The research on the new type of feeding pattern of Holstein calves by means of unequal paired feeding trial was studied.

In the experiment,11 Holstein bull calves(birth weight 43.

This study was conducted to evaluate the effects of different ratios of dietary CP to digestible energy(CP∶DE) on growth performance and feed efficiency of 3 to 5 months Chinese Holstein calves.

In order to determine the effect of diets on their growth performance, 48 fall-born Holstein male calves (the distance of the date of their birth less than 10 days) were separated into 4 groups(Ⅰ,Ⅱ,Ⅲ,Ⅳ) and fed with exclusively milk, milk apposition with concentrated feed, milk replacer and exclusively concentrated feed respectively after weaned at their 1 months of age.

In order to determine the effect of diet on growth performance, 48 fall-born Holstein male calves were divided into 4 groups (Ⅰ, Ⅱ, Ⅲ, Ⅳ) and fed with exclusively milk, milk apposition with concentrated feed, milk replacer and exclusively concentrated feed, respectively, beside alfalfa hay after age of 1 month.

Correlation Analysis 305 Days Milk Yield and Udder Traits in Holstein Cow;

Effect of MAGANPAC on Production Performance of Holstein Cow;

Study on Polymorphism of Three Functional Gene in Tibetan Yak and Holstein;

PCR-RFLP was applied to analyze the polymorphisms of P0U1F1 gene in 218 Qinchuan cattle (QQ) and Chinese Holstein cattle (HC).

The genotypes effects of four polymorphic loci on milk production traits of the Holstein cattles were analyzed using insulin-like growth factor binding protein 3 (IGFBP-3) gene as a candidate gene of milk production traits in Chinese Holstein cattle firstly.

The genetic polymorphisms of Xi’an population of Chinese Holstein cattle were detected for κ-cn, β-lg, β-lg 5′flanking region, CSN1S2 F and IGFBP-3 genes by PCR-RFLP.