Effects of replacing maize offal with high levels of yam peels on the performance and nutrient digestibility of red Sokoto bucks

Tropical Animal Health and Production - Sixteen red Sokoto (RS) bucks having an average weight of 9.11 kg and aged 5–8 months were used to determine the performance and...     

Effects of vacuum level and pulsation rate on milk ejection and milk flow traits in Tunisian dairy camels (Camelus dromedarius)

Tropical Animal Health and Production - This work aims to compare the effects of milking at two vacuum levels (38 and 48 kPa) and three pulsation rates (60, 90, and 120 cpm) on...     

Effects of monensin feeding on performance,nutrient utilisation and enteric methane production in growing buffalo heifers

Tropical Animal Health and Production - Murrah buffalo heifers (live weight 135?±?17 kg) were fed a total mixed ration without supplementation (CON), or supplemented with...     

Bio-economic evaluation of a reduced phosphorus supplementation strategy for a cow-calf system in Brazil: a case study

Tropical Animal Health and Production - Fertility, weight of calves at weaning, and the economic aspects of a breeding herd receiving mineral supplements containing 75 or 12.5 g of...     

Association of bulk tank milk urea nitrogen concentration with elevated individual cow values and investigation of sampling frequency for accurate assessment

Tropical Animal Health and Production - Individual milk urea nitrogen (MUN) levels ≥?19.63 mg/dL have been recently reported to significantly affect fertility. The objectives...     

Hypodermosis in cattle translocated to Tamil Nadu from Punjab

Tropical Animal Health and Production - Fifteen apparently healthy Kandari cross-bred cattle aged about 4 years were purchased from Rurki, Patiala district of Punjab by a private dairy...     

Criollo goats limit their grass intake in the early morning suggesting a prophylactic self-medication behaviour in a heterogeneous vegetation

Tropical Animal Health and Production - The present study compared the feeding behaviour of goats in the early morning (EM?=?7:00–8:30 a.m.) and late morning...     

Relationship between performance,metabolic profile,and feed efficiency of lactating beef cows

Tropical Animal Health and Production - Twenty-seven Nellore cow-calf pairs were submitted for feed efficiency testing. The animals were weighed every 21 ± 5 days to...     

Cross-sectional study of the G and P genotypes of rotavirus A field strains circulating in regularly vaccinated dairy cattle herds

Tropical Animal Health and Production - Neonatal diarrhea is the main cause of morbidity and mortality in calves up to 30 days old, and rotavirus A (RVA) is the main viral etiology. RVA...     

Chromium propionate improves performance and carcass traits in broilers

There is evidence to suggest that poultry may have a dietary requirement for metabolically available chromium (Cr) that exceeds the amount provided through wheat soybean meal diets. The objective of the present study was to investigate the effects of dietary supplemental organic Cr from Cr propionate at different dose levels (control = 0 μg/kg, T1 = 200 μg/kg, T2 = 400 μg/kg) on the growth performance, carcass traits, and meat quality of broilers. Weight gain and feed intake of each treatment were recorded at the start and after 14, 28 and 35 d, and feed conversion ratios (FCR) were calculated accordingly. At 35 d of age, birds were randomly selected and euthanized for carcass evaluation. Results of the first trial indicate that both Cr propionate treatments increased final body weight (P < 0.05), feed efficiency (P < 0.05) and body weight gain (P < 0.0001). Furthermore, Cr propionate supplementation improved (P < 0.0001) all carcass characteristics. Interestingly, with increased Cr dosage, carcass yield, dressing percentage and breast meat yield increased linearly (P < 0.0001). The second study reveals that the feed intake in the control group was significantly higher compared to both Cr propionate supplemented groups (T1 & T2). Furthermore, the Cr propionate supplemented T2 group displayed a significantly lower FCR than the control and T1 group (P = 0.027). Finally, Cr propionate supplementation increased the dressing percentage compared to control birds (P < 0.0001). In the third experiment, Cr propionate supplementation (T1 & T2) increased final body weight and decreased FCR compared with the control treatment. These effects were highly significant (P < 0.0001) throughout all feeding phases of the trial. Cr propionate supplementation also increased (P < 0.0001) carcass yield, dressing percentage, breast meat yield, leg and thigh weights compared with the control treatment. In conclusion, growth performance, feed conversion, carcass yield, breast and leg meats of broiler birds can be significantly improved by dietary inclusion of Cr propionate. Cr propionate can be supplemented to broiler birds from 1 d old of age at a level that provides 200 or 400 μg/kg organic Cr and can increase the efficiency of broiler production.     

Genetic parameters of pre-weaning weights in crossbred piglets using multi-trait animal model

Tropical Animal Health and Production - Variances and genetic parameters (heritability and correlation) were estimated for pre-weaning weights from birth to 6&nbsp;weeks of age at weekly...     

Anticoccidial effects of Khaya senegalensis aqueous stem bark extract on broiler chickens experimentally infected with Eimeria species

Tropical Animal Health and Production - Graded concentrations (200, 400 and 800&nbsp;mg/kg) of the aqueous stem bark extract of Khaya senegalensis was evaluated for its therapeutic efficacy...     

The use of circular and hybrid external skeletal fixation systems to repair open tibial fractures in large ruminants: a report of six clinical cases

Veterinary Research Communications - A prospective clinical study consisting of six bovines (200–300&nbsp;kg body weight) undergoing open tibial fractures was carried out, to evaluate the...     

Utilization of live body weight,measurements, and eye muscle components to predict carcass performance of fattened Egyptian male buffalo calves

Tropical Animal Health and Production - Carcass performance of 12 fattened male buffalo calves equally grouped by slaughter weights of 300, 350, 400, and 450&nbsp;kg was evaluated. Six...     

Effects of vitamin and mineral premix withdrawal from diets on carcass and meat quality of feedlot steers

Tropical Animal Health and Production - The primary objective of the present study was to assess the effects of vitamin and mineral premix (VMP) withdrawal from the diets 30 and 60&nbsp;days...     

Dietary enzyme addition on the growth performance and carcass characteristics of pigs fed diets containing avocado oil cake silage

Tropical Animal Health and Production - Avocado oil cake (AOC) was mixed with dried grape pomace and sugarcane molasses and ensiled for 90&nbsp;days. A total mixed ration containing 5% AOC...     

Preliminary assessment on potentials of probiotic B. subtilis RX7 and B. methylotrophicus C14 strains as an immune modulator in Salmonella-challenged weaned pigs

Tropical Animal Health and Production - A total of 40 crossbred weaned piglets (28&nbsp;days old; [Landrace × Yorkshire] × Duroc) were used for preliminary assessment on potentials of...     

Synchronous feeding of liquid protein source with different grains on performance,digestibility, ruminal fermentation,blood metabolites,and carcass characters in growing lambs

Tropical Animal Health and Production - The effects of feeding corn steep liquor (CSL; 420&nbsp;g/kg crude protein, DM basis) along with different cereal grains on performance, digestibility,...     

Quantifying the effect of inbreeding on average daily gain and Kleiber ratio in Mazandaran native chickens

Tropical Animal Health and Production - The aims of this study was to evaluate inbreeding effects for growth rate (average daily gain from hatch to 8&nbsp;weeks of age (ADG1–8), average...