scholarly journals Study of SNP 775C>T polymorphism within the bovine ITGB2 gene in Polish Black-and-White cattle and in local breeds of cattle

2008 ◽  
Vol 52 (No. 3) ◽  
pp. 57-61
Author(s):  
U. Czarnik ◽  
M. Galiński ◽  
T. Zabolewicz ◽  
Ch.S. Pareek

The present study addresses the characteristics of the frequency and segregation of alleles determining the SNP 775C>T polymorphism within the bovine <i>ITGB2</i> gene in the Black-and-White cattle population as well as in two endemic breeds of Polish Red and Polish White-Back cattle population qualified to the international programme of genetic resource diversity preservation in farm animals. The SNP 775C>T polymorphism revealed three amplified restriction fragments of 31 bp, 77 bp and 108 bp, forming three genotypes <i>CC</i> (31 bp, 77 bp), <i>CT</i> (31 bp, 77 bp, 108 bp) and <i>TT</i> (108 bp). A group of randomly selected Black-and-White cows was characterized by a negligible percentage of homozygous genotypes <i>TT</i> (5.1%) and by a prevailing percentage of heterozygous <i>CT</i> (60.1%) and homozygous <i>CC</i> (34.8%). In contrast, the between breeds analysis revealed that cows involved in the programme of genetic diversity preservation had a high prevalence of homozygotes <i>CC</i> (Polish Red &minus; 55.9%, Polish White-Back &minus; 60.0%), and a low percentage of homozygotes <i>TT</i> (Polish Red &minus; 8.8%, Polish White-Back &minus; 5.7%) in comparison with the Black-and-White cattle population. The degree of homozygosity in groups of Polish White-Back cows (65.7%) and Polish Red cows (64.7%) was remarkably higher than that of the Black-and-White cows (39.9%).

Author(s):  
L. Ovchinnikova ◽  
E. Babich

In the Republic of Kazakhstan over the past decade positive changes have been observed in increasing the number of farm animals, increasing their productivity, and increasing the gross production of milk, meat and other products. At the same time the development of dairy cattle breeding is mainly due to the breeding of Black-and-White, Red Steppe, Simmental breeds and their intra-breed types as well as imported from abroad Holstein breed. The purpose of the research was to analyze ways to improve the intra-breed type Karatomar of Black-and-White breed in Northern Kazakhstan. Research work has been carried out on breeding animals such as Karatomar type cattle of Black-and-White breed in LLP “Experimental farm Zarechnoe” in the Kostanay district in the Kostanay region. The dynamics of growth and development indicators, reproductive traits of heifers of a new intra-breed type Karatomar of Black-and-White cattle have been studied. A comprehensive assessment of their economically useful traits in the first lactation, determined by the resistance of animals to climatic and forage conditions, the efficiency of breeding of animals of different genotypes has been conducted. It has been found that the replacement heifers – daughters of American breeding sires inherited precocity and showed higher growth energy after 6 months of age and continued to grow rapidly until 18 months. The advantage in metabolism was in the daughters of Holstein sires of the American selection Orbit 4078, and the increased immune status of the organism in the daughters of the sire of the domestic selection Yamal 975 as the most adapted to the conditions of Northern Kazakhstan. The best ability to increasing the milk yield, stable lactation activity, high milk productivity, gross content of dry matter and nonfat milk solids have been characterized by the daughters of sires of the American selection Orbit 4078 and Lowrider 4129. Analysis of economic indicators of milk production has been shown that from cows – daughters of sires Orbit 4078 and Lowrider 4129 for 305 days of lactation received 15,8 and 15,2 % more milk of base fat, the expenditures of EFU per 1 kg of production was lower by 10,2 and 5,9 %. A higher level of profitability has been observed in the group of daughters of the sires Orbit 4078 – 35,5 % and Lowrider 4129 – 33,1 %, which was 8,5 and 10,8 % higher than in the group of daughters of the sire Yamal 975.


1993 ◽  
Vol 76 (4) ◽  
pp. 1157-1162 ◽  
Author(s):  
Didier Boichard ◽  
Bernard Bonaiti ◽  
Anne Barbat

Author(s):  
Z. Fedorova

In order to fi ll the existing protein defi ciency in the rations of farm animals in particular dairy cows it is necessary to input feed lupins as widely as possible in crop rotations. Lupin is a very versatile forage crop it can be used in feed as herbage, in the form of haylage, silage, in compound feed as a protein additive, as well as a green manure crop to increase soil fertility. Questions of protein nutrition should be to be quickly resolved, both in the production of protein and in its standardized rational use. Unbalanced protein rations increase feed consumption per unit of production, thereby increasing its prime cost. In the world soya is generally recognized as a protein feed, but in the Kaliningrad region as in most of regions in our country, it does not maturate being a heat-loving crop. Under these environments the inclusion of extruded lupine grain in the composition of energy-protein concentrates for the production of compound feed has become an alternative to replacing expensive soya. The researches have been carried out it the cattle farm of LLC “Temp” in the Guryevsky area in the Kaliningrad region (March-May 2019) on feeding lactating cows energy-protein concentrate from extruded grain of narrow-leaved lupine, fl ax, triticale, subjected to heat treatment on a press extruder. For this purpose two groups of lactating cows of Black-and-White breed (control and experimental) have been formed using the method of pairs of analogs per 11 heads in each. Cows of the control group have received the main ration of the farm, and cows of the experimental group in addition to the main ration have received compound feed with extruded energy-protein concentrate based on lupine. As a result of research, the positive infl uence of energy-protein concentrate based on lupine in compound feed on the dairy productivity of cows has been established. Recipes of concentrate and compound feed with concentrate for lactating cows, the volume of inclusion of components in the concentrate and in the compound feed have been calculated. During the experiment, the milk yield in the experimental group of cows has increased by 62,4 kg or 8,0 %, than in the control group. From the cows of the experimental group the conditional profi t has been received in the amount of 1684,8 rubles per head.


Author(s):  
Anak Agung Oka ◽  
I Gusti Agung Arta Putra ◽  
I Wayan Suarna ◽  
Lindawati Doloksaribu ◽  
I Ketut Puja

2021 ◽  
Vol 848 (1) ◽  
pp. 012082
Author(s):  
O E Likhodeevskaya ◽  
O A Lihodeevskaya ◽  
O V Gorelik ◽  
T N Makarova ◽  
I A Timinskaya

2021 ◽  
Vol 36 ◽  
pp. 06023
Author(s):  
O.I. Sebezhko ◽  
R.V. Mayer ◽  
E.I. Tarasenko ◽  
V.G. Marenkov ◽  
V.V. Garth

We studied protein metabolism in Holsteinized black-and-white cattle. The researches were conducted in the Kuzbass at OJC «Vaganovo». Blood sample was taken from each cow, according to generally accepted of methods and analyzed in the laboratory of biochemistry from Novosibirsk State Agrarian University by using standard kits of biochemical studies on a biochemical semiautomatic analyzer Photometer 5010 V5 +. The indicators of protein metabolism were established in the blood serum of Holsteinized black-and-white cattle in average values; creatinine was characterized by the lowest phenotypic variability. The greatest positive relationship was found between albumin/globulin coefficients and albumin (r = 0.765). The reference intervals were calculated for cows of the 3rd lactation of the Holsteinized black-and-white breed with a high level of milk productivity (9-10 thousand kg): total protein 62.02-87.58 g / l; albumin 21.05-36.09 g / l; urea 2.2-4 mmol / l; creatinine 50-71 μmol / l; albumin-globulin coefficients 0.35-1.16. The data obtained can be used for assess the interior of animals.


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