The 490 and 380 performance records of Karan Fries and Karan Swiss cows developed through crossbreeding followed by inter-se mating were evaluated for production, reproduction performance and disposal rate. Duration of study (1982-92) was grouped into five periods (1982-83; 1984-85; 1986-87; 1988-89; 1990-92) and each year was divided into four seasons (Winter: Dec.Jan.; Spring: Feb.-March; Sum...

In Italy, the interest for jennet milk production has recently developed. An 18-month-long experiment was carried out on a jennet farm near Milo (CT), where 24 jennets, which derived from the Ragusana breed, were tested for milk yield and composition over an entire lactation period. The jennets were fed with hay and concentrate in a large paddock. From the 28th post-foaling day to the end of th...

Oxaliplatin (Ox) is widely used for the treatment of various tumors. Since Ox prevents DNA replication and transcription, it may affect organs with rapid cell divisions such as testes. Although its use during pregnancy has been reported, no information regarding effects on testes offspring not available yet. Thirty-two mice were randomly divided into four groups. The control group (1) was admin...

It is well established that subclinical mastitis (SCM), characterized by somatic cell count (SCC) >200,000 cells/mL, has a negative effect on the productivity, reproductive performance, and survivability of cows from conventional dairy herds. However, in organic herds, where use antimicrobial drugs restricted for treatment control intramammary infections (IMI) cows, little known about SCM perfo...

Increased genetic selection and capacity for milk production in dairy cows has been associated with a decline in fertility. Following parturition, nutritional requirements increase rapidly with milk production and the resulting negative energy balance (NEBAL) extends for 8–10 weeks of early lactation. NEBAL delays the timing of first ovulation through attenuation of LH pulse frequency and low l...

The aim of this study was to identify risk factors for culling, sales and deaths in intensively managed dairy goat herds in New Zealand. A data set provided by the New Zealand Dairy Goat Cooperative (n = 13,197 does) was analyzed using a Cox proportional hazard model. The outcome of interest was length of productive life (LPL), defined as the number of days from the date of second kidding to th...

In surrogate pregnancies genetic parents have little opportunity for early bonding with their infants either prenatally (in utero) or during the immediate postnatal period. Procedures commonly used to induce lactation include both pharmacologic and nonpharmacologic methods often in combination. Studies reporting induced lactation are sparse due to the rarity of augmented lactation. Here we repo...

Abstract The main aim of this study was to determine the bioaccumulation 210 Po in hair various cat breeds and an attempt interpret whether following factors, such as: breed, length hair, gender, age, place living or residence, weight, type food consumed, taking medications, origin into account structural division Poland voivodeships physiological processes as pregnancy lactation have a signifi...