. The results indicate that when ruminants are subsisting on a diet consisting solely of succulents, the dry-matter intake is depressed when the dry-matter percentage of the diet falls.

scholarly journals Influence of the probiotic preparation “Plantarum” in the diets of pregnant animals on the growth and development of young animals

2021 ◽  
Vol 37 ◽  
pp. 00143
Author(s):  
Irina Funk ◽  
Nikolay Vladimirov ◽  
Alexander Yashkin ◽  
Lyudmila Pautova ◽  
Vitaly Gorshkov
Keyword(s):  
Body Weight ◽  
Growth And Development ◽  
The Body ◽  
Control Group ◽  
Standard Diet ◽  
Absolute Increase ◽  
Probiotic Preparation ◽  
Positive Effect ◽  
Experimental Group ◽  
Different Doses

The work aims to study the effect of different doses of the experimental probiotic preparation “Plantarum” when fed to pregnant animals on their reproductive qualities, as well as on the growth and development of young animals. To obtain young animals, four groups of goats were formed in the type of the Saanen breed, 20 heads each. In the first (control) group, the animals received a standard diet, in the diet of the animals of the second, third and fourth groups in the second half of pregnancy, the probiotic preparation “Plantarum” was additionally introduced, containing Lactobacillus Plantarum, Propiobacterium freudenreihii, in dosages from 0.4 to 0.8 ml/kg of body weight per day. From the offspring of the goats of the experimental groups, four groups of 12 goats were formed. The highest percentage of preservation (94%) and the highest business output of kids per 100 queens (150%) were observed in the fourth experimental group (0.8 ml). The goats of the second, third and fourth groups exceeded the body weight of their contemporaries from the control group by 3%, 6.3%, and 8.8%. The highest indices of the absolute increase in body weight by age periods were noted in the fourth group of goats. There were no significant differences in body build indices during the experiment between the goats of the control and experimental groups. Thus, the maximum positive effect was observed with the introduction of a probiotic preparation into the diet of pregnant goats at a dose of 0.8 ml/kg of body weight per day.

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