Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Broiler breeders"”.
-
Protein Utilization and Requirements in Broiler Breeders
… have created unintended consequences to the broiler breeder industry. Excessive weight has been shown to have many negative effects, including double hierarchies, multiple ovulations, and fatty liver. In an effort to curb excessive body weight gain, both the protein requirements and feeding …
-
Effects of various male feeding regimens on reproduction in broiler breeders
A study was conducted using commercial broiler breeders with the males fed a diet containing, either 120/0 or 140/0 protein and body weight maintained at either 900/0 or 1000/0 of that recommended by the primary breeder (fed separately), or allowed to eat from the female feeders (controls). Female …
-
Productive performance and fertility of broiler breeders maintained in commercial colony cages and on the conventional floors
… performance and fertility of naturally mated broiler breeders maintained on litter floor versus their counterparts maintained in two tiered colony cages. Cage maintained hens with restricted feeding weighed less (P 0.05) was found in egg weights among treatments. No difference (P > 0.01) was …
-
Comparison of broiler breeder production and fertility in a colony cage system with two different floors versus a slat-floor system
… fertility, and mortality of naturally mated broiler breeders maintained on either a slat and litter floor or in two tiered colony cages. In the first trial there was no difference (P > 0.05) in egg production between the two treatments. There was also no significant difference in hen …
-
Inclusion body hepatitis as a primary disease in commercial broiler chickens
… an economically important, emerging disease of broiler chickens in several countries. Historically, IBH has been identified as a secondary disease, often associated with common immunosuppressive diseases. However, few studies have identified IBH as a primary disease with no apparent association …
-
DEVELOPING STRATEGIES TO CONTROL NECROTIC ENTERITIS IN BROILER CHICKENS
… remains a continuous challenge worldwide in the broiler chicken industry. Therefore, the objective of this thesis was to develop effective control strategies against NE. After the literature review of NE in Chapter 1, the development of subclinical and clinical NE disease models using …
-
Characterization Of Neuronal Groups Regulating Sexual And Agonistic Behavior In Male Chicken (Gallus Gallus)
… of male sexual and agonistic behavior in broiler breeders. First, brain structures associated with sexual and agonistic behavior were identified by mapping Fos expression. The ventromedial subnucleus of medial portion of bed nucleus of the stria teriminalis (BSTM2) was specifically …
-
Epidemiology of Chlamydiaceae in livestock and emerging Chlamydia psittaci infections in chickens
… Ninety-six percent, 93% and 90% of the Belgian broilers, broiler breeders and layers were seropositive. Ninety-one percent of the French broilers were seropositive. In addition, tissues of 5 Belgian and 5 French broiler farms were examined at slaughter. All French farms ware culture positive …
-
Investigation of chicken embryo metabolism and substrate utilization during later development
… 60, 69.0 ± 1.86 g) eggs from 26 versus 42 wk-old broiler breeders, glucose content in albumen decreased to negligible levels by embryonic day (e) 11 whereas mannose and fucose remained constant. Higher yolk glucose content was observed in small eggs from e17 onwards whereas proportions of yolk …