Effect of Feeding Sesame Oil Cake on Performance and Cheese Quality of Anglo-Nubian Goats

Abstract

This experiment was conducted to investigate the effects of feeding sesame oil cake (SOC) on milk and cheese quality of Anglo-Nubian goats. Sixteen lactating (20 days-in-milk) Anglo- Nubian goats were used in the experiment that lasted for 60 days. Goats were divided into 4 dietary treatment groups of 4 goats in each and the goats were distributed between the groups in away they represent age, lactation stage and number of borne. Goats were housed on pens of suitable size and were managed as any other commercial goat flock. The animals had free access to straw and water. Four types of dietary treatment were prepared using SOC. The first diet was the control and the other three diets contained: 5, 10, and 15% SOC, respectively. Animals fed twice daily and milked during the feeding time. Milk yield (MY) was recorded daily and samples were taken for chemical analysis. Cheese was made on a monthly basis and samples were taken for sensory evaluation by testing flavor and texture. Incorporation of SOC in goats’ diets at levels of 10 and 15% caused an increase (P<0.05)>

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The Effects of Partial Replacement of Soybean Meal in the Grower Diet with Sun-Dried Blood and Boiled Feather Meals on the Performance of Broiler C

This study was conducted to determine the effects of feeding feather, blood meals, separately, or combined, during the grower phase, on the performance of broiler chickens. Straight-run, one hundred and fifty one day old broiler chicks were reared in deep litter house to 18 days of age, at day 19, one hundred chicks were divided into ten equal replicate groups using completely randomized block design. Five isonitrogenous and isocaloric experimental mash growing diets were prepared as follows : control, diet 2 contained 5% feather meal (FM), diet 3 contained 5% blood meal (BM), diet 4 contained 5%FM plus 3%BM, and diet 5 contained 5%FM plus 5% BM. The chickens were randomly allocated to the five dietary treatment groups having two replicates of 20 chicks in each group . Feed intake, weight gain, feed conversion ratio, and carcass characteristics were not significantly affected by dietary treatments. Feed conversion was numerically better for the control birds followed by those fed 5% BM. Birds fed the diet that contained feather meal plus blood meal 5%BM, and 5%FM diets had feed conversion numerically lower than the birds fed the control . The results indicated that heated sun-dried blood meal up to 5% or boiled feather meal up to 5% can be incorporated in the growing broiler diet without any adverse effect on production variables during the growing and at the end of the rearing period.

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Effect of Light Stimulation and Body Weight on Productive Performance of Broiler Breeder Hens

An experiment with broiler breeder pullet's was carried out to determine the effect of pattern of light stimulation and pullets body weight at 20 wk of age on body weight and age at onset of egg laying. Two light stimulation treatments were used: abrupt light stimulation (ALS) in which hours of light were increased to 10 hr at 21 wk, 12 hr at 5% egg production, 14 hr at 35% egg production, and finally to 16 hr at 65% egg production; and step-up light stimulation (SLS) in which hours of light were increased to 12 hr at 21 wk of age, then by half an hour weakly until 16 hrs of light are attained at 29 wk of age. Pullets were randomly assigned to one of three body weight groups: low weight (1800 g), medium weight (2200 g), or heavy weight (2600 g) at 20 wk of age. The results obtained indicated that pattern of light stimulation and weight at 20 wk did not markedly affect egg production, however, pullets exposed to SLS or ALS produced the lightest eggs. A numerical advancement occurred in age at first egg due to SLS. Significant weight gain occurred in low weight pullets due to SLS. The results of this experiment indicated that SLS of low weight broiler breeder pullets represents a viable means for advancing onset of lay, and increasing weight gain at onset of lay.

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Effects of different level of Phytase on Broilers Performance and Body Status of Phosphorus

This experiment was conducted to investigate the effect microbial phytase supplementation on broilers performance, nutrient digestibility, visceral organ mass, carcass cuts and body status of Ca and P. a total of 200 day-old Cobb 500 chicks were used in the experiment. Birds were partitioned into five experimental groups of 40 birds in each. Each treatment was composed of 4 replicates with 10 birds in each. The control group was fed a commercial starter and finisher diet. The second treatment was a phosphorus deficient diet, while the third, fourth and fifth treatments were fed a phosphorus deficient diets plus the microbial phytase. Phytase enzyme was incorporated at levels 1000, 2000 and 3000 PU/kg feed for the last three treatments, respectively. At the last week of experiment, three birds from each replicate were used in metabolic trial. However, at time of termination of the experiment, the same birds were killed for carcass cuts, visceral organ mass and tibia ash content investigations. The experiment lasted for 42 days. Results of the experiment showed that addition of phytase to P-deficient diets improved (P

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Effects Of Various Sanitizing Treatments On Hatchability Of Broiler Breeder Eggs

Abstract

In the commercial broiler breeder farms and hatcheries, formaldehyde fumigation is routinely carried out to disinfect hatching eggs, Dipping of hatching eggs has not been practiced as means of disinfection locally. The proper use of disinfection is essential. This study was carried out to determine the effect of different disinfection practices on hatchability, egg weight loss, embryonic mortality and early chick performance. Nest–clean and dirty eggs were exposed to formaldehyde fumigation (control) or immersed in worm water (40Cº) followed by dipping for 5 minutes in one of the following disinfectant solutions: 1% formalin, agri – germ, or 3% hydrogen peroxide solution. Early chick mortality and hatchability of fertile eggs were not effected by treatments, but they were numerically greater in eggs dipped in hydrogen peroxide solution. None of the treatments affected egg weight loss throughout the first 18-days of incubation. The use of one-step dipping rather than the common fumigation in- farm and in-hatchery did not adversely affect hatchability. Body weights, chick mortality and weight gains did not differ by treatment. The use of one-step disinfection , and the use of hydrogen peroxide as an in-farm dip for hatching eggs may be a possible alternative to formaldehyde fumigation.

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Performance of Awassi Lambs Fed Citrus Pulp and Olive Cake Silage

Abstract

This experiment was conducted to investigate the effects of feeding different home made silages on performance of fattening lambs and nutrients digestibility. Sixteen uniform males of Awassi lambs were used in feeding trial that was lasted for 77 days. The trial was followed by a 6-day digestion trial. Lambs were divided into four experimental groups. Lambs in each group were fed and had free access to water. Three types of silages were prepared using wheat straw (WS), olive cake (OC) and citrus pulp (Cp). The three by-products were respectively used as the following: silage 1, 60/27/13; silage 2, 20/54/26 and 0/48/52, silage 3. The silages were offered to lambs along with fixed amount of a commercial fattening concentrate which was 78% of total rations fed. Performance of lambs was significantly (P<0.05)>

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The Effects of Partial Replacement of Soybean Meal in the Grower Diet with Sun-Dried Blood and Boiled Feather Meals on the Performance of Broiler C

Abstract

This study was conducted to determine the effects of feeding feather, blood meals, separately, or combined, during the grower phase, on the performance of broiler chickens. Straight-run, one hundred and fifty one day old broiler chicks were reared in deep litter house to 18 days of age, at day 19, one hundred chicks were divided into ten equal replicate groups using completely randomized block design. Five isonitrogenous and isocaloric experimental mash growing diets were prepared as follows : control, diet 2 contained 5% feather meal (FM), diet 3 contained 5% blood meal (BM), diet 4 contained 5%FM plus 3%BM, and diet 5 contained 5%FM plus 5% BM. The chickens were randomly allocated to the five dietary treatment groups having two replicates of 20 chicks in each group . Feed intake, weight gain, feed conversion ratio, and carcass characteristics were not significantly affected by dietary treatments. Feed conversion was numerically better for the control birds followed by those fed 5% BM. Birds fed the diet that contained feather meal plus blood meal 5%BM, and 5%FM diets had feed conversion numerically lower than the birds fed the control . The results indicated that heated sun-dried blood meal up to 5% or boiled feather meal up to 5% can be incorporated in the growing broiler diet without any adverse effect on production variables during the growing and at the end of the rearing period .

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