Global Journal of Animal Scientific Research
Volume:8 Issue: 4, Autumn 2020

Diarrhea in newborn calves under 30 days of age is one of the most significant cause of economic losses and pervasive concern in veterinary industry all around the world and infectious agents are the most commonly detected causes of calf diarrhea. In order to present a useful and convenient method for treatment of calf diarrhea, we evaluate the therapeutic effect of fermented colostrum on calf diarrhea syndrome. Thirty newborn Holstein calves, with diarrhea, were divided randomly in two equal groups (test and control). Both group of calves were received routine treatment protocol in the farm, furthermore calves in test group were fed once daily to 3 days, 300 mL naturally fermented colostrum. Vital signs (heart rate, respiratory rate and rectal temperature) and clinical scores (demeanour, mobility, dehydration, suckle reflex, feed intake (appetite) and stool consistency) were checked in all calves for 4 days. The results of the present study showed that the use of fermented colostrum along with treatment protocols can accelerate the return of fecal consistency and feed intake of calves with diarrhea to normal and relieving dehydration.

The effects of feeding different levels of ox bile salt (OBS) supplements on broiler performance, digestibility of crud fat and some blood chemical (cholesterol, triglyceride, high density lipoprotein and low density lipoprotein) were investigated. Three hundred and seventy-five, day-old broilers chickens were assessed using a completely randomized design. Five diets, containing different levels of OBS (0.00, 0.15%, 0.30%, 0.45%, and 0.60%) were randomly assigned to 5 replicates each of 15 birds for a 42-d period (7d for adaptation and 35 d for data collection). Feed intake, growth weight, crud fat digestibility and blood metabolites were determined. Supplementation of OBS levels in the diet of the broiler chickens improved (P< 0.05) body gain weight, feed conversion rate and crude fat digestibility. OBS had no effects (P > 0.05) on the feed intake. Feeding OBS-containing diets caused (P<0.05) an increase of content of serum total cholesterol (TC), high density lipoprotein (HDL) and low density lipoprotein (LDL) and serum total triglycerides (TG). The animal performance reached its greatest value with simultaneous feeding of 0.45% and 060%OBS. It has been concluded that the dietary supplementation of OBS had positive effects on body gain weight, feed conversion rate, crude fat digestibility, and serum TC, TG, HDL and LDL. Synchronized feeding of the great levels of OBS and fat digestibility (as an energy source) increased utilization efficiency of these byproducts in the performance of broiler chickens.

This study investigated the additive effect of ethanolic extract of Black Pepper (Piper nigrum) on gonadosomatic index of the testes and testicular histology as well as testicular morphometry of Rabbit bucks. A total of twenty (20) composite Rabbit bucks aged 18 – 20 weeks were used for this study in a completely Randomized design. Experimental animals were divided into 5 groups represented as A, B, C, D, and E consisting of 4 bucks each and replicated four (4) times with a buck per replicate. The first group A (Control) was given pelleted feed that did not contain extract of black pepper. The second, third, fourth and fifth groups (B, C, D, E) had in their diet (pelleted feed) inclusion levels of black pepper extract at 100mg/kg feed, 150mg/kg feed, 200mg/kg feed (optimum) and 250mg/kg feed (above optimum). The treatment (test diet) was administered for 90 days. Ethanolic extract of Black pepper inclusion at optimum and above optimum showed statistical evidence of higher values for optimum and lower values for above optimum. Testicular length of Rabbits fed at optimum and above optimum showed (6.900±0.20) and (6.067±0.20), testes weight showed (4.47±0.40) and (1.63±0.40), testes volume showed (2.53±0.23) and (0.90±0.23), epididymis length showed (23.23±0.97) and (18.73±0.97), and gonadosomatic index results showed (0.1257±0.01) and (0.0483±0.01). Black pepper ethanol extract enhanced testicular morphometric parameters of Rabbit bucks fed at optimum inclusion level of 200mg/kg feed. It was also observed to be toxic to testis development at higher doses (above optimum) based on the Gonadosomatic index results, and testicular histological slides showed that inclusion levels of ethanolic extract of Black pepper above optimum levels causes destruction of seminiferous tubules and negatively affected spermatogenesis.

An experiment had been carried out to examine the suitability of using different levels of sweet potato tubers as a source of energy on performance and carcass characteristics of broiler chicken. A total of 150 one – day old, unsexed broiler chicks (Ross 308 breed) with initial weight of approximately 38g were distributed in a completely randomized design with five dietary treatments. The diets formulated contained five levels of sweet potato and sorghum as the main source of energy at rates 0%, 15%, 25% and 40 % of the total rations + Standard ration (Kafi feed). Each group was subdivided into 3 replicates with ten birds each. Data were analyzed by using SPSS 22.0 program package. The performance (feed intake, weight gain and feed conversion ratio) indicated a significant difference in starter, finisher and entire phase, except for weight gain in starter period and feed intake in finisher and entire periods. However, there were no significant differences observed in chemical composition of meat, carcass and carcass cuts except for drumstick. Serum chemistry and hematological parameters of broilers blood were not affected also, except for albumin. The result indicated that 15% level of sweet potato tubers addition was the best in broiler performance especially body weight gain and feed intake which reflect desirable performance economically.

The present study was aimed with to evaluate nutritional quality of major beef cattle feed resources in selected districts of Buno Bedele and Ilu Abbabor zones. The feeds samples were collected during the dry season from January to March, and in wet season from July to August to evaluate the variation of nutritive values of feeds along with varied seasons. The various samples of feedstuffs collected were brought to Jimma University Animal Nutrition Laboratory for chemical analysis. SAS (Version 9.2) and ANOVA test were applied for analyzing the chemical composition and nutritive qualities of feedstuffs. As the study result indicated the chemical composition and nutritive values of major feed resources in the study areas were significantly different at (p<0.01) between feeds samples across the agro ecologies. The crude protein content was varied from 6.71% (teff) to 15.03 % (Desmodium). The neutral detergent fiber (NDF) content of different feeds were varied from 70.17% (Barley) to 63.85% (Pennisetum Clandustinum) and the acid detergent fiber (ADF) also varied from 44.78(brewery by-product) to 57.53% (barley) in similar species. Therefore, it was concluded that the Dry matter (DM), Metabolizable energy (ME) and Digestible crude protein (DCP) of the feeds sampled did not satisfy the maintenance requirements of livestock in the study areas. Hence, the fatteners should feed their animals based on body weight of the animals to hasten the finishing time.