Bovine leukemia virus (BLV), the causative agent of enzootic bovine leukosis, is an exogenous, B lymphotropic retrovirus belonging to the Retroviridae family that induces persistent lymphocytosis in cattle and sheep. PCR has proven to be particularly suitable for investigating herds of cattle with a very low incidence of BLV infection and for clarifying doubtful serological results obtain...

csn1s1is one of the major genes encoding milk proteins of mammals. in this study we determined allele frequencies of csn1s1-5` flanking region as well as exon 17 variants and their effects on milk traits in three indigenous cattle breeds mazandarani, golpaygani (bos indicus) and sarabi (bos taurus) and holstein cattle in iran. csn1s1*b variant was nearly fixed in holstein but ranged from 0.40 t...

India is the foremost milk producing nation of the world, and homes the largest domesticated bovine population. But the average productivity of indigenous/non-descript animals is far below than that of Taurine cattle. Crossbreeding of low producing indigenous and nondescript cattle with high producing exotic breeds like Holstein Friesian and Jersey is followed as the breeding policy of the coun...

CSN1S1is one of the major genes encoding milk proteins of mammals. In this study we determined allele frequencies of CSN1S1-5` flanking region as well as exon 17 variants and their effects on milk traits in three indigenous cattle breeds Mazandarani, Golpaygani (Bos indicus) and Sarabi (Bos taurus) and Holstein cattle in Iran. CSN1S1*B variant was nearly fixed in Holstein but ranged from 0.40 t...

The objective of the study is to have a critical review on how indigenous breeds of cattle, their productivity, economic and cultural values affect Nigerians. Present cattle population in Nigeria has been estimated as 15.3 million and breeds of cattle indigenous to Nigeria include White Fulani, Red Bororo, Sokoto Gudali, Adamawa Gudali, Wadara, Azawak, Muturu, Keteku, Ndama and Kuri. A recent s...

The study was conducted to determine the specific chemical constituents of cattle urine and indigenous plant extracts. Chemical analysis revealed that the specific chemical composition i.e., chloride, sulphate, nitrite and phosphorus pentaoxide contents of fresh and fermented cattle urine were 1556, 364, 2.0, 26.8 and 4514, 252, 22.4, 7.49 mg l-1, respectively. The proximate chemical compositio...

Huge livestock population of India is under threat by a large number of endemic infectious (bacterial, viral, and parasitic) diseases. These diseases are associated with high rates of morbidity and mortality, particularly in exotic and crossbred cattle. Beside morbidity and mortality, economic losses by these diseases occur through reduced fertility, production losses, etc. Some of the major in...

In an effort to improve productivity and profits many farmers have replaced traditional livestock breeds with higher yielding alternatives. While such changes may bring about short-term economic gains, the loss of traditional livestock breeds could result in the loss of an important genetic resource as a variety of important genetic traits adapted to local conditions gradually become less commo...