ISSN 2285-5750, ISSN CD-ROM 2285-5769, ISSN-L 2285-5750, ISSN Online: 2393 – 2260
 

Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Vera GRANACI, Valentin FOCSHA, Vasily KURULYUC, Valentina CIUBATCO

The reproductive performances (SP - service period, CI - calving interval, CCR - Reproductive capacity coefficient) of Jersey (Js), Holstein (HL) cow populations of French, Dutch and local selection were studied, in the period of adaptation to the new operating conditions. It was established that the most significant deviations from the optimal physiological value of SP and CI are found in the Js breed (SRL "Agro-Gogu") (+104.9 and +113.4 days) and in the local selection HL population (SRL "Gomets Efrem") (+78.2 and 88.6 days). In the dynamics of lactation, the duration of SP and CI, regardless of the animal husbandry, but also of the breed, is far above the optimally allowed values. The most favorable results are attested to heifers first calving of the French HL breed. The CCR reached the maximum value in cows HL of local selection, from the second lactation, followed by the Js population. The analyzed data reveal that the adaptive response of the animals to the new conditions is very slow, with breed differences and intrabreed variability.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Anatolie DANILOV, Serghei COSHMAN, Igor PETCU

The work presents the results of a study on the chemical composition of pumpkin seed cake with shell and its potential use in the feeding of fattening piglets. It was established that including pumpkin seed cake in the diets of meat hybrids at proportions of 4%/t and 7%/t of combined fodder did not have a negative impact on health, productive performance, carcass quality, and economic indicators. Tests showed that substituting soybean meal with pumpkin seed cake at a rate of 4%/t in the first fattening period and 7%/t of combined fodder in the second period provides an average daily growth increase of 789g, with a slaughter yield (hot carcass weight) of 80.53%, average backfat thickness at the 6/7 thoracic vertebra of 29.33 mm, 23.00 mm at the spine, 18.67 mm at the rump, eye muscle area of 42.69 cm², ham weight of 11.763 kg, and fat content in the Longissimus dorsi muscle of 4.53%, provided an economic benefit of 10.62 euros for each raised and fattened head.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Maryam CHAUDHARY, Umer FAROOQ, Musadiq IDRIS, Mushtaq Hussain LASHARI, Haroon RASHID, Maheen ANJUM, Asad ALI, Abrar AFZAL, Nasrullah KHAN

The present study was conducted with objective to evaluate the validity of three hemoglobin (Hb) estimation methods, including the cyanmethemoglobin method (HbC), Sahli's method (HbS), and veterinary hematology analyzer (HbA) in Cholistani cattle (n=100). Blood samples were collected aseptically from apparently healthy cattle. The results regarding the overall data and the data for age, and sex-wise groups revealed that HbA was significantly (p ≤ 0.05) different from HbC, whereas HbS was non-significantly (p ≤ 0.05) different from the HbC. The Bland and Altman chart between HbS and HbC, and between HbA and HbC showed significantly higher level of agreement between HbS and HbC with no proportional bias on the distribution of data around the mean difference line (Mean= 0.39, 95% CI= 0.21 to 0.57). Cronbach’s alpha and intraclass correlation coefficient between HbS and HbC, and between HbA and HbC for single and average values, on similar grounds, were also higher between HbS and HbC being 0.819 and 0.900 as compared to the values of 0.793, and 0.884 between HbA and HbC. Sahli's method (a three-time average) for Hb estimation in cattle blood is comparable to the gold standard technique of the cyanmethemoglobin method, endorsing its use as a point-of-care testing device in remote areas.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Nereida MALO (DALANAJ), Megi CAUSHAJ, Rozana TROJA, Elena MUÇA

In food science, water sorption isotherms are often used to understand the stability of food preserved in different conditions. Water activity is defined as the ratio of the vapor pressure of water in a material (p) to the vapor pressure of pure water (po) at the same temperature. In food, water activity (aw) explains how water affects the rate of microbial growth and many other chemical reactions. The paper aimed to study aw as an indicator of structuring the hysteresis cycle, its role in the changes that occur in several dried fruits in the Albanian market and to reach the hysteresis cycle through the determination of aw values in adequate conditions. Referring to physico-chemical indicators as protein, fat, and acidity, they were found to be within the limits allowed by law. So, there was no visible impact on the change of these indicators during the storage period. From the results obtained for walnuts as a specific case, it was observed that due to the dependence of moisture content on aw, the adsorption/desorption isotherms do not overlap, which refers precisely to the hysteresis cycle. It was possible to obtain a second-order desorption isotherm, with a very good approximation.

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© 2019 SCIENTIFIC PAPERS. SERIES D. ANIMAL SCIENCE. To be cited: SCIENTIFIC PAPERS. SERIES D. ANIMAL SCIENCE.

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