scholarly journals COMPARATIVE EVALUATION OF GROWTH AND DEVELOPMENT OF TURKEY OF DIFFERENT CROSSES

2018 ◽  
pp. 98-103
Author(s):  
Y. M. Rebezov ◽  
O. V. Gorelik ◽  
T. V. Kurmakaeva
Keyword(s):  
Growth Rate ◽  
Growth And Development ◽  
Comparative Evaluation ◽  
Growth Dynamics ◽  
Live Weight ◽  
Genetic Potential ◽  
The Cross ◽  
Rates Of Growth

The results of studies aimed at comparing turkey of the live weight of the middle and heavy cross Hybrid breeds with a white broad-chested rock were carried out. The study of the live mass and its growth dynamics over the periods of cultivation was carried out by weighing. The growth rate was estimated by absolute, daily and relative increments of live weight. According to the results of the research, it can be concluded that hybrid «Hybrid» and its crosses have a higher genetic potential of productivity, have high rates of growth and its intensity, which allows before slaughtering at 120 and 150 days, depending on the cross, to obtain turkeys with a high live weight of 10.83-23.20 kg, respectively.

scholarly journals The growth, development and meat qualities characteristics of different genotypes lambs

2021 ◽  
Vol 109 (1) ◽  
pp. 69-76
Author(s):  
V. Iovenko ◽  
◽  
I. Hladii ◽  
◽  
◽  
...  
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Gene Pool ◽  
Growth And Development ◽  
Live Weight ◽  
Experimental Animals ◽  
Genetic Potential ◽  
Growth Development ◽  
Ram Lambs ◽  
Meat Productivity

The growth, development and meat qualities characteristics of different genotypes lambs he growth and development features of three different genotypes ram-lambs, from their birth to six months age, were studied, in particular: purebred youngling of the Ascanian Fine-Fleeced breed (AFF), a cross of this gene pool with the Texel (AFFxT) and Merinolandschaf (AFFxM) breeds. Control over the growth and development these experimental animals was carried out by weighing in different age periods. The meat quality was assessed based on the slaughter results. It was found that the best development parameters were characteristic for the Texel crossbred with the Ascanian Fine-Fleeced breed; therefore, this crossing option has the meat productivity highest genetic potential. Keywords: sheep, genotype, live weight, linear parameters, growth rate.

USING THE KAZAKH WHITE-HEADED BREED TO INCREASE BEEF IN THE FLAT PROVINCE OF DAGESTAN

2020 ◽  
Author(s):  
М.М. САДЫКОВ ◽  
М.П. АЛИХАНОВ ◽  
А.Г. СИМОНОВ ◽  
Г.А. СИМОНОВ
Keyword(s):  
Growth And Development ◽  
Live Weight ◽  
Control Group ◽  
Beef Production ◽  
Daily Growth ◽  
Carcass Yield ◽  
Breeding Stock ◽  
Fattening Period ◽  
The Cross ◽  
Experimental Group

Изучены рост и развитие бычков — помесей красной степной с казахской белоголовой породой в равнинной провинции Дагестана. Установлено, что помесный молодняк, по сравнению с чистопородным скотом красной степной породы, имеет более высокую живую массу при рождении на 1,8 кг, или 7,3%. При отъеме в 8-месячном возрасте помеси имели живую массу 210 кг против 187,6 кг у красного степного молодняка, что на 22,4 кг, или 11,9% выше. В 12-, 15- и 18-месячном возрасте живая масса помесных бычков равнялась 291,8 кг, 359,7 и 436,6 кг, соответственно, или на 28 кг, 36 и 45,8 кг больше по сравнению с красным степным скотом. Среднесуточные приросты помесных бычков за период выращивания и откорма составили 760 г, что выше на 12,1% по сравнению с чистопородным красным степным молодняком. После заключительного откорма и убоя помесные бычки дали тяжеловесные туши с хорошим поливом. По массе парной туши они превосходили чистопородных аналогов на 31,3 кг, или 15,6% с преимуществом выхода туши на 2,4%. Убойный выход у бычков опытной группы составил 58,7%, контрольной — 55,8%. От помесных бычков были получены тяжеловесные шкуры массой 27,1 кг, от чистопородных — 21,6 кг, преимущество по этому показателю имели помесные животные 5,5 кг, или 25,4%. Для увеличения производства говядины в равнинной провинции Дагестана рекомендуем скрещивание коров красной степной породы с быками казахской белоголовой породы. The growth and development of bulls of red steppe crossbreeds with the Kazakh white-headed breed in the flat province of Dagestan were studied. It was found that young crossbreed animals in comparison with purebred red steppe cattle have a higher live weight at birth by 1,8 kg or 7,3%. When weaning at 8 months of age, cross-bred bulls had a live weight of 210 kg against 187,6 kg in red steppe young, which is 22,4 kg, or 11,9% higher. At 12, 15 and 18 months of age, the live weight of crossbred bulls was 291,8 kg, 359,7 and 436,6 kg, respectively, or 28 kg, 36 and 45,8 kg more than the red steppe cattle. The average daily growth of cross-bred bulls during the growing and fattening period was 760 g compared to 678 g, that is, they were 12,1% higher compared to purebred red steppe young. After the final fattening and slaughter, the cross-bred bulls gave heavy carcasses with good watering. By weight of the paired carcass, they were superior to purebred counterparts by 31,3 kg or 15,6% with an advantage of 2,4% carcass yield. The slaughter yield of bulls in the experimental group was 58,7%, 55,8% in the control group, respectively, with an advantage in favor of crossbreeds of 2,9%. Heavy skins weighing 27,1 kg were obtained from crossbreed bulls, 21,6 kg from purebred ones, and crossbreed animals of 5,5 kg or 25,4% had an advantage in this indicator. Studies have shown that in order to increase beef production in the lowland province of Dagestan, it is necessary to use crossbreeding of the breeding stock of the red steppe breed with bulls of the Kazakh white-headed breed.

AGE DYNAMICS OF THE LIVE WEIGHT OF YOUNG YAKS OF THE ALTAI POPULATION

2021 ◽  
pp. 38-40
Author(s):  
А.И. БАХТУШКИНА ◽  
В.Р. САИТОВ ◽  
М.М. САЛЬНИКОВА
Keyword(s):  
Growth Rate ◽  
Average Daily Gain ◽  
Growth Dynamics ◽  
Live Weight ◽  
Winter Period ◽  
Relative Growth ◽  
Bull Calves ◽  
Vigorous Growth ◽  
The Absolute ◽  
Daily Gain

Проведено изучение интенсивности роста молодняка яков алтайской популяции, характеризующегося энергичным ростом. Динамика роста молодняка яков изучена путем определения их живой массы в разные возрастные периоды: при рождении, в возрасте 7, 12, 18 мес. По результатам взвешиваний определен абсолютный прирост, абсолютный среднесуточный прирост живой массы, относительная скорость роста. В период от рождения до 7-месячного возраста, который совпал с летним периодом пастбищного сезона, живая масса бычков увеличилась на 131,4 кг, а телок — на 120,2 кг. Интенсивность роста составила соответственно 625,7 и 572,4 г, что свидетельствует о достаточно хорошей молочности маток. В зимний период (возраст молодняка — от 7 до 12 мес) интенсивность роста резко снизилась: живая масса бычков и телочек составила всего 161,3 и 143,7 кг, со среднесуточными приростами — 94 и 58 г соответственно. С началом вегетации пастбищных растений приросты молодняка по сравнению с зимним периодом резко увеличились. В возрасте от 12 до 18 мес они были равны: 476 г — у бычков и 439 г — у телочек. Общий прирост живой массы бычков за этот период составил 86 кг, у телочек — 79 кг. Полученные данные свидетельствуют о достаточно хорошем развитии молодняка яков алтайской популяции. The growth rate of young yaks of the Altai population, characterized by vigorous growth, was investigated. The growth dynamics of young yaks was studied by determining their live weight at different age periods – at birth and at the age of 7, 12, 18 months. According to the weighing results, the absolute gain, the absolute average daily gain in live weight, and the relative growth rate were determined. In the period from birth to 7 months of age, which coincided with the summer months of the pasture season, the live weight of bull calves increased by 131.4, and heifers — by 120.2 kg, i.e., the growth rate was 625.7 and 572.4 g, respectively, which characterizes a fairly good milk yield of cows. In the winter period (age from 7 to 12 months), the growth rate decreased sharply: the live weight of calves and calves was only 161.3 kg and 143.7 kg, with average daily gains of 94 and 58g, respectively. Subsequently, with the beginning of the growing season of pasture plants, the weight gain of young animals in comparison with the winter period increased sharply. At the age of 12 to 18 months they were equal: 476 g-for steers and 439 g-for heifers. The total increase in live weight of calves during this period was 86 kg, of heifers — 79 kg. The data obtained indicate a fairly good development of young yaks of the Altai population.

The evaluation of economically optimal rations for bacon pigs formulated by curve fitting and linear programming techniques

1966 ◽  
Vol 8 (2) ◽  
pp. 213-220 ◽  
Author(s):  
J. B. Dent ◽  
P. R. English
Keyword(s):  
Growth Rate ◽  
Live Weight ◽  
High Growth ◽  
High Growth Rate ◽  
Food Conversion ◽  
Growing Period ◽  
Programming Techniques ◽  
Rates Of Growth ◽  
Food Conversion Efficiency ◽  
Better Than

Least cost rations for specific rates of growth in the growing and finishing periods were given to pigs slaughtered at 200 lb. live-weight. During the growing period pigs grew very close to the planned rates in spite of the fact that some food was rejected. Pigs given rations for a low growth rate in the growing period grew slightly faster than planned in the finishing period. In the finishing period pigs given rations for the high growth rate grew on average very near to this rate. The pigs given the ration for the low growth rate grew slightly faster than planned. Food conversion efficiency was for all pigs very near to, or slightly better than, that planned. The rations had no adverse effect on carcass quality.

scholarly journals Constitutional and production features of the cross of the Kalmyk breed with Aberdeen-Angus breed of cattle

2019 ◽  
pp. 51-53
Author(s):  
Zagir Gasanovich Gadzhiyev ◽  
Oleg Igrisovich Biryukov
Keyword(s):  
Body Length ◽  
Growth And Development ◽  
Live Weight ◽  
The Cross

The results of the crossing of the Kalmyk cows with the Aberdeen Angus breed are presented. The indicators of growth and development in crossbred bulls in comparison with purebred from birth to 8 months of age were studied. It was proved that crossbred gobies in the Aberdeen-Angus breed at 8 months of age significantly exceeded the control Kalmyk breed in live weight by 41.40 kg or 19.1%. They also possessed the best exterior in terms of the development of meat forms and the ratio of articles of physique. In terms of the depth of the chest, superiority was 6.05 cm or 12.5%  (P≥0.999), the width of the chest behind the shoulder blades was 5.73 cm or 19.4% (P≥0.999), and 6.3 cm in the oblique body length or 5.4% (P≥0.95). The ratio of the articles of constitution was also in favor of the crossbred bulls. In general, they were characterized by a wider and rounded chest and a somewhat longer body length. According to the massiveness index, the advantage was 5.25% (Р≥0.95).

FEATURES OF THE GROWTH DYNAMICS, EXTERIOR, AND FEED PAYMENT OF ABERDEEN-ANGUS CALVES OF DIFFERENT BODY TYPES

2021 ◽  
pp. 49-59
Author(s):  
A.F. SHEVKHUZHEV ◽  
◽  
V.A. POGODAEV
Keyword(s):  
Growth Rate ◽  
Growth Dynamics ◽  
Live Weight ◽  
Young Calf ◽  
Large Type ◽  
Different Types ◽  
Intensive Rearing ◽  
Feed Costs ◽  
Meat Productivity

The purpose of this work was to establish the features of growth, appearance, and feed costs as related to the increase in live weight in Aberdeen-Angus calves obtained from bulls of different body types. To conduct the experiment in the company LLC “Hammer” of the Karachay-Cherkess Republic, 14 calf bulls were selected in each group from the offspring of 4 large calf bulls and 3 small calf bulls of the Aberdeen-Angus breed. The fathers of the first group of young calf bulls had a higher level of live weight as compared to the fathers of the second group of calf bulls (by 80 kg). Their differed from their counterparts as being high-legged, less broad-bodied and having different massive characteristics. The mothers of the calf bulls of the first group also had a higher live weight (by 49 kg) as compared to the mothers of the calf bulls of the second group. The differences in constitution between them were nsignificant. The results of research on intensive rearing of different types from weaning to 18 months of age showed that calves originating from large-type bulls surpassed their counterparts obtained from the bulls of a small type of meat productivity. This distinction is primarily expressed in a greater growth rate and better feed gain in live weight. At the age of 18, calа bulls from large-type parents reached a mass of 442 kg, and those obtained from the small-type ones – 413 kg. These differences are statistically significant (P > 0.99) for the period from weaning to one and a half years of age. Calа bulls originating from large-type bulls spent 8.1 ECU per 1 kg of gain, and those originating from small-type bulls – 8.4 ECU.

scholarly journals The effect of growth and development intensity in replacement heifers on economically important traits of Holstein cattle in the Czech Republic

2008 ◽  
Vol 52 (No. 9) ◽  
pp. 277-283 ◽  
Author(s):  
J. Bouška ◽  
M. Štípková ◽  
M. Krejčová ◽  
L. Bartoň
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Growth And Development ◽  
Live Weight ◽  
The Other ◽  
Total Production ◽  
Live Weight Gain ◽  
Productive Life ◽  
Reproduction Traits ◽  
The Relationship

The objective of the study was to determine the effect of growth and development intensity in Holstein replacement heifers on economically important animal traits. The intensity of growth was assessed by the average live weight gain until 14 months of age. In addition, live weight and height at the sacrum at 14 months of age were analysed as indicators of growth and development when evaluating the length of productive life. The milk yield of first-calvers increased as the average daily live weight gain in the rearing period increased. An opposite tendency was recorded for cows in their second and third lactation and the total production also decreased with a higher growth rate of heifers. The analysis of the relationship between growth rate and the following reproduction traits revealed that the increased average daily live weight gain to 14 months was subsequently associated with reduced reproduction efficiency in cows. The differences between the groups with the lowest and the highest average live weight gains in the number of days open in the first and second calving interval were 26.78 and 17.47 days, respectively. This tendency was also confirmed in the other reproduction traits analysed. Productive life was significantly longer in animals with the lowest intensity of growth and development compared to the other groups (2.17 to 5.49 months, <i>P</i> < 0.01).

Comparative performance of calves from Bunaji (White Fulani) dams and Gharolais, three-quarter Friesian and Bunaji sires

1978 ◽  
Vol 91 (2) ◽  
pp. 305-308 ◽  
Author(s):  
A. O. Johnson ◽  
T. D. Bell
Keyword(s):  
Growth Pattern ◽  
Comparative Evaluation ◽  
Live Weight ◽  
Comparative Performance ◽  
Weight Percentage ◽  
Present Trend ◽  
Sire Group ◽  
White Fulani ◽  
The Cross ◽  
Retail Cuts

SUMMARYComparative evaluation was made on the live weight and growth pattern of calves from Bunaji (White Fulani) cows sired by Charolais, three-quarters Friesian crossbreds (three quarters Friesian and one quarter Bunaji) and Bunaji bulls in 2 years. Twelve steers per breed were evaluated on carcass merit after 250 days postweaning feeding.Results showed that the Charolais half-cross and the Friesian three-eighth calves were heavier by up to 7, 23, 57 and 51 kg respectively at birth, weaning, 112 and 250 days after weaning than the Bunaji calves. The carcass data indicated superior slaughter weight and loin eye area in favour of the cross - breds, but no differences were found for dressed weight, dressing percentage, carcass grade and hide weight percentage among the breed groups. Carcass retail cuts showed heavier sirloin steaks and round steaks in favour of the cross-breds also.The results were indicative of the superior growth of the cross-breds and underlined their carcass potential which may be useful in upgrading the indigenous stock. In view of the small numbers of progeny per sire group, especially among the cross-breds, further work needs to be done to confirm the present trend.

The growth and development of nine European sheep breeds. 1. British breeds: Scottish Blackface, Welsh Mountain and Shetland

1997 ◽  
Vol 65 (3) ◽  
pp. 409-426 ◽  
Author(s):  
N. C. Friggens ◽  
M. Shanks ◽  
I. Kyriazakis ◽  
J. D. Oldham ◽  
T. H. McClelland
Keyword(s):  
Growth Rate ◽  
Growth And Development ◽  
Live Weight ◽  
Growth Function ◽  
Carcass Composition ◽  
Full Description ◽  
Meat Production ◽  
Mature Weight ◽  
Pelleted Diet ◽  
Entire Male

AbstractThe objective of this study was to assess the growth and development of carcass composition of entire male and female lambs of three British hill breeds (Scottish Blackface, Welsh Mountain, and Shetland), from weaning to approaching maturity, when kept under conditions designed to be nutritionally non-limiting. Lambs were weaned at 8 weeks of age and given a high-quality pelleted diet ad libitum until slaughter at one offive different degrees of maturity. The Gompertz growth function was used to characterize, for each genotype, the growth curve and to provide estimates of mature weight. As expected, there were significant effects of breed and sex on both food intake and growth rate. Growth rate was depressed, relative to the Gompertz fit, during the months of October to January, and intake was similarly depressed. The estimates of mature weight for the females of each breed were: Scottish Blackface, 69; Welsh Mountain, 61; Shetland, 46 kg. The mature weights of the males were found to be not significantly different from 1-3 times the mature weight offemales. Relationships between carcass composition and live weight were derived by allometric regression. This study provides the first full description of the growth and meat production potential of the three breeds.

scholarly journals Special compound feeds and an immunostimulator to increase the live weight gain of suckling piglets

2021 ◽  
Vol 935 (1) ◽  
pp. 012017
Author(s):  
A Lavrentev ◽  
G Larionov ◽  
L Mikhaylova ◽  
L Zhestyanova ◽  
V Sherne
Keyword(s):  
Growth Rate ◽  
Growth And Development ◽  
Live Weight ◽  
Mixed Feed ◽  
Creep Feeding ◽  
Suckling Piglets ◽  
Weaning Piglets ◽  
Mixed Feeds ◽  
Supplemental Nutrients ◽  
Experimental Group

Abstract Sow milk is usually enough to meet the need for nutrients of three weeks age piglets. However from the beginning of life they need supplemental nutrients in the form of creep feeding. The objective of this study was to survey the usefulness of special mixed feeds (super starter, pre-starter, starter feeds) given as creep feeding and feeding to suckling pigs, as well as the use of immunostimulant for their health, better growth and development. The study showed that suckling pig fed with special super starter, pre-starter and starter mixed feed depending on age, as well as young animals additionally treated with intramuscular injected immunostimulant better by growth rate. The highest indicators for the live weight of piglets at the age of 60 days (weaning) and for the milk content of sows were in the experimental group, which was intramuscularly injected with an immunostimulator The highest live weight of (weaning) piglets aged 60 days was in treated groups.

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